PRODUCT DESCRIPTION
The AD603 is a low noise, voltage-controlled amplifier for use in RF and IF AGC systems. It provides accurate, pin selectable gains of –11 dB to +31 dB with a bandwidth of 90 MHz or +9 dB to +51 dB with a bandwidth of 9 MHz. Any intermediate gain range may be arranged using one external resistor. The input referred noise spectral density is only 1.3 nV/√Hz and power consumption is 125 mW at the recommended ±5 V supplies.

FEATURES
    “Linear in dB” Gain Control
    Pin Programmable Gain Ranges
        –11 dB to +31 dB with 90 MHz Bandwidth
        +9 dB to +51 dB with 9 MHz Bandwidth
    Any Intermediate Range, e.g., –1 dB to +41 dB with 30 MHz Bandwidth
    Bandwidth Independent of Variable Gain
    1.3 nV/√Hz Input Noise Spectral Density
    60.5 dB Typical Gain Accuracy
    MIL-STD-883 Compliant and DESC Versions Available

APPLICATIONS
    RF/IF AGC Amplifier
    Video Gain Control
    A/D Range Extension
    Signal Measurement