TLV2631IDBVR Equivalent & Substitute Parts

Part Overview

The TLV2631IDBVR is a general-purpose operational amplifier manufactured by Texas Instruments, packaged in SOT-23-5 surface mount configuration. This device features rail-to-rail output capability and operates across a 2.7 V to 5.5 V supply range, making it suitable for low-voltage analog signal processing applications. The part is currently in Last Time Buy status, indicating end-of-life production. Equivalent and substitute parts are necessary to ensure design continuity and maintain supply chain reliability for applications requiring this amplifier topology.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Slew Rate	10	V/µs
Gain Bandwidth Product	9	MHz
Current - Input Bias	1	pA
Voltage - Input Offset	250	µV
Current - Supply	730	µA
Current - Output / Channel	28	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 125	°C
Package / Case	SC-74A, SOT-753	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TLV2631IDBVR is determined by the following critical parameters:

Primary Substitution Criteria:

Package compatibility: SOT-23-5 (SC-74A, SOT-753)
Output configuration: Rail-to-rail output
Single circuit topology
Surface mount mounting type
Operating temperature range: -40°C to 125°C
Supply voltage range: Minimum 2.7 V, Maximum 5.5 V
Compliance: ROHS3, MSL 1

Secondary Performance Parameters:

Slew rate (10 V/µs baseline)
Gain bandwidth product (9 MHz baseline)
Input bias current (1 pA baseline)
Input offset voltage (250 µV baseline)
Supply current (730 µA baseline)
Output current capability (28 mA baseline)

Substitute parts are grouped into two categories based on performance alignment:

Category A - Direct Performance Alignment: Parts with slew rate and gain bandwidth product within ±30% of the main part, maintaining similar input bias current and offset voltage characteristics.

Category B - Functional Equivalence: Parts meeting all primary substitution criteria with acceptable performance variance in secondary parameters, suitable for applications with relaxed performance requirements.

Parameter Comparison

Parameter	TLV2631IDBVR	TLV9061IDBVR	AD8515ARTZ-REEL	AD8601ARTZ-REEL	ISL28114FHZ-T7A
Manufacturer	Texas Instruments	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.	Renesas Electronics
Amplifier Type	General Purpose	CMOS	General Purpose	General Purpose	General Purpose
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)	10	6.5	2.7	6	2.5
Gain Bandwidth Product (MHz)	9	10	5	8.4	5
Current - Input Bias (pA)	1	0.5	5	0.2	3
Voltage - Input Offset (µV)	250	300	1000	80	500
Current - Supply (µA)	730	538	410	750	300
Current - Output / Channel (mA)	28	50	20	50	31
Voltage - Supply Span Min (V)	2.7	1.8	1.8	2.7	1.8
Voltage - Supply Span Max (V)	5.5	5.5	5	5.5	5.5
Operating Temperature (°C)	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Last Time Buy	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

TLV9061IDBVR (Texas Instruments)

The TLV9061IDBVR is a CMOS-based substitute with active product status. It provides a gain bandwidth product of 10 MHz, exceeding the main part by 11%, and maintains a slew rate of 6.5 V/µs. Input bias current is reduced to 0.5 pA. Supply current is lower at 538 µA compared to 730 µA. Output current capability is increased to 50 mA. The minimum supply voltage is 1.8 V, providing extended low-voltage operation. This part is suitable for applications where lower power consumption and higher output drive capability are beneficial.

AD8515ARTZ-REEL and AD8515ARTZ-REEL7 (Analog Devices Inc.)

Both variants of the AD8515 are general-purpose amplifiers with active product status. These parts operate with a slew rate of 2.7 V/µs and gain bandwidth product of 5 MHz, representing reduced performance compared to the main part. Input bias current is 5 pA, and input offset voltage is 1 mV. Supply current is 410 µA, the lowest among all substitutes. Output current is 20 mA. The maximum supply voltage is 5 V, which is 0.5 V below the main part specification. These parts are suitable for applications with relaxed bandwidth and slew rate requirements and where minimum power consumption is prioritized.

AD8601ARTZ-REEL, AD8601ARTZ-REEL7, AD8601ARTZ-R2, AD8601WARTZ-R7, and AD8601WDRTZ-REEL7 (Analog Devices Inc.)

