Overview
The OPA335AIDBVT is a high-precision, single-supply CMOS operational amplifier produced by Texas Instruments. It is part of the OPA335 series, which utilizes auto-zeroing techniques to achieve very low offset voltage and near zero drift over time and temperature. This amplifier is known for its low quiescent current, high input impedance, and rail-to-rail output swing, making it suitable for a variety of precision applications.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VCM = VS/2 | 1 | 5 | µV | |
| Offset Voltage Drift (dVOS/dT) | ±0.02 | ±0.05 | µV/°C | ||
| Input Bias Current (IB) | VCM = VS/2 | ±70 | ±200 | pA | |
| Quiescent Current (IQ) | IO = 0 | 285 | 350 | µA | |
| Operating Voltage Range | 2.7 | 5.5 | V | ||
| Operating Temperature Range | -40 | 125 | °C | ||
| Package | SOT-23 (DBV) | ||||
| Pins | 5 |
Key Features
- Low Offset Voltage: 5 µV (max)
- Zero Drift: 0.05 µV/°C (max)
- Quiescent Current: 285 µA
- Single-Supply Operation: As low as +2.7V
- Shutdown Capability: Allows for power saving and output multiplexing
- Micro-Size Packages: Available in SOT-23 (DBV) package
- High Input Impedance and Rail-to-Rail Output Swing: Enhances performance in various applications
Applications
- Transducer Applications: Suitable for precision measurement and signal conditioning
- Temperature Measurement: High accuracy and stability make it ideal for temperature sensing
- Electronic Scales: Used in precision weighing and measurement systems
- Medical Instrumentation: Applies to medical devices requiring high precision and low noise
- Battery-Powered Instruments: Low quiescent current extends battery life
- Handheld Test Equipment: Compact size and low power consumption make it suitable for portable devices
Q & A
- What is the maximum input offset voltage of the OPA335AIDBVT?
The maximum input offset voltage is 5 µV.
- What is the typical quiescent current of the OPA335AIDBVT?
The typical quiescent current is 285 µA.
- What is the operating temperature range of the OPA335AIDBVT?
The operating temperature range is from -40°C to 125°C.
- Does the OPA335AIDBVT support single-supply operation?
- What package types are available for the OPA335AIDBVT?
- What is the maximum offset voltage drift of the OPA335AIDBVT?
The maximum offset voltage drift is 0.05 µV/°C.
- Can the OPA335AIDBVT be used in battery-powered instruments?
- Does the OPA335AIDBVT have a shutdown feature?
- What are some common applications of the OPA335AIDBVT?
- How does the auto-zeroing technique benefit the OPA335AIDBVT?
The auto-zeroing technique provides very low offset voltage and near zero drift over time and temperature, enhancing the amplifier's precision and stability.
