Product details

Number of channels (#) 2 Gain (V/V) 1 CMRR Rs=0Ω (Min) (dB) 85 THD + N @ 1 kHz (%) 0.00039 Noise floor (RTO, 20 kHz BW) (dBu) -104.7 Differential input impedance (kΩ) 1000 Common mode input impedance (kΩ) 250 Slew rate (Typ) (V/us) 10 Supply voltage (Max) (V) 36 Supply voltage (Min) (V) 4.5 Iq per channel (Typ) (mA) 5.25 Small-Signal bandwidth (Typ) (MHz) 2.7 Operating temperature range (C) -40 to 125
Number of channels (#) 2 Gain (V/V) 1 CMRR Rs=0Ω (Min) (dB) 85 THD + N @ 1 kHz (%) 0.00039 Noise floor (RTO, 20 kHz BW) (dBu) -104.7 Differential input impedance (kΩ) 1000 Common mode input impedance (kΩ) 250 Slew rate (Typ) (V/us) 10 Supply voltage (Max) (V) 36 Supply voltage (Min) (V) 4.5 Iq per channel (Typ) (mA) 5.25 Small-Signal bandwidth (Typ) (MHz) 2.7 Operating temperature range (C) -40 to 125
TSSOP (PW) 14 32 mm² 5 x 6.4
  • High Common-Mode Rejection:
    91 dB (Typical)
  • High Input Impedance: 1-MΩ Differential
  • Ultra-Low Noise: –104.7 dBu, Unweighted
  • Ultra-Low Total Harmonic Distortion + Noise:
    –120 dB THD+N (22 dBu, 22-kHz Bandwidth)
  • Wide Bandwidth: 2.7 MHz
  • Low Quiescent Current: 6 mA (INA1651, Typical)
  • Short-Circuit Protection
  • Integrated EMI Filters
  • Wide Supply Range: ±2.25 V to ±18 V
  • Available in Small 14-Pin TSSOP Package
  • High Common-Mode Rejection:
    91 dB (Typical)
  • High Input Impedance: 1-MΩ Differential
  • Ultra-Low Noise: –104.7 dBu, Unweighted
  • Ultra-Low Total Harmonic Distortion + Noise:
    –120 dB THD+N (22 dBu, 22-kHz Bandwidth)
  • Wide Bandwidth: 2.7 MHz
  • Low Quiescent Current: 6 mA (INA1651, Typical)
  • Short-Circuit Protection
  • Integrated EMI Filters
  • Wide Supply Range: ±2.25 V to ±18 V
  • Available in Small 14-Pin TSSOP Package

The dual-channel INA1650 and single-channel INA1651 (INA165x) SoundPlus™ audio line receivers achieve an extremely-high common-mode rejection ratio (CMRR) of 91 dB while maintaining an ultra-low THD+N of –120 dB at 1 kHz for 22-dBu signal levels. Precision matching of on-chip resistors give the INA165x devices excellent CMRR performance. These resistors have matching that is far superior compared to external components, and are immune to mismatches introduced by printed circuit board (PCB) layout. Unlike other line receiver products, the INA165x CMRR is characterized over temperature and tested in production to deliver consistent performance in a wide variety of applications.

The INA165x devices operate over a very-wide-supply range of ±2.25 V to ±18 V, on 10.5 mA of supply current. In addition to the line-receiver channels, a buffered mid-supply reference output is included, making the INA165x configurable for dual- or single-supply applications. The mid-supply output can be used as a bias voltage for other analog circuitry in the signal chain. These devices are specified from –40°C to +125°C.

 

The dual-channel INA1650 and single-channel INA1651 (INA165x) SoundPlus™ audio line receivers achieve an extremely-high common-mode rejection ratio (CMRR) of 91 dB while maintaining an ultra-low THD+N of –120 dB at 1 kHz for 22-dBu signal levels. Precision matching of on-chip resistors give the INA165x devices excellent CMRR performance. These resistors have matching that is far superior compared to external components, and are immune to mismatches introduced by printed circuit board (PCB) layout. Unlike other line receiver products, the INA165x CMRR is characterized over temperature and tested in production to deliver consistent performance in a wide variety of applications.

The INA165x devices operate over a very-wide-supply range of ±2.25 V to ±18 V, on 10.5 mA of supply current. In addition to the line-receiver channels, a buffered mid-supply reference output is included, making the INA165x configurable for dual- or single-supply applications. The mid-supply output can be used as a bias voltage for other analog circuitry in the signal chain. These devices are specified from –40°C to +125°C.

 

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Technical documentation

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Type Title Date
* Data sheet INA165x SoundPlus™ High Common-Mode Rejection Line Receivers datasheet (Rev. B) PDF | HTML 28 Nov 2018
Application note Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps PDF | HTML 27 Jul 2021
Application note EMI-Hardened Op Amps Reduce Inaccuracies 28 Sep 2017
Technical article “Trust, but verify” SPICE model accuracy, part 1: common-mode rejection ratio 27 Jul 2017
User guide INA1650 Evaluation Module 30 Nov 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

INA1650EVM — INA1650 Evaluation Module

The INA1650EVM is a hardware platform for evaluating the performance of the INA1650 differential line receiver. The INA1650, a new addition to the SoundPlus™ integrated circuit products, features superior common-mode rejection ratio (CMRR) over a wide temperature range and ultra-low distortion and (...)
User guide: PDF
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Simulation model

INA1650 PSpice Model (Rev. C)

SBOMAA8C.ZIP (23 KB) - PSpice Model
Simulation model

INA1650 TINA-TI Reference Design (Rev. C)

SBOMAA9C.TSC (298 KB) - TINA-TI Reference Design
Simulation model

INA1650 TINA-TI Spice Model (Rev. C)

SBOMAB0C.ZIP (21 KB) - TINA-TI Spice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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TSSOP (PW) 14 View options

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