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MAX4251ESA-T Equivalent & Substitute Parts
Part Overview
The MAX4251ESA-T is a general purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, configured as a single-circuit push-pull, rail-to-rail output device in 8-SOIC surface mount packaging. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and production continuity. The MAX4251ESA-T operates across a 2.4V to 5.5V supply range with a slew rate of 0.3V/µs and 3 MHz gain bandwidth product, serving applications requiring general purpose amplification in compact form factors.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | MAX4251ESA-T | — |
| Manufacturer | Analog Devices Inc./Maxim Integrated | — |
| Category | Linear, Amplifiers | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 1 | — |
| Output Type | Push-Pull, Rail-to-Rail | — |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Voltage - Supply Span (Min) | 2.4 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 85 | °C |
| Slew Rate | 0.3 | V/µs |
| Gain Bandwidth Product | 3 | MHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 70 | µV |
| Current - Supply | 420 | µA |
| Current - Output / Channel | 68 | mA |
| Product Status | Obsolete | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the MAX4251ESA-T is determined by the following critical parameters that must be maintained or exceeded:
Mandatory Compatibility Criteria:
- Package type: 8-SOIC surface mount form factor (0.154", 3.90mm width)
- Amplifier configuration: Single-circuit general purpose operational amplifier
- Output stage: Rail-to-rail capability
- Supply voltage range: Minimum 2.4V to maximum 5.5V overlap
- Pin-compatible 8-SOIC footprint
Performance Parameters Defining Substitution Scope:
- Slew rate: 0.3V/µs (baseline; substitutes may exceed this value)
- Gain bandwidth product: 3 MHz (baseline; substitutes may exceed this value)
- Input bias current: 1 pA (baseline; substitutes may exceed this value)
- Input offset voltage: 70 µV (baseline; substitutes may exceed this value)
- Supply current: 420µA (baseline; substitutes may exceed this value)
- Output current per channel: 68 mA (baseline; substitutes may exceed this value)
Regulatory & Environmental Compliance:
- RoHS3 compliance required
- MSL rating of 1 (Unlimited) preferred
- REACH unaffected status maintained
The four substitute parts identified (TLV2620IDR, TLV2770AID, TLV2770CDR, TLV2770IDR) all satisfy the mandatory compatibility criteria while offering enhanced performance specifications across multiple parameters.
Parameter Comparison
| Parameter | MAX4251ESA-T | TLV2620IDR | TLV2770AID | TLV2770CDR | TLV2770IDR | Unit |
|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices/Maxim | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | — |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | — |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | — |
| Number of Circuits | 1 | 1 | 1 | 1 | 1 | — |
| Output Type | Push-Pull, Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | — |
| Amplifier Type | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | — |
| Voltage - Supply Span (Min) | 2.4 | 2.7 | 2.5 | 2.5 | 2.5 | V |
| Voltage - Supply Span (Max) | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | V |
| Operating Temperature (Min) | -40 | -40 | -40 | 0 | -40 | °C |
| Operating Temperature (Max) | 85 | 125 | 125 | 70 | 125 | °C |
| Slew Rate | 0.3 | 7 | 10.5 | 10.5 | 10.5 | V/µs |
| Gain Bandwidth Product | 3 | 11 | 5.1 | 5.1 | 5.1 | MHz |
| Current - Input Bias | 1 | 2 | 2 | 2 | 2 | pA |
| Voltage - Input Offset | 70 | 250 | 500 | 500 | 500 | µV |
| Current - Supply | 420 | 800 | 1000 | 1000 | 1000 | µA |
| Current - Output / Channel | 68 | 28 | 50 | 50 | 50 | mA |
| Product Status | Obsolete | Last Time Buy | Last Time Buy | Last Time Buy | Last Time Buy | — |
| 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
TLV2620IDR (Texas Instruments)
The TLV2620IDR is classified as Last Time Buy status and offers the highest gain bandwidth product (11 MHz) among the substitute options. This part maintains full compatibility with the 8-SOIC package footprint and supply voltage range (2.7V to 5.5V). The extended operating temperature range (-40°C to 125°C) exceeds the original MAX4251ESA-T specification. RoHS3 compliance and MSL 1 rating are maintained. The TLV2620IDR is suitable for applications where increased bandwidth performance is beneficial and the minimum supply voltage of 2.7V is acceptable.
TLV2770AID (Texas Instruments)
The TLV2770AID is supplied in tube packaging and carries Last Time Buy status. This part provides a slew rate of 10.5V/µs and gain bandwidth product of 5.1 MHz, representing a balanced performance enhancement over the original part. The supply voltage range (2.5V to 5.5V) closely matches the MAX4251ESA-T minimum specification. Extended operating temperature range (-40°C to 125°C) is provided. RoHS3 compliance and MSL 1 rating are maintained. This part is suitable for applications requiring moderate performance improvement with extended temperature operation.
