TLV4111CD Equivalent & Substitute Parts

Part Overview

The TLV4111CD is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. This device features rail-to-rail output capability and is designed for low-power applications requiring single-circuit amplification. The part is currently in Last Time Buy status, indicating discontinued production with limited availability. Identifying equivalent and substitute components is necessary to ensure design continuity and long-term supply chain reliability for applications currently utilizing this amplifier.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Slew Rate	1.57	V/µs
Gain Bandwidth Product	2.7	MHz
Current - Input Bias	0.3	pA
Voltage - Input Offset	175	µV
Current - Supply	700	µA
Current - Output / Channel	320	mA
Voltage - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	6	V
Operating Temperature	0°C ~ 70°C	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TLV4111CD is determined by strict alignment of the following critical parameters:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface-mount package to ensure direct PCB footprint compatibility without layout modifications.

Functional Characteristics: Substitute amplifiers must be single-circuit, general-purpose operational amplifiers with rail-to-rail output capability to maintain functional equivalence in existing circuit designs.

Electrical Operating Range: The supply voltage span must encompass the TLV4111CD range of 2.5 V to 6 V. Substitute parts with wider supply ranges (such as 2.7 V to 6 V or 2 V to 6 V) are acceptable as they cover the required operating window.

Performance Parameters: Slew rate, gain bandwidth product, input bias current, input offset voltage, and output current drive capability are secondary selection criteria. Substitute parts with comparable or superior performance in these areas maintain or improve circuit performance.

Compliance & Environmental: All substitute parts must maintain ROHS3 compliance and MSL rating of 1 (Unlimited) to ensure manufacturing process compatibility and long-term reliability.

Parameter Comparison

Parameter	TLV4111CD	MCP601-E/SN	MCP601-I/SN	MCP601T-E/SN	MCP6271-E/SN	MCP6271T-E/SN	MCP6L1T-E/SN	AD8061ARZ	AD8061ARZ-REEL	AD8061ARZ-REEL7
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	Voltage Feedback	Voltage Feedback	Voltage Feedback
Number of Circuits	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
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Slew Rate (V/µs)	1.57	2.3	2.3	2.3	0.9	0.9	2.3	650	650	650
Gain Bandwidth Product (MHz)	2.7	2.8	2.8	2.8	2	2	2.8	320	320	320
Current - Input Bias (pA)	0.3	1	1	1	1	1	1	3500	3500	3500
Voltage - Input Offset (mV)	0.175	0.7	0.7	0.7	3	3	1	1	1	1
Current - Supply (mA)	0.7	0.23	0.23	0.23	0.17	0.17	0.2	6.8	6.8	6.8
Current - Output / Channel (mA)	320	22	22	22	25	25	Not Specified	50	50	50
Voltage - Supply Span (Min)	2.5 V	2.7 V	2.7 V	2.7 V	2 V	2 V	2.7 V	2.7 V	2.7 V	2.7 V
Voltage - Supply Span (Max)	6 V	6 V	6 V	6 V	6 V	6 V	6 V	8 V	8 V	8 V
Operating Temperature	0°C ~ 70°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
RoHS Status	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)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitutes (Microchip Technology MCP Series):

The MCP601-E/SN, MCP601-I/SN, and MCP601T-E/SN represent the closest functional equivalents to the TLV4111CD. These devices share identical package geometry (8-SOIC), single-circuit general-purpose amplifier architecture, and rail-to-rail output configuration. The MCP601 series operates within the required 2.7 V to 6 V supply range and maintains ROHS3 compliance with MSL 1 rating. The MCP601T-E/SN variant offers the widest operating temperature range (-40°C to 125°C) and highest inventory availability (7800 units), making it the preferred selection for new designs and high-volume applications.

The MCP6271-E/SN and MCP6271T-E/SN provide alternative general-purpose amplification with lower slew rate (0.9 V/µs) and reduced supply current (170 µA). These variants are suitable for applications where power consumption is critical and bandwidth requirements are less stringent than the TLV4111CD baseline.

The MCP6L1T-E/SN combines the performance characteristics of the MCP601 series (2.3 V/µs slew rate, 2.8 MHz gain bandwidth product) with reduced supply current (200 µA) and improved input offset voltage specification (1 mV). This device is available in Tape & Reel packaging with 6448 units in stock.

