TSV6291AICT Equivalent & Substitute Parts

Part Overview

The TSV6291AICT is a general-purpose operational amplifier manufactured by STMicroelectronics, housed in a 5-TSSOP SC-70-5 surface mount package. This rail-to-rail output amplifier operates across a supply voltage range of 1.5 V to 5.5 V and is rated for temperatures from -40°C to 125°C. The device is currently in active product status with 1980 units in stock.

Substitute parts are necessary when the TSV6291AICT becomes unavailable, when alternative packaging formats are required, or when design specifications allow for components with comparable electrical characteristics. The substitute parts listed maintain functional equivalence through matching package geometry, pin configuration, and critical electrical parameters.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Package / Case	5-TSSOP, SC-70-5, SOT-353	—
Mounting Type	Surface Mount	—
Voltage - Supply Span (Min)	1.5	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 125	°C
Slew Rate	0.5	V/µs
Gain Bandwidth Product	1.3	MHz
Current - Input Bias	1	pA
Voltage - Input Offset	2	mV
Current - Supply	30	µA
Current - Output / Channel	74	mA
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TSV6291AICT is determined by strict adherence to the following electrical and mechanical parameters:

Package Compatibility: All substitute parts must use the 5-TSSOP SC-70-5 SOT-353 package with identical pin configuration and surface mount mounting type.

Functional Classification: All substitutes must be single-circuit, rail-to-rail output operational amplifiers classified as general-purpose amplifiers.

Supply Voltage Range: Substitute parts must operate within or encompass the 1.5 V to 5.5 V supply voltage range of the original part. Parts with minimum supply voltage requirements exceeding 1.5 V or maximum ratings below 5.5 V are acceptable only if the application operates within their specified range.

Operating Temperature Range: The TSV6291AICT operates from -40°C to 125°C. Substitute parts with narrower temperature ranges are acceptable if the application does not require the full extended range.

Electrical Performance: Slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current are secondary selection criteria. Substitutes may have different values for these parameters provided they do not degrade circuit performance in the intended application.

Compliance and Certification: All substitute parts must maintain ROHS3 compliance and REACH unaffected status to ensure regulatory equivalence.

Parameter Comparison

Parameter	TSV6291AICT (Main)	LMV301MG/NOPB	LMV301MGX/NOPB	LMV321IDCKR	LMV321IDCKT	LMV321M7/NOPB	LMV321M7X/NOPB	LMV611MG/NOPB	LMV611MGX/NOPB	LMV931MG	LMV931MG/NOPB
Manufacturer	STMicroelectronics	Texas Instruments	Texas Instruments	UMW	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Amplifier Type	General Purpose	General Purpose	General Purpose	Voltage Feedback	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
Number of Circuits	1	1	1	1	1	1	1	1	1	1	1
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Package / Case	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353	5-TSSOP, SC-70-5, SOT-353
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Voltage - Supply Span (Min)	1.5 V	1.8 V	1.8 V	2.1 V	2.7 V	2.7 V	2.7 V	1.8 V	1.8 V	1.8 V	1.8 V
Voltage - Supply Span (Max)	5.5 V	5 V	5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Operating Temperature (Min)	-40°C	-40°C	-40°C	-25°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C
Operating Temperature (Max)	125°C	85°C	85°C	85°C	125°C	85°C	85°C	125°C	125°C	125°C	125°C
Slew Rate	0.5 V/µs	0.66 V/µs	0.66 V/µs	—	1 V/µs	1 V/µs	1 V/µs	0.42 V/µs	0.42 V/µs	0.42 V/µs	0.42 V/µs
Gain Bandwidth Product	1.3 MHz	1 MHz	1 MHz	1 MHz	1 MHz	1 MHz	1 MHz	1.5 MHz	1.5 MHz	1.5 MHz	1.5 MHz
Current - Input Bias	1 pA	0.182 pA	0.182 pA	10 pA	15 nA	15 nA	15 nA	14 nA	14 nA	14 nA	14 nA
Voltage - Input Offset	2 mV	900 µV	900 µV	800 µV	1.7 mV	1.7 mV	1.7 mV	1 mV	1 mV	1 mV	1 mV
Current - Supply	30 µA	163 µA	163 µA	45 µA	130 µA	130 µA	130 µA	116 µA	116 µA	116 µA	116 µA
Current - Output / Channel	74 mA	108 mA	108 mA	25 mA	—	160 mA	—	100 mA	100 mA	100 mA	100 mA
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Last Time Buy	Active

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

LMV611MG/NOPB, LMV611MGX/NOPB, LMV931MG/NOPB, and LMV931MG are the most suitable substitutes. These parts maintain the full operating temperature range of -40°C to 125°C, matching the TSV6291AICT specification. All are ROHS3 compliant with MSL 1 rating (except LMV931MG which is Last Time Buy status). These devices support the full 1.8 V to 5.5 V supply range and provide higher gain bandwidth product (1.5 MHz) and comparable output current capability.

