AD604AR - Dual, Ultralow Noise Variable Gain Amplifier - Analog Devices
Ultralow Input Noise at Maximum Gain:
0.80 nV/√Hz, 3.0 pA/√Hz
Two Independent Linear-in-dB Channels
Absolute Gain Range per Channel Programmable:
0 dB to +48 dB (Preamp Gain = +14 dB), through
+6 dB to +54 dB (Preamp Gain = +20 dB)
61.0 dB Gain Accuracy
Bandwidth: 40 MHz (–3 dB)
300 kV Input Resistance
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
Can Drive A/D Converters Directly
APPLICATIONS
Ultrasound and Sonar Time-Gain Control
High Performance AGC Systems
Signal Measurement
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