SHF Communication Technologies AG
Wilhelm-von-Siemens-Str. 23D • 12277 Berlin • Germany
Phone +49 30 772 051-0 • Fax +49 30 753 10 78
E-Mail: sales@shf.de • Web: http://www.shf.deDatasheet
SHF M827 AUltra-Broadband Amplifier

SHF reserves the right to change specifications and design without notice – SHF M827 A - V002 – July 22, 2016

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Description
The SHF M827 A is an ultra-broadband RF amplifier with a small footprint and a bandwidth of more than 67
GHz. It is the improved successor to the popular SHF 827 linear driver amplifier.
A single stage amplifier design is employed using our monolithic microwave integrated circuit (MMIC) insidespecial carriers to achieve the ultra-wide bandwidth and the low noise performance.
This extreme bandwidth offers the capability to amplify binary signals of more than 100 Gbps while theperfect linearity enables this amplifier to drive modulators and lasers for PAM, optical QAM, OFDM andanalog signals.

Ease of Use
Only a single 5 V supply is needed for operation.
Upon delivery, the amplifier is already set to deliver maximum gain and 50% crossing. For operation underthese conditions the appropriate pins can be left floating. However, in case gain and crossing shall bemodified, this can be done just by applying another bias.

Applications


Optical Communications

High-Speed Pulse ExperimentsSatellite Communications



Research and Development

Antenna MeasurementsData Transmission

Available Options
01: DC return on input (max. ±1.75 V, max. 35 mA)

1

02: Built-in bias tee on input (max. ±9 V, max. 200 mA)
03: DC return on output (max. ±1.75 V, max. 35 mA)

11

04: Built-in bias tee on output (max. ±9 V, max. 200 mA)

1

MP: Matches the phase of two amplifiers

1

Only one of the options 01 - 04 is available.
If an option is chosen, the maximum gain and the maximum output power might be reduced by up to 1 dB. The low frequency 3 dB Point might beincreased up to 75 kHz. The DC resistance of an bias tee is about 6 Ω.

SHF reserves the right to change specifications and design without notice – SHF M827 A - V002 – July 22, 2016

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Specifications - SHF M827 AParameterUnit

SymbolMaximum RF Input

dBmVPin max

DC Voltage at RF Input

MinTypMaxConditions

Absolute Maximum Ratings
102peak to peak voltage

V±9AC coupled input

DC Voltage at RF Output

V±9AC coupled output

Positive Supply Voltage

Vtyp. 0.2 A2, reverse voltage protectedCase Temperature

Tcase

2°C

4.5

55.5

103050At startup the amplifier draws significantly more current.

SHF reserves the right to change specifications and design without notice – SHF M827 A - V002 – July 22, 2016

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Parameter

Unit

SymbolMinTypMax

Conditions

Electrical Characteristics (At 30°C case temperature, unless otherwise specified)High Frequency 3 dB Point

GHzfHIGH

67

Low Frequency 3 dB Point

kHzfLOW

Gain

dB

S21

10Output Power at 1 dB
Compression

dBm
V

P01dB

112.2

10 MHz…30 GHz

Output Power at 2 dB
Compression

dBm
V

P02dB

143.2

10 MHz…30 GHz

Output Power at 3 dB
Compression

dBm
V

P03dB

153.6

10 MHz…30 GHz

Input Return LossdB

S11-10-5-9-3< 40 GHz

Output Return LossdB

S22-12-8-10-5< 40 GHz

Rise Time/Fall Time

pstr/tf70inverting

11

measured at Pin=-27 dBm @ 500 MHz

peak to peak voltage

peak to peak voltage

peak to peak voltage< 65 GHz< 65 GHz
20%...80%

JitterfsGroup Delay Ripple

psPower Consumption

WJRMS

350
4500.7610

Deconvoluted 3, 4

500
600

Deconvoluted 3, 4

±50

500 MHz…40 GHz, 160 MHz aperture

Full Setup 3

Full Setup 3

VDD = 5 V / IDD = 0.14A

Mechanical Characteristics
Input Connector

1.85mm (V) female5

Output Connector

1.85mm (V) male5

34

Measured with SHF 613 A DAC (at full scale) -> DUT (SHF M827 A) -> Agilent 86100A with 70 GHz sampling head & precision time base.
Calculation based on typical results of setup without DUT :𝑡𝑟 𝑑𝑒𝑐𝑜𝑛𝑣𝑜𝑙𝑢𝑡𝑒𝑑 = √(𝑡𝑟 𝑓𝑢𝑙𝑙 𝑠𝑒𝑡𝑢𝑝 )2 − (𝑡𝑟 𝑠𝑒𝑡𝑢𝑝 𝑤/𝑜 𝐷𝑈𝑇 )2 = √(𝑡𝑟 𝑓𝑢𝑙𝑙 𝑠𝑒𝑡𝑢𝑝 )2 − (7 𝑝𝑠)2
2

𝐽𝑅𝑀𝑆 𝑑𝑒𝑐𝑜𝑛𝑣𝑜𝑙𝑢𝑡𝑒𝑑 = √(𝐽𝑅𝑀𝑆 𝑓𝑢𝑙𝑙 𝑠𝑒𝑡𝑢𝑝 )2 − (𝐽𝑅𝑀𝑆 𝑠𝑒𝑡𝑢𝑝 𝑤/𝑜 𝐷𝑈𝑇 ) = √(𝐽𝑅𝑀𝑆 𝑓𝑢𝑙𝑙 𝑠𝑒𝑡𝑢𝑝 )2 − (300 𝑓𝑠)2
5

Other gender configurations are available on request.

