AD604ARZ

Special Purpose Amplifiers OIC VGA W/ LOW NOISE PREAMP

FEATURES

Ultralow input noise at maximum gain 0.80 nV/√Hz, 3.0 pA/√Hz
2 independent linear-in-dB channels
Absolute gain range per channel programmable 0 dB to 48 dB (preamplifier gain = 14 dB) through 6 dB to 54 dB (preamplifier gain = 20 dB)
±1.0 dB gain accuracy
Bandwidth: 40 MHz (−3 dB)
Input resistance: 300 kΩ
Variable gain scaling: 20 dB/V through 40 dB/V
Stable gain with temperature and supply variations
Single-ended unipolar gain control
Power shutdown at lower end of gain control
Drive ADCs directly

APPLICATIONS

Ultrasound and sonar time-gain controls
High performance AGC systems
Signal measurement