Overview
The OPA2188AIDR is a high-precision, low-noise operational amplifier produced by Texas Instruments. This device utilizes TI's proprietary auto-zeroing techniques to achieve low offset voltage and near zero-drift over time and temperature. It is designed for applications requiring high DC precision and low noise, offering a wide supply range and rail-to-rail output. The OPA2188AIDR is available in SOIC-8 and MSOP-8 packages and is specified for operation from –40°C to +105°C.
Key Specifications
| Parameter | Value |
|---|---|
| Offset Voltage | 25 µV (Maximum) |
| Zero-Drift | 0.03 µV/°C |
| Noise Density | 8.8 nV/√Hz |
| Noise (0.1-Hz to 10-Hz) | 0.25 µVPP |
| PSRR | 142 dB |
| CMRR | 146 dB |
| Open-Loop Gain | 136 dB |
| Gain Bandwidth | 2 MHz |
| Quiescent Current | 475 µA (Maximum) |
| Supply Range | ±2 V to ±18 V |
| Operating Temperature Range | –40°C to +105°C |
| Package | SOIC-8, MSOP-8 |
Key Features
- Low Offset Voltage: 25 µV (Maximum)
- Zero-Drift: 0.03 µV/°C
- Low Noise: 8.8 nV/√Hz
- Excellent DC Precision: PSRR of 142 dB, CMRR of 146 dB, and Open-Loop Gain of 136 dB
- Gain Bandwidth: 2 MHz
- Quiescent Current: 475 µA (Maximum)
- Wide Supply Range: ±2 V to ±18 V
- Rail-to-Rail Output: Input includes negative rail
- RFI Filtered Inputs
Applications
- Bridge Amplifiers
- Strain Gauges
- Test Equipment
- Transducer Applications
- Temperature Measurement
- Electronic Scales
- Medical Instrumentation
- Resistance Temperature Detectors
- Precision Active Filters
Q & A
- What is the maximum offset voltage of the OPA2188AIDR?
The maximum offset voltage is 25 µV. - What is the zero-drift specification of the OPA2188AIDR?
The zero-drift is 0.03 µV/°C. - What is the noise density of the OPA2188AIDR?
The noise density is 8.8 nV/√Hz. - What is the gain bandwidth of the OPA2188AIDR?
The gain bandwidth is 2 MHz. - What is the quiescent current of the OPA2188AIDR?
The quiescent current is 475 µA (Maximum). - What is the supply range of the OPA2188AIDR?
The supply range is ±2 V to ±18 V. - What are the available packages for the OPA2188AIDR?
The device is available in SOIC-8 and MSOP-8 packages. - What is the operating temperature range of the OPA2188AIDR?
The operating temperature range is –40°C to +105°C. - Does the OPA2188AIDR have RFI filtered inputs?
Yes, the OPA2188AIDR has RFI filtered inputs. - What are some common applications of the OPA2188AIDR?
Common applications include bridge amplifiers, strain gauges, test equipment, transducer applications, temperature measurement, electronic scales, medical instrumentation, resistance temperature detectors, and precision active filters.
