LP2902PW Equivalent & Substitute Parts

Part Overview

The LP2902PW is a general-purpose operational amplifier manufactured by Texas Instruments, packaged in 14-TSSOP surface mount configuration. This device integrates four independent amplifier circuits in a single integrated circuit, designed for low-power applications requiring moderate bandwidth performance. The LP2902PW is classified as Last Time Buy, indicating discontinued production status. Identification of equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

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
Package / Case	14-TSSOP (0.173", 4.40mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the LP2902PW are classified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is determined by the following parameters:

Critical Compatibility Parameters:

Number of Circuits: 4 (all substitutes must provide four independent amplifier channels)
Package / Case: 14-TSSOP surface mount configuration (0.173", 4.40mm Width)
Voltage - Supply Span: 3 V minimum to 32 V maximum (or higher maximum rating)
Operating Temperature Range: Must support -40°C to 85°C minimum
Mounting Type: Surface Mount

Performance Parameters (Secondary Criteria):

Slew Rate: 0.05 V/µs or higher
Gain Bandwidth Product: 100 kHz or higher
Current - Input Bias: 2 nA or lower (lower values indicate better performance)
Voltage - Input Offset: 2 mV or lower
Current - Supply: 85 µA or lower per channel set (lower values preferred for power-sensitive applications)
Current - Output / Channel: 10 mA or higher

Substitutes are grouped into two categories:

Category A - Direct Packaging Equivalents (14-TSSOP): Parts maintaining identical 14-TSSOP packaging with matching or superior electrical specifications. These include LP2902PWR, LM2902MT/NOPB, LM2902MTX/NOPB, LM324MT/NOPB, LM324MTX/NOPB, LP324MT/NOPB, and LP324MTX/NOPB.

Category B - Alternative Package Equivalents (14-SSOP-B): Parts with functionally equivalent four-circuit amplifier configuration in alternative surface mount packages (14-LSSOP). These include BA10324AFV-E2 and BA2902FV-E2, which provide electrical performance suitable for LP2902PW applications with minor package footprint variations.

Parameter Comparison

Part Number	Manufacturer	Slew Rate (V/µs)	GBW (kHz)	Input Bias (nA)	Supply Current (µA)	Output Current (mA)	Temp Range (°C)	Package	Status
LP2902PW	Texas Instruments	0.05	100	2	85	10	-40 to 85	14-TSSOP	Last Time Buy
LP2902PWR	Texas Instruments	0.05	100	2	85	10	-40 to 85	14-TSSOP	Active
LM2902MT/NOPB	Texas Instruments	—	1000	45	1500	40	-40 to 85	14-TSSOP	Active
LM2902MTX/NOPB	Texas Instruments	—	1000	45	1500	40	-40 to 85	14-TSSOP	Active
LM324MT/NOPB	Texas Instruments	—	1000	45	1500	40	0 to 70	14-TSSOP	Active
LM324MTX/NOPB	Texas Instruments	—	1000	45	1500	40	0 to 70	14-TSSOP	Active
LP324MT/NOPB	Texas Instruments	0.05	100	2	85	10	0 to 70	14-TSSOP	Active
LP324MTX/NOPB	Texas Instruments	0.05	100	2	85	10	0 to 70	14-TSSOP	Active
AS324GTR-G1	Diodes Incorporated	—	—	20	1000	40	-40 to 85	14-TSSOP	Active
BA10324AFV-E2	Rohm Semiconductor	0.2	500	20	600	35	-40 to 85	14-LSSOP	Active
BA2902FV-E2	Rohm Semiconductor	0.2	500	20	700	30	-40 to 125	14-LSSOP	Active

Engineering Selection Recommendations

Primary Recommendation - Identical Electrical Performance:

LP2902PWR is the direct active-status equivalent to LP2902PW. Both parts share identical electrical specifications (0.05 V/µs slew rate, 100 kHz gain bandwidth product, 2 nA input bias current, 85 µA supply current) and 14-TSSOP packaging. The only difference is packaging format: LP2902PW is supplied in Tube, while LP2902PWR is supplied in Tape & Reel (TR). Both maintain ROHS3 compliance, MSL 1 rating, and support the full -40°C to 85°C operating temperature range. This substitution requires no circuit redesign.

Secondary Recommendations - Enhanced Performance:

LM2902MT/NOPB and LM2902MTX/NOPB provide superior performance characteristics while maintaining 14-TSSOP packaging and -40°C to 85°C temperature range. These parts feature 1 MHz gain bandwidth product (10× higher than LP2902PW), 40 mA output current per channel (4× higher), and 1.5 mA total supply current. Input bias current increases to 45 nA. These substitutes are suitable for applications requiring higher bandwidth and output drive capability. LM2902MT/NOPB is supplied in Tube; LM2902MTX/NOPB is supplied in Tape & Reel.

Temperature-Constrained Applications:

LP324MT/NOPB and LP324MTX/NOPB maintain identical electrical specifications to LP2902PW (0.05 V/µs slew rate, 100 kHz bandwidth, 2 nA input bias, 85 µA supply current) but operate over 0°C to 70°C temperature range. These parts are suitable only for applications not requiring the full -40°C to 85°C range. LP324MT/NOPB is supplied in Tube; LP324MTX/NOPB is supplied in Tape & Reel.

