COAXIAL SOLID-STATEHigh Power Amplifier ZHL-2425-250X+
50Ω

250W

2.4 to 2.5 GHz

THE BIG DEALy High output power, 300W
y 2.4 to 2.5GHz ISM bandy Suitable for CW and pulsed signals
y High gain, 42 dB typicaly High efficiency, 60%y High ruggedness
y Built-in monitoring and protection for temperature,
current forward and reflected powery User friendly I2C control interface

Generic photo used for illustration purposes only
Model No.

ZHL-2425-250X+

Case Style

VU3193Connectors

MCX & N-Type

PRODUCT OVERVIEWThe ZHL-2425-250X+ is a new generation solid state connectorized high-power amplifier module which can be used in a wide range of industrial,
scientific and medical (ISM) applications in the 2400-2500 MHz ISM band. The ZHL-2425-250X+ provides many advantages over traditional
magnetrons, such as longer lifespan, accurate frequency tuning, better frequency stability, precise control of output power, and lower power
supply voltage. This rugged amplifier is capable of amplifying signals (CW & pulsed) from 1W to 300W output power with built-in monitoringand protection for temperature, current, supply voltage, forward power, and reverse power.
The amplifier has internal shutdown circuitry and integrated protection functions for added reliability under difficult operating conditions,making it virtually impossible to destroy both in single and multi-channel systems. The basic amplifier can be controlled externally with a
few logic inputs or through a user friendly I2C control interface to monitor forward and reflected power to support dynamic load analysis,
temperature, current, shutdown alarms, enabling the PA, and for resetting protection alarms. For advanced mode, users may consult the factoryfor more in-depth amplifier control commands, access to FWD/REFL power coefficients, and protection overrides.

KEY FEATURES
FeatureAdvantages

High CW Power

Supports high power applications for a wide range of industrial, scientific and medical applications in the 2400 – 2500
MHz ISM frequency band. Power can be regulated accurately from 1W up to 300W (~P3dB, @+25C).

High Gain

A typical gain of 42 dB allows the ZHL-2425-250+ to be driven to full output power with commercially available
integrated signal generators with a 14dBm output signal.

High Efficiency

The ZHL-2425-250+ uses high efficiency state of the art LDMOS technology. This combined with adaptive frequency
control enables a high efficiency of typically 60% in most applications.

Built-in protection

The amplifier has built-in monitoring and protection for temperature, current, voltage, forward power, reverse power,
and internal shutdown circuitry for added reliability under difficult operating conditions. When the prestored limits
shown in the protection limits table are exceeded the amplifier will shut down.

Ruggedness

The amplifier has excellent reverse isolation and ruggedness with an onboard circulator. Reverse power is monitored,
and the amplifier is shut down when the reverse power exceeds the prestored limits shown in the protection limits table.

Forward & Reverse Power detection

The amplifier features integrated couplers and detectors for Forward (FWD) and Reflected (REFL) power detection.
FWD and REFL power detection supports accurate RF power measurements as well as dynamic load analysis and canbe used to control or shut-off the amplifier by using the internal monitoring or an external controller.

Easy interfacing

Easy access to the amplifiers analog and digital (I2C) data, enabling dynamic ISM applications with either single ormultiple modules to be controlled.

Small and lightweightWith a small footprint (55.9mm x 171.5mm x 15mm) the lightweight (0.29 kg) modular design is flexible for single ormultiple amplifier system integration.

Cooling

The amplifier can either be air or water cooled. Mounting screw holes are available on the amplifier.

Low voltage

The ZHL-2425-250+ is powered by a low voltage 32V supply.
REV. OR
ECO-010918
ZHL-2425-250X+
MCL NY230626www.minicircuits.com

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PAGE 1 OF 11

COAXIAL SOLID-STATEHigh Power Amplifier ZHL-2425-250X+
ELECTRICAL SPECIFICATIONS AT +25°C, 32V, 50Ω SYSTEM, 3.3V LOGIC LEVELSParameter

SymbolFrequency Rangef

Input Power

Pin

Conditions

Min.

Typ.

2400
f=2400 MHz to 2500 MHz

Max.

