SSM2142SZ Audio Line Drivers and Receivers by Analog Devices

Audio Line Drivers and Receivers
Status: Production
Series: SSM2142
RoHS: Compliant
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The SSM2142 is an integrated differential-output buffer amplifier that converts a single-ended input signal to a balanced output signal pair with high output drive. By utilizing low noise thermally matched thin film resistors and high slew rate amplifiers, the SSM2142 helps maintain the sonic quality of audio systems by eliminating power line hum, RF interference, voltage drops, and other externally generated noise commonly encountered with long audio cable runs. Excellent rejection of common-mode noise and offset errors is achieved by laser trimming of the onboard resistors, assuring high gain accuracy. The carefully designed output stage of the SSM2142 is capable of driving difficult loads, yielding low distortion performance despite extremely long cables or loads as low as 600 Ohm, and is stable over a wide range of operating conditions.Based on a cross-coupled, electronically balanced topology, the SSM2142 mimics the performance of fully balanced transformer-based solutions for line driving. However, the SSM2142 maintains lower distortion and occupies much less board space than transformers while achieving comparable common-mode rejection performance with reduced parts count.The SSM2142 in tandem with the SSM2141 differential receiver establishes a complete, reliable solution for driving and receiving audio signals over long cables. The SSM2141 features an Input Common-Mode Rejection Ratio of 100 dB at 60 Hz. Specifications demonstrating the performance of this typical system are included in the data sheet.

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Features

Transformer-Like Balanced Output
Drives 10 V RMS Into a 600 Ω Load
Stable When Driving Large Capacitive Loads and Long Cables
Low Distortion 0.006% typ 20 Hz–20 kHz, 10 V RMS into 600 Ω
High Slew Rate 15 V/µs typ
Low Gain Error (Differential or Single-Ended); 0.7% typ
Outputs Short-Circuit Protected
Available In Space-Saving 8-Pin Mini-DIP Package
Low Cost

Frequently Asked Questions

Where can I find additional details, specifications and documents for a SSM2142SZ?

Additional datasheets, footprints and schematics for SSM2142SZ are listed on our Part Details page. You can also find images and similar parts to SSM2142SZ on this page.

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What category does SSM2142SZ fall under?

The SSM2142SZ is listed under Audio Line Drivers and Receivers.

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Is the SSM2142SZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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