The AD8397 has two voltage feedback operational amplifiers capable of driving heavy loads with excellent linearity. The common-emitter, rail-to-rail output stage surpasses the output voltage capability of typical emitter-follower output stages and can swing to within 0.5 V of either rail while driving a 25 Ω load. The low distortion, high output current, and wide output dynamic range make the AD8397 ideal for applications that require a large signal swing into a heavy load.
Fabricated with ADI's high speed eXtra Fast Complementary Bipolar High Voltage (XFCB-HV) process, the high bandwidth and fast slew rate of the AD8397 keep distortion to a minimum while also dissipating minimum power. The AD8397 is available in a standard 8-lead SOIC package and, for higher power applications, a thermally enhanced 8-lead SOIC EPAD package. Both packages can operate from -40°C to +85°C.
FEATURES AND BENEFITS
Dual operational amplifier
Voltage feedback
Wide supply range: from 3 V to 24 V
Rail-to-rail output
Output swing to within 0.5 V of supply rails
High linear output current
310 mA peak into 32 Ω on ±12 V supplies while maintaining -80 dBc SFDR
Low noise
4.5 nV/√Hz voltage noise density @ 100 kHz
1.5 pA/√Hz current noise density @ 100 kHz
High speed
69 MHz bandwidth (G = 1, -3 dB)
53 V/µs slew rate (RLOAD = 25 Ω) |