Units

2500

MHz

—

12.5

15

dBm

250

300

—

Watts

Output Power

POUT@PIN_Typ., f=2400 MHz to 2500 MHz

54

54.8

—

dBm

Power GainGP

@PIN_Typ., f=2400 MHz to 2500 MHz

40

42

—

dB

Gain Flatness

GFLAT@PIN_Typ., f=2400 MHz to 2500 MHz

—

0.5

1.0

dB

Efficiency

η@PIN_Typ., f=2400 MHz to 2500 MHz

52

60

—

Input VSWR

I_VSWR@PIN_Typ., f=2400 MHz to 2500 MHz

—

1.9:1

2.3:1

Operating Voltage

VDC@PIN_Typ., f=2400 MHz to 2500 MHz

31.5

32

32.5

V

Supply Current

IDC@PIN_Typ., f=2400 MHz to 2500 MHz

—

16

18

A

Temperature Sense (basedon analog output)

TsenseTsense=(-72.183 x TEMP_AOUT)+187.04
temperature can also be read thru I2C)

Supply Current Typical(based on analog output)

Icurrent

Icurrent = (6.21 x ISENSE_AOUT)-0.01 (ISENSE_AOUT is the analog voltage on pin 6 of the conn. J2,
current can also be read thru I2C))

PA On / Off–(TEMP_AOUT is the analog voltage on pin 8 of the conn. J2,

MAXIMUM RATINGS2

Parameter

Reverse PowerA

Enable (TTL low) / Disable (TTL high) on Pin 5 of Connector J2

PROTECTION LIMITS1
Temperature Sense

˚C

Symbol3,4Tsense
REFL_POWER_A

Min.

Max.

Parameter

Units

0°C to +65°C-20°C to +85°C

0

65

°C

–

200

Watts

Storage Temperature

53

dBm

DC Voltage

Voltage Supply

VDS_SENSE_A

24

40

V

Current Supply

ISENSE_A—

18

A

Ratings

Operating Temperature 3,4

40V

Input RF Power (no damage)+15 dBm

Power (reflected or other RF source)
into the RF output conn. (no damage)

200W

1.When the prestored limits are exceeded, the amplifier will shut-down and remain
disabled until a reset command is sent thru the I2C interface or by applying a logic
high level to pin 3 of connector J2.
2. Specifications apply to CW signals only. Permanent damage may occur if any ofthese limits are exceeded.
3. This is the sensed operating temperature calculated from the analog output orread thru I2C.
4. There is an offset from the temperature measured at the temp. sense location to
the amplifier pallet base of approximately +10°C. I.e. When the internal sensed
temperature read thru I2C from the PA is 65°C then the temperature at the base of
the pallet is approximately +75°C.

HEATSINK REQUIREMENTS

Depending on the end system design or architecture either water cooling or air cooling must be used to cool the ZHL-2425-250X+ power
amplifier module. In order to provide the user with the flexibility to decide on the cooling type, Mini-Circuits provides the ZHL-2425-250X+
without a heat sink and the user decides what type of cooling they want to use. It is absolutely critical that the amplifier is always mounted toa heatsink where the airflow of a fan on an air-cooled heat sink or the water temperature and flow rate of a water-cooled heatsink is set to keep
the amplifier below 65degC at full RF power when operating, otherwise the amplifier will get too warm and the built-in protection alarms will
be activated and the power amplifier will shut itself down. The Application note, AN-60-110, describes how to mount the ZHL-245-250X+ to a
Mini-Circuits air cooled heatsink (HSK-2425-250+). This is a heat sink that is designed specifically for the ZHL-2425-250X+ amplifier and is alsoavailable through the Mini-Circuits website.

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PAGE 2 OF 11

COAXIAL SOLID-STATEHigh Power Amplifier ZHL-2425-250X+
APPLICATIONThe ZHL-2425-250X+ amplifier module can be used as a building block in any single or multi-channel system for high power RF Energy
applications such as:y Industrial heatingy Materials processingy Food processing (heating, tempering, and pasteurization)y Microwave-assisted chemistryy Plasma generationy Plasma surface treatmenty Disinfection
y Chemistryy RF-excited lasersy Medical (heating, hyperthermia, and ablation)y Semiconductor RF generators