SHF reserves the right to change specifications and design without notice – SHF M827 A - V002 – July 22, 2016

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Typical S-Parameters, Group Delay and Phase Response

Aperture of group delay measurement: 160 MHz

SHF reserves the right to change specifications and design without notice – SHF M827 A - V002 – July 22, 2016

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Typical Binary Eye Diagrams
All measurements up to 56 Gbps had been performed using a SHF613 A DAC in binary mode and anAgilent 86100A DCA with Precision Time Base Module (86107A) and 70 GHz Sampling Head (86118A).
Faster input signals had been taken from a SHF 603 A multiplexer. These will not be part of the inspection
report delivered with each particular device.

Input Signal @ 30 Gbps, Eye amp: 353 mV

Output Signal @ 30 Gbps, Eye amp: 1.3 V

Input Signal @ 56 Gbps, Eye amp: 361 mV

Output Signal @ 56 Gbps, Eye amp: 1.34 V

SHF reserves the right to change specifications and design without notice – SHF M827 A - V002 – July 22, 2016

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Input Signal @ 80 Gbps, Eye amp: 402 mV

Output Signal @ 80 Gbps, Eye amp: 1.41 V

Input Signal @ 100 Gbps, Eye amp: 378 mV

Output Signal @ 100 Gbps, Eye amp: 1.25 V

Input Signal @ 110 Gbps, Eye amp: 363 mV

Output Signal @ 110 Gbps, Eye amp: 1.18 V

SHF reserves the right to change specifications and design without notice – SHF M827 A - V002 – July 22, 2016

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Typical 4-Level Eye Diagrams
The 32 GBaud measurements had been performed using a SHF 611 C DAC and an Agilent 86100A DCA withPrecision Time Base Module (86107A) and 70 GHz Sampling Head (86118A). Faster input signals had beentaken from a SHF 613 A DAC.
Please note that the inspection will not show 32 GBaud measurements while the 56 GBaud signals will bepresented in the report of each particular amplifier.

Input Signal @ 32 GBaud, ~700 mVpp

Output Signal @ 32 GBaud, ~2.5 Vpp

Input Signal @ 56 GBaud, ~500 mVpp

Output Signal @ 56 GBaud, ~1.8 Vpp

SHF reserves the right to change specifications and design without notice – SHF M827 A - V002 – July 22, 2016

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Handling Instructions
To operate the amplifier a positive supply voltage of approximately +5 V must be applied. The gain can be
adjusted by applying a voltage of 0 to -5 V. If this pin is left open, the amplifier will have maximum gain. Thecrossing can be adjusted by applying a voltage of -5 to +5 V. If this pin is left open a crossing of approximately
50 % is achieved.

-5 V at Pin Gain

-5 V at Pin Crossing+5 V at Pin Crossing

Eye Amp: 0.92 V
Crossing: 42 %Eye Amp: 1.29 V
Crossing: 55.3 %Eye Amp: 1.22 V
Crossing: 46.2 %Typical Low Frequency Response (<1 MHz)SHF reserves the right to change specifications and design without notice – SHF M827 A - V002 – July 22, 2016

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Typical Saturation power

Top (red): 3 dB compression;
Middle (green): 2 dB compression;
Bottom (blue): 1 dB compression

SHF reserves the right to change specifications and design without notice – SHF M827 A - V002 – July 22, 2016

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Mechanical Drawing
4xM
2x5m

13.6m

4.6

26.1
520

2.2
7.1
171811dB

70kHz - 67GHz
P03dB: 15dBm

42123

nc

SHF M827 A

+5V
0.2A

9.6

Gain
0 ... -5V

514Crossing-5V...+5V

13.1

4.7

2x M2 x 4mm

4.6

227
177.16.152.2

All dimensions in mm

All dimensions in mm

Pin assignment might change if a bias tee option is chosen.
The amplifier has low power consumption. So there is for normal use no need to mount a heat sink.
Please ensure that the amplifier works in the defined temperature range.
The amplifier is equipped with mounting holes in case it shall be assembled to other parts.

SHF reserves the right to change specifications and design without notice – SHF M827 A - V002 – July 22, 2016

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User Instructions
ATTENTION!
Electrostatic sensitive GaAs FET amplifier1.

To prevent damage through static charge build up, cables should be always discharged before
connecting them to the amplifier!

2.

Attach a 50 Ohm output load before supplying DC power to the amplifier!

3.

The supply voltage can be taken from any regular 4.5…5.5 V, 0.2 A DC power supply and can beconnected to the supply feed-through filter via an ON / OFF switch.

4.

Using a 3 dB or 6 dB input attenuator will result in a 6 dB or 12 dB increase of the input return loss. Forminimal degradation of amplifier rise time, these attenuators should have a bandwidth specification ofgreater 50 GHz (V/ 1.85mm attenuators)!

5.

An input signal of about 1.6 Vpp will produce saturated output swing of about 4 Vpp.

6.

Higher input voltages will drive the amplifier’s output stage into saturation, leading to waveform peakclipping.

8.

Saturated output voltages can only be used without damage while the amplifier is connected to a 50
Ohm precision load with a VSWR of less than 1.2 or better than 20 dB return loss up to 40 GHz.

9.

While using a reflective load the output voltage has to be reduced to a safe operating level according
to the magnitudes of the reflections.
ATTENTION: At radio frequencies a capacitive load can be transformed to an inductive one throughtransmission lines! With an output stage driven into saturation this may lead to the immediate
destruction of the amplifier (within a few ps)!

10. The input voltage should never be greater than 2 Vpp equivalent to 10 dBm input power.
The input voltage without DC power supplied to the amplifier should never be greater than 2 Vppequivalent to 10 dBm input power.

SHF reserves the right to change specifications and design without notice – SHF M827 A - V002 – July 22, 2016

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