Overview
The OPA2251UA/2K5G4 is a dual-channel, low-offset voltage operational amplifier manufactured by Texas Instruments. Designed for single-supply micropower applications, this operational amplifier is part of the OPA2251 series and is widely used in precision analog circuits. Its key market positioning is in applications requiring low power consumption, high precision, and reliable performance. The OPA2251UA/2K5G4 is particularly suitable for battery-powered devices, sensor signal conditioning, and portable instrumentation. Its unique selling points include low input offset voltage, low quiescent current, and rail-to-rail output, making it a competitive choice for modern electronic designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Amplifier Type | Low Offset Voltage Amplifier | - | - |
| Channels | 2 | - | - |
| Gain Bandwidth Product (GBP) | 35 | kHz | - |
| Slew Rate (SR) | 0.01 | V/µs | - |
| Common Mode Rejection Ratio (CMRR) | 100 | dB | - |
| Input Bias Current (Ib) | 20 | nA | - |
| Input Offset Voltage (Vos) | 100 | µV | - |
| Supply Voltage (Max) | 36 | V | - |
| Supply Voltage (Min) | 2.7 | V | - |
| Quiescent Current | 76 | µA | - |
| Operating Temperature Range | -40 to +85 | °C | - |
| Shutdown | No | - | - |
| Package | SOIC-8 | - | Reel packaging |
Key Features
- Low input offset voltage for high precision applications.
- Rail-to-rail output for maximum dynamic range.
- Low quiescent current, ideal for battery-powered devices.
- Wide supply voltage range (2.7V to 36V) for versatile use.
- High common mode rejection ratio (CMRR) for noise reduction.
Applications
The OPA2251UA/2K5G4 is widely used in various fields, including industrial automation, consumer electronics, and portable instrumentation. In industrial automation, it is employed for signal conditioning and sensor interfacing due to its precision and low power consumption. In consumer electronics, it is used in audio processing and portable devices. Additionally, its rail-to-rail output and low quiescent current make it suitable for medical devices and battery-powered applications.
Q & A
What is the gain bandwidth product of the OPA2251UA/2K5G4?
The gain bandwidth product is 35 kHz.
Does the OPA2251UA/2K5G4 support shutdown functionality?
No, it does not support shutdown functionality.
What is the input offset voltage of this operational amplifier?
The input offset voltage is 100 µV.
What is the operating temperature range?
The operating temperature range is -40°C to +85°C.
What is the supply voltage range?
The supply voltage range is 2.7V to 36V.
Is the OPA2251UA/2K5G4 suitable for battery-powered devices?
Yes, its low quiescent current makes it ideal for battery-powered applications.
What is the package type of this operational amplifier?
It comes in an SOIC-8 package.
What is the slew rate of the OPA2251UA/2K5G4?
The slew rate is 0.01 V/µs.
Can this operational amplifier be used in audio applications?
Yes, its rail-to-rail output and low noise make it suitable for audio processing.
What is the input bias current of the OPA2251UA/2K5G4?
The input bias current is 20 nA.
