Dual, Low Noise, Single-Supply Variable Gain Amplifier Features:2 independent linear-in-dB channels Input noise at maximum gain: 1.8 nV/Hz, 2.7 pA/Hz Bandwidth: 40 MHz (3 dB) Differential input Absolute gain range programmable 14 dB to +34 dB (FBK shorted to OUT) through Variable gain scaling: 20 dB/V through 40 dB/V Stable gain with temperature and supply variations Single-ended unipolar gain control Output common mode independently set Power shutdown at lower end of gain control Single 5 V supply Low power: 90 mW/channel