Automotive, High Common-mode Rejection, Low Distortion Differential Audio Line Receiver


Product details


Gain (V/V) 1 Iq (Typ) (mA) 6 Number of channels (#) 2 THD + N @ 1 kHz (%) 0.00039 Noise floor (RTO, 20 kHz BW) (dBu) -104.7 Slew rate (Typ) (V/us) 10 Small-Signal bandwidth (Typ) (MHz) 2.7 Operating temperature range (C) -40 to 125 open-in-new Find other Audio line drivers

Package | Pins | Size

TSSOP (PW) 14 32 mm² 5 x 6.4 open-in-new Find other Audio line drivers


  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
  • 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:
    –119 dB THD+N (20 dBu, 22-kHz bandwidth)
  • Short-circuit protection
  • Integrated EMI filters
  • Wide supply range: ±2.25 V to ±12 V
  • Available in small 14-Pin TSSOP package

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The INA1650-Q1 dual-channel and INA1651-Q1 single-channel (INA165x-Q1) SoundPlus™ audio line receivers achieve an extremely high common-mode rejection ratio (CMRR) of 91 dB while maintaining an ultra-low THD+N of –119 dB at 1 kHz for 20-dBu signal levels. Unlike other line receiver products, the INA165x-Q1 CMRR is characterized over temperature and tested in production to deliver consistent performance in a wide variety of applications.

The INA165x-Q1 devices operate over a very-wide-supply range of ±2.25 V to ±12 V. In addition to the line-receiver channels, a buffered midsupply reference output is included to allow the INA165x-Q1 to be configured for dual-supply or single-supply applications. The midsupply output can be used as a bias voltage for other analog circuitry in the signal chain.

The INA1650-Q1 features a unique internal layout for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.


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Technical documentation

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Type Title Date
* Data sheet INA165x-Q1 SoundPlus™ High Common-Mode Rejection Line Receivers datasheet (Rev. C) May 02, 2019
User guide INA1650 Evaluation Module Nov. 30, 2016

Design & development

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Hardware development

document-generic User guide
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 (...)
  • Eases design by providing a quick and simple way to evaluate the INA1650
  • Operates on single supply or dual supply
  • Easily change from differential to single ended input with one jumper
  • Provides the option to increase common mode input impedance

Design tools & simulation

SBOMAA8C.ZIP (23 KB) - PSpice Model
SBOMAA9C.TSC (298 KB) - TINA-TI Reference Design
SBOMAB0C.ZIP (21 KB) - TINA-TI Spice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

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TSSOP (PW) 14 View options

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