a

SSM2019

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© 2003 Analog Devices, Inc. All rights reserved.

REV. 0

Self-Contained

Audio Preamplifier

FUNCTIONAL BLOCK DIAGRAM

5k

5k

1

5k

5k

V–

5k

OUT

5k

1

REFERENCE

V–

+IN

V+

–IN

GENERAL DESCRIPTION

The SSM2019 is a latest generation audio preamplifier, combin-

ing SSM preamplifier design expertise with advanced processing.

The result is excellent audio performance from a monolithic

device, requiring only one external gain set resistor or potentiom-

eter. The SSM2019 is further enhanced by its unity gain stability.

Key specifications include ultra-low noise (1.5 dB noise figure) and

THD (<0.01% at G = 100), complemented by wide bandwidth

and high slew rate.

Applications for this low cost device include microphone pream-

plifiers and bus summing amplifiers in professional and consumer

audio equipment, sonar, and other applications requiring a low

noise instrumentation amplifier with high gain capability.

FEATURES

Excellent Noise Performance: 1.0 nV/

1.5 dB Noise Figure

Ultra-low THD: < 0.01% @ G = 100 Over the

Full Audio Band

Wide Bandwidth: 1 MHz @ G = 100

High Slew Rate: 16 V/ s @ G = 10

10 V rms Full-Scale Input,

18 V

Unity Gain Stable

True Differential Inputs

Subaudio 1/f Noise Corner

8-Lead PDIP or 16-Lead SOIC

Only One External Component Required

Very Low Cost

Extended Temperature Range: –40 C to +85 C

APPLICATIONS

Audio Mix Consoles

Intercom/Paging Systems

2-Way Radio

Sonar

Digital Audio Systems

PIN CONNECTIONS

8-Lead PDIP (N Suffix)

8-Lead Narrow Body SOIC (RN Suffix)

*

TOP VIEW

(Not to Scale)

8

7

6

5

1

2

3

4

–IN

+IN

V+

OUT

REFERENCE

V–

SSM2019

16-Lead Wide Body SOIC (R

W Suffix)

TOP VIEW

(Not to Scale)

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

NC = NO CONNECT

NC

NC

–IN

+IN

NC

V–

NC

NC

NC

V+

NC

OUT

REFERENCE

NC

SSM2019

*Consult factory for availability.