TLV2422AIPWR Equivalent & Substitute Parts

Part Overview

The TLV2422AIPWR is a general-purpose operational amplifier manufactured by Texas Instruments, featuring dual circuits in an 8-TSSOP surface-mount package. This device is classified as a Last Time Buy product, indicating discontinued production with limited inventory availability. The TLV2422AIPWR operates as a rail-to-rail output amplifier within the LinCMOS™ series, designed for low-power applications requiring dual-channel amplification in compact form factors.

Identifying equivalent and substitute parts is necessary due to the Last Time Buy status, which restricts long-term procurement availability. Alternative components with compatible electrical and mechanical specifications enable design continuity and supply chain flexibility.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	TLV2422AIPWR	—
Manufacturer	Texas Instruments	—
Category	Linear, Amplifiers	—
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Package / Case	8-TSSOP (0.173", 4.40mm Width)	—
Mounting Type	Surface Mount	—
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	10	V
Operating Temperature	-40 to 85	°C
Slew Rate	0.02	V/µs
Gain Bandwidth Product	5.3	MHz
Current - Supply	100	µA (x2 Channels)
Current - Output / Channel	50	mA
Current - Input Bias	1	pA
Voltage - Input Offset	300	µV
Product Status	Last Time Buy	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the TLV2422AIPWR is determined by the following critical parameters:

Primary Compatibility Criteria:

Dual-circuit configuration (2 circuits required)
General-purpose amplifier type
Rail-to-rail output capability
Surface-mount packaging
Supply voltage range overlap: minimum 2.7 V, maximum ≥10 V
Operating temperature range: -40°C to 85°C minimum

Secondary Compatibility Criteria:

Package form factor: 8-TSSOP preferred for direct PCB layout compatibility
Output current capability: ≥50 mA per channel
Input bias current: ≤1 pA preferred for low-leakage applications
Slew rate and gain-bandwidth product: application-dependent performance metrics

The substitute parts listed below meet the primary compatibility criteria and are classified into two groups based on package type and performance characteristics.

Parameter Comparison

Parameter	TLV2422AIPWR	TS922IPT	TS922IYPT	AD8529ARMZ-REEL	OP279GRUZ-REEL	OPA2244UA/2K5
Manufacturer	Texas Instruments	STMicroelectronics	STMicroelectronics	Analog Devices Inc.	Analog Devices Inc.	Texas Instruments
Number of Circuits	2	2	2	2	2	2
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	Buffer	General Purpose
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	—
Package / Case	8-TSSOP	8-TSSOP	8-TSSOP	8-MSOP	8-TSSOP	8-SOIC
Voltage - Supply Span (Min)	2.7 V	2.7 V	2.7 V	2.7 V	4.5 V	2.2 V
Voltage - Supply Span (Max)	10 V	12 V	12 V	12 V	12 V	36 V
Operating Temperature	-40 to 85°C	-40 to 125°C	-40 to 125°C	-40 to 125°C	-40 to 85°C	-40 to 85°C
Slew Rate	0.02 V/µs	1.3 V/µs	1.3 V/µs	2.9 V/µs	3 V/µs	0.1 V/µs
Gain Bandwidth Product	5.3 MHz	4 MHz	4 MHz	8 MHz	5 MHz	430 kHz
Current - Supply	100 µA (x2)	2 mA	2 mA	600 µA (x2)	—	40 µA (x2)
Current - Output / Channel	50 mA	80 mA	80 mA	25 mA	50 mA	25 mA
Current - Input Bias	1 pA	15 nA	15 nA	300 nA	300 nA	10 nA
Voltage - Input Offset	300 µV	3 mV	3 mV	600 µV	4 mV	700 µV
Product Status	Last Time Buy	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)

Engineering Selection Recommendations

Direct Package Compatibility (8-TSSOP):

The TS922IPT and TS922IYPT are STMicroelectronics general-purpose amplifiers in 8-TSSOP packaging, providing direct mechanical and electrical compatibility with the TLV2422AIPWR. Both devices feature rail-to-rail output, dual circuits, and overlapping supply voltage ranges (2.7 V to 12 V). These parts are qualified to AEC-Q100 automotive standards and carry Active product status with unlimited MSL rating. The extended operating temperature range (-40°C to 125°C) exceeds the TLV2422AIPWR specification. Higher slew rate (1.3 V/µs) and increased output current per channel (80 mA) provide enhanced performance margins. Supply current is elevated at 2 mA compared to 100 µA for the original part.

Alternative Package Options:

The AD8529ARMZ-REEL (Analog Devices Inc., 8-MSOP package) maintains rail-to-rail output and dual-circuit configuration with Active product status and unlimited MSL. This device offers superior slew rate (2.9 V/µs) and gain-bandwidth product (8 MHz), with extended temperature range to 125°C. The 8-MSOP package requires PCB layout modification. Output current per channel is reduced to 25 mA, which may limit applications requiring higher drive capability.

The OP279GRUZ-REEL (Analog Devices Inc., 8-TSSOP package) is classified as a buffer amplifier rather than general-purpose, with minimum supply voltage of 4.5 V. This restriction eliminates compatibility with applications requiring 2.7 V operation. The device maintains 50 mA output current per channel and 8-TSSOP packaging.

