TLV271CDBVTG4 Equivalent & Substitute Parts

Part Overview

The TLV271CDBVTG4 is a CMOS single-circuit operational amplifier manufactured by Texas Instruments, packaged in SOT-23-5 (SC-74A) surface mount configuration. This device features rail-to-rail output capability and is designed for low-power analog signal processing applications. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional and electrical compatibility for ongoing production and maintenance requirements.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Slew Rate	2.6	V/µs
Gain Bandwidth Product	3	MHz
Current - Input Bias	1	pA
Voltage - Input Offset	500	µV
Current - Supply	625	µA
Current - Output / Channel	8	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	16	V
Operating Temperature	0 to 70	°C
Mounting Type	Surface Mount	—
Package / Case	SC-74A, SOT-753	—
Supplier Device Package	SOT-23-5	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—
REACH Status	REACH Unaffected	—

Substitute Part Grouping Explanation

Substitution of the TLV271CDBVTG4 is determined by the following critical parameters:

Primary Compatibility Criteria:

Amplifier Type: CMOS technology
Number of Circuits: Single circuit configuration
Output Type: Rail-to-Rail capability
Package Type: SOT-23-5 or SOT-25 surface mount
Supply Voltage Range: Minimum 2.7 V, Maximum 16 V
Mounting Type: Surface Mount

Secondary Performance Parameters:

Slew Rate: 2.6 V/µs (reference specification)
Gain Bandwidth Product: 3 MHz (reference specification)
Input Bias Current: 1 pA (reference specification)
Input Offset Voltage: 500 µV (reference specification)
Supply Current: 625 µA (reference specification)

Substitute parts are grouped into two categories based on electrical performance alignment and product status:

Category 1 - Direct Electrical Equivalents (Active Status): Parts maintaining identical or superior electrical specifications with active product status.

Category 2 - Functional Equivalents (Active Status): Parts with compatible electrical characteristics within acceptable operational parameters, offering extended temperature range or improved availability.

Parameter Comparison

Parameter	TLV271CDBVTG4	TLV271CDBVT	MCP6H01T-E/OT	TLV271CW5-7	TLV271IW5-7
Manufacturer	Texas Instruments	Texas Instruments	Microchip Technology	Diodes Incorporated	Diodes Incorporated
Product Status	Obsolete	Active	Active	Active	Active
Amplifier Type	CMOS	CMOS	General Purpose	CMOS	CMOS
Number of Circuits	1	1	1	1	1
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	2.6	2.6	0.8	2.0	2.0
Gain Bandwidth Product (MHz)	3	3	1.2	1.9	1.9
Current - Input Bias (pA)	1	1	10	1	1
Voltage - Input Offset (µV)	500	500	700	500	500
Current - Supply (µA)	625	625	135	550	550
Current - Output / Channel (mA)	8	8	—	8	8
Voltage - Supply Span Min (V)	2.7	2.7	3.5	2.7	2.7
Voltage - Supply Span Max (V)	16	16	16	16	16
Operating Temperature (°C)	0 to 70	0 to 70	-40 to 125	0 to 70	-40 to 125
Supplier Device Package	SOT-23-5	SOT-23-5	SOT-23-5	SOT-25	SOT-25
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

TLV271CDBVT (Texas Instruments)

This part is the primary recommended substitute for TLV271CDBVTG4. It maintains identical electrical specifications across all critical parameters: CMOS amplifier type, 3 MHz gain bandwidth product, 2.6 V/µs slew rate, 1 pA input bias current, and 500 µV input offset voltage. The device is packaged in SOT-23-5 configuration, matching the original part's physical footprint. Product status is active, ensuring long-term availability. RoHS3 compliance and REACH unaffected status align with the original part's regulatory standing. This substitute provides direct pin-compatible replacement without circuit modification.

TLV271IW5-7 (Diodes Incorporated)

This part offers functional equivalence with extended operating temperature range (-40°C to 125°C versus 0°C to 70°C). Electrical specifications remain compatible: CMOS technology, 1 pA input bias current, 500 µV input offset voltage, and rail-to-rail output. The slew rate is 2.0 V/µs and gain bandwidth product is 1.9 MHz, representing reduced performance relative to the original specification. Package configuration is SOT-25 surface mount. Product status is active with high inventory availability (125,807 pieces). This substitute is suitable for applications where extended temperature operation is required and reduced bandwidth is acceptable. Pin configuration differences between SOT-23-5 and SOT-25 require PCB layout verification.

