SoundPlus™ high common-mode rejection, low distortion differential line receiver for automotive


Product details


Number of channels (#) 1 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) 24 Supply voltage (Min) (V) 4.5 Iq per channel (Typ) (mA) 6 Small-Signal bandwidth (Typ) (MHz) 2.7 Operating temperature range (C) -40 to 125 open-in-new Find other Audio line receivers

Package | Pins | Size

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


  • 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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open-in-new Find other Audio line receivers


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.


open-in-new Find other Audio line receivers

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 INA1651EVM SoundPlus™ High Common-Mode Rejection Line Receiver Evaluation Module Sep. 19, 2018

Design & development

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Hardware development

document-generic User guide
The INA1651EVM is a hardware platform for evaluating the performance of the INA1651 audio line receiver.
  • Eases design by providing a quick and simple way to evaluate the INA1651
  • Professional audio connectors provide an accurate way to test the performance of a end product
  • Easily change from single supply to dual supply with one jumper
  • Accepts both differential and single-ended inputs

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TSSOP (PW) 14 View options

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