MAX4166ESA Equivalent & Substitute Parts

Part Overview

The MAX4166ESA is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface mount package. This device features rail-to-rail output capability and operates across a supply voltage range of 2.7V to 6.5V with an operating temperature range of -40°C to 85°C. The MAX4166ESA is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. Substitute parts must maintain compatibility with the 8-SOIC package format and preserve critical electrical characteristics including slew rate, gain bandwidth product, and supply voltage specifications.

Substiute Parts

MAX4166ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 2273MAX4166ESA Datasheet

Current PartRFQ

MAX4166ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2279MAX4166ESA+ Datasheet

DirectRFQ

TLV2770AID

Texas InstrumentsIn Stock: 2192TLV2770AID Datasheet

MFR RecommendedRFQ

TLV2770CD

Texas InstrumentsIn Stock: 1125TLV2770CD Datasheet

MFR RecommendedRFQ

TLV2770CDR

Texas InstrumentsIn Stock: 2067TLV2770CDR Datasheet

MFR RecommendedRFQ

TLV2770IDR

Texas InstrumentsIn Stock: 1146TLV2770IDR Datasheet

MFR RecommendedRFQ

TLV2780IDR

Texas InstrumentsIn Stock: 2276TLV2780IDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4166ESA is determined by strict adherence to the following criteria:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.

Functional Equivalence: Substitute parts must maintain general-purpose amplifier functionality with rail-to-rail output capability and single-circuit configuration.

Electrical Parameter Alignment: Critical parameters determining substitutability include slew rate (minimum 2V/µs), gain bandwidth product (minimum 5 MHz), supply voltage span compatibility (minimum 2.7V to maximum 6.5V overlap), and output current capability (minimum 125 mA per channel).

Supply Voltage Range: The substitute part must support the full operating range of 2.7V to 6.5V. Parts with reduced supply voltage ranges (such as 1.8V to 3.6V) are not direct substitutes for applications requiring the full 2.7V to 6.5V range.

Temperature Range Consideration: The original part operates from -40°C to 85°C. Substitute parts with extended or reduced temperature ranges may be used if the application requirements fall within the substitute's specified range.

Compliance Status: RoHS compliance and product status (Active vs. Last Time Buy vs. Obsolete) are secondary selection criteria based on supply chain and regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: MAX4166ESA+

The MAX4166ESA+ is the direct functional equivalent manufactured by Analog Devices Inc./Maxim Integrated. This part maintains identical electrical specifications to the MAX4166ESA while offering Active product status and ROHS3 compliance. The MAX4166ESA+ is the preferred substitute for applications requiring exact parameter matching and continuity with the original design. Packaging is available in Tube format.

Secondary Substitutes: TLV2770 Series (Texas Instruments)

The TLV2770AID, TLV2770CD, TLV2770CDR, and TLV2770IDR represent functionally compatible alternatives from Texas Instruments. These parts maintain the 8-SOIC package, rail-to-rail output, and general-purpose amplifier classification. The TLV2770 series exhibits superior slew rate performance (10.5V/µs versus 2V/µs) and significantly lower input bias current (2 pA versus 50 nA). However, the maximum supply voltage is limited to 5.5V, making these parts unsuitable for applications requiring the full 6.5V maximum of the original MAX4166ESA. The TLV2770 series is classified as Last Time Buy, indicating limited future availability.

Temperature Range Consideration:

TLV2770CD operates within 0°C to 70°C, which is narrower than the original -40°C to 85°C range. TLV2770AID and TLV2770IDR extend to -40°C to 125°C, providing broader temperature coverage than the original part.

Alternative: TLV2780IDR

The TLV2780IDR is an Active product offering enhanced gain bandwidth product (8 MHz versus 5 MHz) and improved input offset voltage matching (250 µV). However, this part operates within a reduced supply voltage range of 1.8V to 3.6V and provides lower output current per channel (23 mA versus 125 mA). The TLV2780IDR is suitable only for low-voltage applications that do not require the full supply range or high output current capability of the original MAX4166ESA.

Compliance and Supply Chain:

For applications requiring RoHS3 compliance, MAX4166ESA+ and all TLV2770/TLV2780 variants are compliant. The original MAX4166ESA is RoHS non-compliant. For long-term supply assurance, MAX4166ESA+ (Active status) and TLV2780IDR (Active status) are preferred over Last Time Buy alternatives.

Frequently Asked Questions (FAQ)

Q1: Can TLV2770 series parts directly replace MAX4166ESA in all applications?

No. While TLV2770 parts maintain package compatibility and general-purpose amplifier functionality, the maximum supply voltage is limited to 5.5V compared to the MAX4166ESA's 6.5V maximum. Applications operating at supply voltages above 5.5V require the MAX4166ESA+ or verification that the design operates within the TLV2770's 2.5V to 5.5V range.

Q2: What is the significance of the different output current ratings?

The MAX4166ESA provides 125 mA output current per channel, while TLV2770 series parts provide 50 mA and TLV2780IDR provides 23 mA. Applications requiring high output current (above 50 mA) must use MAX4166ESA or MAX4166ESA+. Lower-current applications may use TLV2770 or TLV2780 variants.

Q3: Why does TLV2770CD have a narrower operating temperature range?

TLV2770CD is specified for 0°C to 70°C commercial temperature range, while TLV2770AID and TLV2770IDR are specified for -40°C to 125°C industrial temperature range. Applications requiring operation below 0°C or above 70°C must use TLV2770AID, TLV2770IDR, or the original MAX4166ESA.

Q4: What is the difference between TLV2770CD and TLV2770CDR packaging?

TLV2770CD is supplied in Tube packaging, while TLV2770CDR is supplied in Tape & Reel (TR) format. Both parts are electrically identical; packaging selection depends on assembly process requirements and volume.

Q5: Is MAX4166ESA+ a true equivalent or a different part?

MAX4166ESA+ is the direct equivalent of MAX4166ESA. The "+" designation indicates updated RoHS3 compliance and Active product status. Electrical specifications, package, and pinout are identical. MAX4166ESA+ is the recommended substitute for MAX4166ESA.

Q6: Can TLV2780IDR replace MAX4166ESA in existing designs?

TLV2780IDR is not a direct replacement due to reduced supply voltage range (1.8V to 3.6V versus 2.7V to 6.5V) and lower output current (23 mA versus 125 mA). Use TLV2780IDR only in new designs specifically engineered for low-voltage, low-current applications.

Q7: What does "Last Time Buy" status mean for TLV2770 parts?

Last Time Buy indicates that Texas Instruments has announced end-of-life for these products. Existing inventory may be available, but future production is not guaranteed. For long-term supply continuity, prefer Active status parts such as MAX4166ESA+ or TLV2780IDR.

Q8: Are all substitute parts RoHS3 compliant?

MAX4166ESA+ and all TLV2770/TLV2780 variants are ROHS3 compliant. The original MAX4166ESA is RoHS non-compliant. Applications subject to RoHS regulations must use compliant alternatives.