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

Automotive, High Common-mode Rejection, Low Distortion Differential Audio Line Receiver - INA1650-Q1


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

The INA1650-Q1 operates over a very-wide-supply range of ±2.25 V to ±12 V, on 10.5 mA of supply current. In addition to the two line-receiver channels, a buffered midsupply reference output is included to allow the INA1650-Q1 to be configured 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.

The INA1650-Q1 features a unique internal layout for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded. This device is specified from –40°C to +125°C.



  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification: 2
    • Device CDM ESD Classification: C5
  • 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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Parametrics Compare all products in Audio Line Receivers

Number of Channels (#)
Gain (V/V)
CMRR Rs=0Ω (Min) (dB)
THD + N @ 1 kHz (%)
Noise Floor (RTO, 20kHz BW) (dBu)
Differential Input Impedance (kΩ)
Common Mode Input Impedance (kΩ)
Slew Rate (Typ) (V/us)
Supply (Min) (V)
Supply (Max) (V)
Iq per channel (Typ) (mA)
Small-Signal Bandwidth (Typ) (MHz)
Operating Temperature Range (C)
Package Group
-40 to 125   

Other qualified versions of INA1650-Q1

Version Part Number Definition
Catalog INA1650 TI's standard catalog product

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