GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3Features•••
•
••
•
•

MACOM PURE CARBIDE™ Amplifier Series
Suitable for CW and Pulsed Applications
CW Operation: 700 W Output PowerHigh Efficiency
Broadband Operation: 896 - 928 MHz
50 V Operation
100% RF Tested
RoHS* Compliant

AC-780S-2

Functional SchematicApplications• 915 MHz Industrial Heating/Welding Systems• Plasma Generators

Description
The MAPC-A1508 is a GaN on Silicon Carbide
HEMT D-mode amplifier suitable for 900 - 930 MHzfrequency operation. The device supports bothpulsed and CW operation with minimum output
power levels of 700 W (58.46 dBm) in an air cavity
ceramic package.

RFIN / VG

12

RFOUT / VD

63
Pad / Flange

Typical RF Performance:

Measured under load-pull at 2.5 dB Compression,
100 µs pulse width, 10% duty cycle.
•VDS = 50 V, IDQ = 550 mA, TC = +25°C

D2

Frequency(MHz)

•

(%)

900

59.6

1978.1

915

59.7

1976.2925

60

1978.2

1

RFIN / VG

RF Input / Gate

2

RFOUT / VD

RF Output / Drain

3Flange3

Ground / Source

3. The flange on the package bottom must be connected to RF,
DC and thermal ground.

VDS = 28 V, IDQ = 550 mA, TC = +25°C

D2Frequency
(MHz)

(%)

900

56.2

17.9

73.5

915

56.5

17.3

71.8

925

56.3

17.2

73.5

1. Load impedance tuned for maximum output power.
2. Load impedance tuned for maximum drain efficiency.

1

Pin Configuration

Ordering Information

MAPC-A1508-AS000

Bulk Quantity

MAPC-A1508-ASTR1

Tape and Reel

MAPC-A1508-ASSB1

Sample Board* Restrictions on Hazardous Substances, compliant to current RoHS EU directive.
MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
For further information and support please visit: https://www.macom.com/support

DC-0027696

GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3

RF Electrical Characteristics: TC = 25C, VDS = 55 V, IDQ = 250 mA
Note: Performance in MACOM Evaluation Test Fixture, 50 Ω system
Parameter

Test Conditions

Symbol

Min.

Typ.

Max.

Units

Small Signal Gain

CW, 915 MHzGSS-20.1-dB

Power Gain

CW, 915 MHz, 3.5 dB Gain Compression

GSAT-

16.6-dB

Saturated Drain Efficiency

CW, 915 MHz, 3.5 dB Gain Compression

SAT-73.2-%

Saturated Output PowerCW, 915 MHz, 3.5 dB Gain Compression

PSAT-59-dBm

4

Gain Variation (-40C to +85C)

Pulsed , 915 MHz

∆G-

0.016

-dB/CPower Variation (-40C to +85C)

Pulsed4, 915 MHz∆P3.5dB-

0.002-dB/CPower Gain

CW, 915 MHz, PIN = 39.6 dBm

GP-

18.8-dB

Drain Efficiency

CW, 915 MHz, PIN = 39.6 dBm

-67.1-%Input Return Loss

CW, 915 MHz, PIN = 39.6 dBm

IRL--12-dB



VSWR = 10:1, No Damage

4Ruggedness: Output Mismatch

Pulsed , All phase angles

RF Electrical Specifications: TA = 25C, VDS = 50 V, IDQ = 550 mA
Note: Performance in MACOM Production Test Fixture, 50 Ω system
Parameter
Power Gain
Saturated Drain Efficiency
Saturated Output Power

Test Conditions

Symbol

Min.

Typ.

Max.

Units

4

Pulsed , 915 MHz, 2.5 dB Gain Compression

GSAT

16.4

17.6

-dB4

SAT

63.3

68.4

-%4PSAT

58.2

58.9-dBm

Pulsed , 915 MHz, 2.5 dB Gain Compression
Pulsed , 915 MHz, 2.5 dB Gain Compression

4. Pulse details: 100 µs pulse width, 10% Duty Cycle.

DC Electrical Characteristics: TA = 25CParameter

Test Conditions

Symbol

Min.

Typ.

Max.

Units

Drain-Source Leakage Current

VGS = -8 V, VDS = 130 V

IDLK--107

mA

Gate-Source Leakage Current

VGS = -8 V, VDS = 0 V

IGLK--107

mA

Gate Threshold Voltage

VDS = 50 V, ID = 107 mA

VT--3.1-V

Gate Quiescent Voltage

VDS = 50 V, ID = 550 mA

VGSQ--2.7-VMaximum Drain Current

VDS = 7 V, pulse width 300 µs

ID, MAX-91-A

2
MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
For further information and support please visit: https://www.macom.com/support

DC-0027696

GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3

Absolute Maximum Ratings5,6,7,8,9

5.
6.
7.
8.
9.

