UMS Digital VGA Amplifiers 6–18GHz/2–4GHz
Mfr. Part #： CHA3511-99F / CHA3512-99F / CHA3513-99F / CHA3514-99F / CHA4102-QEG
Manufacturer： UMS / United Monolithic Semiconductors
Package/Case： Chip / Die, QFN
Description： UMS Digital VGA amplifiers are RF and microwave variable gain amplifier products covering 2–4 GHz S Band and 6–18 GHz broadband applications, designed for gain control, dynamic range management, defense, avionics, radar, communication, and instrumentation systems.
| Part Number | Description | Frequency Range | Gain | Dynamic Range | Noise Figure | P-1dB OUT | Psat | Bias | Package |
| CHA3511-99F | 6–18 GHz Amplifier | 6–18 GHz | 16 dB | 39 dB | 7 dB | 20 dBm | 22 dBm | 190 mA / 4.5 V | Die |
| CHA3512-99F | 6–18 GHz Low Noise DVA | 6–18 GHz | 16 dB | 20 dB | 7 dB | 20 dBm | 23 dBm | 210 mA / 4.5 V | Die |
| CHA3513-99F | 6–18 GHz 3-bit DVA | 6–18 GHz | 19 dB | 25 dB | 12 dB | 18 dBm | 20 dBm | 300 mA / 4.5 V | Die |
| CHA3514-99F | 6–18 GHz 4-bit DVA | 6–18 GHz | 13 dB | 39.5 dB | 7 dB | 18 dBm | 19 dBm | 190 mA / 4.5 V | Die |
| CHA4102-QEG | S Band Digital VGA | 2–4 GHz | 20 dB | 31.5 dB | — | 23.5 dBm | 24.5 dBm | 150 mA / 5 V | QFN |
Q1: What is a UMS Digital VGA amplifier?
A UMS Digital VGA amplifier is a digitally controlled RF or microwave variable gain amplifier designed to provide gain adjustment and dynamic range control in compact MMIC-based systems.
Q2: Which UMS Digital VGA models are available?
A: The main UMS Digital VGA models include CHA3511-99F, CHA3512-99F, CHA3513-99F, CHA3514-99F, and CHA4102-QEG.
Q3: Which UMS Digital VGA model covers S Band?
A: CHA4102-QEG is the S Band Digital VGA model, covering 2–4 GHz with 20 dB gain and 31.5 dB dynamic range.
Q4: Which UMS Digital VGA models cover 6–18 GHz?
A: CHA3511-99F, CHA3512-99F, CHA3513-99F, and CHA3514-99F cover 6–18 GHz.
