SSM2019BRWZ

Overview

The SSM2019BRWZ is a self-contained audio preamplifier from Analog Devices Inc., housed in a 16-lead Wide Body SOIC package. It operates on dual supplies ranging from ±5 V to ±18 V, drawing typical supply currents of ±4.6 mA to ±7.5 mA. Key electrical specifications include an input-referred voltage noise density of 1.0 nV/√Hz at G=1000 and a total harmonic distortion plus noise (THD+N) of less than 0.01% at G=100. The device features a small-signal bandwidth of 1 MHz at G=100 and a slew rate of 16 V/ms at G=10. It offers unity gain stability, true differential inputs, and an operating temperature range of –40°C to +85°C.

Feature Summary

• Requires only one external resistor or potentiometer to set voltage gain, simplifying circuit design.
• Provides excellent noise performance with ultra-low THD across the full audio band.
• Features true differential inputs and subaudio 1/f noise corner characteristics.
• Ensures stability with unity gain capability and high slew rate performance.

Applications

• Audio mix consoles
• Intercom and paging systems
• 2-way radio equipment
• Sonar systems
• Digital audio systems

Procurement Notes

Verify that the ordering suffix matches the required package type, as BRWZ denotes the 16-lead Wide Body SOIC variant. Confirm RoHS compliance status indicated by the Z suffix. Ensure the supply voltage requirements align with the ±5 V to ±18 V operational range specified in the datasheet. Check for any specific revision history updates that may affect pinout or thermal characteristics before finalizing procurement.

Selection Notes

Select this component when low noise and high gain accuracy are critical for professional audio applications. The 16-lead SOIC package offers more available pins compared to the 8-lead versions, though many are NC. Consider the thermal resistance of the SOIC package if operating near maximum temperature limits. Verify that the single external gain resistor requirement fits the board space constraints.

Part Context

This part belongs to the SSM2019 family of self-contained audio preamplifiers designed by Analog Devices. It combines internal precision resistors with external gain setting capabilities to achieve high performance. The BRWZ suffix specifically identifies the 16-lead Wide Body SOIC package option within this product line, distinguishing it from PDIP or narrow SOIC variants.

Replacement Considerations

SSM2019BRWZRL is the reel version of the same component. SSM2019BNZ and SSM2019BRNZ are alternative package options (PDIP and Narrow SOIC) with identical electrical specifications.

FAQ

How is the voltage gain determined for the SSM2019BRWZ?

The voltage gain is set by a single external resistor connected between the RG1 and RG2 pins. The gain equation is G = (10 kΩ / RG) + 1.

What is the input configuration of the SSM2019BRWZ?

The device features true differential inputs (+IN and -IN), allowing for balanced transducer interfacing to maximize noise immunity.

Is the SSM2019BRWZ stable at unity gain?

Yes, the SSM2019 is unity gain stable, allowing for a voltage gain of 1 without requiring additional compensation components.