Overview
The OPA188AIDR is a precision, low-noise, rail-to-rail output operational amplifier produced by Texas Instruments. This device utilizes TI's proprietary auto-zeroing techniques to achieve low offset voltage (25-μV maximum) and near zero-drift over time and temperature. The OPA188AIDR is designed for high-precision applications, offering excellent overall performance with high common-mode rejection ratio (CMRR), power supply rejection ratio (PSRR), and open-loop gain (AOL).
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Gain Bandwidth | 2 MHz | |
| Quiescent Current | 510 μA (Maximum) | VS = ±4 V to ±18 V, IO = 0 mA, TA = –40°C to +125°C |
| Supply Voltage Range | ±2 V to ±18 V (4 V to 36 V) | |
| Input Common-Mode Range | Includes negative rail | |
| Output Voltage Swing | Within 15 mV of the rails | No load |
| Short-Circuit Current | Sinking: –18 mA, Sourcing: 16 mA | |
| Open-Loop Output Resistance | 120 Ω at f = 1 MHz, IO = 0 | |
| Capacitive Load Drive | 1 nF | |
| Operating Temperature Range | –40°C to +125°C |
Key Features
- Precision offset and drift: 0.085 µV/°C temperature drift.
- Low noise and high CMRR, PSRR, and AOL.
- Rail-to-rail output swing within 15 mV of the rails.
- RFI filtered inputs.
- Unity-gain stable.
- Available in MicroSIZE packages: SOT-23-5, MSOP-8, and SO-8).
Applications
- Weight scale).
- Analog input module).
- Flow transmitter).
- Battery test).
- DC power supply, AC source, electronic load).
- Data acquisition (DAQ)).
- Semiconductor test).
Q & A
- What is the maximum offset voltage of the OPA188AIDR?
The maximum offset voltage is 25 μV.
- What is the gain bandwidth of the OPA188AIDR?
The gain bandwidth is 2 MHz.
- What is the quiescent current of the OPA188AIDR?
The quiescent current is up to 510 μA (maximum) at VS = ±4 V to ±18 V, IO = 0 mA, and TA = –40°C to +125°C).
- What is the supply voltage range for the OPA188AIDR?
The supply voltage range is ±2 V to ±18 V (4 V to 36 V).
- Does the OPA188AIDR have rail-to-rail output?
Yes, the OPA188AIDR has rail-to-rail output swing within 15 mV of the rails).
- What are the available packages for the OPA188AIDR?
The OPA188AIDR is available in MicroSIZE packages: SOT-23-5, MSOP-8, and SO-8).
- What is the operating temperature range of the OPA188AIDR?
The operating temperature range is –40°C to +125°C).
- Is the OPA188AIDR unity-gain stable?
Yes, the OPA188AIDR is unity-gain stable).
- What are some typical applications of the OPA188AIDR?
Typical applications include weight scales, analog input modules, flow transmitters, battery tests, DC power supplies, data acquisition (DAQ), and semiconductor tests).
- Does the OPA188AIDR have RFI filtered inputs?
Yes, the OPA188AIDR has RFI filtered inputs).