Data
Sheet
Block Diagram ZHL-2425-250(X)+BLOCK
DIAGRAM
VSupply-Input

Vsupply-Monitoring& Current Sense

VDS1

VDS2

VDS3

RFIN

FWD RF Detector

Q R VIN

RFOUT

REFL RF Detector

VGS1

VGS2

TEMPERATURE

Q QR R VINVIN

VGS3

CURRENT

Reverse Det. PowerFWD_DET

Alarm Output
Alarm Out

Trigger
RST Alarm
PA Enable

REFL_DET

Forward Det. Power
Current

Control and Monitoring Circuitry

Supply Voltage

AnalogOutputs

Temp. Sensor

I2C

Alarm InPEOPLE PASSION INNOVATION

1

Mini-Circuits Confidential

APPLICATION OVERVIEWThe ZHL-2425-250X+ can easily be driven by most standard signal generators, when connected to a DC power supply and mounted to a heatsink. The module is ready to deliver RF power to any applicator, i.e., a “device” to contain and/or apply the RF energy. The use of the latest
generation solid state devices guarantees high efficiency, long lifetime, fully controllable and stable output power in a compact module outline.
The amplifier has built-in monitoring and protection for temperature, current, supply voltage, forward power, reverse power, and internal
shutdown circuitry for added reliability under difficult operating conditions, making it virtually impossible to destroy in single and multi-channel
systems due to the integrated circulator and protection functions. When the prestored limits shown in the protection limits table are exceeded
the amplifier will shut down and remain disabled until an alarm reset is sent either by an I2C command or a TTL high applied to pin 3 of themulti-pin connector J2. For advanced mode, users may consult the factory for more in-depth amplifier control commands, access to FWD/REFL
power coefficients, and protection overrides. The ZHL-2425-250X+ can operate in both CW and PWM mode. When operating in PWM modea minimum of four 1000uF or two 2400uF electrolytic capacitors should be used and located on the DC power supply line close to the amplifier
supply terminals in parallel from the +32V supply to ground. These capacitors will increase reliability of the amplifier in PWM mode and improve
the RF waveform overshoot and ripple in the pulse. Increasing the quantity of the electrolytic capacitors (4-8x 1000uF or 2-4x 2400uF) in parallel
will extend the lifetime of these electrolytic capacitors.

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COAXIAL SOLID-STATEHigh Power Amplifier ZHL-2425-250X+
There are two operation modes supported by the ZHL-2425-250X+

1. STANDARD OPERATION MODE (STDOM)y PA Enable/Disabley Built-in protection features enabledy Ability to reset protection shutdown via I2C command or logic high on pin3
y Access to analog outputs for temperature, forward power, reverse power, and current that can be correlated to output powery Access through the I2C to read Temperature (˚C), forward power (dBm or W), reverse power (dBm or W), supply voltage (V), and current (A)y The amplifiers are shipped from the factory in this mode.

2. ADVANCED OPERATION MODE (ADVOM)y All of the “standard operation mode” features are available
y Access to the prestored protection limits for shutdown
y Access to enable/disable internal protection shutdown or change prestored internal shutdown limits (amplifier warranty is no longer valid
in this situation).
y Access to all coefficients and digital data for forward detected power, reverse detected power, temperature, supply voltage, and current
y With either mode the external analog, digital signals, and control logic can optimize the RF vector (frequency, power, and time) dependingon the application’s needs in real time.

CONTROL INTERFACE PIN OUT AND FUNCTIONALITY (J2 MULTI-PIN CONNECTOR, 3.3V LOGIC LEVELS)Pin Number

Label

Type

Functionality and Control

1

TRIG_IN

2

REFL_AOUT

Analog voltage (0 to 3.3V) that can be correlated to the level of the reflected power or power incident at
the J5 connector.

3

RST_ALARM

Reset Alarm – Internal protection shutdown can be reset thru the I2C communication or applying a TTL
high to this pin.

4

FWD_AOUT

Analog voltage (0 to 3.3V) that can be correlated to the level of the forward output power.

5

PA_ENABLE

Enable (TTL low) / Disable (TTL high). Normally low, enabled, and can be disabled when a TTL high isapplied.

6

ISENSE_AOUT

Analog voltage (0 to 3.3V) that correlates to the amplifier current level

7

ALARM_IN

This can be used by a system controller or another ZHL-2425-250X+ amplifier to send an alarm input toshut down the amplifier. This pin is normally low and can be set to a TTL high to shut-down the amplifier.

8

TEMP_AOUT

Analog voltage (0 to 3.3V) that can be correlated to the temperature. See equation in electrical
specification table
Reserved pin for manufacturer

Used during pulse mode operation.

