Datasheet Details
| Part number | AD8334 |
|---|---|
| Manufacturer | Analog Devices |
| File Size | 2.07 MB |
| Description | Ultralow Noise VGAs |
| Datasheet |
 AD8334 Datasheet
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General Description
The AD8331/AD8332/AD8334 are single-, dual-, and quadchannel, ultralow noise linear-in-dB, variable gain amplifiers (VGAs).
Optimized for ultrasound systems, they are usable as a low noise variable gain element at frequencies up to 120 MHz.
Key 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.