SSM2019BRNZ

Overview

The SSM2019BRNZ is a self-contained audio preamplifier from Analog Devices Inc. housed in an 8-lead Narrow Body SOIC package. It operates on dual supplies ranging from ±5 V to ±18 V with a supply current of approximately ±4.6 mA at ±15 V. The device features true differential inputs, unity gain stability, and requires only one external resistor for gain setting. Key electrical specifications include a voltage noise density of 1.0 nV/√Hz at 1 kHz (G=1000), a slew rate of 16 V/ms, and a small-signal bandwidth of 200 kHz at G=1000. Total Harmonic Distortion Plus Noise is 0.0085% at G=100.

Feature Summary

• Combines ultra-low noise performance with high gain capability using a single external component.
• Features true differential inputs and unity gain stability for versatile circuit configurations.
• Provides excellent distortion performance across the full audio band.

Applications

• Microphone preamplifiers
• Bus summing amplifiers
• Audio mix consoles
• Sonar systems

Procurement Notes

Verify that the ordering suffix matches the required package type, as the BRNZ designation specifically indicates the 8-lead Narrow Body SOIC option. Confirm RoHS compliance status if environmental regulations apply to your manufacturing process. Ensure the selected variant meets the extended temperature range requirements of –40°C to +85°C for your specific deployment environment.

Selection Notes

Select this component when designing low-noise instrumentation amplifiers requiring high gain accuracy. The fixed internal resistor network simplifies design by eliminating multiple gain-setting components. Consider the input bias current characteristics when interfacing with high-impedance sources, as the device prioritizes low voltage noise over low current noise.

Part Context

This part belongs to the SSM2019 family of self-contained audio preamplifiers manufactured by Analog Devices Inc. The series includes variants such as the SSM2019BNZ in an 8-Lead PDIP package and the SSM2019BRWZ in a 16-Lead Wide Body SOIC package. All variants share identical electrical characteristics but differ in physical footprint and pinout availability.

Replacement Considerations

Direct substitutes within the same family include the SSM2019BNZ and SSM2019BRWZ. These parts offer identical electrical performance but utilize different packaging options. Verify pin compatibility before swapping between the 8-lead and 16-lead versions.

FAQ

How is the voltage gain determined for the SSM2019BRNZ?

The voltage gain is set by a single external resistor connected between pins 1 and 8. The gain equation is G = (10 kΩ / RG) + 1. No resistor is required for unity gain applications.

What is the maximum capacitive load the SSM2019BRNZ can drive?

The device can drive a maximum capacitive load of 5000 pF while maintaining stability.