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FEATURES Two 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 0 dB to +48 dB (FBK Open) 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 Drives A/D Converters Directly APPLICATIONS Ultrasound and Sonar Time-Gain Control High Performance AGC Systems Signal Measurement
Dual, Low Noise, Single-Supply Variable Gain Amplifier AD605
FUNCTIONAL BLOCK DIAGRAM
FIXED GAIN AMPLIFIER +34.