MAX492EPA Equivalent & Substitute Parts

Part Overview

The MAX492EPA is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, featuring dual circuits in an 8-PDIP through-hole package. This device is classified as obsolete, indicating discontinued production and limited availability in the supply chain. The MAX492EPA operates across a 2.7 V to 6 V supply range with rail-to-rail output capability, making it suitable for low-voltage analog signal processing applications. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to ensure design continuity and long-term component availability.

Substiute Parts

MAX492EPA

Analog Devices Inc./Maxim IntegratedIn Stock: 1326MAX492EPA Datasheet

Current PartRFQ

TLV2452AIP

Texas InstrumentsIn Stock: 1089TLV2452AIP Datasheet

MFR RecommendedRFQ

TLV2452IP

Texas InstrumentsIn Stock: 3192TLV2452IP Datasheet

MFR RecommendedRFQ

TLV2462AIP

Texas InstrumentsIn Stock: 2423TLV2462AIP Datasheet

MFR RecommendedRFQ

TLV2462CP

Texas InstrumentsIn Stock: 2325TLV2462CP Datasheet

MFR RecommendedRFQ

TLV2462IP

Texas InstrumentsIn Stock: 1402TLV2462IP Datasheet

MFR RecommendedRFQ

TLV2772AIP

Texas InstrumentsIn Stock: 1250TLV2772AIP Datasheet

MFR RecommendedRFQ

TLV2772CP

Texas InstrumentsIn Stock: 981TLV2772CP Datasheet

MFR RecommendedRFQ

TLV2772IP

Texas InstrumentsIn Stock: 1936TLV2772IP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX492EPA is determined by strict adherence to the following critical parameters: dual-circuit configuration, 8-PDIP through-hole package, rail-to-rail output capability, and compatible supply voltage range (2.7 V to 6 V minimum). All substitute parts identified maintain these core electrical and mechanical specifications.

The substitute parts are grouped into two functional categories based on amplifier type and performance characteristics:

Category 1: General-Purpose Amplifiers (TLV2452 Series) The TLV2452AIP, TLV2452IP, TLV2462AIP, TLV2462CP, and TLV2462IP maintain the dual-circuit, general-purpose amplifier topology with identical package and mounting specifications. These parts operate within the required supply voltage range and provide rail-to-rail output. The TLV2452 variants offer lower power consumption (23 µA vs. 150 µA) and improved input bias current performance (500 pA vs. 25 nA), while the TLV2462 variants provide higher slew rate (1.6 V/µs vs. 0.2 V/µs) and greater gain bandwidth product (6.4 MHz vs. 500 kHz).

Category 2: CMOS Amplifiers (TLV2772 Series) The TLV2772AIP, TLV2772CP, and TLV2772IP are CMOS-based dual-circuit amplifiers in identical 8-PDIP packages. These devices feature significantly lower input bias current (2 pA), higher slew rate (10.5 V/µs), and superior gain bandwidth product (5.1 MHz). However, the TLV2772 series operates within a narrower supply voltage range (2.5 V to 5.5 V), which overlaps with but does not fully encompass the MAX492EPA specification.

All substitute parts are RoHS3 compliant and carry active or last-time-buy product status, ensuring regulatory compliance and supply chain viability superior to the obsolete MAX492EPA.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement with Minimal Design Impact:

The TLV2462CP and TLV2462IP are the primary recommended substitutes for the MAX492EPA. Both devices maintain identical package geometry, through-hole mounting, and dual-circuit configuration. The TLV2462 series operates within the full 2.7 V to 6 V supply range specified for the MAX492EPA and provides superior performance characteristics including higher slew rate (1.6 V/µs) and greater gain bandwidth product (6.4 MHz). The TLV2462CP is rated for 0°C to 70°C operation, while the TLV2462IP extends to -40°C to 125°C, accommodating the MAX492EPA's -40°C to 85°C range. Both variants are RoHS3 compliant and carry active product status, ensuring long-term availability and regulatory compliance.

