TSH80ILT Equivalent & Substitute Parts

Part Overview

The TSH80ILT is a general-purpose operational amplifier manufactured by STMicroelectronics, housed in a SOT-23-5 surface mount package. This device features rail-to-rail output capability and is designed for linear amplification applications requiring single-circuit configurations. The TSH80ILT is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Slew Rate	118	V/µs
Gain Bandwidth Product	65	MHz
-3dB Bandwidth	100	MHz
Current - Input Bias	6	µA
Voltage - Input Offset	800	µV
Current - Supply	9.8	mA
Current - Output / Channel	55	mA
Voltage - Supply Span (Min)	4.5	V
Voltage - Supply Span (Max)	12	V
Operating Temperature	-40 to 85	°C
Package / Case	SC-74A, SOT-753	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TSH80ILT is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

Output Type: Rail-to-Rail configuration
Number of Circuits: Single circuit (1)
Package / Case: SC-74A, SOT-753 (SOT-23-5 footprint)
Mounting Type: Surface Mount
Supply Voltage Range: Minimum 4.5 V to Maximum 12 V overlap
Operating Temperature Range: Minimum -40°C to Maximum 85°C overlap

Substitution Categories:

Parametric Equivalent: TSH80IYLT represents a direct parametric equivalent with identical electrical specifications. This part maintains all key performance characteristics while offering active product status and automotive qualification.

Similar Substitutes: Parts including AD8051ARTZ-REEL, AD8051ARTZ-REEL7, AD8091ARTZ-R7, AD8519ARTZ-REEL7, LMH6642MF/NOPB, and LMH6642MFX/NOPB share the same physical package and rail-to-rail output configuration. These devices operate within compatible supply voltage ranges and temperature specifications, though individual electrical parameters vary based on amplifier topology (voltage feedback versus general purpose).

Secondary Consideration: LT1803IS5#TRM is included as a general-purpose rail-to-rail amplifier in SOT-23-5 packaging with overlapping electrical performance characteristics.

Parameter Comparison

Parameter	TSH80ILT	TSH80IYLT	AD8051ARTZ-REEL	AD8051ARTZ-REEL7	AD8091ARTZ-R7	AD8519ARTZ-REEL7	LMH6642MF/NOPB	LMH6642MFX/NOPB	LT1803IS5#TRM
Amplifier Type	General Purpose	General Purpose	Voltage Feedback	Voltage Feedback	Voltage Feedback	General Purpose	Voltage Feedback	Voltage Feedback	General Purpose
Number of Circuits	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
Slew Rate (V/µs)	118	118	170	170	170	2.9	135	135	88
Gain Bandwidth Product (MHz)	65	65	—	—	—	8	—	—	83
-3dB Bandwidth (MHz)	100	100	110	110	110	—	130	130	—
Current - Input Bias (µA)	6	6	1.4	1.4	1.4	0.3	1.6	1.6	2.5
Voltage - Input Offset (mV)	0.8	0.8	1.8	1.8	1.8	0.6	1	1	1.5
Current - Supply (mA)	9.8	9.8	4.8	4.8	4.8	0.6	2.7	2.7	2.5
Current - Output / Channel (mA)	55	55	45	45	45	25	75	75	50
Voltage - Supply Span Min (V)	4.5	4.5	3	3	3	2.7	2.7	2.7	2.3
Voltage - Supply Span Max (V)	12	12	12	12	12	12	12.8	12.8	12.6
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 125	-40 to 125	-40 to 85	-40 to 125	-40 to 85	-40 to 85	-40 to 85
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SOT-23-5 Thin, TSOT-23-5
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: TSH80IYLT

The TSH80IYLT is the optimal direct replacement for the obsolete TSH80ILT. This part maintains identical electrical specifications across all critical parameters including slew rate, gain bandwidth product, input bias current, and supply voltage range. The TSH80IYLT carries active product status, ensuring long-term availability and supply chain continuity. This device includes automotive qualification (AEC-Q100) and is supplied in Tape & Reel packaging, supporting high-volume production requirements. Both parts are ROHS3 compliant and REACH unaffected.

Secondary Recommendations: Voltage Feedback Amplifiers

The AD8051ARTZ-REEL, AD8051ARTZ-REEL7, and LMH6642MF/NOPB series represent alternative substitutes for applications where voltage feedback topology is acceptable. These devices offer enhanced slew rates (170 V/µs and 135 V/µs respectively) and higher bandwidth performance (-3dB bandwidth of 110 MHz to 130 MHz). The AD8051 variants support extended operating temperatures to 125°C. The LMH6642 series provides superior output current capability (75 mA) and lower supply current consumption (2.7 mA). All three alternatives maintain rail-to-rail output and SOT-23-5 packaging compatibility.