TLV271CW5-7 (Diodes Incorporated)

This part provides functional equivalence with specifications similar to TLV271IW5-7 but restricted to 0°C to 70°C operating temperature range, matching the original part's thermal specification. CMOS technology, 1 pA input bias current, and 500 µV input offset voltage are maintained. Slew rate is 2.0 V/µs and gain bandwidth product is 1.9 MHz. Package is SOT-25 surface mount. Product status is active with substantial inventory (15,102 pieces). This substitute is applicable when temperature range matches the original specification and reduced bandwidth is acceptable. SOT-25 package requires PCB layout verification.

MCP6H01T-E/OT (Microchip Technology)

This part represents a functional alternative with different amplifier classification (General Purpose versus CMOS). Electrical performance is reduced: slew rate is 0.8 V/µs, gain bandwidth product is 1.2 MHz, and input bias current is 10 pA. Input offset voltage is 700 µV. Supply current is significantly lower at 135 µA. Minimum supply voltage is 3.5 V, exceeding the original part's 2.7 V minimum. Package is SOT-23-5, matching the original footprint. Product status is active. This substitute is applicable only in applications where reduced performance specifications are acceptable and minimum supply voltage of 3.5 V is compatible with system design.

Frequently Asked Questions (FAQ)

Q1: Can TLV271CDBVT directly replace TLV271CDBVTG4 without circuit modification?

A: Yes. TLV271CDBVT is a direct electrical and pin-compatible substitute. Both devices are packaged in SOT-23-5 configuration with identical electrical specifications. No circuit modification is required for substitution.

Q2: What are the key differences between SOT-23-5 and SOT-25 packages?

A: SOT-23-5 and SOT-25 are both five-pin surface mount packages but differ in physical dimensions and pin spacing. SOT-25 has larger overall dimensions and different pin pitch. PCB layout and footprint must be verified before substituting parts with different package types. Schematic connectivity remains identical; only physical placement and routing differ.

Q3: Why does MCP6H01T-E/OT have lower slew rate and bandwidth than the original part?

A: MCP6H01T-E/OT is classified as a General Purpose amplifier rather than a CMOS-optimized design. This architectural difference results in reduced slew rate (0.8 V/µs versus 2.6 V/µs) and lower gain bandwidth product (1.2 MHz versus 3 MHz). This substitute is suitable only for applications where these reduced performance specifications do not impact system function.

Q4: What is the significance of the extended temperature range in TLV271IW5-7?

A: TLV271IW5-7 operates from -40°C to 125°C, compared to the original part's 0°C to 70°C range. Extended temperature operation is required for industrial, automotive, or military applications. If the application requires only 0°C to 70°C operation, TLV271CW5-7 provides equivalent functionality at standard temperature range.

Q5: Are all substitute parts RoHS3 compliant and REACH unaffected?

A: Yes. All substitute parts listed maintain RoHS3 compliance and REACH unaffected status, matching the original part's regulatory certifications. Moisture sensitivity level is 1 (Unlimited) for all parts, indicating no special handling requirements.

Q6: Which substitute part has the highest inventory availability?

A: TLV271IW5-7 has the highest inventory availability at 125,807 pieces. This part is suitable for high-volume production requirements and offers extended temperature range operation.

Q7: Can TLV271CW5-7 and TLV271IW5-7 be used interchangeably?

A: These parts have identical electrical specifications and both use SOT-25 packaging. The primary difference is operating temperature range: TLV271CW5-7 operates 0°C to 70°C, while TLV271IW5-7 operates -40°C to 125°C. Selection depends on application temperature requirements. PCB layout is identical for both parts.

Q8: What is the minimum supply voltage requirement for each substitute?

A: TLV271CDBVTG4, TLV271CDBVT, TLV271CW5-7, and TLV271IW5-7 all require minimum 2.7 V supply voltage. MCP6H01T-E/OT requires minimum 3.5 V supply voltage. Applications operating below 3.5 V cannot use MCP6H01T-E/OT.

Q9: How does supply current consumption differ among substitutes?

A: TLV271CDBVTG4 and TLV271CDBVT consume 625 µA. TLV271CW5-7 and TLV271IW5-7 consume 550 µA. MCP6H01T-E/OT consumes only 135 µA, offering significant power savings for battery-powered applications. Lower supply current in MCP6H01T-E/OT is offset by reduced performance specifications.

Q10: Is PCB layout modification required when substituting SOT-23-5 parts?

A: No PCB layout modification is required when substituting between SOT-23-5 packaged parts (TLV271CDBVTG4, TLV271CDBVT, and MCP6H01T-E/OT). Physical footprint and pin spacing are identical. However, substitution with SOT-25 packaged parts (TLV271CW5-7 and TLV271IW5-7) requires PCB layout verification and potential footprint modification.

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