9

Do Not Connect

10

GND

11

ALARM_OUT

12

GND

Ground13

SCL

I2C control

14

GND

Ground15

SDA

I2C control

16

GND

Ground17

Do Not Connect

Reserved pin for manufacturer

18

Do Not Connect

Reserved pin for manufacturer

19

Do Not Connect

Reserved pin for manufacturer

20

Do Not Connect

Reserved pin for manufacturer

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GroundWhen the protection limits are exceeded and the amplifier is shutdown, this pin will go from normally TTL
low to TTL high. This output can be used by an external controller to shut down the system or can beconnected to other ZHL-2425-250X+ amplifiers ALARM_IN pins to shut them down.

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COAXIAL SOLID-STATEHigh Power Amplifier ZHL-2425-250X+
I2C CONTROL AND BASIC COMMANDS (FIRMWARE VERSION A5)
The ZHL-2425-250X+ supports the I2C bus communication standard.
Up to 8 units can be connected on the same I2C clock and data lines with the same base address and different unit addresses through 3 address
bits (A2-A0).
Up to 8 units can be connected on the same I2C clock and data lines with the same base address and different unit addresses through 3 address
bits (A2-A0). All amplifiers from the factory are set to local unit address of 0 by default. See example 1 to set the individual unit address.
The I2C 8 bits control address is composed as follows:
A base address of binary 1010 and 3 unit-address bits + a bit indicating a read or write operation: 1010 [A2][A1][A0][R/W];
the default control address hence evaluates to 0xA0 for a write operation. A2-A0 represents the address bits where logic high = 1 and logic low= 0. For an I2C bus write operation, the last bit W=Write must be 0; For a read operation, the last bit R=Read must be 1.

CW AND PULSE MODE OPERATION:
The amplifier can be operated in CW or pulsed mode. In order to obtain the correct results from reading ADC values with registers 101(ADC_
FWD), 103(ADC_REFL), 105(ADC_Current), 107 (ADC_VDS), and reading power, current, and voltage from registers 245( FWD_dBm) , 247( REFL_dBm), 249 (Current_Amp), 251 (VDS_Volt) through I2C from the ZHL-2425-250X+ the register 132 (ADC_Trigger_Mode) must be set
correctly for each mode. The register 132 should be set to 0 (default) for CW signal mode and set to >0 for PWM mode.
For PWM mode, Pin 1, TRIG_IN, must be used to trigger the internal measurement during the pulse. When the ADC_Trigger_Mode, register
132, is set to >1 and a trigger is issued to Pin 1 on the ZHL-2425-250X+ the firmware will wait for the delay time set in register 130 (delay_after_
trigger) and then record ADC values correlating to forward power, reflected power, current, and supply voltage in a total time of approximately
32μs. To avoid any error from ripple in the beginning of the pulse the delay after trigger has been set to a default minimum of 30μs. Therefore,
the pulse width should not be <62μs, this is with the average count (register 134) set to 1 and the delay after trigger (register 130) set to thedefault of 30μs. The Pulse Width must be greater than DelayAfterTrigger(30μs minimum) +(32 x Avg_Count) μs. The results from reading
registers 101, 103, 105, 107, 245, 247, 249, and 251 will be the values recorded after the last external trigger.
For CW the ADC_Trigger_Mode, register 132, should be set to 0. No external trigger is required and average count and delay after trigger is
not used.

I2C REGISTER ADDRESSES (REQUEST CODE) LOWER THAN 140:
Sending data to the device for that register range will always be by sending the register address followed by 2 bytes High and Low. Reading data
will always be 2 bytes of reading High then Low bytes successively (big endian). Data type integer.
Example 1: Set the individual unit local address to 1 - options for local address are 0 to 7 – default local address is 0
1. I2C_Start
2. I2C_Write (I2C_Control_Address_W)//control address - Write
3. I2C_Write (126)				
//Address register to set the local address
4. I2C_Write (0)				
//write high byte with value 0x00
5. I2C_Write (1)				
//write low byte with value 0x01
6. I2C_Stop				// the new local address will be affected after next reset of the device
Example 2: Reset Alarm after internal protection shutdown event.
1. I2C_Start
2. I2C_Write (I2C_Control_Address_W)//control address - Write
3. I2C_Write (102)				
//Address register to set the reset code
4. I2C_Write (1) 				//write high byte with value 0x01
5. I2C_Write (1) 				//write low byte with value 0x01
6. I2C_Stop				// the amplifier logic will reset the unit
Example 3: Read ADC_FWD value (ADC value correlating to forward detected power).
1. I2C_Start
2. I2C_Write (I2C_Control_Address_W)//control address - Write
3. I2C_Write (101)				
//Address register to get the ADC_FWD value
4. I2C_Stop
5. I2C_Start
6. I2C_Write (I2C_Control_Adress_R)		
//Control Address – Read
7. ByteH=I2C_Read()
8. ByteL=I2C_Read()
9. I2C_Stop