Parameter

Absolute Maximum

Drain Source Voltage, VDS

130 VGate Source Voltage, VGS-10 to 3 V

Gate Current, IG107 mAStorage Temperature Range-65°C to +150°C

Case Operating Temperature Range-40°C to +85°C

Channel Operating Temperature Range, TCH-40°C to +225°C

Absolute Maximum Channel Temperature+250°C

Exceeding any one or combination of these limits may cause permanent damage to this device.
MACOM does not recommend sustained operation above maximum operating conditions.
Operating at drain source voltage VDS < 55 V will ensure MTTF > 2 x 106 hours.
Operating at nominal conditions with TCH ≤ 225°C will ensure MTTF > 2 x 106 hours.
MTTF may be estimated by the expression MTTF (hours) = A e [B + C/(T+273)] where T is the channel temperature in degrees Celsius,
A = 1, B = -38.215, and C = 26,343.

Thermal Characteristics10
Parameter

Test Conditions

SymbolTypicalUnits

Thermal Resistance using
Finite Element Analysis

VDS = 50 V
TC = 85°C,TCH = 225°C

R (FEA)

0.40°C/W

Thermal Resistance using
Infrared Measurement of Die Surface Temperature

VDS = 50 V
TC = 85°C,TCH = 225°C

R(IR)

0.32°C/W

10. Case temperature measured using thermocouple embedded in heat-sink. Contact local applications support team for more details on
this measurement.

Handling Procedures
Please observe the following precautions to avoid
damage:Static Sensitivity
Gallium Nitride Circuits are sensitive to electrostatic
discharge (ESD) and can be damaged by staticelectricity. Proper ESD control techniques should be
used when handling.

3
MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
For further information and support please visit: https://www.macom.com/support

DC-0027696

GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3

Pulsed4 Load-Pull Performance @ 50 V (Reference Plane at Device Leads)
Maximum Output PowerVDS = 50 V, IDQ = 550 mA, TC = 25°C, P2.5dB
Gain
(dB)

POUT
(dBm)

POUT
(W)

(%)

D

AM/PM
()

F0: 0.5 + j0
2F0: 0.64 + j3.9

19.0

59.6

912.0

68.6

48.3

0.5 - j1.6

F0: 0.5 - j0
2F0: 0.8 + j3.9

18.9

59.7

933.3

66.6

45.9

0.6 - j1.7

F0: 0.5 + j0
2F0: 0.8 + j3.9

19.260.0

1000

69.546.4

Frequency(MHz)

ZSOURCE()900

0.5 - j1.5915
925

ZLOAD11()Maximum Drain Efficiency
VDS = 50 V, IDQ = 550 mA, TC = 25°C, P2.5dB
Gain
(dB)

POUT
(dBm)

POUT
(W)

(%)

D

AM/PM
()

F0: 0.7 + j0.8
2F0: 0.64 + j3.9

19.0

56.2

416.9

78.1

14.1

0.8 - j1.8

F0: 0.7 + j0.6
2F0: 0.8 + j3.9

1956.9

489.8

76.2

15.5

1.0 - j1.9

F0: 0.7 + j0.6
2F0: 0.8 + j3.9

1956.9489.8

78.211.9Frequency(MHz)

ZSOURCE()900

0.9 - j1.8

915
925

ZLOAD11()Impedance Reference

ZSOURCE = Measured impedance presented to the input of thedevice at package reference plane.
ZLOAD = Measured impedance presented to the output of thedevice at package reference plane.
11. Load Impedance for optimum output power.
12. Load Impedance for optimum efficiency.

ZS

ZL

ZL

ZS

ZS

ZL

4
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For further information and support please visit: https://www.macom.com/support

DC-0027696

GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3Pulsed4 50 V Load-Pull Performance @ 915 MHz
P2.5dB Loadpull Output Power Contours (dBm)

P2.5dB Loadpull Drain Efficiency Contours (%)

P2.5dB Loadpull Gain Contours (dB)

P2.5dB Loadpull AM/PM Contours (°)

Gain vs. Output Power

Drain Efficiency vs. Output Power2480
Z Peak Efficiency

70

Z Peak Power

Drain Efficiency (%)

Gain (dB)

