
Analog Devices
GENERAL DESCRIPTION
The AD9631 and AD9632 are very high speed and wide band width amplifiers. They are an improved performance alternative to the AD9621 and AD9622. The AD9631 is unity gain stable. The AD9632 is stable at gains of 2 or greater. Using a voltage feedback architecture, the AD9631/AD9632’s exceptional settling time, bandwidth, and low distortion meet the requirements of many applications that previously depended on current feedback amplifiers. Its classical op amp structure works much more predictably in many designs.
FEATURES
Wide Bandwidth
AD9631, G = +1
AD9632, G = +2
Small Signal
320 MHz
250 MHz
Large Signal (4 V p-p)
175 MHz
180 MHz
Ultralow Distortion (SFDR), Low Noise
–113 dBc Typ @ 1 MHz
–95 dBc Typ @ 5 MHz
–72 dBc Typ @ 20 MHz
46 dBm Third Order Intercept @ 25 MHz
7.0 nV/÷Hz Spectral Noise Density
High Speed
Slew Rate 1300 V/s
Settling 16 ns to 0.01%, 2 V Step
3 V to 5 V Supply Operation
17 mA Supply Current
APPLICATIONS
ADC Input Driver
Differential Amplifiers
IF/RF Amplifiers
Pulse Amplifiers
Professional Video
DAC Current to Voltage
Baseband and Video Communications
Pin Diode Receivers
Active Filters/Integrators/Log Amps