The OPA2244UA/2K5 (Texas Instruments, 8-SOIC package) is a general-purpose amplifier with Active product status but lacks specified rail-to-rail output capability. The 8-SOIC package requires PCB redesign. MSL rating of 3 (168 hours) imposes moisture handling constraints. Supply voltage range extends to 36 V maximum, providing broader compatibility. Output current per channel is limited to 25 mA.

Recommended Selection Criteria:

For direct replacement without PCB modification, select TS922IPT or TS922IYPT. For applications requiring extended temperature operation beyond 85°C, select AD8529ARMZ-REEL or TS922 variants. For low-power applications where 100 µA supply current is critical, OPA2244UA/2K5 offers reduced consumption at 40 µA per dual-channel configuration, though package change is required.

Frequently Asked Questions (FAQ)

Q1: Can TS922IPT and TS922IYPT be used interchangeably with TLV2422AIPWR without PCB modification?

A: Yes. Both TS922IPT and TS922IYPT feature identical 8-TSSOP packaging (0.173", 4.40mm width) as the TLV2422AIPWR, enabling direct pin-compatible substitution. Electrical parameters including supply voltage range (2.7 V to 12 V), dual-circuit configuration, and rail-to-rail output meet or exceed the original specification. No PCB layout changes are required.

Q2: What is the primary difference between TS922IPT and TS922IYPT?

A: Both devices are manufactured by STMicroelectronics with identical electrical specifications and 8-TSSOP packaging. The distinction lies in inventory availability and packaging format. TS922IPT inventory is 582,855 pieces, while TS922IYPT inventory is 33,316 pieces. Both carry Active product status and AEC-Q100 automotive qualification.

Q3: Why does AD8529ARMZ-REEL use 8-MSOP packaging instead of 8-TSSOP?

A: The AD8529ARMZ-REEL is manufactured by Analog Devices Inc. in 8-MSOP package format (0.118", 3.00mm width), which differs from the 8-TSSOP footprint. While both are 8-pin surface-mount packages, the pin pitch and body dimensions are incompatible. PCB layout modification is required for substitution. The 8-MSOP format provides a smaller footprint suitable for space-constrained applications.

Q4: Is OP279GRUZ-REEL suitable as a substitute for the TLV2422AIPWR?

A: OP279GRUZ-REEL is classified as a buffer amplifier, not a general-purpose amplifier. While it maintains 8-TSSOP packaging and rail-to-rail output, the minimum supply voltage is 4.5 V, restricting use in applications requiring 2.7 V operation. Functional differences between buffer and general-purpose amplifier topologies may affect circuit performance. Substitution is not recommended for general-purpose amplifier applications.

Q5: What are the supply current implications when substituting with TS922 variants?

A: The TLV2422AIPWR draws 100 µA total supply current (50 µA per channel). TS922IPT and TS922IYPT draw 2 mA total supply current, representing a 20-fold increase. For battery-powered or ultra-low-power applications, this elevated consumption may be unacceptable. Thermal dissipation and power budget analysis is required before substitution in power-sensitive designs.

Q6: Can OPA2244UA/2K5 replace TLV2422AIPWR in all applications?

A: OPA2244UA/2K5 is a general-purpose dual-circuit amplifier with Active product status and ROHS3 compliance. However, three factors limit substitution: (1) 8-SOIC packaging requires PCB redesign; (2) rail-to-rail output is not specified; (3) MSL rating of 3 (168 hours) imposes moisture handling constraints compared to MSL 1 (unlimited) for the original part. Substitution is feasible only when PCB modification is acceptable and moisture sensitivity is manageable.

Q7: What is the significance of "Last Time Buy" status for TLV2422AIPWR?

A: Last Time Buy status indicates that Texas Instruments has discontinued production and will not accept new orders after a specified date. Existing inventory (7,800 pieces) represents the final available supply. Designers must transition to alternative components for new designs or long-term production. All substitute parts listed carry Active product status, ensuring continued availability and manufacturing support.

Q8: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (TS922IPT, TS922IYPT, AD8529ARMZ-REEL, OP279GRUZ-REEL, OPA2244UA/2K5) are ROHS3 compliant and REACH unaffected, matching the environmental compliance profile of the TLV2422AIPWR.

Q9: Which substitute offers the best performance for high-speed applications?

A: AD8529ARMZ-REEL provides the highest slew rate (2.9 V/µs) and gain-bandwidth product (8 MHz) among the listed substitutes. OP279GRUZ-REEL offers comparable slew rate (3 V/µs) but is classified as a buffer amplifier. For general-purpose high-speed applications, AD8529ARMZ-REEL is the optimal choice, contingent on PCB layout modification capability.

Q10: What packaging considerations apply when selecting a substitute?

A: Three package types are represented: 8-TSSOP (TLV2422AIPWR, TS922IPT, TS922IYPT, OP279GRUZ-REEL), 8-MSOP (AD8529ARMZ-REEL), and 8-SOIC (OPA2244UA/2K5). Direct substitution without PCB modification requires 8-TSSOP packaging. Alternative packages necessitate PCB redesign, including trace routing, via placement, and thermal management adjustments. Package selection impacts assembly cost, lead time, and design validation requirements.

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