Overview
The OPA735AIDBVRG4 is a high-precision, low-quiescent current operational amplifier from Texas Instruments. It belongs to the OPA735 series, which utilizes auto-zeroing techniques to provide low offset voltage and near-zero drift over time and temperature. This amplifier is designed for low-voltage, single-supply operation and is available in a compact SOT-23-5 package. It is optimized for applications requiring high input impedance and rail-to-rail output swing within 50mV of the supply rails.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VOS) | 1 | 5 | µV | |
| Drift over Temperature (dVOS/dT) | 0.01 | 0.05 | µV/°C | |
| Quiescent Current (IQ) | 0.6 | 0.75 | mA | |
| Input Bias Current (IB) | ±100 | ±200 | pA | |
| Common-Mode Voltage Range (VCM) | (V−) − 0.1V | (V+) − 1.5V | V | |
| Gain-Bandwidth Product (GBW) | 1.6 | MHz | ||
| Slew Rate (SR) | 1.5 | V/µs | ||
| Operating Voltage Range (VS) | 2.7 | 12 | V | |
| Temperature Range | −40 | 85 | °C |
Key Features
- Low Offset Voltage: Maximum of 5µV.
- Zero Drift: Maximum of 0.05µV/°C.
- Low Quiescent Current: Maximum of 750µA.
- Single-Supply Operation: Supports a wide supply range from 2.7V to 12V.
- Low Bias Current: Maximum of 200pA.
- Shutdown Mode: Available in some versions, allowing the amplifier to be switched to a standby current of 9µA (max) and the output to be placed in a high-impedance state.
- MicroSIZE Packages: Available in SOT23-5, SOT23-6, MSOP-8, and SO-8 packages.
- Rail-to-Rail Output Swing: Within 50mV of the supply rails.
Applications
- Transducer Applications: Suitable for precision measurement and signal conditioning.
- Temperature Measurements: Ideal for temperature sensing and monitoring.
- Electronic Scales: Used in precision weighing and measurement systems.
- Medical Instrumentation: Applicable in medical devices requiring high precision and low noise.
- Battery-Powered Instruments: Suitable for portable and battery-powered devices due to low quiescent current.
- Handheld Test Equipment: Used in various handheld test and measurement tools.
Q & A
- What is the maximum input offset voltage of the OPA735AIDBVRG4?
The maximum input offset voltage is 5µV.
- What is the drift over temperature for the OPA735AIDBVRG4?
The drift over temperature is a maximum of 0.05µV/°C.
- What is the quiescent current of the OPA735AIDBVRG4?
The quiescent current is a maximum of 750µA.
- What is the operating voltage range for the OPA735AIDBVRG4?
The operating voltage range is from 2.7V to 12V.
- Does the OPA735AIDBVRG4 have a shutdown mode?
No, the OPA735AIDBVRG4 does not have a shutdown mode. However, the OPA734 series, which is similar, does have this feature.
- What are the common package types available for the OPA735AIDBVRG4?
The OPA735AIDBVRG4 is available in SOT23-5 packages.
- What is the temperature range for the OPA735AIDBVRG4?
The specified temperature range is from −40°C to +85°C.
- What is the gain-bandwidth product of the OPA735AIDBVRG4?
The gain-bandwidth product is 1.6 MHz.
- What is the slew rate of the OPA735AIDBVRG4?
The slew rate is 1.5 V/µs.
- What are some typical applications for the OPA735AIDBVRG4?
Typical applications include transducer applications, temperature measurements, electronic scales, medical instrumentation, battery-powered instruments, and handheld test equipment.
