TSV6191AILT Equivalent & Substitute Parts

Part Overview

The TSV6191AILT is a general-purpose operational amplifier manufactured by STMicroelectronics, housed in a SOT-23-5 surface mount package. This rail-to-rail output amplifier operates across a 1.5 V to 5.5 V supply range and is designed for low-power applications requiring single-circuit amplification. The device is active and in production with RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are necessary when the TSV6191AILT is unavailable, when alternative supply chain sources are required, or when design specifications permit operation with different electrical performance characteristics within the same package form factor.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Package / Case	SC-74A, SOT-753	—
Supplier Device Package	SOT-23-5	—
Mounting Type	Surface Mount	—
Voltage - Supply Span (Min)	1.5	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 85	°C
Slew Rate	0.08	V/µs
Gain Bandwidth Product	450	kHz
Current - Input Bias	1	pA
Voltage - Input Offset	800	µV
Current - Supply	10.5	µA
Current - Output / Channel	63	mA
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TSV6191AILT is determined by the following mandatory criteria:

Package Compatibility: All substitute parts must use the SOT-23-5 surface mount package (SC-74A, SOT-753 case designation) to ensure mechanical and electrical compatibility with existing PCB layouts.

Functional Requirements: All substitutes must be single-circuit, general-purpose operational amplifiers with rail-to-rail output capability.

Supply Voltage Range: Substitute parts must operate within or encompass the 1.5 V to 5.5 V supply range of the original device. Parts with extended ranges (such as 1.8 V to 6 V) are acceptable as they cover the original specification.

Electrical Performance: While the TSV6191AILT specifies 0.08 V/µs slew rate and 450 kHz gain bandwidth product, substitute parts with equal or superior performance in these parameters are functionally compatible. Input bias current, input offset voltage, supply current, and output current specifications may vary within acceptable engineering tolerances for general-purpose applications.

Compliance & Status: All substitute parts must maintain active product status and RoHS3 compliance with unlimited moisture sensitivity rating (MSL 1).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Slew Rate (V/µs)	Gain Bandwidth Product (kHz)	Current - Input Bias (pA/nA)	Voltage - Input Offset (µV/mV)	Current - Supply (µA)	Current - Output / Channel (mA)	Voltage - Supply Min (V)	Voltage - Supply Max (V)	Operating Temperature (°C)
TSV6191AILT	STMicroelectronics	0.08	450	1 pA	800 µV	10.5	63	1.5	5.5	-40 to 85
LMV321Q1M5/NOPB	Texas Instruments	1	1000	15 nA	1.7 mV	130	—	2.7	5.5	-40 to 125
LMV931SN3T1G	onsemi	0.48	1500	1 nA	1 mV	116	100	1.8	5.5	-40 to 125
MAX4400AUK+T	Analog Devices Inc./Maxim Integrated	1	800	0.1 pA	800 µV	410	—	2.5	5.5	-40 to 125
MCP6001UT-E/OT	Microchip Technology	0.6	1000	1 pA	4.5 mV	100	23	1.8	6	-40 to 125
MCP6001UT-I/OT	Microchip Technology	0.6	1000	1 pA	4.5 mV	100	23	1.8	6	-40 to 85
MCP6231UT-E/OT	Microchip Technology	0.15	300	1 pA	5 mV	20	23	1.8	6	-40 to 125
MCP6241UT-E/OT	Microchip Technology	0.3	550	1 pA	5 mV	50	23	1.8	5.5	-40 to 125
MCP6401UT-E/OT	Microchip Technology	0.5	1000	1 pA	4.5 mV	45	23	1.8	6	-40 to 125
MCP6L01UT-E/OT	Microchip Technology	0.6	1000	2 pA	1 mV	85	23	1.8	6	-40 to 125

Engineering Selection Recommendations

Direct Substitutes with Extended Temperature Range:

MCP6001UT-E/OT, MCP6401UT-E/OT, and MCP6L01UT-E/OT are functionally compatible with the TSV6191AILT across the original operating temperature range (-40°C to 85°C) and provide extended upper temperature capability to 125°C. These Microchip Technology devices maintain the same SOT-23-5 package, single-circuit configuration, and rail-to-rail output specification. All three are RoHS3 compliant with MSL 1 rating.

Substitutes with Enhanced Performance:

LMV931SN3T1G (onsemi) and MCP6241UT-E/OT (Microchip Technology) offer improved slew rate and gain bandwidth product compared to the TSV6191AILT while maintaining compatibility with the supply voltage range and package form factor. Both devices are active, RoHS3 compliant, and rated to -40°C to 125°C.

Substitutes with Reduced Power Consumption:

MCP6231UT-E/OT provides the lowest supply current (20 µA) among all substitutes, making it suitable for battery-powered or ultra-low-power applications where the TSV6191AILT's 10.5 µA consumption is acceptable. This device operates across the extended supply range (1.8 V to 6 V) and maintains RoHS3 compliance.

