OPA124U Texas Instruments Integrated Circuit (Other) In Stock

Name: OPA124U
Brand: Texas Instruments
SKU: OPA124U
Availability: InStock

OPA124U is a precision FET-input operational amplifier in SOIC-8 package, featuring ultra-low bias current of 5fA max, 100dB CMRR, and voltage-feedback architecture. From $7.01, in stock with worldwide shipping.

OBSOLETEIntegrated CircuitVerified May 2026

Package / Visual Reference

OPA124UOther

Quick Facts

Manufacturer: Texas Instruments
Package: Other
Pin Count: 8
Lifecycle: OBSOLETE
Datasheet: OPA124U Datasheet PDF
Category: Integrated Circuit
Price: From $7.0115(MOQ 1)
Temp Range: -25.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of OPA124U?

Ultra-low input bias current of 5fA max for minimal signal loading in high-impedance applications
High common-mode rejection ratio of 100dB (min 92dB) for excellent noise rejection
Voltage-feedback architecture with frequency compensation for stable operation
Input offset current of 5fA max ensuring precision DC accuracy
Wide supply range suitable for demanding instrumentation and measurement systems

What is OPA124U used for?

The OPA124U is ideal for high-impedance sensor interfaces such as pH electrodes, photodiodes, and piezoelectric transducers where ultra-low bias current is critical. It is well-suited for precision instrumentation amplifiers, medical measurement equipment, and scientific data acquisition systems requiring high input impedance and accurate signal conditioning. Its excellent CMRR also makes it effective in differential signal processing and industrial control applications.

What are the specifications of OPA124U?

Pbfree Code	Yes
YTEOL	0
Amplifier Type	OPERATIONAL AMPLIFIER
Architecture	VOLTAGE-FEEDBACK
Average Bias Current-Max (IIB)	0.000005 µA
Bias Current-Max (IIB) @25C	0.000005 µA
Common-mode Reject Ratio-Min	92dB
Common-mode Reject Ratio-Nom	100dB
Frequency Compensation	YES
Input Offset Current-Max (IIO)	0.000005 µA
Input Offset Voltage-Max	800 µV
JESD-30 Code	R-PDSO-G8
JESD-609 Code	e4
Low-Bias	YES
Low-Offset	YES
Micropower	NO
Neg Supply Voltage Limit-Max	-18 V
Neg Supply Voltage-Nom (Vsup)	-15 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-Min	1V/us
Slew Rate-Nom	1.6V/us
Supply Current-Max	3.5mA
Supply Voltage Limit-Max	18V
Supply Voltage-Nom (Vsup)	15V
Surface Mount	YES
Technology	BIPOLAR
Temperature Grade	OTHER
Terminal Finish	NICKEL PALLADIUM GOLD
Terminal Form	GULL WING
Terminal Pitch	1.27mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
Unity Gain BW-Nom	1500
Voltage Gain-Min	200000
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

Where can I find the OPA124U datasheet?

OPA124U Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for OPA124U?

Compatible alternatives and drop-in replacements for OPA124U:

OPA124UATexas Instruments

Operational Amplifier, 1 Func, 500uV Offset-Max, BIPolar, PDSO8

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What is the input bias current of the OPA124U?

The OPA124U features an extremely low maximum input bias current (IIB) of 0.000005 µA (5 femtoamperes) at 25°C, making it ideal for high-impedance signal sources such as pH electrodes and photodiodes where minimal loading is essential.

What package does the OPA124U come in and what are its dimensions?

The OPA124U is available in an SOIC-8 surface-mount package, which offers a compact footprint suitable for space-constrained PCB designs. This standard 8-pin SOIC package is widely compatible with automated assembly processes.

What are typical applications for the OPA124U operational amplifier?

The OPA124U is commonly used in precision instrumentation, medical measurement devices, scientific data acquisition, pH meter front-ends, piezoelectric sensor amplifiers, and any application requiring ultra-low input bias current combined with high common-mode rejection ratio of 100dB.

What is the common-mode rejection ratio (CMRR) of the OPA124U?

The OPA124U offers a typical CMRR of 100dB and a minimum CMRR of 92dB. This high rejection ratio effectively suppresses common-mode noise and interference, which is critical in differential measurement and industrial sensor applications.

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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.

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AvailabilityIn Stock

Reference Price (USD)

From $7.0115

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$11.3700	$11.37
2+	$9.4750	$18.95
10+	$7.5800	$75.80
34+	$7.0115	$238.39

pcs

Unit price: $11.3700 · Total: $11.37

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

“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”

James Wright

Supply Chain Director, CircuitPro Ltd, UK

OPA124U Texas Instruments Integrated Circuit (Other) In Stock

What are the key features of OPA124U?

What is OPA124U used for?

What are the specifications of OPA124U?

Compliance & Regulatory

Where can I find the OPA124U datasheet?

What are equivalent replacements for OPA124U?

Frequently Asked Questions

What is the input bias current of the OPA124U?

What package does the OPA124U come in and what are its dimensions?

What are typical applications for the OPA124U operational amplifier?

What is the common-mode rejection ratio (CMRR) of the OPA124U?

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

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