Specifications
| Type | Description |
|---|---|
| Part Number | OPA187 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | OPA187: 5-pin SOT-23 2.90 mm x 1.60 mm, 8-pin SOIC 4.90 mm x 3.91 mm, 8-pin VSSOP 3.00 mm x 3.00 mm |
| Amplifier channels | 1 |
| Input offset voltage | 1 uV typ, 10 uV max |
| Offset voltage drift | 0.001 uV/°C typ, 0.015 uV/°C max |
| Power-supply rejection ratio | 160 dB |
| Power-supply rejection | 0.01 uV/V typ, 1 uV/V max |
| Common-mode rejection ratio | 140 dB |
| Open-loop gain | 160 dB |
| Quiescent current | 100 uA |
| Supply voltage range | 4.5 V to 36 V |
| Dual supply voltage range | ±2.25 V to ±18 V |
| Operating temperature | -40°C to +150°C |
| Specified operating temperature | -40°C to +125°C |
| Input bias current | 100 pA typ, 350 pA max |
| Input bias current over temperature | 7.5 nA max |
| Input offset current | 100 pA typ, 500 pA max |
| Input offset current over temperature | 14.5 nA max |
| Input voltage noise | 0.4 uVPP |
| Input voltage noise | 60 nVrms |
| Input voltage noise density | 20 nV/√Hz |
| Input current noise density | 160 fA/√Hz |
| Common-mode voltage range | (V-) - 0.1 V min to (V+) - 2 V max |
| Output swing | within 5 mV of rails |
| Input common-mode includes negative rail | Yes |
| EMI filtered inputs | Yes |
| Absolute maximum supply voltage | 40 V max |
| Absolute maximum signal input voltage | (V-) - 0.5 V to (V+) + 0.5 V |
| Absolute maximum signal output voltage | (V-) - 0.5 V to (V+) + 0.5 V |
| Absolute maximum signal input current | -10 mA to +10 mA |
| Absolute maximum signal output current | -55 mA to +55 mA |
| Output short-circuit rating | Continuous |
| Absolute maximum operating temperature | -55°C to +150°C |
| Maximum junction temperature | 150°C |
| Storage temperature | -65°C to +150°C |
| ESD rating, HBM | ±4000 V |
| ESD rating, CDM | ±1500 V |
| Thermal resistance, junction-to-ambient | 273.8°C/W |
| Thermal resistance, junction-to-ambient | 159°C/W |
| Thermal resistance, junction-to-ambient | 100.1°C/W |
| Thermal resistance, junction-to-case top | 126.8°C/W |
| Thermal resistance, junction-to-case top | 37°C/W |
| Thermal resistance, junction-to-case top | 42.4°C/W |
| Thermal resistance, junction-to-board | 85.9°C/W |
| Thermal resistance, junction-to-board | 49°C/W |
| Thermal resistance, junction-to-board | 41.0°C/W |
| Datasheet Status | request_only |
Product Overview
The OPA187 is a Texas Instruments zero-drift operational amplifier for Signal_Chain designs requiring low offset and stable DC performance. The OPA187 single version provides one amplifier channel with 1 uV typical and 10 uV maximum input offset voltage under high-voltage operating conditions. Offset voltage drift is specified at 0.001 uV/°C typical and 0.015 uV/°C maximum from -40°C to +125°C.
The amplifier operates from 4.5 V to 36 V single supply or ±2.25 V to ±18 V dual supply. It provides 160 dB open-loop gain, 160 dB power-supply rejection ratio, and 140 dB common-mode rejection ratio. Input noise is specified as 0.4 uVPP and 60 nVrms from 0.1 Hz to 10 Hz, with 20 nV/√Hz voltage noise density at 1 kHz.
Package options for OPA187 include 5-pin SOT-23 measuring 2.90 mm x 1.60 mm, 8-pin SOIC measuring 4.90 mm x 3.91 mm, and 8-pin VSSOP measuring 3.00 mm x 3.00 mm. The device supports rail-to-rail output within 5 mV of the rails into high-impedance loads, includes the negative rail in the input common-mode range, and uses EMI-filtered inputs.
Key Features
- Single-channel zero-drift operational amplifier
- 1 uV typical input offset voltage
- 0.001 uV/°C typical offset drift
- 160 dB open-loop gain
- 160 dB power-supply rejection ratio
- 140 dB common-mode rejection ratio
- 100 uA quiescent current
- 4.5 V to 36 V single-supply operation
- ±2.25 V to ±18 V dual-supply operation
- Rail-to-rail output within 5 mV of rails
- Input common-mode range includes negative rail
- EMI-filtered inputs
Typical Applications
- Precision signal-chain amplification
- Low-offset DC signal conditioning
- Low-frequency noise-sensitive measurement
- Single-supply amplifier stages
- Dual-supply amplifier stages
- Negative-rail common-mode signal sensing
- High-impedance load output buffering
Procurement Notes
When requesting a quote for OPA187, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of amplifier is the OPA187?
The OPA187 is a Texas Instruments zero-drift operational amplifier in the Signal_Chain category. The extracted facts identify the OPA187 single version as a one-channel amplifier.
What supply voltage range does OPA187 support?
OPA187 supports 4.5 V to 36 V single-supply operation. For dual-supply operation, the specified range is ±2.25 V to ±18 V.
What offset performance is specified for OPA187?
Under the stated high-voltage operating condition at TA=25°C, OPA187 has 1 uV typical and 10 uV maximum input offset voltage. Offset drift is 0.001 uV/°C typical and 0.015 uV/°C maximum from -40°C to +125°C.
Which package options are listed for OPA187?
OPA187 package options include 5-pin SOT-23 at 2.90 mm x 1.60 mm, 8-pin SOIC at 4.90 mm x 3.91 mm, and 8-pin VSSOP at 3.00 mm x 3.00 mm.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.