Overview
The OPA4234UA from Texas Instruments is a low-power, precision operational amplifier designed for single-supply, low-voltage applications. This quad op-amp is part of the OPA234 series, known for its low quiescent current and high precision. It is ideal for a variety of applications requiring low power consumption and high accuracy.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VCM = 1.35V | ±70 | ±250 | ±500 | µV |
| Input Bias Current (IB) | VCM = 1.35V | –12 | –25 | –50 | nA |
| Input Voltage Noise Density (vn) | f = 1kHz | 25 | nV/√Hz | ||
| Gain-Bandwidth Product (GBW) | CL = 100pF | 0.35 | MHz | ||
| Slew Rate (SR) | 0.2 | V/µs | |||
| Supply Voltage Range | ±1.35V to ±18V | V | |||
| Operating Temperature Range | –40°C to +85°C | °C | |||
| Quiescent Current (per amplifier) | IO = 0 | ±275 | ±350 | µA |
Key Features
- Low Power Consumption: The OPA4234UA features low quiescent current, making it suitable for battery-powered and power-sensitive applications.
- Precision Performance: High precision with low input offset voltage and low input bias current.
- Single-Supply Operation: Operates from a single supply voltage ranging from 2.7V to 36V.
- High Gain-Bandwidth Product: A GBW of 0.35 MHz ensures good frequency response.
- Low Slew Rate: A slew rate of 0.2 V/µs is suitable for many low-frequency applications.
- Quad Amplifier Configuration: Four independent op-amps in a single package, ideal for space-saving designs.
- RoHS Compliant: Meets RoHS standards, ensuring environmental compliance.
Applications
- Portable Electronics: Suitable for battery-powered devices due to its low power consumption.
- Medical Devices: Used in medical equipment requiring high precision and low noise.
- Industrial Automation: Ideal for control systems and monitoring applications in industrial settings.
- Aerospace and Defense: Used in various military and aerospace applications where precision and reliability are crucial.
- Consumer Electronics: Found in audio equipment, sensors, and other consumer devices requiring low-power op-amps.
Q & A
- What is the input offset voltage of the OPA4234UA?
The input offset voltage (VOS) of the OPA4234UA is typically ±250 µV with a maximum of ±500 µV at VCM = 1.35V.
- What is the supply voltage range for the OPA4234UA?
The OPA4234UA operates from a supply voltage range of ±1.35V to ±18V.
- What is the gain-bandwidth product (GBW) of the OPA4234UA?
The gain-bandwidth product (GBW) of the OPA4234UA is 0.35 MHz.
- What is the slew rate of the OPA4234UA?
The slew rate (SR) of the OPA4234UA is 0.2 V/µs.
- Is the OPA4234UA RoHS compliant?
- What is the operating temperature range of the OPA4234UA?
- How many amplifiers are included in the OPA4234UA package?
- What is the typical quiescent current per amplifier for the OPA4234UA?
- What is the common-mode rejection ratio (CMRR) of the OPA4234UA?
- What is the maximum short-circuit current of the OPA4234UA?
