DATA SHEET
OPAx180 0.1-μV/°C Drift, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift Operational Amplifiers
1 Features
- Low Offset Voltage: 75 μV (Maximum)
- Zero-Drift: 0.1 μV/°C
- Low Noise: 10 nV/√Hz
- Very Low 1/f Noise
- Excellent DC Precision:
- PSRR: 126 dB
- CMRR: 114 dB
- Open-Loop Gain (AOL): 120 dB
- Quiescent Current: 525 μA (Maximum)
- Wide Supply Range: ±2 V to ±18 V
- Rail-to-Rail Output:
Input Includes Negative Rail - Low Bias Current: 250 pA (Typical)
- RFI Filtered Inputs
- MicroSIZE Packages
2 Applications
- Bridge Amplifiers
- Strain Gauges
- Test Equipment
- Transducer Applications
- Temperature Measurement
- Electronic Scales
- Medical Instrumentation
- Resister Thermal Detectors
- Precision Active Filters
3 Description
The OPA180, OPA2180 and OPA4180 operational amplifiers (op amps) use TI's proprietary zero-drift techniques to simultaneously provide low offset voltage (75 μV), and near zero-drift over time and temperature. These miniature, high-precision, low-quiescent-current op amps offer high input impedance and rail-to-rail output swing within 18 mV of the rails. The input common-mode range includes the negative rail. Single- or dual-supplies ranging from 4 V to 36 V (±2 V to ±18 V) can be used.
The dual-channel version is offered in VSSOP-8 packages and SOIC-8 packages. The quad-channel version is offered in SOIC-14 and TSSOP-14 packages. The single and quad package offerings (OPA180 and OPA4180) are specified from –40°C to +125°C, and the dual package (OPA2180) is specified from –40°C to +105°C.
Device Information(1)
- For all available packages, see the orderable addendum at the end of the data sheet.
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Low Noise
(Peak-to-Peak Noise = 250 nV)
4 Revision History
Changes from D Revision (May 2014) to E Revision
- Changed OPA180 and OPA4180 operating temperature from "–40°C to +105°C" to "–40°C to +125°C" in Description sectionGo
- Added storage temperature parameter as the last row in the Absolute Maximum Ratings table Go
- Changed maximum operating temperature value from 105°C to 125°C in Absolute Maximum Ratings table Go
- Changed maximum operating temperature value from 105°C to 125°C in Recommended Operating Conditions table Go
- Changed input offset voltage drift temperature range from TA = –40°C to 105°C to TA = –40°C to +125°C in Electrical Characteristics tableGo
- Changed power supply rejection ratio temperature range from TA = –40°C to 105°C to TA = –40°C to +125°C in Electrical Characteristics tableGo
- Changed OPA180 input bias current temperature range from TA = –40°C to 105°C to TA = –40°C to +125°C in Electrical Characteristics tableGo
- Added minimum OPA2180 input bias current value of 18 nA in Electrical Characteristics table Go
- Added minimum OPA180 input bias current value of 18 nA in Electrical Characteristics tableGo
- Changed OPA180 input offset current temperature range from TA = –40°C to 105°C to TA = –40°C to +125°C in Electrical Characteristics tableGo
- Added minimum OPA2180 input offset current value of 6 nA in Electrical Characteristics table Go
- Added minimum OPA180 input offset current value of 6 nA in Electrical Characteristics table Go
- Changed common-mode rejection ratio temperature range from TA = –40°C to 105°C to TA = –40°C to +125°C in Electrical Characteristics tableGo
- Changed open-loop voltage gain temperature range from TA = –40°C to 105°C to TA = –40°C to +125°C in Electrical Characteristics tableGo
- Changed voltage output swing from rail temperature range from TA = –40°C to 105°C to TA = –40°C to +125°C in Electrical Characteristics tableGo
- Changed quiescent current temperature range from TA = –40°C to 105°C to TA = –40°C to +125°C in Electrical Characteristics tableGo
- Changed operating temperature from "–40°C to +105°C" to " –40°C to +125°C" in Feature Description sectionGo
- Updated Figure 34Go
- Changed operating temperature from "–40°C to +105°C" to " –40°C to +125°C" in Power Supply Recommendations sectionGo
Changes from C Revision (December 2012) to D Revision
- Changed format to meet latest data sheet standards; added Device Functional Modes, Application and Implementation, and Power Supply Recommendations sections, and moved existing sectionsGo
- Added OPA180 to documentGo
- Added Device Information table Go
- Deleted Package Information tableGo
- OPA180 pinout drawings Go
- Added Pin Functions table Go
- Added Pin Functions table Go
- Added Pin Functions table Go
- Added Recommended Operating Conditions tableGo
- Added Thermal Information: OPA180 tableGo
- Changed Offset Voltage, Long-term stability parameter typical specification in Electrical Characteristics tableGo
- Changed last sentence of EMI Rejection sectionGo
Changes from B Revision (December 2011) to C Revision
- Changed product status from Mixed Status to Production DataGo
- Changed OPA4180 status to Production DataGo
- Added package marking to OPA2180 VSSOP-8 row in Package Information tableGo
- Deleted ordering number and transport media columns from Package Information tableGo
- Changed Input Bias Current section in Electrical Characteristics (VS = +4 V to +36 V) tableGo
Changes from A Revision (November 2011) to B Revision
5 Device Comparison Table
Table 1. Zero-Drift Amplifier Portfolio
| VERSION | PRODUCT | OFFSET VOLTAGE
(µV) |
OFFSET VOLTAGE DRIFT
(µV/°C) |
BANDWIDTH
(MHz) |
|---|---|---|---|---|
| Single | OPA188(4 V to 36 V) | 25 | 0.085 | 2 |
| OPA180 (4 V to 36 V) | 75 | 0.35 | 2 | |
| OPA333 (5 V) | 10 | 0.05 | 0.35 | |
| OPA378 (5 V) | 50 | 0.25 | 0.9 | |
| OPA735 (12 V) | 5 | 0.05 | 1.6 | |
| Dual | OPA2188 (4 V to 36 V) | 25 | 0.085 | 2 |
| OPA2180 (4 V to 36 V) | 75 | 0.35 | 2 | |
| OPA2333 (5 V) | 10 | 0.05 | 0.35 | |
| OPA2378 (5 V) | 50 | 0.25 | 0.9 | |
| OPA2735 (12 V) | 5 | 0.05 | 1.6 | |
| Quad | OPA4188 (4 V to 36 V) | 25 | 0.085 | 2 |
| OPA4180 (4 V to 36 V) | 75 | 0.35 | 2 | |
| OPA4330 (5 V) | 50 | 0.25 | 0.35 |