For Low-Power Applications:

The TLV2452AIP and TLV2452IP offer significant power consumption reduction (23 µA vs. 150 µA supply current) while maintaining the required supply voltage range and package specifications. These devices are suitable for battery-powered or energy-constrained applications where the lower slew rate (0.11 V/µs) and reduced gain bandwidth product (220 kHz) do not compromise system performance. Both variants provide extended operating temperature ranges (-40°C to 125°C) and RoHS3 compliance.

For High-Speed or High-Current Applications:

The TLV2772 series (TLV2772AIP, TLV2772IP) delivers the highest performance metrics with 10.5 V/µs slew rate, 5.1 MHz gain bandwidth product, and 50 mA output current per channel. However, the maximum supply voltage is limited to 5.5 V, which excludes operation at the MAX492EPA's 6 V maximum specification. The TLV2772AIP and TLV2772IP both support -40°C to 125°C operation and RoHS3 compliance. The TLV2772CP is restricted to 0°C to 70°C operation.

Compliance and Availability Considerations:

All substitute parts are RoHS3 compliant, addressing regulatory requirements that the obsolete MAX492EPA cannot satisfy. The TLV2462CP and TLV2462IP carry active product status, providing the strongest assurance of long-term supply chain availability. The TLV2452 and TLV2772 series are designated last-time-buy, indicating finite production windows but continued support through established distribution channels.

Frequently Asked Questions (FAQ)

Q: Can the TLV2462CP directly replace the MAX492EPA without PCB modifications?

A: Yes. The TLV2462CP is pin-compatible and housed in an identical 8-DIP through-hole package. No PCB layout changes are required. The device operates within the MAX492EPA's 2.7 V to 6 V supply range and maintains rail-to-rail output capability. However, the operating temperature range differs (0°C to 70°C for TLV2462CP vs. -40°C to 85°C for MAX492EPA), which may affect suitability for extended-temperature applications.

Q: What is the difference between TLV2462IP and TLV2462CP?

A: Both devices are identical in electrical performance and package type. The primary difference is operating temperature range: TLV2462IP operates from -40°C to 125°C, while TLV2462CP operates from 0°C to 70°C. For applications requiring the full -40°C to 85°C range of the MAX492EPA, the TLV2462IP is the appropriate selection.

Q: Why does the TLV2772 series have a lower maximum supply voltage (5.5 V vs. 6 V)?

A: The TLV2772 is a CMOS-based amplifier with different internal architecture optimized for lower power consumption and higher slew rate. This design constraint results in a 5.5 V maximum supply specification. Applications requiring operation at 6 V must use the TLV2462 or TLV2452 series instead.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed (TLV2452, TLV2462, and TLV2772 series) are RoHS3 compliant. The original MAX492EPA is RoHS non-compliant, making substitution necessary for designs subject to RoHS regulatory requirements.

Q: Which substitute offers the lowest power consumption?

A: The TLV2452AIP and TLV2452IP provide the lowest supply current at 23 µA (x2 channels), compared to 150 µA for the MAX492EPA. This represents an 85% reduction in power consumption, making these devices ideal for battery-powered or energy-constrained applications.

Q: Can I use the TLV2772 series in applications currently using the MAX492EPA?

A: The TLV2772 series is functionally compatible with the MAX492EPA in applications operating at 5.5 V or below. The TLV2772 offers superior performance (higher slew rate and gain bandwidth product) but consumes more power (1 mA vs. 150 µA). If your application requires operation at 6 V, the TLV2462 series is required instead.

Q: What is the inventory status of these substitute parts?

A: Current inventory levels are: TLV2462CP (2,300 pcs), TLV2462IP (1,334 pcs), TLV2462AIP (2,400 pcs), TLV2452AIP (998 pcs), TLV2452IP (3,146 pcs), TLV2772AIP (1,225 pcs), TLV2772IP (1,900 pcs), and TLV2772CP (895 pcs). All parts are available as new original stock.

Q: Is the TLV2462CP suitable for applications requiring -40°C operation?

A: No. The TLV2462CP is rated for 0°C to 70°C operation only. For applications requiring -40°C minimum temperature, use the TLV2462IP or TLV2452IP, both rated -40°C to 125°C.