The AD604 is an ultralow noise, very accurate, dual-channel, linear-in-dB variable gain amplifier (VGA) optimized for time-based variable gain control in ultrasound applications; however, it supports any application requiring low noise, wide bandwidth, variable gain control. Each channel of the AD604 provides a 300k? input resistance and unipolar gain control for ease of use. User determined gain ranges, gain scaling (dB/V), and dc level shifting of output further optimize performance.
Two independent linear-in-dB channels
±1.0dB gain accuracy
40MHz (-3dB) bandwidth
300k? input resistance
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
ROHS Compliant - Yes
Spec Sheet available - Yes
Operating Temperature (Maximum):
185 F
Operating Temperature (Minimum):
-40 F
Maximum Frequency Response (Bandwidth):
40000 kHz
Maximum Frequency Response (Bandwidth):
40000000 Hz