LP2902D Equivalent & Substitute Parts

Part Overview

The LP2902D is a general-purpose operational amplifier integrated circuit manufactured by Texas Instruments, configured as a 4-circuit device in 14-SOIC surface mount packaging. This component is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The LP2902D operates across a wide supply voltage range (3V to 32V) and temperature range (-40°C to 85°C), making it suitable for analog signal processing applications requiring low input bias current and moderate bandwidth characteristics.

Substitute parts are necessary due to the Last Time Buy status of the LP2902D. Alternative components with equivalent electrical and mechanical specifications ensure design continuity and long-term supply chain reliability.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Slew Rate	0.05	V/µs
Gain Bandwidth Product	100	kHz
Current - Input Bias	2	nA
Voltage - Input Offset	2	mV
Current - Supply (x4 Channels)	85	µA
Current - Output / Channel	10	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	32	V
Operating Temperature	-40 to 85	°C
Mounting Type	Surface Mount	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the LP2902D is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Amplifier Type: General Purpose
Number of Circuits: 4
Package / Case: 14-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Voltage - Supply Span: 3V minimum to 32V maximum
Operating Temperature Range: Minimum -40°C, Maximum ≥85°C
RoHS Status: ROHS3 Compliant

Secondary Electrical Parameters (Must Match or Exceed):

Slew Rate: 0.05 V/µs or higher
Gain Bandwidth Product: 100 kHz or higher
Current - Input Bias: 2 nA or lower
Voltage - Input Offset: 2 mV or lower
Current - Supply: 85 µA or lower (per 4 channels)
Current - Output / Channel: 10 mA or higher

Substitute parts are grouped into two categories:

Category A - Direct Equivalents (Identical Electrical Performance): LP2902DR, LP2902M/NOPB, LP2902MX/NOPB

These parts maintain the exact electrical specifications of the LP2902D, including the 0.05 V/µs slew rate and 100 kHz gain bandwidth product. They differ only in packaging format (Cut Tape & Digi-Reel®, Tube, or Tape & Reel).

Category B - Enhanced Performance Substitutes (Superior Electrical Characteristics): LM2902M/NOPB, LM2902MX/NOPB, LM324AM/NOPB, LM324AMX/NOPB, LM324M/NOPB, LM324MX/NOPB

These parts exceed the LP2902D specifications in slew rate (no specification provided, but LinCMOS™ series typically superior), gain bandwidth product (1 MHz vs. 100 kHz), and output current capability (40 mA vs. 10 mA). They operate within the same supply voltage and temperature ranges and maintain ROHS3 compliance.

Category C - Conditional Substitute (Obsolete Status): LM2902DR (Rohm Semiconductor)

This part exceeds LP2902D electrical specifications but carries Obsolete product status, limiting its suitability for new designs despite superior performance characteristics.

Parameter Comparison

Part Number	Manufacturer	Product Status	Slew Rate (V/µs)	GBW (kHz)	Input Bias (nA)	Input Offset (mV)	Supply Current (µA)	Output Current (mA)	Temp Range (°C)	Packaging
LP2902D	Texas Instruments	Last Time Buy	0.05	100	2	2	85	10	-40 to 85	Tube
LP2902DR	Texas Instruments	Active	0.05	100	2	2	85	10	-40 to 85	Cut Tape & Digi-Reel®
LP2902M/NOPB	Texas Instruments	Active	0.05	100	2	2	85	10	-40 to 85	Tube
LP2902MX/NOPB	Texas Instruments	Active	0.05	100	2	2	85	10	-40 to 85	Tape & Reel (TR)
LM2902M/NOPB	Texas Instruments	Active	—	1000	45	2	1500	40	-40 to 85	Tube
LM2902MX/NOPB	Texas Instruments	Active	—	1000	45	2	1500	40	-40 to 85	Cut Tape & Digi-Reel®
LM324AM/NOPB	Texas Instruments	Active	—	1000	45	2	1500	40	0 to 70	Tube
LM324AMX/NOPB	Texas Instruments	Active	—	1000	45	2	1500	40	0 to 70	Cut Tape & Digi-Reel®
LM324M/NOPB	Texas Instruments	Active	—	1000	45	2	1500	40	0 to 70	Tube
LM324MX/NOPB	Texas Instruments	Active	—	1000	45	2	1500	40	0 to 70	Cut Tape & Digi-Reel®
LM2902DR	Rohm Semiconductor	Obsolete	0.3	1200	20	1	1000	30	-40 to 125	Cut Tape & Digi-Reel®

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

Select LP2902DR, LP2902M/NOPB, or LP2902MX/NOPB when the application requires exact electrical equivalence to the LP2902D. These parts maintain identical slew rate (0.05 V/µs), gain bandwidth product (100 kHz), input bias current (2 nA), and output current capability (10 mA). All three are manufactured by Texas Instruments with Active product status and ROHS3 compliance.

