1583N16-U

1583N16-U is a low-noise, differential audio preamplifier IC. It is a versatile, high-performance current-feedback amplifier suitable for differential microphone preamplifiers and bus-summing applications. It improves on previous, traditional current-feedback designs (viz. THAT's 1510 & 1512) by offering a more versatile configuration that can yield lower noise at low gains, lower distortion overall, and higher slew rate. Amplifier gain is determined by three external resistors (RA, RB, and RG). This makes it possible to optimize noise and bandwidth over a wide range of gains, as well as optimize the taper of gain vs. rotation in variable-gain, pot-controlled applications. It is also used in applications such as microphone preamplifiers, digitally-controlled microphone preamplifiers, differential low-noise preamplifiers, differential summing amplifiers, differential variable-gain amplifiers, moving-coil transducer amplifiers, line input stages, audio, sonar, instrumentation.

• Differential output, supply voltage range from 5V to 18V
• Supply current is 7mA typical, input bias current is 2µA typical
• Differential gain is 70dB maximum at (programmed by RA, RB, RG 0 to 70dB)
• Power supply rejection ratio is 105dB typical at (V+ = -(V-); ±5V to ±18V, 0dB gain)
• 14MHz typical -3dB bandwidth at (small signal; RA=RB=2.21Kohm, 0dB gain)
• Slew rate is 50V/µs typical at (VOUT = 10VP-P; RL=2Kohm, CL=30pF; G=20dB)
• Total harmonic distortion + noise is 0.0006% typical at (0dB gain)
• Equivalent input noise voltage is 40nV/√Hz typical at (RA = RB = 2.21Kohm, 0dB gain)
• Maximum differential input level is 28dBu typical at (supply voltage ±18V)
• Operating temperature range from -40°C to +85°C, 16-pin QFN package