Automotive-Qualified Alternative:

LMV321Q1M5/NOPB (Texas Instruments) is AEC-Q100 qualified and suitable for automotive applications. This device provides extended operating temperature range (-40°C to 125°C) and is RoHS3 compliant, though it requires a minimum supply voltage of 2.7 V compared to the TSV6191AILT's 1.5 V minimum.

High-Performance Alternative:

MAX4400AUK+T (Analog Devices Inc./Maxim Integrated) offers the lowest input bias current (0.1 pA) and maintains the same input offset voltage (800 µV) as the TSV6191AILT. This device is active, RoHS3 compliant, and rated to -40°C to 125°C, though it requires a minimum supply voltage of 2.5 V.

All listed substitutes are currently in active production with confirmed inventory availability and maintain compliance with RoHS3 and REACH regulations.

Frequently Asked Questions (FAQ)

Q: Can MCP6001UT-I/OT be used as a direct replacement for TSV6191AILT?

A: MCP6001UT-I/OT is mechanically and electrically compatible with the TSV6191AILT in the SOT-23-5 package. Both are single-circuit, rail-to-rail operational amplifiers. The MCP6001UT-I/OT operates across -40°C to 85°C, matching the TSV6191AILT's temperature range, and supports the 1.8 V to 6 V supply range, which encompasses the original 1.5 V to 5.5 V specification. Electrical performance differences (slew rate, gain bandwidth product, input offset voltage) are within acceptable tolerances for general-purpose amplifier applications.

Q: What is the difference between MCP6001UT-E/OT and MCP6001UT-I/OT?

A: Both devices are identical in electrical performance and package form factor. The primary difference is operating temperature range: MCP6001UT-E/OT operates from -40°C to 125°C, while MCP6001UT-I/OT operates from -40°C to 85°C. For applications requiring extended temperature operation, MCP6001UT-E/OT is the appropriate selection.

Q: Is the LMV321Q1M5/NOPB suitable for low-voltage applications below 2.7 V?

A: No. The LMV321Q1M5/NOPB requires a minimum supply voltage of 2.7 V, whereas the TSV6191AILT operates down to 1.5 V. For applications requiring operation below 2.7 V, alternative substitutes such as MCP6001UT-E/OT, MCP6401UT-E/OT, or LMV931SN3T1G must be selected.

Q: Why does MCP6231UT-E/OT have lower supply current than the TSV6191AILT?

A: The MCP6231UT-E/OT is designed for ultra-low-power operation with a supply current of 20 µA compared to the TSV6191AILT's 10.5 µA. This lower current consumption is achieved through different circuit design and is suitable for battery-powered applications. The trade-off is reduced slew rate (0.15 V/µs versus 0.08 V/µs) and lower gain bandwidth product (300 kHz versus 450 kHz).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed in this reference maintain RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1), matching the environmental and regulatory status of the TSV6191AILT.

Q: Can MAX4400AUK+T replace TSV6191AILT in a 1.5 V supply application?

A: No. The MAX4400AUK+T requires a minimum supply voltage of 2.5 V and cannot operate at the TSV6191AILT's minimum specification of 1.5 V. For low-voltage applications, select from MCP6001UT-E/OT, MCP6401UT-E/OT, LMV931SN3T1G, or MCP6L01UT-E/OT.

Q: What is the significance of the SOT-23-5 package designation?

A: SOT-23-5 is the standardized surface mount package form factor used by all listed substitutes and the TSV6191AILT. This ensures mechanical compatibility with existing PCB layouts, solder reflow processes, and automated assembly equipment. The package contains five leads in a small outline transistor configuration suitable for space-constrained applications.

Q: Is LMV931SN3T1G available in the same packaging as TSV6191AILT?

A: Yes. The LMV931SN3T1G uses the SOT-23-5 Thin (TSOT-23-5) package designation, which is mechanically compatible with the SC-74A, SOT-753 case of the TSV6191AILT. Both packages accommodate the same PCB footprint and assembly processes.

Q: Which substitute offers the best performance improvement over TSV6191AILT?

A: LMV931SN3T1G provides the most significant performance improvement with 0.48 V/µs slew rate (6× faster) and 1.5 MHz gain bandwidth product (3.3× higher) compared to the TSV6191AILT's 0.08 V/µs and 450 kHz specifications. This device is suitable for applications requiring higher bandwidth and faster transient response while maintaining the same supply voltage range and package compatibility.

Q: Can substitute parts be mixed in the same design?

A: Yes. All substitute parts are functionally equivalent within their specified electrical and thermal operating ranges. However, design verification is necessary to confirm that the selected substitute meets the specific application requirements for slew rate, gain bandwidth product, input offset voltage, and supply current. PCB layout and component placement should remain consistent to minimize performance variation.

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