The AD600/AD602 are dual channel, low noise, wideband variable gain amplifiers optimized for use in ultrasound imaging systems, but are applicable to any application requiring very precise gain, low noise and distortion, and wide bandwidth. Each independent channel provides a gain of 0 dB to +40 dB (AD600) and –10 dB to +30 dB (AD602). The AD600/AD602 output impedance is 50 Ω and offers low distortion, low noise and wide bandwidth.
The document describes the AD600 and AD602, which are dual channel, low noise variable gain amplifiers optimized for ultrasound imaging systems but applicable to other high-performance audio and RF AGC applications. Each independent channel provides a precise gain controlled by voltage, with the AD600 ranging from 0 dB to +40 dB and the AD602 from -10 dB to +30 dB.
| Gain Range (AD600) | 0 dB to +40 dB |
|---|---|
| Gain Range (AD602) | -10 dB to +30 dB |
| Input Noise Spectral Density | 1.4 nV/VHz |
| -3 dB Bandwidth | DC to 35 MHz |
| Total Harmonic Distortion | -60 dBe THD at +1 V Output |
They are optimized for ultrasound imaging systems but applicable to high performance audio and RF AGC systems.
The scale factor is 32 dB/V, defined by an internal voltage reference.