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HMC7891 Analog Devices, Inc. (ADI)
RF Limiting Amplifier Module
MFG Part Number: HMC7891
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The HMC7891 is a limiting amplifier that operates over the band of 2 GHz to 18 GHz, with a high gain of 47 dB. The amplifier provides a saturated output power of 13 dBm over the input power range of −30 dBm to +10 dBm, for a limiting dynamic range of 40 dB.

The amplifier can also be used as a frequency tripler due to the high third harmonic output level at saturation. See Figure 14 for a plot of third harmonic levels with input signals from 2 GHz to 6 GHz with an input drive level of 10 dBm.

An integrated voltage regulator provides the proper bias voltage, drawing 300 mA from a single dc power supply of 8 V ± 1 V. The HMC7891 is packaged in a compact modular design with field replaceable SMA connectors.

Key AttributesValue
Frequency Range : Minimum Frequency2000 MHz
Frequency Range : Maximum Frequency18000 MHz
Gain48 dB
Gain Flatness±2 dB
Dynamic Range40 dB
Noise Figure2.8 dB
P1dB11 dBm
Psat0.025 W
Supply Voltage8 VDC
Supply Current300 mA
QuantityUnit Price
1 - 9
10 - 24
25+Get Quote

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