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PAGE 5 OF 11

COAXIAL SOLID-STATEHigh Power Amplifier ZHL-2425-250X+
FOR I2C REGISTER ADDRESSES (REQUEST CODE) 140 AND ABOVE:
Sending data to the device for this register range will always be by sending register address followed by 4 bytes of data High to low. Reading
data will always be 4 bytes of data High to Low (big endian). IMPORTANT: Data should be interpreted as 32 bits float.
Example 4: Set the CAL frequency (i.e., the currently used frequency) for the frequency dependent data that will be read out later i.e., FWD_
dBm, REFL_dBm. Parameters like Currrent_Amp, VDS_V, TFinal_deg do not depend on the current frequency used.
Set the I2CR_Set_CAL_freq to 2450 (Frequency is in MHz; 32bits float)
1. I2C_Start
2. I2C_Write (I2C_Control_Address_W)//control address - Write
3. I2C_Write (240)				
//Address register to set the cal_frequency value
4. I2C_Write (69)				
// Byte4
5. I2C_Write (25)				
// Byte3
6. I2C_Write (32)				
// Byte2
7. I2C_Write (0)				
// Byte1
8. I2C_Stop
Example 5: Get the output power in dBm at the frequency set in the previous example.
Get the I2CR_Get_FWD_dBm :1.
I2C_Start
2.
I2C_Write (I2C_Control_Address_W) //control address - Write
3.
I2C_Write (245)			
//Address register to get the FWD_dBm value
4.
I2C_Stop
5.
I2C_Start
6.
I2C_Write (I2C_Control_Adress_R)//Control Address – Read7.
Byte4=I2C_Read()8.
Byte3=I2C_Read()9.
Byte2=I2C_Read()10.
Byte1=I2C_Read()11.
I2C_Stop

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COAXIAL SOLID-STATEHigh Power Amplifier ZHL-2425-250X+
REGISTER TABLE:
Register #LabelFunction98

Set_I2C_BaseAddress

Set base address, valid values are: 0x90, 0xA0, 0xB099

Get_I2C_BaseAddress

Read base address101

Read_ADC_FWD

Read the ADC value correlating to forward power.

102

I2C_RST_ALARM

Reset the alarm that caused a shutdown. DataByte_L=1 DataByteH=1

103

Read_ADC_REFL

Read the ADC value correlating to reflected or reverse.

105

Read_ADC_Current

Read the ADC value correlating to the DC current drawn by the PA.

107

Read_ADC_VDS

Read the ADC value correlating to the measured supply voltage.

111

Read_ADC_TFinal

Read the ADC value correlating to the temperature.

113

Get_FirmwareID

Read the current firmware ID

115

Get_FirmwareVersion

Read the current firmware version

119

Get_InternalAlarm_Cause

Read the internal alarm cause*

126

Set_I2C_LocalAddress

Set unit address bits [0-7]; requires unit reset to take effect127

Get_I2C_LocalAddress

Read unit address

129

I2C_Get_AvgCount

Get Average count for reading ADCs when triggered.

130

I2C_Set_DelayAfterTrigger

For PWM operation, set delay after trigger before FWD_ADC,REFL_ADC, VDS_ADC,
and Current_ADC values are read during the pulse and saved in firmware. Default set to 30μs.

131

I2C_Get_DelayAfterTrigger

For PWM operation, Read delay after trigger

132

Set_ADC_Trigger_Mode

Set 0 for “normal” reading during CW operation or positive number for Trigger Mode reading during
PWM operation. (See para. CW and Pulse Mode Operation above)133

Get_ADC_Trigger_Mode

134

I2C_Set_AvgCountFor PWM operation, Set Average count for reading ADCs when triggered.
Min. Average Count is 1 (default), Max. is 50.

