GENERAL DESCRIPTION
The AD8336 is a low noise, single-ended, linear-in-dB, general purpose variable gain amplifier, usable over a large range of supply voltages. It features an uncommitted preamplifier (preamp) with a usable gain range of 6 dB to 26 dB established by external resistors in the classical manner. The VGA gain range is 0 dB to 60 dB, and its absolute gain limits are −26 dB to +34 dB. When the preamplifier gain is adjusted for 12 dB, the combined 3 dB bandwidth of the preamp and VGA is 100 MHz, and the amplifier is fully usable to 80 MHz. With ±5 V supplies, the maximum output swing is 2 V p-p.

FEATURES
Low noise
   Voltage noise: 3 nV/√Hz
   Current noise: 3 pA/√Hz
Small signal BW: 115 MHz
Large signal BW: 2 V p-p = 80 MHz
Slew rate: 550 V/µs, 2 V p-p
Gain ranges (specified)
   −14 dB to +46 dB, 0 dB to 60 dB
Gain scaling: 50 dB/V
DC-coupled
Single-ended input and output
Supplies: ±3 V to ±12 V
Temperature Range: −55°C to +125°C
Power
   150 mW @ ±3 V, −55°C < T < +125°C
   84 mW @ ±3 V, PWRA = 3 V

APPLICATIONS
Industrial process controls
High performance AGC systems
I/Q signal processing
Video
Industrial and medical ultrasound
Radar receivers