Variable Gain Amplifiers (VGA)

Variable gain amplifiers with 30+ dB adjustment range and excellent linearity, covering DC-40 GHz for AGC and T/R channel amplitude calibration

Variable Gain Amplifiers Overview

UMS Variable Gain Amplifiers (VGAs) are based on GaAs pHEMT technology, integrating amplifier and digital/analog attenuator functions with over 30 dB of gain control range. Products feature excellent gain linearity and phase stability, widely used in phased array radar T/R channel amplitude calibration, automatic gain control (AGC) loops, and broadband receivers. Digital parallel/serial control interfaces allow flexible adaptation to different system architectures.

This page covers two UMS Product Finder functions:

Amplifier - Analog VGA (7 SKU) - Continuously variable gain via analog control voltage | Amplifier - Digital VGA (5 SKU) - Step-variable gain via digital interface

CHA
2292

CHA2292-99F

16-24GHz Low Noise, Variable Gain Amplifier

Frequency：16-24 GHz Gain：26 dB NF：2.8 dB Pout：11 dBm Packaged：Die

Datasheet RFQ

CHA
2293

CHA2293-99F

24-30GHz Low Noise, Variable Gain Amplifier

Frequency：24-30 GHz Gain：24 dB NF：3 dB Pout：12 dBm Packaged：Die

Datasheet RFQ

CHA
3395

CHA3395-QDG

21-30GHz Medium Power Amplifier

Frequency：21-30 GHz Gain：24 dB NF：4.5 dB Pout：20 dBm Packaged：QFN

Datasheet RFQ

CHA
3396

CHA3396-QDG

27-33.5GHz Medium Power Amplifier

Frequency：27-33.5 GHz Gain：22 dB NF：4.5 dB Pout：19 dBm Packaged：QFN

Datasheet RFQ

CHA
4253

CHA4253-FAB

17-21GHz Medium Power Amplifier

Frequency：17-21 GHz Gain：26 dB NF：- dB Pout：23.5 dBm Packaged：Hermetic SMD

Datasheet RFQ

CHA
4253

CHA4253aQQG

17-24GHz Medium Power Amplifier

Frequency：17-24 GHz Gain：23 dB NF：7.5 dB Pout：24 dBm Packaged：QFN

Datasheet RFQ

CHA
4350

CHA4350-QDG

5.5-11.7GHz Medium Power Amplifier

Frequency：5.7-11.7 GHz Gain：26 dB NF：5.5 dB Pout：24 dBm Packaged：QFN

Datasheet RFQ

CHA
3511

CHA3511-99F

6-18GHz Amplifier

Frequency：18-22 GHz Gain：39 dB NF：20 dB Pout：6 dBm Packaged：Die

Datasheet RFQ

CHA
3512

CHA3512-99F

6-18GHz Low Noise DVA

Frequency：18-23 GHz Gain：20 dB NF：20 dB Pout：6 dBm Packaged：Die

Datasheet RFQ

CHA
3513

CHA3513-99F

6-18GHz 3 bit DVA

Frequency：18-20 GHz Gain：25 dB NF：18 dB Pout：6 dBm Packaged：Die

Datasheet RFQ

CHA
3514

CHA3514-99F

6-18GHz 4 bit DVA

Frequency：18-19 GHz Gain：39.5 dB NF：18 dB Pout：6 dBm Packaged：Die

Datasheet RFQ

CHA
4102

CHA4102-QEG

S Band Digital VGA

Frequency：4-24.5 GHz Gain：31.5 dB NF：23.5 dB Pout：2 dBm Packaged：QFN

Datasheet RFQ

Need Help Selecting VGAs?

Our technical team is familiar with the full line of UMS Variable Gain Amplifiers and can recommend the optimal solution based on your gain range, control mode, and linearity requirements.

Contact Our Technical Team