240

I2CR_Set_CAL_freq

Set freq. in MHz for the data to be read from in registers 241, 245, 247

241

I2CR_Get_CAL_freq

Read Cal frequency in MHz

245

I2CR_Get_FWD_dBm

Read forward power in dBm (4 bytes float)247

I2CR_Get_REFL_dBm

Read reflect power in dBm (4 bytes float)249

I2CR_Get_Current_Amp

Read amplifier current in Amps (4 bytes float)251

I2CR_Get_VDS_Volt

Read Vsupply in volts (4 bytes float)

253

I2CR_Get_TFinal_deg

Read temperature in °C (4 bytes float)*Internal Alarm Cause:
2 bytes value, each bit represents and alarm cause as follows. (bits 8, 9, 12,13,14, and 15 are reserved)
bit0: Reflected Power > Upper Limit
bit1: Reflected Power < Lower Limit 1
bit2: Forward Power > Upper Limit 1
bit3: Forward Power < Lowerr Limit 1
bit4: Current > Upper Limit
bit5: Current < Lower Limit 1
bit6: VSupply > Upper Limit
bit7: Vsupply < Lower Limit
bit10: Temperature > Upper Limit
bit11: Temperature < Lower Limit
1. There is no protection limit set, so there should never be an internal alarm for these parameters.

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COAXIAL SOLID-STATEHigh Power Amplifier ZHL-2425-250X+
OUTLINE DRAWING

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COAXIAL SOLID-STATEHigh Power Amplifier ZHL-2425-250X+
TYPICAL PERFORMANCE DATA (32V, 50Ω SYSTEM)

60

46

60

45

55

45

55

44

50

44

50

43

45

43

45

42

40

42

40

41

35

41

30

40

Gain 2.45GHz @+25C

30

25

39

Gain 2.45GHz @+65C

25

20

38

15

37

38
37

40

44

46
48
50
Output Power (dBm)

52

54

56

Gain & Efficiency as a function of Output Power (W)@ +25˚C base temperature

Eff. 2.45GHz @+25C

20

Eff. 2.45GHz @+65C

40

42

44

46
48
50
Output Power (dBm)

52

54

56

15

Gain & Efficiency as a function of Output Power (W)@ 2.45GHz for +25˚C & +65˚C base temperature

46

60

46

60

45

55

45

55

44

50

44

50

43

45

43

45

42

40

42

40

Gain 2.4GHz
Gain 2.45GHz
Gain 2.5GHz
Eff. 2.4GHz
Eff. 2.45GHz
Eff. 2.5GHz

41
40
39
38
37

25

50

75

100 125 150 175 200 225 250 275 300 325
Output Power (W)Output Power & Efficiency as a function of Frequency
with +12.5dBm Fixed Input Power@ +25˚C base temperature

35

Gain (dB)47

Efficiency (%)

65

47

65

41

30

40

25

39

20

35
Gain 2.45GHz @+25C

37

30

Gain 2.45GHz @+65C

25

Eff. 2.45GHz @+25C

38

15

20

Eff. 2.45GHz @+65C

25

50

75

100 125 150 175 200 225 250 275 300 325
Output Power (W)Output Power & Efficiency as a function of Frequency
with +14dBm Fixed Input Power@ +65˚C base temperature

15

72

330

320

70

320

70

310

68

310

68

300

66

300

66

290

64

290

64

280

62

280

62

270

60

270

60

260

58

260

58

250

Pout @ 12.5dBm Pin, +25˚C

56

250

240

Eff. @ 12.5dBm Pin, +25˚C

54

240

330

230
52
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Frequency (MHz)www.minicircuits.com

Output Power (W)Gain (dB)

42

Efficiency (%)

Gain (dB)39

35

Efficiency (%)

Gain 2.4GHz
Gain 2.45GHz
Gain 2.5GHz
Eff. 2.4GHz
Eff. 2.45GHz
Eff. 2.5GHz

40

65

Efficiency (%)

46

Gain (dB)47

Efficiency (%)

65

47

Output Power (W)Gain & Efficiency as a function of Output Power (dBm)@ 2.45GHz for +25˚C & +65˚C base temperature

72

Efficiency (%)

Gain & Efficiency as a function of Output Power (dBm)@ +25˚C base temperature

56
Pout @ 14dBm Pin, +65˚C

Eff. @ 14dBm Pin, +65˚C

54

230
52
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Frequency (MHz)P.O. Box 350166, Brooklyn, NY 11235-0003(718) 934-4500

