Overview
The OPA234UA-TI, manufactured by Texas Instruments, is a low-power, precision operational amplifier designed for single-supply, low-voltage applications. This op amp is part of the OPA234 series, which includes single, dual, and quad versions, offering maximum design flexibility. The OPA234UA-TI is ideal for portable and battery-powered applications due to its low quiescent current and high accuracy.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VCM = 2.5V | ±40 | ±100 | ±250 | µV |
| Input Bias Current (IB) | VCM = 1.35V | –15 | –30 | –50 | nA |
| Input Offset Current (IOS) | VCM = 1.35V | ±1 | ±5 | nA | |
| Quiescent Current (IQ) | VS = +5V | 250 | µA | ||
| Supply Voltage Range | +2.7V to +36V (single supply) | V | |||
| Supply Voltage Range | ±1.35V to ±18V (dual supply) | V | |||
| Bandwidth | 350kHz | ||||
| Slew Rate | 0.2V/µs | ||||
| Operating Temperature Range | –40°C to 125°C | °C | |||
| Package | 8-SOIC (0.154", 3.90mm Width) |
Key Features
- Low quiescent current: 250µA per amplifier, making it suitable for battery-powered and portable applications.
- Low input bias current: Maximum of 50nA.
- Low offset voltage: Maximum of 250µV.
- High common-mode rejection ratio (CMRR), power-supply rejection ratio (PSRR), and open-loop gain (AOL) for excellent accuracy.
- Single, dual, and quad versions available with identical specifications for design flexibility.
- Wide supply voltage range: Single supply from +2.7V to +36V and dual supply from ±1.35V to ±18V.
- Unity-gain stable and suitable for a wide range of general-purpose applications.
- RoHS compliant.
Applications
The OPA234UA-TI is suitable for a variety of applications, including:
- Portable and battery-powered devices due to its low power consumption.
- General-purpose analog circuits requiring high accuracy and low noise.
- Audio and signal processing applications where low distortion and high fidelity are necessary.
- Medical devices and instrumentation where precision and reliability are critical.
- Industrial control systems and automation where robust performance is required.
Q & A
- What is the typical quiescent current of the OPA234UA-TI?
The typical quiescent current is 250µA per amplifier.
- What is the maximum input offset voltage of the OPA234UA-TI?
The maximum input offset voltage is ±250µV.
- What is the bandwidth of the OPA234UA-TI?
The bandwidth is 350kHz.
- What is the slew rate of the OPA234UA-TI?
The slew rate is 0.2V/µs.
- What are the available package types for the OPA234UA-TI?
The OPA234UA-TI is available in an 8-SOIC package.
- Is the OPA234UA-TI RoHS compliant?
- What is the operating temperature range of the OPA234UA-TI?
The operating temperature range is –40°C to 125°C.
- Can the OPA234UA-TI operate on both single and dual supplies?
- What are some common applications for the OPA234UA-TI?
- How should the power-supply pins of the OPA234UA-TI be bypassed?
