AD8397ARZ-REEL7

The AD8397 contains two voltage feedback amplifiers capable of driving heavy loads with excellent linearity. The common-emitter, rail-to-rail output stage provides superior output voltage swing compared to a typical emitter-follower output stage, swinging to within 0.5 V of either supply rail when driving a 25 Ω load. Low distortion, high output current, and wide output dynamic range make the AD8397 particularly suited for applications requiring large signal swings into heavy loads. The AD8397 is fabricated on a high speed extra fast complementary bipolar high voltage (XFCB-HV) process, with high bandwidth and fast slew rate characteristics that minimize distortion. It is available in a standard 8-lead SOIC_N package; for higher power dissipation applications, an thermally enhanced 8-lead SOIC_N_EP package is also offered. Both packages operate over a temperature range of −40°C to +85°C.

Applications

• Twisted-pair line driver
• Audio applications
• General AC applications

Key features

• Dual-channel op-amp
• Voltage feedback
• Wide supply voltage range: 3 V to 24 V
• Rail-to-rail output, output swing within 0.5 V of supply rails
• High linearity output current 310 mA peak (driving 32 Ω, with ±12 V supply), while maintaining −80 dBc SFDR
• Low noise, voltage noise density: 4.5 nV/√Hz (100 kHz), current noise density: 1.5 pA/√Hz (100 kHz)
• High speed, −3 dB bandwidth: 69 MHz [G = 1], slew rate: 53 V/μs (RLOAD = 25 Ω)