Alternative Recommendation: AD8091ARTZ-R7

The AD8091ARTZ-R7 offers voltage feedback topology with performance characteristics similar to the AD8051 series. This device maintains the -40°C to 85°C operating temperature range matching the original TSH80ILT specification and carries active product status with ROHS3 compliance.

Low-Power Alternative: AD8519ARTZ-REEL7

The AD8519ARTZ-REEL7 is a general-purpose amplifier suitable for power-constrained applications, featuring significantly reduced supply current (0.6 mA) and lower slew rate (2.9 V/µs). This device supports extended operating temperatures to 125°C and operates across a wider minimum supply voltage range (2.7 V). Selection of this part requires confirmation that reduced bandwidth (8 MHz gain bandwidth product) and slew rate are compatible with application requirements.

Secondary Alternative: LT1803IS5#TRM

The LT1803IS5#TRM is a general-purpose rail-to-rail amplifier with performance characteristics closely aligned to the TSH80ILT. This device offers comparable slew rate (88 V/µs) and gain bandwidth product (83 MHz), with lower supply current consumption (2.5 mA). The LT1803IS5#TRM is supplied in TSOT-23-5 thin packaging, which maintains mechanical compatibility with standard SOT-23-5 footprints.

Frequently Asked Questions (FAQ)

Q: Can TSH80IYLT be used as a direct replacement for TSH80ILT?

A: Yes. The TSH80IYLT is a parametric equivalent with identical electrical specifications. Both devices feature 118 V/µs slew rate, 65 MHz gain bandwidth product, 100 MHz -3dB bandwidth, and identical supply voltage range (4.5 V to 12 V). The primary difference is product status: TSH80IYLT is active while TSH80ILT is obsolete. Both are ROHS3 compliant and housed in SC-74A, SOT-753 packaging.

Q: What is the difference between general-purpose and voltage feedback amplifier topologies?

A: General-purpose amplifiers (TSH80ILT, TSH80IYLT, AD8519ARTZ-REEL7, LT1803IS5#TRM) are optimized for broad application flexibility with moderate performance across multiple parameters. Voltage feedback amplifiers (AD8051ARTZ-REEL, AD8051ARTZ-REEL7, AD8091ARTZ-R7, LMH6642MF/NOPB, LMH6642MFX/NOPB) prioritize high-speed performance with enhanced slew rates and bandwidth. Selection depends on application-specific bandwidth and transient response requirements.

Q: Are all substitute parts compatible with the same PCB footprint?

A: All listed substitutes except LT1803IS5#TRM use standard SOT-23-5 packaging (SC-74A, SOT-753). The LT1803IS5#TRM uses TSOT-23-5 thin packaging, which maintains mechanical compatibility with standard SOT-23-5 footprints on PCBs designed for either variant. Verify PCB design specifications for thin package clearance if using LT1803IS5#TRM.

Q: Which substitute offers the lowest power consumption?

A: The AD8519ARTZ-REEL7 provides the lowest supply current at 0.6 mA, compared to 9.8 mA for the TSH80ILT. However, this device features significantly reduced bandwidth (8 MHz gain bandwidth product) and slew rate (2.9 V/µs). Selection requires confirmation that reduced performance parameters are acceptable for the intended application.

Q: What is the maximum operating temperature for each substitute?

A: TSH80ILT and TSH80IYLT operate to 85°C. AD8051ARTZ-REEL, AD8051ARTZ-REEL7, and AD8519ARTZ-REEL7 operate to 125°C. AD8091ARTZ-R7 and LMH6642MF/NOPB operate to 85°C. LT1803IS5#TRM operates to 85°C. Applications requiring extended temperature operation should select devices rated to 125°C.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification. The TSH80ILT original part is also ROHS3 compliant.

Q: Which substitute provides the highest output current capability?

A: The LMH6642MF/NOPB and LMH6642MFX/NOPB provide the highest output current per channel at 75 mA, compared to 55 mA for the TSH80ILT. The AD8051 variants provide 45 mA, while the AD8519ARTZ-REEL7 provides 25 mA.

Q: Can I use AD8051ARTZ-REEL in applications requiring the exact TSH80ILT specifications?

A: The AD8051ARTZ-REEL shares the same package and rail-to-rail output configuration but differs in amplifier topology and several electrical parameters. Input bias current is lower (1.4 µA versus 6 µA), slew rate is higher (170 V/µs versus 118 V/µs), and operating temperature extends to 125°C. Applications sensitive to input bias current, slew rate, or requiring the specific general-purpose topology should use TSH80IYLT instead.

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