Overview
The OPA2234UA/2K5G4 is a low-power, precision single-supply operational amplifier produced by Texas Instruments. This device is part of the OPA2234 series, known for its high common-mode rejection ratio (CMRR) and low offset voltage. The OPA2234UA/2K5G4 is designed for applications requiring high accuracy and low power consumption, making it suitable for a variety of electronic systems.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Units |
|---|---|---|---|---|
| Architecture | Bipolar | |||
| CMRR (Typical) | 106 | 86 | dB | |
| GBW (Typical) | 0.35 | MHz | ||
| Input Bias Current (Max) | 30,000 | pA | ||
| Iq per channel (Typical) | 0.25 | 0.3 | mA | |
| Number of Channels | 2 | |||
| Offset Drift (Typical) | 0.5 | µV/°C | ||
| Operating Temperature Range | -40 | 85 | °C | |
| Output Current (Typical) | 11 | mA | ||
| Package Group | SOIC | |||
| Rail-to-Rail | In to V- Out | |||
| Slew Rate (Typical) | 0.2 | V/µs | ||
| Total Supply Voltage (Min/Max) | 2.7 / 36 | V | ||
| Vn at 1kHz (Typical) | 25 | nV/rtHz | ||
| Vos (Offset Voltage @ 25°C) (Max) | 0.1 | mV |
Key Features
- Low Power Consumption: The OPA2234UA/2K5G4 operates with a typical quiescent current of 0.25 mA per channel, making it suitable for battery-powered devices and other low-power applications.
- High CMRR: With a typical common-mode rejection ratio (CMRR) of 106 dB, this amplifier provides excellent rejection of common-mode signals.
- Precision Offset Voltage: The device features a low offset voltage of 0.1 mV (maximum) and a low offset drift of 0.5 µV/°C (typical), ensuring high accuracy in various applications.
- Wide Operating Temperature Range: The OPA2234UA/2K5G4 operates over a temperature range of -40°C to 85°C, making it versatile for use in diverse environmental conditions.
- Rail-to-Rail Output: The amplifier provides rail-to-rail output capability, allowing it to drive loads connected to the supply rails.
- Compact Packaging: Available in an 8-pin SOIC package, this device is suitable for space-constrained designs.
Applications
- Medical Devices: The high precision and low noise characteristics make the OPA2234UA/2K5G4 suitable for medical equipment such as ECG and EEG monitors.
- Industrial Automation: This amplifier can be used in various industrial control systems where high accuracy and reliability are required.
- Aerospace and Defense: The wide operating temperature range and high CMRR make it a good choice for aerospace and defense applications.
- Consumer Electronics: It can be used in audio equipment, sensors, and other consumer electronic devices requiring low power and high precision.
- Automotive Systems: The device is suitable for automotive applications due to its robust performance over a wide temperature range.
Q & A
- What is the typical quiescent current per channel for the OPA2234UA/2K5G4?
The typical quiescent current per channel is 0.25 mA.
- What is the common-mode rejection ratio (CMRR) of the OPA2234UA/2K5G4?
The typical CMRR is 106 dB.
- What is the operating temperature range of the OPA2234UA/2K5G4?
The operating temperature range is -40°C to 85°C.
- What is the maximum offset voltage at 25°C for the OPA2234UA/2K5G4?
The maximum offset voltage at 25°C is 0.1 mV.
- What is the gain-bandwidth product (GBW) of the OPA2234UA/2K5G4?
The typical GBW is 0.35 MHz.
- What is the slew rate of the OPA2234UA/2K5G4?
The typical slew rate is 0.2 V/µs.
- What is the output current capability of the OPA2234UA/2K5G4?
The typical output current is 11 mA.
- Is the OPA2234UA/2K5G4 RoHS compliant?
Yes, the OPA2234UA/2K5G4 is RoHS compliant.
- What package type is the OPA2234UA/2K5G4 available in?
The device is available in an 8-pin SOIC package.
- Is the OPA2234UA/2K5G4 still in production?
No, the OPA2234UA/2K5G4 is obsolete and no longer manufactured.
