SSM2275 and SSM2475 are dual and quad rail-to-rail output audio amplifiers that achieve lower production costs than the industry standard OP275 (the first Butler Amplifier offered by Analog Devices). This lower cost amplifier also offers operation from a single 5 V supply, in addition to conventional ±15 V supplies. The ac performance meets the needs of the most demanding audio applications, with 8 MHz bandwidth, 12 V/µs slew rate and extremely low distortion. The SSM2275 and SSM2475 are ideal for application in high performance audio amplifiers as well as advanced analog/digital converters and analog/mixed signal applications.
The SSM2275 and SSM2475 are rail-to-rail output audio amplifiers that utilize a Butler Amplifier front end to combine the accuracy and low noise of bipolar transistors with the slew rates and sound quality of FETs. These devices are designed for high-performance audio applications, including multimedia systems, professional audio, synthesizers, and computer sound cards. They offer excellent sonic characteristics with low noise (7 nV/VHz) and low total harmonic distortion (0.0006%).
The document provides comprehensive electrical characteristics for both ±15V and +5V supply operations, including input and output voltage ranges, common-mode rejection ratio, and dynamic performance metrics such as gain bandwidth product and slew rate. It also details absolute maximum ratings, thermal resistance for various package types, and includes ordering information for different package options like PDIP, SOIC, and TSSOP.
| Low Noise | 7 nV/VHz |
|---|---|
| High Output Current | +50 mA |
| Low Supply Current | 1.7 mA/Amplifier |
| Wide Bandwidth | 8 MHz |
| High Slew Rate | 12 V/us |
| Operating Temperature Range | -40°C to +85°C |
| Supply Voltage (±15V) | ±15 V |
The low noise specification is 7 nV/VHz.
The maximum output current is +50 mA.
Yes, both models are stable even when driving capacitive loads.
The SSM2275 is available in 8-lead plastic DIPs, SOICs, and microSOIC surface-mount packages.