NJM2904D NJR Integrated Circuit (Dual-In-Line Packages) In Stock

Name: NJM2904D
Brand: NJR
SKU: NJM2904D
Availability: InStock

NJR NJM2904D is a dual operational amplifier in an 8-pin DIP package, featuring 85 dB common-mode rejection ratio, 7000 µV max input offset voltage, and 0.25 µA max bias current. It uses voltage-feedback architecture with internal frequency compensation. From $0.50 in stock with worldwide shipping.

NOT RECOMMENDEDIntegrated CircuitVerified Jun 2026

Package / Visual Reference

NJM2904DDual-In-Line Packages

Quick Facts

Manufacturer: NJR
Package: Dual-In-Line Packages
Pin Count: 8
Lifecycle: NOT RECOMMENDED
Datasheet: NJM2904D Datasheet PDF
Category: Integrated Circuit
Price: From $0.1902(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 NJM2904D?

Dual op-amp with 85 dB CMRR and 0.25 µA max input bias current for precision low-frequency signal conditioning
Internal frequency compensation eliminates external capacitor requirements, simplifying circuit design in voltage-feedback applications
8-pin DIP (R-PDIP-T8) package for easy breadboard prototyping and through-hole PCB assembly

What is NJM2904D used for?

The NJM2904D dual operational amplifier is suited for low-frequency analog signal conditioning, comparator circuits, and audio preamplifier stages in consumer electronics and industrial sensor interfaces. Its 85 dB CMRR and 0.25 µA bias current make it effective for differential signal amplification in strain gauge bridges, thermocouple amplifiers, and battery-powered instrumentation. The standard 8-pin DIP package is widely compatible with existing socket footprints and legacy PCB designs.

What are the specifications of NJM2904D?

Factory Lead Time	16Weeks
YTEOL	3
Amplifier Type	OPERATIONAL AMPLIFIER
Architecture	VOLTAGE-FEEDBACK
Average Bias Current-Max (IIB)	0.25 µA
Bias Current-Max (IIB) @25C	0.25 µA
Common-mode Reject Ratio-Nom	85dB
Frequency Compensation	YES
Input Offset Voltage-Max	7000 µV
JESD-30 Code	R-PDIP-T8
JESD-609 Code	e6
Low-Bias	NO
Low-Offset	NO
Micropower	YES
Number of Functions	2
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	DIP8,.3
Package Shape	RECTANGULAR
Package Style	IN-LINE
Power	NO
Programmable Power	NO
Qualification Status	Not Qualified
Slew Rate-Nom	0.5V/us
Supply Current-Max	1.2mA
Supply Voltage Limit-Max	32V
Supply Voltage-Nom (Vsup)	5V
Surface Mount	NO
Technology	BIPOLAR
Temperature Grade	INDUSTRIAL
Terminal Finish	TIN BISMUTH
Terminal Form	THROUGH-HOLE
Terminal Pitch	2.54mm
Terminal Position	DUAL
Unity Gain BW-Nom	200
Wideband	NO
Package	Dual-In-Line Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8542.33.00.01

Where can I find the NJM2904D datasheet?

NJM2904D Datasheet Download

Official datasheet from NJR

What are equivalent replacements for NJM2904D?

Compatible alternatives and drop-in replacements for NJM2904D:

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Frequently Asked Questions

What does the 85 dB CMRR of NJM2904D mean for differential sensor signal amplification?

The NJM2904D achieves 85 dB common-mode rejection ratio (CMRR), meaning it attenuates common-mode noise — such as 50 Hz or 60 Hz mains interference — by a factor of approximately 178,000 relative to the differential signal. This makes it effective for amplifying small differential outputs from strain gauges, thermocouples, and Wheatstone bridges in industrial sensor conditioning, where supply noise and ground loops can otherwise corrupt measurements.

How does the 7000 µV input offset voltage of NJM2904D limit its suitability for precision DC amplification?

The NJM2904D has a maximum input offset voltage of 7000 µV (7 mV), which is relatively high compared to precision op-amps rated below 100 µV. This limits its DC accuracy at high gain settings; at a gain of 100, the 7 mV offset produces a 700 mV output error. It is best suited for AC-coupled audio amplifiers, comparator circuits, and low-gain sensor interfaces where DC offset is trimmed or irrelevant, rather than precision DC instrumentation.

When is the NJM2904D a cost-effective alternative to the LM358 dual op-amp in a design?

The NJM2904D is a drop-in functional equivalent to the industry-standard LM358 dual operational amplifier, sharing the 8-pin DIP pinout, single-supply capability, and voltage-feedback architecture. NJR's NJM2904D can offer competitive pricing for high-volume Japanese-manufactured components and is sourced from a dedicated analog IC supplier. With a 16-week lead time, it is best to confirm availability for production runs; for prototyping, the 8-pin DIP package allows direct socket substitution.

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AvailabilityIn Stock

Reference Price (USD)

From $0.1902

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$1.0869	$1.09
5+	$0.3450	$1.72
915+	$0.2195	$200.84
1180+	$0.2121	$250.28
1580+	$0.1902	$300.52

pcs

Unit price: $1.0869 · Total: $1.09

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

NJM2904D NJR Integrated Circuit (Dual-In-Line Packages) In Stock

What are the key features of NJM2904D?

What is NJM2904D used for?

What are the specifications of NJM2904D?

Compliance & Regulatory

Where can I find the NJM2904D datasheet?

What are equivalent replacements for NJM2904D?

Frequently Asked Questions

What does the 85 dB CMRR of NJM2904D mean for differential sensor signal amplification?

How does the 7000 µV input offset voltage of NJM2904D limit its suitability for precision DC amplification?

When is the NJM2904D a cost-effective alternative to the LM358 dual op-amp in a design?

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

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