Extended Temperature Range:

BA2902FV-E2 (Rohm Semiconductor) extends operating temperature to -40°C to 125°C while maintaining 14-LSSOP package compatibility. This part features 0.2 V/µs slew rate, 500 kHz bandwidth, and 700 µA supply current. The alternative package footprint (14-LSSOP versus 14-TSSOP) requires PCB layout verification but provides superior high-temperature performance.

Multi-Manufacturer Sourcing:

AS324GTR-G1 (Diodes Incorporated) provides four-circuit amplifier in 14-TSSOP packaging with -40°C to 85°C temperature range and 1 mA supply current. This part supports supply voltages up to 36 V (versus 32 V maximum for LP2902PW) and is suitable for applications requiring multi-source component availability.

Product Status Compliance:

All recommended substitutes maintain Active product status, ensuring long-term availability and manufacturing support. All parts are ROHS3 compliant and carry MSL 1 or MSL 3 ratings suitable for standard surface mount assembly processes.

Frequently Asked Questions (FAQ)

Q1: Can LP2902PWR directly replace LP2902PW without circuit modification?

A: Yes. LP2902PWR is electrically and functionally identical to LP2902PW. Both parts feature 0.05 V/µs slew rate, 100 kHz gain bandwidth product, 2 nA input bias current, and 85 µA supply current. The only difference is packaging format (Tube versus Tape & Reel). No circuit redesign is required. Both parts are rated for -40°C to 85°C operation and maintain ROHS3 compliance.

Q2: What is the difference between 14-TSSOP and 14-LSSOP packages?

A: Both are surface mount packages with 14 pins and 0.173" width (4.40mm). The primary difference is in lead configuration and footprint geometry. BA10324AFV-E2 and BA2902FV-E2 use 14-LSSOP (Leadless Small Outline Package), while LP2902PW and most Texas Instruments alternatives use 14-TSSOP (Thin Shrink Small Outline Package). PCB layout and reflow profile may require adjustment when switching between these packages. Consult component datasheets for specific footprint dimensions.

Q3: Why do LM2902 and LM324 parts show higher supply current than LP2902PW?

A: LM2902 and LM324 series are LinCMOS™ technology variants featuring higher gain bandwidth product (1 MHz versus 100 kHz) and higher output current capability (40 mA versus 10 mA per channel). These performance enhancements require higher quiescent current consumption (1.5 mA versus 85 µA). Select LM2902/LM324 variants only when application requirements demand higher bandwidth or output drive capability.

Q4: Can I use LM324MT/NOPB or LM324MTX/NOPB in place of LP2902PW?

A: LM324 parts are electrically compatible but operate over 0°C to 70°C temperature range, not the full -40°C to 85°C range of LP2902PW. Use LM324 variants only if your application operates within 0°C to 70°C limits. For full -40°C to 85°C operation, use LP2902PWR, LM2902MT/NOPB, or LM2902MTX/NOPB instead.

Q5: What are the advantages of BA2902FV-E2 over LP2902PW?

A: BA2902FV-E2 extends operating temperature to -40°C to 125°C (versus -40°C to 85°C for LP2902PW), providing superior high-temperature performance. It features 0.2 V/µs slew rate and 500 kHz bandwidth (versus 0.05 V/µs and 100 kHz for LP2902PW). The trade-off is higher supply current (700 µA versus 85 µA) and alternative 14-LSSOP package requiring PCB layout verification. Select BA2902FV-E2 only when extended temperature range is required.

Q6: Is AS324GTR-G1 suitable for 32 V supply applications?

A: AS324GTR-G1 supports supply voltages up to 36 V maximum, exceeding the 32 V maximum of LP2902PW. This part is suitable for applications requiring higher supply voltage headroom. However, verify input bias current specification (20 nA for AS324GTR-G1 versus 2 nA for LP2902PW) is acceptable for your circuit design, as higher input bias current may affect precision analog circuits.

Q7: What packaging options are available for LP2902 substitutes?

A: Texas Instruments offers LP2902PWR in Tape & Reel (TR) format as the direct active equivalent. LM2902MT/NOPB is supplied in Tube; LM2902MTX/NOPB is supplied in Tape & Reel. LP324MT/NOPB is supplied in Tube; LP324MTX/NOPB is supplied in Tape & Reel. Rohm Semiconductor BA10324AFV-E2 and BA2902FV-E2 are supplied in Cut Tape (CT) & Digi-Reel® format. Select packaging based on assembly process requirements and volume needs.

Q8: Are all substitute parts ROHS3 compliant?

A: Yes. All recommended substitute parts (LP2902PWR, LM2902MT/NOPB, LM2902MTX/NOPB, LM324MT/NOPB, LM324MTX/NOPB, LP324MT/NOPB, LP324MTX/NOPB, AS324GTR-G1, BA10324AFV-E2, BA2902FV-E2) are ROHS3 compliant. All parts carry MSL 1 or MSL 3 moisture sensitivity ratings suitable for standard surface mount assembly processes.

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