Overview
The OPA2234UA/2K5 is a dual operational amplifier from Texas Instruments, part of the OPAx234 series. This device is designed for low-power, precision applications and is particularly suited for single-supply, low-voltage environments. The OPA2234UA/2K5 features a wide supply range, excellent phase margin, and high performance in demanding applications, including those with high load capacitance.
The device is available in an SO-8 surface-mount package and is specified for operation over a temperature range of –40°C to +85°C. It is known for its low quiescent current, high channel separation, and stable operation under various load conditions.
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 |
| Slew Rate (SR) | 0.2 | V/µs | |||
| Gain-Bandwidth Product (GBW) | CL = 100pF | 0.35 | MHz | ||
| Operating Voltage Range | +2.7 | +36 | V | ||
| Quiescent Current (IQ) | IO = 0 | 250 | 300 | µA | |
| Operating Temperature Range | -40 | +85 | °C | ||
| Package | SO-8 |
Key Features
- Wide supply range: Single supply from +2.7V to +36V, dual supply from ±1.35V to ±18V
- Low quiescent current: 250µA to 300µA per amplifier
- High channel separation: Ensures minimal crosstalk and interaction between channels
- Excellent phase margin: Ideal for demanding applications with high load capacitance
- Low input bias current: -15nA to -50nA
- Low input offset voltage: ±40µV to ±250µV
- High slew rate: 0.2V/µs
- Stable operation with capacitive loads: Up to 1000pF
Applications
- Audio circuits: Due to its low noise and distortion characteristics
- Medical devices: Where low power consumption and precision are critical
- Industrial control systems: For applications requiring high stability and low noise
- Consumer electronics: Such as audio equipment, where high fidelity is necessary
- Automotive systems: For applications that require operation over a wide temperature range
Q & A
- What is the operating temperature range of the OPA2234UA/2K5?
The operating temperature range is –40°C to +85°C.
- What is the typical input offset voltage of the OPA2234UA/2K5?
The typical input offset voltage is ±100µV.
- What is the slew rate of the OPA2234UA/2K5?
The slew rate is 0.2V/µs.
- What is the quiescent current per amplifier for the OPA2234UA/2K5?
The quiescent current per amplifier is 250µA to 300µA.
- What is the package type of the OPA2234UA/2K5?
The package type is SO-8 surface-mount.
- What is the gain-bandwidth product (GBW) of the OPA2234UA/2K5?
The gain-bandwidth product is 0.35MHz with a 100pF load capacitance.
- Can the OPA2234UA/2K5 operate with single or dual supplies?
Yes, it can operate with single supplies from +2.7V to +36V or dual supplies from ±1.35V to ±18V.
- What is the input bias current of the OPA2234UA/2K5?
The input bias current is -15nA to -50nA.
- Is the OPA2234UA/2K5 suitable for high load capacitance applications?
Yes, it is suitable for applications with high load capacitance due to its excellent phase margin.
- What are some common applications of the OPA2234UA/2K5?
Common applications include audio circuits, medical devices, industrial control systems, consumer electronics, and automotive systems.
