Overview
The OPA335AIDBVRG4 from Texas Instruments is a single, zero-drift, CMOS operational amplifier designed for high precision and low noise applications. This device utilizes auto-zeroing techniques to achieve very low offset voltage and drift, making it ideal for instrumentation, medical devices, and other applications requiring high accuracy.
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 |
| Input Offset Current (IOS) | ±120 | ±400 | ±400 | pA | |
| Power Supply Range | 2.7 | 5.5 | V | ||
| Quiescent Current (IQ) | IO = 0 | 285 | 350 | 450 | µA |
| Operating Temperature Range | -40 | 125 | °C | ||
| Storage Temperature Range | -65 | 150 | °C |
Key Features
- Zero-Drift Technology: Achieves very low offset voltage and drift, ensuring high precision over time and temperature.
- Low Input Bias Current: Typically 200 pA, reducing the impact of input bias on the circuit.
- High Common-Mode Rejection Ratio (CMRR): Ensures minimal interference from common-mode signals.
- Rail-to-Rail Output: Allows the output voltage to swing close to the supply rails, maximizing dynamic range.
- Low Noise: High signal-to-noise ratio, making it suitable for sensitive applications.
- Shutdown Capability: Can be shut down to reduce power consumption, with a typical shutdown current of 2 µA.
Applications
The OPA335AIDBVRG4 is suitable for a variety of high-precision applications, including:
- Instrumentation: Precision measurement instruments, data acquisition systems, and sensor interfaces.
- Medical Devices: Medical instrumentation, patient monitoring systems, and diagnostic equipment.
- Aerospace and Defense: High-reliability systems requiring low noise and high accuracy.
- Industrial Automation: Control systems, process monitoring, and precision control circuits.
Q & A
- What is the typical input offset voltage of the OPA335AIDBVRG4?
The typical input offset voltage is 5 µV. - What is the operating temperature range of the OPA335AIDBVRG4?
The operating temperature range is from -40°C to +125°C. - What is the quiescent current of the OPA335AIDBVRG4?
The quiescent current is typically 350 µA. - Does the OPA335AIDBVRG4 have shutdown capability?
Yes, it has a shutdown feature with a typical shutdown current of 2 µA. - What is the common-mode rejection ratio (CMRR) of the OPA335AIDBVRG4?
While the exact CMRR is not specified here, zero-drift amplifiers generally have high CMRR. - What is the input bias current of the OPA335AIDBVRG4?
The input bias current is typically ±200 pA. - What is the power supply range for the OPA335AIDBVRG4?
The power supply range is from 2.7 V to 5.5 V. - Is the OPA335AIDBVRG4 available in different packages?
Yes, it is available in various packages including SOT23-5, SOT23-6, MSOP-8, and SO-8. - What are some typical applications for the OPA335AIDBVRG4?
Typical applications include instrumentation, medical devices, aerospace and defense, and industrial automation. - Does the OPA335AIDBVRG4 have rail-to-rail output capability?
Yes, it has rail-to-rail output capability, allowing the output voltage to swing close to the supply rails.