22201816Z Peak Efficiency

605040302010Z Peak Power

014404244464850525456586062

Output Power (dBm)

404244464850525456586062

Output Power (dBm)

5MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
For further information and support please visit: https://www.macom.com/support

DC-0027696

GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3

Pulsed4 Load-Pull Performance @ 28 V (Reference Plane at Device Leads)
Maximum Output PowerVDS = 28 V, IDQ = 550 mA, TC = 25°C, P2.5dB
Gain(dB)

POUT(dBm)

POUT(W)(%)

D

AM/PM()F0: 0.5 - j0.3
2F0: 0.74 + j3.9

16.4

56.2

416.9

65.4

51

0.6 - j1.6

F0: 0.4 - j0.3
2F0: 0.68 + j3.9

17.1

56.5

446.7

66.9

50.4

0.7 - j1.6

F0: 0.5 - j0.3
2F0: 0.69 + j2.6

16.4

56.3

426.6

65.5

47.3

Frequency(MHz)

ZSOURCE()900

0.5 - j1.4

915
925

ZLOAD11()Maximum Drain Efficiency
VDS = 28 V, IDQ = 550 mA, TC = 25°C, P2.5dB
Gain(dB)

POUT(dBm)

POUT
(W)

(%)

DAM/PM()F0: 0.6 + j0.1
2F0: 0.74 + j3.9

17.9

54.2

263.0

73.5

30.7

0.9 - j1.9

F0: 0.6 + j0.1
2F0: 0.68 + j3.9

17.3

53.8

239.9

71.8

20.8

0.9 - j1.9

F0: 0.6 + j0.1
2F0: 0.69 + j2.6

17.2

53.9

245.5

73.5

16.3

Frequency(MHz)

ZSOURCE()900

0.7 - j1.7

915925ZLOAD11()Impedance Reference

ZSOURCE = Measured impedance presented to the input of thedevice at package reference plane.
ZLOAD = Measured impedance presented to the output of thedevice at package reference plane.
11. Load Impedance for optimum output power.
12. Load Impedance for optimum efficiency.

ZS

ZL

ZL

ZS

ZS

ZL

6
MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
For further information and support please visit: https://www.macom.com/support

DC-0027696

GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3

Pulsed4 28 V Load-Pull Performance @ 915 MHz
P2.5dB Loadpull Output Power Contours (dBm)

P2.5dB Loadpull Drain Efficiency Contours (%)

P2.5dB Loadpull Gain Contours (dB)

P2.5dB Loadpull AM/PM Contours (°)

Gain vs. Output Power

Drain Efficiency vs. Output Power

2280
Z Peak Efficiency

70

Z Peak Power

Drain Efficiency (%)

Gain (dB)

20181614Z Peak Efficiency

605040302010Z Peak Power01240424446485052545658

Output Power (dBm)

404244464850525456

58

Output Power (dBm)

7MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
For further information and support please visit: https://www.macom.com/support

DC-0027696

GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3

Evaluation Test Fixture and Recommended Tuning Solution 900 - 930 MHz

Description

Parts measured on evaluation board (20-mil thick
RT6035HTC). Matching is provided using a combination of lumped elements and transmission lines asshown in the simplified schematic above.
Recommendedtuningsolution
component
placement, transmission lines, and details areshown on the next page.

Bias Sequencing

Turning the device ON
1. Set VGS to pinch-off (VP).
2. Turn on VDS to nominal voltage (50 V).
3. Increase VGS until IDS current is reached.
4. Apply RF power to desired level.

Turning the device OFF
1. Turn the RF power OFF.
2. Decrease VGS down to VP pinch-off.
3. Decrease VDS down to 0 V.
4. Turn off VGS.

8
MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
For further information and support please visit: https://www.macom.com/support

DC-0027696

GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3

Evaluation Test Fixture and Recommended Tuning Solution 900 - 930 MHz

Q1

Reference Designator

ValueTolerance

Manufacturer

Part Number

C110 µF+/- 10 %TDK Corporation

GRM32EC72A106KE05L

C239 pF+/- 5 %

PPI

0805N390JW251X

C347 pF+/- 5 %

PPI

0805N470JW251X

C4

2.2 pF+/- 0.1 pF

PPI0805N2R2BW251X

C52.2 µF+/- 20 %MurataKRM55TR72E225MH01L

C6,C7, C8, C9, C10, C1147 pF+/- 5 %

VishayVJ1111D470JXEQJHT

C1256 pF+/- 2 %

VishayVJ1111D560GXLQJ

R15.1 Ω+/- 5 %YAGEO

RC0603JR-075R1L

L127 nH+/- 5 %

CoilCraft

1008CS-270XJLC

Q1

MACOM GaN Power Amplifier

PCB

MAPC-A1508

RT6035HTC, 20 mil, 1.0 oz. Cu, Au Finish

9
MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
For further information and support please visit: https://www.macom.com/support

