• 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

Datasheet Download

1583 Datasheet (528 kB)
Low-Noise Differential Audio Preamplifiers


• 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


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.

Key Specifications (see 1583 datasheet for complete specifications)

Parameter Conditions 1583 Typical Units
Equivalent Input Noise 0 dB gain
20 dB gain
40 dB gain
60 dB gain
Total Harmonic Distortion + Noise 0 dB gain
20 dB gain
40 dB gain
60 dB gain
Bandwidth -3dB (small signal) 0 dB gain
20 dB gain
40 dB gain
60 dB gain
Slew Rate 50 V/µs
Supply Voltage Maximum
± 18
± 5
Supply Current No signal 7 mA
Model Package Order Number Pricing (1000) Min Order Quantity Reference
1583 16 pin QFN 1583N16-U $2.29 92 Request Samples
16 pin QFN Tape & Reel 1583N16-UR  Contact us 2000
1583/5173 Demo Board 1583/5173-DEMO $250.00 1
All 1583 parts are RoHS compliant.

Minimum order quantity (MOQ) is one tube or one reel. Parts must be ordered in multiples of the MOQ. Samples are available to qualified applicants. Pricing is subject to change.  ICs designated -UR are available on tape and reel for a modest increase in price and require an extended lead time. Please contact our sales department for pricing and current lead time.

Design Notes (as PDF files)

Design Note 140  Input and Output Circuits for THAT Preamplifier ICs (244k)

More Analog Secrets Your Mother Never Told You (915k)
A sequel to our popular first “Analog Secrets” seminar, this new presentation exposes more design secrets including “extreme performance” microphone preamps, protecting audio inputs/outputs during phantom power faults, and maintaining high dynamic range in low cost applications.

Related Products
  Differential Audio Preamplifiers
THAT 1580 Low Noise Differential Audio Preamplifier 1580 Datasheet
THAT 1583 Low Noise Differential Audio Preamplifier 1583 Datasheet
  Gain Controllers  
THAT 5171 Digital Preamplifier Controller 5171 Datasheet
THAT 5173 Low-Cost Digital Preamplifier Controller 5173 Datasheet
THAT 5263 2 Channel Digital Preamplifier Controller 5263 Datasheet
  Digitally Controlled Microphone Preamplifiers
THAT 1580/5171 5171 Digital Microphone Preamplifier Chip Set  
THAT 1580/5173 5173 Digital Microphone Preamplifier Chip Set  
THAT 1583/5173 5173 Digital Microphone Preamplifier Chip Set  
THAT 1580/5263 5263 Digital Microphone Preamplifier Chip Set  
THAT 1583/5263 5263 Digital Microphone Preamplifier Chip Set  
THAT 626X 626x Dual Programmable-Gain Preamplifier/ADC Driver 626x Datasheet
  Audio Preamplifiers
THAT 1510/1512 Low Noise Single Ended Output Audio Preamplifiers 1510/1512 Datasheet

Additional Resources

Microphone Preamplifier Selector
A side by side comparison of the features and specifications of our microphone preamplifier ICs.

1583/5173 Digitally-Controlled Mic Preamp Demo Board – A THAT Digitally-Controlled Mic Preamp Demo Board (US$250) allows developers to evaluate the performance of the THAT1583 / THAT5173 chipset. The demo board provides a balanced audio input on a Neutrik “combo” connector with 48V phantom power, and a balanced audio output on XLR and ¼” TRS connectors. The supplied graphical user interface (GUI) controls all functions in the 5173 chip via USB. A prototyping area is available for adding or modifying circuitry. See the 5173-DEMO Datasheet for more information.

1583 Surface Mount Adapter Board – For our integrated circuits which are only available in surface mount packages THAT Corporation offers adapter boards which allow one of these surface-mount ICs to interface to a circuit board via traditional thru-hole mounting. These adapters make it easy for a design engineer to evaluate our surface-mount products on a prototype board without having to employ SMT technology. Adapter boards are available to qualified applicants.

Harsh Environment Packaging – TT Semiconductor repackages THAT Corporation’s IC products in ruggidized plastic for the medical, aerospace, defense, and heavy industrial marketplaces.

1583 Material Data Declaration Sheet
Material Data Declaration Sheets (MDDS) disclose the hazardous materials in our integrated circuits as required by the European RoHS directive.