LP2902DR: Preferred for high-volume automated assembly using Cut Tape & Digi-Reel® packaging.
LP2902M/NOPB: Suitable for manual assembly or lower-volume production using Tube packaging.
LP2902MX/NOPB: Optimal for automated reel-fed assembly processes using Tape & Reel packaging.

For Enhanced Performance Applications:

Select LM2902M/NOPB or LM2902MX/NOPB when the application can tolerate higher input bias current (45 nA vs. 2 nA) and supply current (1.5 mA vs. 85 µA per 4 channels) in exchange for superior bandwidth (1 MHz vs. 100 kHz) and output current (40 mA vs. 10 mA). Both maintain the -40°C to 85°C operating temperature range and ROHS3 compliance. These parts are Active status with LinCMOS™ series designation.

Select LM324AM/NOPB, LM324AMX/NOPB, LM324M/NOPB, or LM324MX/NOPB only when the application operates within the 0°C to 70°C temperature range. These parts offer identical enhanced performance to the LM2902 series but with restricted lower temperature limit. All are Active status with ROHS3 compliance.

Avoid:

LM2902DR (Rohm Semiconductor) carries Obsolete product status. While electrical performance exceeds the LP2902D, obsolete classification restricts availability and long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can LP2902DR directly replace LP2902D in existing designs?

A: Yes. LP2902DR is electrically and mechanically identical to LP2902D. The only difference is packaging format: LP2902DR uses Cut Tape & Digi-Reel® while LP2902D uses Tube. Both operate at 0.05 V/µs slew rate, 100 kHz bandwidth, 2 nA input bias, and 10 mA output current across -40°C to 85°C. Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between LP2902M/NOPB and LM2902M/NOPB?

A: Both are 4-circuit general-purpose operational amplifiers in 14-SOIC packaging from Texas Instruments. LP2902M/NOPB maintains the original LP2902 specifications: 0.05 V/µs slew rate, 100 kHz bandwidth, 2 nA input bias, 85 µA supply current, and 10 mA output current. LM2902M/NOPB is the LinCMOS™ variant with enhanced performance: 1 MHz bandwidth, 45 nA input bias, 1.5 mA supply current, and 40 mA output current. Both operate -40°C to 85°C and are ROHS3 compliant.

Q: Can LM324 series parts substitute for LP2902D?

A: LM324AM/NOPB, LM324AMX/NOPB, LM324M/NOPB, and LM324MX/NOPB are functionally compatible substitutes with enhanced performance specifications. However, they operate only within 0°C to 70°C temperature range, compared to LP2902D's -40°C to 85°C. Use LM324 variants only if your application does not require operation below 0°C or above 70°C. All maintain 14-SOIC packaging, 4-circuit configuration, and ROHS3 compliance.

Q: What packaging options are available for LP2902 equivalents?

A: Three packaging formats are available for direct LP2902D equivalents:

Tube: LP2902D (Last Time Buy), LP2902M/NOPB (Active)
Cut Tape & Digi-Reel®: LP2902DR (Active)
Tape & Reel (TR): LP2902MX/NOPB (Active)

All three formats contain identical components in 14-SOIC surface mount packages. Selection depends on assembly process requirements: manual assembly typically uses Tube, automated high-speed assembly uses Cut Tape & Digi-Reel® or Tape & Reel.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (LP2902DR, LP2902M/NOPB, LP2902MX/NOPB, LM2902M/NOPB, LM2902MX/NOPB, LM324AM/NOPB, LM324AMX/NOPB, LM324M/NOPB, LM324MX/NOPB) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. All carry REACH Unaffected status and EAR99 ECCN classification.

Q: Why is LM2902DR (Rohm Semiconductor) listed as a substitute if it is Obsolete?

A: LM2902DR is included for reference purposes only. While it exceeds LP2902D electrical specifications (0.3 V/µs slew rate, 1.2 MHz bandwidth, 20 nA input bias, 30 mA output current, -40°C to 125°C operation), its Obsolete product status makes it unsuitable for new designs. Existing inventory may be available, but long-term supply cannot be assured. Prefer Active status alternatives.

Q: What is the inventory status of substitute parts?

A: LP2902DR (3,770 pcs), LP2902M/NOPB (747 pcs), and LP2902MX/NOPB (2,700 pcs) are in stock. Enhanced performance alternatives include LM2902M/NOPB (2,640 pcs), LM2902MX/NOPB (1,499 pcs), LM324AM/NOPB (105,684 pcs), LM324AMX/NOPB (36,756 pcs), LM324M/NOPB (1,922 pcs), and LM324MX/NOPB (50,513 pcs). All are new original stock from authorized distributors.

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