DC-0027696

GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3

Typical Performance Curves as Measured in the 900 - 930 MHz Evaluation Test Fixture:
CW 915 MHz, VDS = 55 V, IDQ = 250 mA, TC = 25°C (Unless Otherwise Noted)

Drain Efficiency vs. Output Power and Frequency

Gain vs. Output Power and Frequency

80

2270

Drain Efficiency (%)

21

Gain (dB)

20
19181716900 MHz
915 MHz930 MHz

1514900 MHz
915 MHz930 MHz605040302010035404550553560

40Output Power (dBm)

Gain vs. Output Power and VDS

2170

Drain Efficiency (%)

80

Gain (dB)

2019181755 V
50 V
45 V

15143540403020455055

060354050Pulsed4 Drain Efficiency vs. Output Power and VDS
702060Drain Efficiency (%)

Gain (dB)45

Output Power (dBm)

2119181755 V
50 V
45 V

406050803555

60

221460

10Pulsed4 Gain vs. Output Power and VDS

155555 V
50 V
45 V

Output Power (dBm)

1650

Drain Efficiency vs. Output Power and VDS

221645

Output Power (dBm)

55 V
50 V
45 V

504030201045505560Output Power (dBm)

03540455055

60

Output Power (dBm)

10
MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
For further information and support please visit: https://www.macom.com/support

DC-0027696

GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3

Typical Performance Curves as Measured in the 900 - 930 MHz Evaluation Test Fixture:
Pulsed4 915 MHz, VDS = 55 V, IDQ = 250 mA, TC = 25°C (Unless Otherwise Noted)
Gain vs. Output Power and TC

Drain Efficiency vs. Output Power and TC
802370Drain Efficiency (%)

24

Gain (dB)

222120191860
50
4030
20-40°C
25°C
85°C

1716-40°C
25°C
85°C

3540

1045

5055

060

3540

Output Power (dBm)

45

5055

60

Output Power (dBm)

Gain vs. Frequency, 3.5dB Compression

Drain Efficiency vs. Frequency, 3.5dB Compression

2080
CW
PulsedGain (dB)

Drain Efficiency (%)

18.7

17.5

16.2

7570

65
CW
Pulsed15900

908

915923

60900

930

908

Frequency (MHz)915923930

Frequency (MHz)Output Power vs. Frequency, 3.5dB Compression

Output Power (dBm)

62605856CWPulsed

54
900908915923930

Frequency (MHz)11
MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
For further information and support please visit: https://www.macom.com/support

DC-0027696

GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3

Lead-Free AC-780S-2 Ceramic Package Dimensions††Reference Application Note AN0004363 for mounting recommendations.
Meets JEDEC moisture sensitivity level 3 requirements.
Au plating on flange and leads.

12MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
For further information and support please visit: https://www.macom.com/support

DC-0027696

GaN Amplifier 50 V, 700 W
900 - 930 MHz
MAPC-A1508
Rev. V3

MACOM Technology Solutions Inc. (“MACOM”). All rights reserved.
These materials are provided in connection with MACOM’s products as a service to its customers and may be
used for informational purposes only. Except as provided in its Terms and Conditions of Sale or any separate
agreement, MACOM assumes no liability or responsibility whatsoever, including for (i) errors or omissions in thesematerials; (ii) failure to update these materials; or (iii) conflicts or incompatibilities arising from future changes tospecifications and product descriptions, which MACOM may make at any time, without notice. These materials
grant no license, express or implied, to any intellectual property rights.
THESE MATERIALS ARE PROVIDED "AS IS" WITH NO WARRANTY OR LIABILITY, EXPRESS OR IMPLIED,RELATING TO SALE AND/OR USE OF MACOM PRODUCTS INCLUDING FITNESS FOR A PARTICULARPURPOSE, MERCHANTABILITY, INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHT, ACCURACY ORCOMPLETENESS, OR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES WHICH MAY
RESULT FROM USE OF THESE MATERIALS.
MACOM products are not intended for use in medical, lifesaving or life sustaining applications. MACOM
customers using or selling MACOM products for use in such applications do so at their own risk and agree to fully
indemnify MACOM for any damages resulting from such improper use or sale.

13
MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
For further information and support please visit: https://www.macom.com/support

DC-0027696