OPA180ID Zero-Drift Operational Amplifier Equivalent & Substitute Parts

Part Overview

The OPA180ID is a zero-drift operational amplifier manufactured by Texas Instruments, designed for precision analog signal conditioning applications. This single-circuit, rail-to-rail output amplifier operates across a wide supply voltage range of 4.5V to 36V and maintains an active product status with full RoHS3 compliance. The zero-drift architecture provides exceptionally low input offset voltage of 15 µV, making it suitable for applications requiring high DC accuracy. Substitute parts are necessary when addressing supply chain constraints, inventory availability, or when design specifications permit operation with alternative amplifier topologies that meet or exceed the electrical requirements of the original design.

Substiute Parts

OPA180ID

Texas InstrumentsIn Stock: 804OPA180ID Datasheet

Current PartRFQ

LT6013CS8#PBF

Analog Devices Inc.In Stock: 868LT6013CS8#PBF Datasheet

MFR RecommendedRFQ

OP113ESZ

Analog Devices Inc.In Stock: 6069OP113ESZ Datasheet

MFR RecommendedRFQ

OP113ESZ-REEL7

Analog Devices Inc.In Stock: 2286OP113ESZ-REEL7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPA180ID is determined by compatibility across the following critical parameters:

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

Supply Voltage Range: Substitute parts must operate within the minimum 4.5V supply requirement of the OPA180ID. The maximum supply voltage of 36V establishes the upper operational boundary.

Output Configuration: Rail-to-rail output capability is required to maintain signal swing characteristics across the full supply voltage range.

Single Circuit Configuration: All substitutes must be single-amplifier designs (1 circuit) to match the pinout and functional density of the original part.

Electrical Performance Boundaries: Substitute parts are acceptable when they meet or exceed the slew rate (0.8 V/µs minimum), gain bandwidth product (2 MHz minimum), and output current capability (18 mA minimum per channel).

Compliance Requirements: All substitute parts must maintain RoHS3 compliance and EAR99 export classification to satisfy regulatory and supply chain requirements.

The OPA180ID operates as a zero-drift amplifier, while the listed substitutes (LT6013CS8#PBF, OP113ESZ, OP113ESZ-REEL7) function as general-purpose amplifiers. This distinction reflects a topology change rather than a direct pin-for-pin replacement, but electrical compatibility is maintained within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

OPA180ID Selection Criteria: The OPA180ID is the primary choice when zero-drift architecture is a design requirement. Its 15 µV input offset voltage and 250 pA input bias current provide superior DC precision. The extended operating temperature range (-40°C to 105°C) supports industrial and automotive applications. MSL rating of 2 (1 Year) requires standard moisture control during storage and assembly.

LT6013CS8#PBF Selection Criteria: The LT6013CS8#PBF from Analog Devices is suitable for applications where lower supply voltage operation (2.7V minimum) is advantageous and where general-purpose amplifier performance is acceptable. The 25 µV input offset voltage represents a moderate increase from the OPA180ID. The operating temperature range is restricted to 0°C to 70°C, limiting use in extended temperature environments. MSL rating of 1 (Unlimited) provides superior moisture tolerance. This part is recommended for commercial-grade applications with relaxed temperature requirements.

OP113ESZ and OP113ESZ-REEL7 Selection Criteria: Both OP113 variants offer higher slew rate (1.2 V/µs) and gain bandwidth product (3.4 MHz) compared to the OPA180ID, making them suitable for faster signal processing applications. The 75 µV input offset voltage is acceptable for general-purpose signal conditioning where DC precision is not critical. The 240 nA input bias current is significantly higher than the OPA180ID, requiring consideration in high-impedance input circuits. Operating temperature range of -40°C to 85°C supports industrial applications. The primary distinction between OP113ESZ and OP113ESZ-REEL7 is packaging format: tube versus cut tape with Digi-Reel, affecting inventory management and assembly line integration.

Compliance and Regulatory Alignment: All substitute parts maintain ROHS3 compliance and EAR99 export classification, ensuring regulatory compatibility with the OPA180ID across global supply chains. All parts are classified as active products with ongoing manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the LT6013CS8#PBF directly replace the OPA180ID in all applications?

A: The LT6013CS8#PBF shares the 8-SOIC package and rail-to-rail output configuration, enabling direct PCB footprint compatibility. However, the operating temperature range is restricted to 0°C to 70°C, compared to the OPA180ID's -40°C to 105°C range. Applications requiring extended temperature operation must retain the OPA180ID. The 25 µV input offset voltage of the LT6013CS8#PBF is acceptable for general-purpose applications but represents a 67% increase from the OPA180ID's 15 µV specification.

Q: What is the functional difference between OP113ESZ and OP113ESZ-REEL7?

A: Both parts are electrically identical with identical electrical specifications. The distinction is packaging format: OP113ESZ is supplied in tube packaging, while OP113ESZ-REEL7 is supplied in cut tape with Digi-Reel format. Selection depends on assembly line requirements and inventory management practices. Both maintain identical performance characteristics and compliance certifications.

Q: Are the OP113 variants suitable for precision DC measurement applications?

A: The OP113 variants function as general-purpose amplifiers with 75 µV input offset voltage, compared to the OPA180ID's 15 µV zero-drift specification. For applications requiring input offset voltage below 50 µV, the OPA180ID or LT6013CS8#PBF are more appropriate. The OP113 variants are suitable for AC signal conditioning, filtering, and general-purpose amplification where DC precision is not critical.

Q: What are the moisture sensitivity implications for long-term storage?

A: The OPA180ID carries MSL rating 2 (1 Year), requiring moisture control measures during storage and limiting shelf life to one year under standard conditions. The LT6013CS8#PBF and OP113 variants carry MSL rating 1 (Unlimited), providing superior moisture tolerance and indefinite shelf life under standard storage conditions. For applications with extended inventory holding periods, the MSL 1 rated parts offer logistical advantages.

Q: Can the OPA180ID operate at 2.7V supply voltage like the LT6013CS8#PBF?

A: No. The OPA180ID minimum supply voltage is 4.5V, while the LT6013CS8#PBF operates down to 2.7V. Applications requiring operation below 4.5V supply voltage must use the LT6013CS8#PBF or equivalent low-voltage alternatives. The OPA180ID cannot be substituted in designs with supply voltages between 2.7V and 4.5V.

Q: How do the slew rate specifications affect signal fidelity?

A: The OPA180ID provides 0.8 V/µs slew rate, while the OP113 variants provide 1.2 V/µs. Higher slew rate reduces signal distortion during rapid voltage transitions. For applications with signal frequencies below 100 kHz and moderate amplitude changes, the OPA180ID's 0.8 V/µs is adequate. Applications requiring faster signal processing or higher frequency operation benefit from the OP113's 1.2 V/µs slew rate.

Q: Are all substitute parts suitable for automotive temperature ranges?

A: The OPA180ID and OP113 variants support -40°C to 85°C or -40°C to 105°C operating ranges, suitable for automotive applications. The LT6013CS8#PBF is restricted to 0°C to 70°C, making it unsuitable for automotive environments. For automotive applications, the OPA180ID or OP113 variants are required.