Description
The AD8331/AD8332/AD8334 are single-, dual-, and quadchannel, ultralow noise linear-in-dB, variable gain amplifiers (VGAs).
Features
- Ultralow noise preamplifier (preamp) Voltage noise = 0.74 nV/√Hz Current noise = 2.5 pA/√Hz
3 dB bandwidth AD8331: 120 MHz AD8332, AD8334: 100 MHz
Low power AD8331: 125 mW/channel AD8332, AD8334: 145 mW/channel
Wide gain range with programmable postamp.
- 4.5 dB to +43.5 dB in LO gain mode 7.5 dB to 55.5 dB in HI gain mode
Low output-referred noise: 48 nV/√Hz typical Active input impedance matching Optimized for 10-bit/12-bit ADCs Selectable output clamping level Single 5 V supply operatio.
AD8334_AnalogDevices.pdf
