The SSM2019 is a latest generation audio preamplifier, combining 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.
The SSM2019 is a monolithic audio preamplifier designed for excellent noise performance with a typical voltage noise density of 1.0 nV/√Hz at 1 kHz and ultra-low total harmonic distortion (THD) of less than 0.01% at a gain of 100. It features unity gain stability, true differential inputs, and requires only one external component to set the gain.
| Total Harmonic Distortion (G=100, f=1kHz) | < 0.01% |
|---|---|
| Slew Rate (G=10) | 16 V/μs |
| Bandwidth (G=100) | 1 MHz |
| Operating Temperature Range | -40°C to +85°C |
| Supply Voltage Range | +/- 18 V |
The device requires only one external gain set resistor or potentiometer.
The total voltage gain can range from 1 to 3500.
At a voltage gain of 1000, the small-signal bandwidth is 200 kHz.
The input offset voltage is typically 0.25 mV.