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PAGE 9 OF 11

COAXIAL SOLID-STATEHigh Power Amplifier ZHL-2425-250X+
TYPICAL PERFORMANCE DATA (32V, 50Ω SYSTEM)

42.5

9

42.0

8

42.0

8

41.5

7

41.5

7

41.0

6

41.0

6

40.5

5

40.5

5

40.0

4

40.0

4

39.5

3

39.5

3

39.0

2
Gain @ 12.5dBm Pin, +25˚C

38.5

1

Gain Comp. @ 12.5dBm Pin, +25˚C

Gain (dB)

43.0

9Gain Compression(dB)

Gain (dB)

10

10

42.5

43.0

2

39.0
Gain @ 14dBm Pin, +65˚C

38.5

Gain Comp. @ 14dBm Pin, +65˚C

1

38.0
0
2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Frequency (MHz)038.02400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500
Frequency (MHz)FWD_AOUT (forward power analog output voltage)
as a function of Output Power @ +25˚C base temperature

REFL_AOUT (reflected power analog output voltage)
as a function of Power into J5 @ +25˚C base temperature

56

56

54

54
Reverse Power into J5 (dBm)

Output Power (dBm)

52
50
48
46
44
42
40

FWD_AOUT @ 2.4GHz

38

FWD_AOUT @ 2.45GHz

36

FWD_AOUT @ 2.5GHz

34

18.0
17.0
16.0
15.0
14.0
13.0
12.0
11.0
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0

50
48
46
44
42
40

REFL_AOUT @ 2.4GHz

38

REFL_AOUT @ 2.45GHz

36

REFL_AOUT @ 2.5GHz

32
1.2

1.4

1.6

1.8

2.0
2.2
2.4
FWD_AOUT (V)

2.6

2.8

3.0

30

3.2

ISENSE_AOUT (current sense analog output voltage)
as a function of Supply Current @ +25˚C base temperature
Pallet Base Temperature (°C)

30

52

34

32

Supply Current (A)Gain & Gain Compression as a function of Frequency
with +14dBm Fixed Input Power@ +65˚C base temperature

Gain Compression (dB)Gain & Gain Compression as a function of Frequency
with +12.5dBm Fixed Input Power@ +25˚C base temperature

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
ISENSE_AOUT (V)Supply Current (A) = (6.21 x ISENSE_AOUT)-0.01

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P.O. Box 350166, Brooklyn, NY 11235-0003

75
70
65
60
55
50
45
40
35
30
25
20
15
10
5

1.2

1.4

1.6

1.8

2.0
2.2
2.4
REFL_AOUT (V)

2.6

2.8

3.0

3.2

TEMP_AOUT (temperature sense analog output voltage)
as a function of Pallet base temperature

1.6

1.7

1.8

1.9

2
2.1
2.2
TEMP_AOUT (V)

2.3

2.4

2.5

Pallet Base Temp. = (-72.183 x Temp AOUT)+187.04(718) 934-4500

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COAXIAL SOLID-STATEHigh Power Amplifier ZHL-2425-250X+
AMPLIFIER INTERFACES AND SUGGESTED MATING HARDWARE*
J1 - MCX Connector Jack, Female Socket 50 Ohm(Molex P/N 73415-1692)
Mating CBL ASSY SMA female-MCX male RG316 6”, Amphenol RF P/N 245130-0106.00 (other lengths avail.)

J2 - Control Connector, 20 Pin(Molex 203564-2017)
Mating connector shell, Molex 501189-2010, and cables with pre-crimped leads, Molex
79758-1018 or 79758-1019.

J3 – Ground Conn., M5
J4 – +32V Supply Conn., M5
Tightening Torque 1.7 N-m (15 in-lbs) with max. of 2.15 N-m (19 in-lbs)
Mating M5 screw (Mcmaster P/N 92095A308)
Belville washer (Mcmaster P/N 90895A027)
Ring Terminal (Mcmaster P/N7113K29)
Output connector N-type female
Recommended Torque for N-type connector mate is 1.36 N-m (12 in-lbs)*Mating hardware not included with amplifier. Similar mating hardware available from other manufactures.

NOTES
A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.
B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights
and benefits contained therein. For a full statement of the standard. Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp

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P.O. Box 350166, Brooklyn, NY 11235-0003(718) 934-4500

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PAGE 11 OF 11