COM A

IN± A

IN+ A

VCC

OUT A

VMID(IN)

VEE

REF A

+

±

VCC

VEE

COM B

IN+ B

IN± B

OUT B

REF B

+

±

INA1650 ONLY

0

5

10

15

20

25

CMRR ( V/V)

C001

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

DATA.

INA1650, INA1651

SBOS818A – DECEMBER 2016 – REVISED SEPTEMBER 2018

INA165x SoundPlus™ High Common-Mode Rejection Line Receivers

1

1 Features

1

•

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

2 Applications

•

Differential Audio Interfaces

•

Audio Input Circuitry

•

Line Drivers

•

Audio Power Amplifiers

•

Audio Analyzers

•

High-End Audio and Video (A/V) Receivers

INA165x Simplified Internal Schematic

3 Description

The INA1650 (dual channel) and INA1651 (single

channel) SoundPlus™ audio line receivers achieve

an extremely high common-mode rejection ratio

(CMRR) of 91 dB while maintaining 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, 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 midsupply reference output is

included, making the INA165x devices 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.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

INA1650

TSSOP (14)

4.40 mm × 5.00 mm

INA1651 (preview)

TSSOP (14)

4.40 mm × 5.00 mm

(1) For all available packages, see the package option addendum

at the end of the data sheet.

CMRR Histogram (5746 Channels)