FEATURES
• Low Noise: -128.9dBu (1.9 nV/√Hz) EIN@60 dB gain
• Low THD+N:
0.001% @ < 40 dB gain
0.006% @ 60 dB gain
• Low Current: 7.0 mA typ
• Wide Bandwidth: 1.7 MHz @ 40dB gain
• High Slew Rate: 50 V/µs
• Wide Output Signal Swing: > +28 dBu
• Gain adjustable from 0 to > 60 dB
• Differential output
• Small 4x4mm QFN16 package
• Mates with 5171 and 5173 Digital Preamplifier Controllers
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Datasheet Download
1583 Datasheet (528 kB)
Low-Noise Differential Audio Preamplifiers
DESCRIPTION
The THAT 1583 is a versatile, high performance current-feedback amplifier suitable for differential microphone preamplifier 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.
In addition to analog-controlled applications, the 1583 is designed to mate perfectly with THAT's series of Digital Preamplifier Controller ICs to produce an optimized, digitally controlled preamplifier.
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