Overview
The OPA180IDBVR, part of the OPA180, OPA2180, and OPA4180 family, is a high-precision operational amplifier (op amp) from Texas Instruments. This device utilizes TI's proprietary zero-drift techniques to provide low offset voltage and near zero-drift over time and temperature. The OPA180IDBVR is known for its high input impedance, rail-to-rail output swing, and low quiescent current, making it suitable for a variety of precision applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VIO) | TA = 25°C, RL = 10 kΩ | 15 | 75 | - | μV |
| Input Offset Voltage Drift (dVIO/dT) | TA = –40°C to +125°C | 0.1 | 0.35 | - | μV/°C |
| Power Supply Rejection Ratio (PSRR) | VS = 4 V to 36 V, VCM = VS / 2 | 0.1 | 0.5 | - | μV/V |
| Input Bias Current (IIB) | TA = 25°C | ±0.25 | ±1 | ±5 | nA |
| Input Offset Current (IIO) | TA = 25°C | ±0.5 | ±2 | ±2.5 | nA |
| Operating Voltage Range (VS) | - | ±2 (or 4) | - | ±18 (or 36) | V |
| Quiescent Current (IQ) | TA = 25°C, IO = 0 mA | 450 | 525 | 600 | μA |
| Operating Temperature Range | - | -40 | - | 105 | °C |
| Voltage Output Swing from Rail | No load, TA = 25°C | 8 | - | 18 | mV |
Key Features
- Low offset voltage: 75 μV typical
- Near zero-drift over time and temperature: 0.35 μV/°C typical
- High input impedance
- Rail-to-rail output swing within 18 mV of the rails
- Input common-mode range includes the negative rail
- Low quiescent current: 525 μA typical per amplifier
- RFI filtered inputs
- MicroSIZE packages available (e.g., VSSOP-8, SOIC-8)
Applications
- Bridge amplifiers
- Strain gauges
- Test equipment
- Transducer applications
- Temperature measurement
- Electronic scales
- Medical instrumentation
- Resistor thermal detectors
- Precision active filters
Q & A
- What is the typical input offset voltage of the OPA180IDBVR?
The typical input offset voltage is 75 μV.
- What is the input offset voltage drift over temperature for the OPA180IDBVR?
The input offset voltage drift is 0.35 μV/°C typical.
- What is the operating voltage range for the OPA180IDBVR?
The operating voltage range is ±2 V to ±18 V (or 4 V to 36 V single supply).
- What is the quiescent current per amplifier for the OPA180IDBVR?
The quiescent current per amplifier is 525 μA typical.
- What are the package options available for the OPA180IDBVR?
The device is available in VSSOP-8 and SOIC-8 packages.
- What are some common applications for the OPA180IDBVR?
Common applications include bridge amplifiers, strain gauges, test equipment, transducer applications, temperature measurement, electronic scales, medical instrumentation, and precision active filters.
- What is the input bias current of the OPA180IDBVR?
The input bias current is ±1 nA typical.
- Does the OPA180IDBVR have RFI filtered inputs?
- What is the operating temperature range for the OPA180IDBVR?
The operating temperature range is –40°C to +125°C.
- What is the voltage output swing from the rail for the OPA180IDBVR?
The voltage output swing from the rail is within 18 mV.
