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  IC Products > Input Stages > Low Noise Preamplifiers  
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Low Noise Preamplifier ICs

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  The 1500 series is a family of self-contained low noise amplifiers intended primarily for use in professional audio applications. These ICs provide high performance standards with very low noise, very wide bandwidth and low current requirements.
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  1510/1512 High Performance Audio Preamplifiers The THAT 1510 and 1512 are high performance current-feedback instrumentation amplifiers designed for low source-impedance preamp and bus summing applications. The ICs are pin compatible with the Analog Devices SSM2019 and SSM2017 (discontinued), and the Texas Instruments INA217 and INA163.

1580 Low-Noise Differential Audio Preamplifier The THAT1580 is a versatile, high performance current-feedback amplifier suitable for differential microphone preamps and bus summing. The IC comes in a small QFN package, saving PCB space over discrete and other integrated solutions.

1583 Low-Cost Low-Noise Differential Audio Preamplifier The THAT1583 is a current-feedback amplifier with very good performance suitable for differential microphone preamps and bus summing. The IC comes in a small QFN package, saving PCB space over discrete and other integrated solutions.

Audio Preamplifier Selector
  1510 1512   1580 1583
 Industry Std Pinout Yes Yes   No No
 Feedback Configuration Fixed Fixed   Flexible Flexible
 Output Configuration Single-ended Single-ended   Differential Differential
 EINfill0dB,Rs=0Ω
fill60dB,Rs=0Ω
fill60dB,Rs=150Ω
-99.7 dBu
-134.8 dBu
-128.9 dBu
-104.1 dBu
-134.8 dBu
-128.9 dBu
  -109.4 dBu
-134.8 dBu
-128.9 dBu
-102.8 dBu
-128.9 dBu
-126.5 dBu
 THD+Nfill60 dB 0.005 % 0.008 %   0.005 % 0.006 %
 Bandwidth -3dB
 (small signal)
fill60 dB



3 MHz
 




1.6 MHz
 

 




0.4 MHz




0.19 MHz
 
 Slew Rate 19 V/µs 19 V/µs   53 V/µs 50 V/µs
 Supply Voltage
fillMin
fillMax
± 5 V
± 20 V
± 5 V
± 20 V
  ± 5 V
± 18 V
± 5 V
± 18 V
 Packages SO-8, DIP-8
SO-14, SO16-Wide
SO-8, DIP-8
SO-14
  QFN-16 QFN-16

For a printable PDF version of the chart above click here: THAT Digital Audio Preamplifier Selector.

Digitally Programmable Preamp Controllers

5171 Digitally Programmable Gain Controller IC
The THAT5171 is a digital gain controller for low-noise, analog, differential, current-feedback audio preamplifiers such as the THAT1580 or THAT1583. When used in conjunction with an appropriate analog gain block, the 5171 can set gain to 5.6dB, or any gain from 13.6dB to 68.6dB in 1dB steps, while preserving low noise and distortion. It supports input signal levels as high as +22 dBu (at 5.6dB gain, and ±17V supplies) in combination with the 1580 (without an external input pad).

5173 Low-Cost Digitally Programmable Gain Controller IC
The THAT5173 is a digital gain controller for low-noise, analog, differential, current-feedback audio preamplifiers such as the THAT1580 or THAT1583. When used in conjunction with an appropriate analog gain block, the 5173 can set gain from 0 to 60dB in 3dB steps, while preserving low noise and distortion. It supports input signal levels as high as +27 dBu (±17V supplies) in combination with the 1580 (without an external input pad).

5263 2-Channel Digitally Programmable Gain Controller IC
The THAT5263 is a 2-channel digital gain controller for low-noise, analog, differential, current-feedback audio preamplifiers such as the THAT1580 or THAT1583. When used in conjunction with an appropriate analog gain block, the 5263 can set gain from 0 to 60dB in 3dB steps, while preserving low noise and distortion. It supports input signal levels as high as +27.5 dBu (at 0dB gain, ±17V supplies, and 1580) without an external input pad.

Digitally Controlled Microphone Preamplifier Chip Sets
  1580/ 5171 1580/ 5173 1583/ 5173     1580/ 5263 1583/ 5263
 Gain Range 5.6, 13.6 - 68.6 dB
(0, 8-63dB with/ 5.6 dB attenuation)
0 - 60 dB     0 - 51 dB
 Step Size 1 dB 3 dB     3 dB
 Max Gain Error
fillTyp
fillMax

0.15 dB
0.5 dB

0.2 dB
0.5 dB

0.2 dB
0.5 dB
 
0-39dB
42-51dB

±0.5 dB
±1.0 dB

±0.5 dB
±1.0 dB
 EIN, Rs=150Ωfill
fill0dB
fill30dB
fill60dB

-108 dBu
-124 dBu
-128 dBu

-106 dBu
-122 dBu
-127 dBu

-100 dBu
-118 dBu
-125 dBu
 
0dB
21dB
51dB

-102.3 dBu
-119.5 dBu
-128.5 dBu

-95.5 dBu
-116 dBu
-126.2 dBu
 THD+N fill21dB 0.0003% 0.0005% 0.0006%   24dB 0.003 % 0.003 %
 Max Input
fill0dB
fill30dB
fill60dB

21 dBu
-3 dBu
-33 dBu

26 dBu
-3 dBu
-33 dBu

26.4 dBu
-3 dBu
-33 dBu
 
0dB
21dB
51dB

+27.5 dBu
-2.3 dBu
-23.3 dBu

26.4 dBu
-2.3 dBu
-23.3 dBu
 Supply Voltage ± 5 V to ± 17 V ± 5 V to ± 17 V     ± 5 V to ± 17 V
 Supply Current 7.9mA (1580)
8.3mA (5171)
16.2mA (Total)
7.9mA (1580)
7.6mA (5173)
15.5mA (Total)
7.0mA (1583)
7.6mA (5173)
14.6mA (Total)
    7.9mA (1580)
0.8mA (5263)
8.7mA (Total)
7.0mA (1583)
0.8mA (5263)
7.8mA (Total)
 Packages QFN-16 (1580)
QFN-32 (5171)
QFN-16 (1580/1583)
QFN-24 (5173)
    QFN-16(1580/1583)
QFN-24(5263)

For a printable PDF version of the above charts click here: THAT Digital Audio Preamplifier Selector.

 
     

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