Secondary Substitutes (Analog Devices AD8061 Series):

The AD8061ARZ, AD8061ARZ-REEL, and AD8061ARZ-REEL7 are voltage feedback amplifiers that maintain 8-SOIC package compatibility and rail-to-rail output capability. These devices exhibit significantly higher performance characteristics, including 650 V/µs slew rate and 320 MHz gain bandwidth product, substantially exceeding the TLV4111CD specifications. The AD8061 series operates within an extended supply range of 2.7 V to 8 V, encompassing the TLV4111CD requirements. All variants maintain ROHS3 compliance and MSL 1 rating. The AD8061ARZ-REEL7 variant offers the highest inventory availability (4200 units) in Cut Tape & Digi-Reel packaging. Selection of the AD8061 series is appropriate for applications requiring enhanced frequency response and slew rate performance beyond the original TLV4111CD design specifications.

Product Status Considerations:

The TLV4111CD is designated Last Time Buy, indicating production discontinuation. All recommended substitute parts maintain Active product status with established supply chains. The MCP601T-E/SN and AD8061ARZ-REEL7 variants demonstrate the highest inventory levels and represent the most reliable long-term sourcing options.

Frequently Asked Questions (FAQ)

Q: Can the MCP601-E/SN directly replace the TLV4111CD without PCB modifications?

A: Yes. Both devices use identical 8-SOIC (0.154", 3.90mm Width) surface-mount packages with matching pin configurations for single-circuit operational amplifiers. Direct PCB footprint compatibility is confirmed. No layout changes are required.

Q: What is the primary difference between the MCP601 and MCP6271 variants?

A: The MCP601 series provides higher slew rate (2.3 V/µs) and gain bandwidth product (2.8 MHz) compared to the MCP6271 series (0.9 V/µs slew rate, 2 MHz gain bandwidth product). The MCP6271 operates at lower supply current (170 µA versus 230 µA), making it suitable for power-constrained applications. Both maintain identical supply voltage ranges and package specifications.

Q: Why do the AD8061 variants show significantly higher slew rate and bandwidth than the TLV4111CD?

A: The AD8061 is classified as a voltage feedback amplifier optimized for high-speed signal processing, whereas the TLV4111CD is a general-purpose amplifier designed for low-power, moderate-bandwidth applications. The AD8061 series represents a performance upgrade path for applications requiring enhanced frequency response. Functional substitution is valid due to package compatibility and rail-to-rail output capability, but circuit performance characteristics will differ.

Q: What is the difference between MCP601T-E/SN (Tape & Reel) and MCP601-E/SN (Tube) packaging?

A: Both variants contain identical die and electrical specifications. The packaging difference affects handling and assembly processes. Tape & Reel (TR) packaging is optimized for automated pick-and-place assembly in high-volume manufacturing. Tube packaging is suitable for manual assembly and lower-volume applications. Electrical performance and PCB footprint are identical.

Q: Are all substitute parts RoHS3 compliant and MSL 1 rated?

A: Yes. All recommended substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) rating, matching the environmental and manufacturing specifications of the TLV4111CD. This ensures compatibility with current manufacturing processes and long-term reliability standards.

Q: Which substitute part offers the best inventory availability?

A: The AD8061ARZ-REEL7 provides the highest inventory level at 4200 units in stock, followed by the MCP601T-E/SN at 7800 units. Both represent reliable sourcing options for immediate and sustained production requirements.

Q: Can the AD8061ARZ-REEL7 be used in applications designed for the TLV4111CD?

A: Yes, with performance enhancement. The AD8061ARZ-REEL7 maintains package compatibility, single-circuit architecture, and rail-to-rail output capability. The extended supply voltage range (2.7 V to 8 V) encompasses the TLV4111CD operating window. However, the significantly higher slew rate (650 V/µs) and bandwidth (320 MHz) will alter circuit transient response and frequency characteristics. Circuit validation is recommended for applications with strict bandwidth or noise specifications.

Q: What is the operating temperature range difference between substitute parts?

A: The TLV4111CD operates from 0°C to 70°C. Most substitute parts extend this range to -40°C to 125°C (MCP601T-E/SN, MCP6271 series, MCP6L1T-E/SN) or -40°C to 85°C (MCP601-I/SN, AD8061 series). Extended temperature ranges provide greater design flexibility for industrial and automotive applications. Applications limited to the original 0°C to 70°C window will operate within the specified range of all substitute parts.

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