Overview
The OPA335AIDBVR is a high-precision, single-channel CMOS operational amplifier produced by Texas Instruments. This device utilizes auto-zeroing techniques to achieve very low offset voltage and near zero drift over time and temperature. It is designed for low-voltage, single-supply operation and is available in a compact SOT23-5 package, making it ideal for space-constrained applications.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VCM = VS/2 | 1 | 5 | 5 | µV |
| Offset Voltage Drift (dVOS/dT) | - | ±0.02 | ±0.05 | ±0.05 | µV/°C |
| Input Bias Current (IB) | VCM = VS/2 | ±70 | ±200 | ±200 | pA |
| Quiescent Current (IQ) | IO = 0 | 285 | 350 | 450 | µA |
| Operating Voltage Range | - | 2.7 | - | 5.5 | V |
| Temperature Range | - | -40 | - | 125 | °C |
| Package Type | - | - | - | SOT23-5 | - |
Key Features
- Low Offset Voltage: Maximum of 5µV, ensuring high precision in applications.
- Zero Drift: Near zero drift over time and temperature, with a maximum drift of 0.05 µV/°C.
- Low Quiescent Current: 285 µA, making it suitable for battery-powered devices.
- Single-Supply Operation: Can operate with single supplies as low as +2.7V and up to +5.5V.
- High Input Impedance and Rail-to-Rail Output Swing: Enhances the amplifier's performance in various applications.
- Compact Packaging: Available in SOT23-5 package, ideal for space-constrained designs.
Applications
- Transducer Applications: Suitable for precision measurement and signal conditioning.
- Temperature Measurement: High precision and low drift make it ideal for temperature sensing applications.
- Electronic Scales: Used in precision weighing and measurement instruments.
- Medical Instrumentation: Applicable in medical devices requiring high accuracy and low noise.
- Battery-Powered Instruments: Low quiescent current makes it suitable for portable and battery-powered devices).
- Handheld Test Equipment: Ideal for compact, high-precision test and measurement tools).
Q & A
- What is the maximum input offset voltage of the OPA335AIDBVR?
The maximum input offset voltage is 5µV).
- What is the typical quiescent current of the OPA335AIDBVR?
The typical quiescent current is 350µA).
- What is the operating voltage range of the OPA335AIDBVR?
The operating voltage range is from 2.7V to 5.5V).
- What is the temperature range for the OPA335AIDBVR?
The specified temperature range is from -40°C to +125°C).
- What package type is the OPA335AIDBVR available in?
The OPA335AIDBVR is available in the SOT23-5 package).
- Does the OPA335AIDBVR have a shutdown feature?
No, the OPA335AIDBVR does not have a shutdown feature. This feature is available in the OPA334 series).
- What are some common applications of the OPA335AIDBVR?
Common applications include transducer applications, temperature measurement, electronic scales, medical instrumentation, and battery-powered instruments).
- What is the input bias current of the OPA335AIDBVR?
The input bias current is typically ±200 pA).
- How does the OPA335AIDBVR handle capacitive loads?
The OPA335AIDBVR can drive capacitive loads, and the typical characteristics are detailed in the datasheet).
- What is the long-term stability of the OPA335AIDBVR's offset voltage?
The long-term stability is demonstrated by a 500-hour life test at 150°C, showing a variation approximately equal to the measurement repeatability of 1µV).