The AD8601 series comprises general-purpose amplifiers with active product status and DigiTrim® technology (except automotive variants). Slew rate is 6 V/µs and gain bandwidth product is 8.4 MHz. Input bias current is 0.2 pA in standard variants and 200 nA in automotive-grade AD8601WARTZ-R7. Input offset voltage is 80 µV in standard variants and 1.3 mV in automotive variants. Supply current is 750 µA. Output current is 50 mA. Supply voltage range is 2.7 V to 5.5 V, matching the main part. AD8601WARTZ-R7 and AD8601WDRTZ-REEL7 include automotive-grade qualification. These parts provide performance closely aligned with the main part while maintaining active production status.

ISL28114FHZ-T7A (Renesas Electronics Corporation)

The ISL28114FHZ-T7A is a general-purpose amplifier with active product status. Slew rate is 2.5 V/µs and gain bandwidth product is 5 MHz. Input bias current is 3 pA and input offset voltage is 500 µV. Supply current is 300 µA, the lowest among all substitutes. Output current is 31 mA. Supply voltage range is 1.8 V to 5.5 V, providing extended low-voltage operation. This part is suitable for battery-powered and low-power applications where supply current minimization is critical.

Frequently Asked Questions (FAQ)

Q1: Can I directly replace TLV2631IDBVR with any of these substitute parts without circuit modification?

All listed substitute parts share the same SOT-23-5 package and pinout compatibility. However, electrical performance differences require circuit evaluation. Parts with significantly different slew rates, gain bandwidth products, or supply current characteristics may require component value adjustments in feedback networks or power supply design. Consult application schematics and datasheet specifications before implementation.

Q2: What is the primary difference between TLV9061IDBVR and the main part?

The TLV9061IDBVR uses CMOS technology compared to the general-purpose topology of TLV2631IDBVR. The TLV9061 offers lower input bias current (0.5 pA vs. 1 pA), higher output current capability (50 mA vs. 28 mA), and lower supply current (538 µA vs. 730 µA). The gain bandwidth product is slightly higher at 10 MHz. The minimum supply voltage is extended to 1.8 V.

Q3: Which substitute part has the lowest power consumption?

The ISL28114FHZ-T7A has the lowest supply current at 300 µA, followed by AD8515ARTZ-REEL at 410 µA. For battery-powered or energy-constrained applications, these parts are preferred. However, they have lower slew rates (2.5 V/µs and 2.7 V/µs respectively) compared to the main part (10 V/µs).

Q4: Are all substitute parts RoHS3 compliant and MSL 1?

Yes, all listed substitute parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the main part specifications.

Q5: What is the significance of product status (Active vs. Last Time Buy)?

The TLV2631IDBVR is in Last Time Buy status, indicating Texas Instruments has discontinued production and will no longer accept new orders after a specified date. All listed substitute parts have Active product status, meaning they are in current production and available for long-term supply. This is the primary reason for identifying substitutes.

Q6: Can I use AD8515 parts if my application requires 5.5 V supply?

The AD8515ARTZ-REEL and AD8515ARTZ-REEL7 have a maximum supply voltage of 5 V, not 5.5 V. If your application requires operation at 5.5 V, these parts are not suitable. Use AD8601 series or ISL28114FHZ-T7A instead, which support 5.5 V maximum supply.

Q7: What is the difference between AD8601ARTZ-REEL and AD8601WARTZ-R7?

AD8601ARTZ-REEL is a standard industrial-grade part. AD8601WARTZ-R7 is automotive-grade with extended qualification testing. The automotive variant has higher input bias current (200 nA vs. 0.2 pA) and higher input offset voltage (1.3 mV vs. 80 µV). Use automotive variants only if automotive-grade qualification is required.

Q8: Which substitute part most closely matches the performance of TLV2631IDBVR?

The TLV9061IDBVR provides the closest performance match with a gain bandwidth product of 10 MHz (vs. 9 MHz) and slew rate of 6.5 V/µs (vs. 10 V/µs). The AD8601 series also provides good alignment with 8.4 MHz gain bandwidth product and 6 V/µs slew rate, while maintaining the same 2.7 V to 5.5 V supply range.

Q9: Are there packaging options other than SOT-23-5 for these substitute parts?

All listed substitute parts are specified in SOT-23-5 packaging (SC-74A, SOT-753). No alternative packages are provided in this reference. Consult manufacturer datasheets for availability of other package options.

Q10: What is the difference between Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) packaging?

Both are surface mount packaging formats. Tape & Reel (TR) is standard reel packaging for automated assembly. Cut Tape (CT) & Digi-Reel® is a smaller quantity format suitable for prototyping or lower-volume production. Electrical specifications are identical; the difference is in supply format and quantity per reel.

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