INA143UA Texas Instruments Integrated Circuit (Other) In Stock

Name: INA143UA
Brand: Texas Instruments
SKU: INA143UA
Availability: InStock

INA143UA is a high-speed, precision difference amplifier with selectable gains of G=10 or G=0.1, 96dB CMRR, 250µV max offset voltage, and 150kHz bandwidth. From $1.79, in stock worldwide shipping.

OBSOLETEIntegrated CircuitVerified Apr 2026

Package / Visual Reference

INA143UAOther

Quick Facts

Manufacturer: Texas Instruments
Package: Other
Pin Count: 8
Lifecycle: OBSOLETE
Datasheet: INA143UA Datasheet PDF
Category: Integrated Circuit
Price: From $1.7900(MOQ 1)
Temp Range: -40.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of INA143UA?

Selectable gain of G=10 or G=0.1 for flexible signal conditioning
High CMRR of 96dB (typical) and 80dB (min) for superior common-mode noise rejection
Low input offset voltage of 250µV max for precision measurement accuracy
150kHz bandwidth supports high-speed differential signal amplification
Integrated frequency compensation for stable operation without external components

What is INA143UA used for?

The INA143UA is well-suited for industrial instrumentation and precision measurement systems requiring differential signal amplification. It excels in data acquisition front-ends, bridge sensor interfaces, and audio signal processing where high CMRR and accurate gain are critical. Its dual gain setting also makes it ideal for programmable gain stages in medical equipment and test systems.

What are the specifications of INA143UA?

YTEOL	0
Amplifier Type	OPERATIONAL AMPLIFIER
Architecture	VOLTAGE-FEEDBACK
Bandwidth (3dB)-Nom	0.15MHz
Common-mode Reject Ratio-Min	80dB
Common-mode Reject Ratio-Nom	96dB
Frequency Compensation	YES
Input Offset Voltage-Max	250 µV
JESD-30 Code	R-PDSO-G8
JESD-609 Code	e4
Low-Bias	NO
Low-Offset	YES
Micropower	NO
Neg Supply Voltage Limit-Max	-18 V
Neg Supply Voltage-Nom (Vsup)	-5 V
Number of Functions	1
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	SOP8,.25
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Packing Method	TUBE
Peak Reflow Temperature (Cel)	260
Power	NO
Programmable Power	NO
Qualification Status	Not Qualified
Slew Rate-Nom	4.5V/us
Subcategory	Operational Amplifier
Supply Current-Max	1.2mA
Supply Voltage Limit-Max	18V
Supply Voltage-Nom (Vsup)	5V
Surface Mount	YES
Technology	BIPOLAR
Temperature Grade	INDUSTRIAL
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form	GULL WING
Terminal Pitch	1.27mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Unity Gain BW-Nom	150
Voltage Gain-Max	10
Voltage Gain-Min	0.1
Voltage Gain-Nom	10
Wideband	NO
Package	Other

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 3
ECCN	EAR99
HTS Code	8542.33.00.01
Country of Origin	Malaysia

Where can I find the INA143UA datasheet?

INA143UA Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for INA143UA?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What gain options does the INA143UA support?

The INA143UA supports two fixed gain settings: G=10 for amplifying small differential signals and G=0.1 for attenuating large signals. These gains are set internally, providing precise and stable amplification without requiring external resistors.

What is the CMRR of the INA143UA and why does it matter?

The INA143UA achieves a typical common-mode rejection ratio (CMRR) of 96dB, with a minimum of 80dB. High CMRR is essential in industrial and instrumentation applications to reject noise and interference present on both input lines, ensuring accurate differential signal measurement.

What package does the INA143UA come in?

The INA143UA is available in an 8-pin SOIC (R-PDSO-G8) surface-mount package, making it suitable for compact PCB designs. It complies with JESD-609 e4 standards for lead-free and RoHS-compliant assembly.

What are typical applications for the INA143UA?

The INA143UA is commonly used in precision instrumentation, data acquisition systems, bridge sensor amplification, audio differential receivers, and medical equipment. Its high CMRR and selectable gain make it ideal wherever accurate differential signal conditioning is required.

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.

Aug 6, 2026

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.

Aug 6, 2026

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.

Aug 4, 2026

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.

Aug 4, 2026

Why Buy from FindMyChip

Authorized Source

Verified supply chain with full traceability & inspection

Competitive Pricing

Factory-direct from China distributors, low MOQ

Fast Shipping

DHL Express 3–5 days · FedEx/UPS 5–7 days worldwide

Quality Guaranteed

30-day replacement for defective parts, no questions asked

About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

View all Texas Instruments parts →

More from Texas Instruments

SN74HC138PWT

Small Outline Packages

Integrated Circuit

MCP6292IDGKT

Small Outline Packages

Integrated Circuit

CD4511BMN

Dual-In-Line Packages

Integrated Circuit

UCC2803DG4

Small Outline Packages

Integrated Circuit

MC33078DRE4

Small Outline Packages

Integrated Circuit

TLV6710DDCT

SOT23 (6-Pin)

Integrated Circuit

AvailabilityIn Stock

Reference Price (USD)

From $1.7900

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$3.3500	$3.35
3+	$3.3000	$9.90
5+	$3.1400	$15.70
10+	$2.5170	$25.17
75+	$2.1197	$158.98
500+	$1.7900	$895.00

pcs

Unit price: $3.3500 · Total: $3.35

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”

Marco Rossi

CTO, AutoDrive Systems, Italy

INA143UA Texas Instruments Integrated Circuit (Other) In Stock

What are the key features of INA143UA?

What is INA143UA used for?

What are the specifications of INA143UA?

Compliance & Regulatory

Where can I find the INA143UA datasheet?

What are equivalent replacements for INA143UA?

Frequently Asked Questions

What gain options does the INA143UA support?

What is the CMRR of the INA143UA and why does it matter?

What package does the INA143UA come in?

What are typical applications for the INA143UA?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

You May Also Like