Overview
The OPA735AIDBVT is a high-precision, single-supply CMOS operational amplifier from Texas Instruments. It is part of the OPA735 series, which utilizes auto-zeroing techniques to provide exceptionally low offset voltage and near-zero drift over time and temperature. This amplifier is designed for low-voltage, single-supply operation and is optimized for applications requiring high precision and low power consumption.
The OPA735AIDBVT is available in the MicroSIZE SOT23-5 package and is specified for operation from −40°C to +85°C. It offers a wide supply range of 2.7V to 12V (±1.35V to ±6V), making it versatile for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VOS) | 1 | - | 5 | µV |
| Offset Voltage Drift (dVOS/dT) | 0.01 | 0.05 | 0.05 | µV/°C |
| Quiescent Current (IQ) | 0.6 | - | 0.75 | mA |
| Input Bias Current (IB) | ±100 | - | ±200 | pA |
| Operating Voltage Range (VS) | 2.7 | - | 12 | V |
| Temperature Range | −40 | - | +85 | °C |
| Shutdown Current (IQSD) | - | - | 9 | µA |
Key Features
- Low offset voltage: 5µV max
- Low drift over time and temperature: 0.05µV/°C max
- Low quiescent current: 750µA max
- Single-supply operation with a wide supply range: 2.7V to 12V (±1.35V to ±6V)
- Low bias current: 200pA max
- Shutdown mode with high-impedance output state
- MicroSIZE packages: SOT23-5 and SO-8
- Rail-to-rail output swing within 50mV of the rails
- High input impedance
Applications
- Transducer applications
- Temperature measurements
- Electronic scales
- Medical instrumentation
- Battery-powered instruments
- Handheld test equipment
Q & A
- What is the maximum input offset voltage of the OPA735AIDBVT?
The maximum input offset voltage is 5µV.
- What is the temperature drift of the OPA735AIDBVT?
The temperature drift is 0.05µV/°C max.
- What is the quiescent current of the OPA735AIDBVT?
The quiescent current is 0.75mA max.
- What is the operating voltage range of the OPA735AIDBVT?
The operating voltage range is 2.7V to 12V (±1.35V to ±6V).
- Does the OPA735AIDBVT have a shutdown mode?
Yes, it has a shutdown mode with a high-impedance output state and a maximum shutdown current of 9µA.
- What are the available package types for the OPA735AIDBVT?
The available package types are MicroSIZE SOT23-5 and SO-8.
- What is the input bias current of the OPA735AIDBVT?
The input bias current is ±200pA max.
- What is the temperature range for the OPA735AIDBVT?
The specified temperature range is −40°C to +85°C.
- How does the auto-zeroing technique benefit the OPA735AIDBVT?
The auto-zeroing technique provides low offset voltage and near-zero drift over time and temperature, enhancing the amplifier's precision.
- What are some typical applications for the OPA735AIDBVT?
Typical applications include transducer applications, temperature measurements, electronic scales, medical instrumentation, battery-powered instruments, and handheld test equipment.
