OPA2187IDR Zero-Drift Operational Amplifier Equivalent & Substitute Parts

Part Overview

The OPA2187IDR is a zero-drift operational amplifier manufactured by Texas Instruments, designed for precision analog signal conditioning applications. This dual-channel amplifier features rail-to-rail output capability and operates across a wide supply voltage range of 4.5V to 36V. The device is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when the original OPA2187IDR becomes unavailable, when supply chain constraints occur, or when design requirements necessitate alternative performance characteristics within the zero-drift amplifier category.

Substiute Parts

OPA2187IDR

Texas InstrumentsIn Stock: 100451OPA2187IDR Datasheet

Current PartRFQ

MAX44248ASA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 35377MAX44248ASA+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPA2187IDR is determined by strict equivalence in the following critical parameters:

Mandatory Equivalence Criteria:

• Amplifier Type: Zero-Drift classification
• Number of Circuits: Dual-channel (2 circuits)
• Output Type: Rail-to-Rail capability
• Package / Case: 8-SOIC form factor (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Operating Temperature Range: -40°C to 125°C minimum
• Supply Voltage Compatibility: Minimum 4.5V to maximum 36V operation

Performance Parameters (Secondary Consideration):

• Slew Rate
• Gain Bandwidth Product
• Input Bias Current
• Input Offset Voltage
• Supply Current
• Output Current per Channel

The MAX44248ASA+T qualifies as a direct substitute based on matching all mandatory equivalence criteria. Performance parameters may differ within acceptable ranges for the zero-drift amplifier category.

Parameter Comparison

Engineering Selection Recommendations

OPA2187IDR Selection Criteria:

• Primary choice when original part number specification is required
• Active product status with continuous manufacturer support
• RoHS3 compliant for regulated applications
• MSL Level 2 requires controlled storage conditions (1 Year shelf life)
• Minimum supply voltage requirement of 4.5V

MAX44248ASA+T Selection Criteria:

• Direct functional substitute with identical package and pinout
• Active product status with continuous manufacturer support
• RoHS3 compliant for regulated applications
• MSL Level 1 provides superior moisture handling (Unlimited shelf life)
• Lower minimum supply voltage (2.7V) enables broader application range
• Higher slew rate (0.7V/µs vs. 0.2V/µs) and gain bandwidth product (1MHz vs. 550kHz) for faster signal conditioning
• Improved output current capability (40mA vs. 30mA per channel)
• Lower supply current consumption (90µA vs. 100µA for dual channels)

Both parts maintain identical operating temperature range (-40°C to 125°C) and maximum supply voltage (36V). Selection between these parts depends on application-specific requirements for supply voltage range, signal bandwidth, and storage environment conditions.

Frequently Asked Questions (FAQ)

Q: Can MAX44248ASA+T replace OPA2187IDR in existing PCB designs without layout modifications?

A: Yes. Both devices use identical 8-SOIC package dimensions (0.154", 3.90mm Width) and surface mount technology. Pin-to-pin compatibility is maintained for zero-drift dual-channel amplifier applications. No PCB layout changes are required.

Q: What is the primary difference in performance between OPA2187IDR and MAX44248ASA+T?

A: The MAX44248ASA+T provides higher slew rate (0.7V/µs vs. 0.2V/µs), higher gain bandwidth product (1MHz vs. 550kHz), and greater output current per channel (40mA vs. 30mA). The OPA2187IDR offers lower input offset voltage (1µV vs. 2µV) and lower input bias current (100pA vs. 150pA).

Q: Are there supply voltage compatibility concerns when substituting these parts?

A: The OPA2187IDR requires minimum 4.5V supply voltage. The MAX44248ASA+T operates at lower minimum voltage (2.7V). Both support maximum 36V. Designs operating below 4.5V supply voltage cannot use OPA2187IDR but can use MAX44248ASA+T.

Q: What does MSL Level 2 vs. Level 1 mean for component handling?

A: MSL (Moisture Sensitivity Level) 2 indicates the OPA2187IDR requires controlled storage with 1-year shelf life after moisture exposure. MSL Level 1 (MAX44248ASA+T) has unlimited shelf life. For high-volume manufacturing or extended storage, MAX44248ASA+T provides superior moisture tolerance.

Q: Are both parts RoHS3 compliant?

A: Yes. Both OPA2187IDR and MAX44248ASA+T are RoHS3 compliant and REACH unaffected, meeting regulatory requirements for restricted substance elimination.

Q: Which part should be selected for low-power applications?

A: The MAX44248ASA+T consumes 90µA total supply current (dual channels) compared to 100µA for OPA2187IDR, providing 10% lower power consumption. For battery-powered or energy-constrained applications, MAX44248ASA+T is the preferred choice.