Secondary Substitutes (Conditional Compatibility):

LMV301MG/NOPB and LMV301MGX/NOPB are suitable for applications that do not require operation above 85°C. Both maintain ROHS3 compliance and MSL 1 rating with higher slew rate (0.66 V/µs) and superior output current (108 mA). Supply voltage range is 1.8 V to 5 V, which is acceptable for most 3.3 V and 5 V systems.

LMV321IDCKT and LMV321M7/NOPB support the full -40°C to 125°C temperature range with higher slew rate (1 V/µs) and superior output current capability (160 mA for LMV321M7/NOPB). Minimum supply voltage is 2.7 V, restricting use in ultra-low voltage applications below 2.7 V.

Limited Substitutes:

LMV321IDCKR (UMW manufacturer) operates only to 85°C maximum and has minimum supply voltage of 2.1 V. This part is suitable only for applications with restricted temperature and voltage requirements. MSL 1 rating and ROHS3 compliance are maintained.

Avoid for Direct Substitution:

LMV931MG carries Last Time Buy status, indicating discontinued product line. While electrically compatible, this part should not be selected for new designs or long-term production requirements.

Frequently Asked Questions (FAQ)

Q: Can I use LMV301MG/NOPB in place of TSV6291AICT in all applications?

A: LMV301MG/NOPB is compatible for applications operating at temperatures up to 85°C. If your circuit requires operation at temperatures between 85°C and 125°C, this substitute is not suitable. The supply voltage range (1.8 V to 5 V) is narrower than the original part (1.5 V to 5.5 V), so verify your application does not require operation below 1.8 V or above 5 V.

Q: What is the difference between LMV611MG/NOPB and LMV611MGX/NOPB?

A: Both parts are electrically identical with matching specifications. The primary difference is packaging format: LMV611MG/NOPB is supplied in Cut Tape (CT) & Digi-Reel format, while LMV611MGX/NOPB is supplied in Tape & Reel (TR) format. Select based on your procurement and assembly requirements.

Q: Are all substitute parts pin-compatible with TSV6291AICT?

A: Yes. All listed substitute parts use the identical 5-TSSOP SC-70-5 SOT-353 package with the same pin configuration. Direct PCB footprint compatibility is guaranteed.

Q: Why do some substitutes have different supply current specifications?

A: Supply current variation reflects differences in internal circuit design and bias network architecture between manufacturers. The TSV6291AICT draws 30 µA, while substitutes range from 45 µA to 163 µA. Select based on your power budget requirements. Lower supply current is advantageous for battery-powered applications.

Q: Can I use LMV321IDCKR in a design requiring -40°C operation?

A: No. LMV321IDCKR operates only from -25°C to 85°C. For applications requiring -40°C minimum temperature, select LMV321IDCKT, LMV321M7/NOPB, LMV321M7X/NOPB, LMV611MG/NOPB, LMV611MGX/NOPB, LMV931MG, or LMV931MG/NOPB.

Q: What does MSL 1 (Unlimited) mean compared to MSL 2 (1 Year)?

A: MSL 1 indicates unlimited shelf life under controlled storage conditions. MSL 2 (1 Year) means the component must be used within one year of manufacture if stored in standard conditions. LMV321IDCKT carries MSL 2 rating; all other substitutes carry MSL 1. For long-term inventory, MSL 1 parts are preferred.

Q: Is LMV931MG still available for new designs?

A: LMV931MG carries Last Time Buy status, indicating the product line is discontinued. While currently in stock (8921 units), this part should not be selected for new designs or applications requiring long-term supply continuity. Use LMV931MG/NOPB (Active status) or alternative substitutes instead.

Q: Which substitute offers the lowest power consumption?

A: LMV321IDCKR has the lowest supply current at 45 µA. However, this part is limited to -25°C to 85°C operation. For applications requiring full -40°C to 125°C range with low power consumption, LMV611MG/NOPB and LMV611MGX/NOPB draw 116 µA, which is lower than most alternatives while maintaining extended temperature range.

Q: Can I substitute TSV6291AICT with LMV321IDCKT in a 1.5 V supply application?

A: No. LMV321IDCKT requires minimum 2.7 V supply voltage. For 1.5 V operation, use LMV611MG/NOPB, LMV611MGX/NOPB, LMV931MG, LMV931MG/NOPB, or LMV301MG/NOPB (minimum 1.8 V).

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