TLV2770CDR (Texas Instruments)
The TLV2770CDR is supplied in tape and reel packaging and carries Last Time Buy status. This part shares identical electrical specifications with the TLV2770AID (10.5V/µs slew rate, 5.1 MHz gain bandwidth product). The operating temperature range is restricted to 0°C to 70°C, which is narrower than the original MAX4251ESA-T specification. RoHS3 compliance and MSL 1 rating are maintained. This part is suitable for applications operating within the 0°C to 70°C temperature window where tape and reel packaging is preferred for automated assembly.
TLV2770IDR (Texas Instruments)
The TLV2770IDR is supplied in tape and reel packaging and carries Last Time Buy status. This part provides identical electrical specifications to the TLV2770AID (10.5V/µs slew rate, 5.1 MHz gain bandwidth product) with extended operating temperature range (-40°C to 125°C). The supply voltage range (2.5V to 5.5V) closely matches the MAX4251ESA-T minimum specification. RoHS3 compliance and MSL 1 rating are maintained. This part is suitable for applications requiring extended temperature operation with tape and reel packaging for automated assembly.
All four substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) rating, and REACH unaffected status, ensuring regulatory and environmental compatibility with the original MAX4251ESA-T.
Frequently Asked Questions (FAQ)
Q: Why is the MAX4251ESA-T being discontinued?
A: The MAX4251ESA-T is classified as obsolete. Substitute parts identified in this reference are all classified as Last Time Buy status, indicating limited availability. Early transition planning to alternative components is necessary for production continuity.
Q: Are all substitute parts pin-compatible with the MAX4251ESA-T?
A: All four substitute parts (TLV2620IDR, TLV2770AID, TLV2770CDR, TLV2770IDR) are packaged in 8-SOIC form factor with identical pin spacing (0.154", 3.90mm width). Pin-level compatibility must be verified against specific application schematics, as functional pin assignments may differ between manufacturers.
Q: What is the key difference between TLV2770AID and TLV2770CDR?
A: The TLV2770AID and TLV2770CDR share identical electrical performance specifications (10.5V/µs slew rate, 5.1 MHz gain bandwidth product). The primary differences are packaging format (tube versus tape and reel) and operating temperature range. TLV2770AID operates from -40°C to 125°C, while TLV2770CDR operates from 0°C to 70°C.
Q: Which substitute part offers the best performance improvement?
A: The TLV2620IDR provides the highest gain bandwidth product at 11 MHz and the highest slew rate at 7V/µs. The TLV2770 series (all variants) provides a slew rate of 10.5V/µs with 5.1 MHz gain bandwidth product. Selection depends on specific application requirements for bandwidth and slew rate performance.
Q: What is the minimum supply voltage compatibility?
A: The MAX4251ESA-T operates from 2.4V minimum. The TLV2620IDR requires 2.7V minimum, while TLV2770 series parts require 2.5V minimum. Applications operating below 2.5V are limited to TLV2770 series substitutes. Applications requiring 2.4V operation cannot use TLV2620IDR.
Q: Are all substitute parts RoHS3 compliant?
A: All four substitute parts (TLV2620IDR, TLV2770AID, TLV2770CDR, TLV2770IDR) are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and REACH unaffected status, matching the original MAX4251ESA-T regulatory compliance profile.
Q: What is the difference in output current capability?
A: The MAX4251ESA-T provides 68 mA output current per channel. The TLV2620IDR provides 28 mA, while TLV2770 series parts provide 50 mA. Applications requiring output currents exceeding 50 mA may require circuit redesign or alternative component selection.
Q: Which substitute part has the lowest supply current consumption?
A: The MAX4251ESA-T consumes 420µA supply current. The TLV2620IDR consumes 800µA, while TLV2770 series parts consume 1mA. For power-sensitive applications, the MAX4251ESA-T baseline is lower than all identified substitutes.
Q: Can TLV2770CDR be used in applications requiring -40°C operation?
A: No. The TLV2770CDR operating temperature range is 0°C to 70°C. Applications requiring -40°C operation must use TLV2770AID or TLV2770IDR, which both operate from -40°C to 125°C.
Q: What packaging formats are available for the substitute parts?
A: TLV2620IDR is supplied in tape and reel (TR) packaging. TLV2770AID is supplied in tube packaging. TLV2770CDR and TLV2770IDR are supplied in tape and reel (TR) packaging. Packaging selection affects automated assembly compatibility and handling requirements.
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