Overview
The OPA2251UA, manufactured by Texas Instruments, is a high-performance operational amplifier (op-amp) designed for precision applications. This dual-channel op-amp is part of the OPA2251 series and is well-suited for use in low-power, single-supply systems. Its rail-to-rail input and output capabilities make it ideal for a wide range of electronic designs, particularly in industrial, automotive, and consumer electronics. The OPA2251UA stands out for its low offset voltage, low noise, and high CMRR, making it a competitive choice for signal conditioning and sensor interfacing applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage (Max) | 36 | V | |
| Supply Voltage (Min) | 2.7 | V | |
| Channels | 2 | Dual-channel | |
| Gain Bandwidth Product | 35 | kHz | |
| Slew Rate | 0.01 | V/µs | |
| CMRR | 100 to 124 | dB | |
| Input Bias Current | 20 | nA | |
| Input Offset Voltage | 0.25 | mV | |
| Operating Temperature | -40 to +85 | °C | |
| Package | SOIC-8 |
Key Features
- Rail-to-rail input and output for wide dynamic range.
- Low offset voltage and low noise for precision applications.
- High CMRR ensures excellent noise rejection.
- Low power consumption, ideal for battery-operated devices.
- Stable operation with high capacitive loads.
Applications
The OPA2251UA is widely used in various applications, including industrial automation, automotive electronics, and consumer electronics. Its precision and low power consumption make it suitable for sensor signal conditioning, data acquisition systems, and portable medical devices. Additionally, its rail-to-rail capabilities enable its use in low-voltage systems, such as battery-powered equipment and handheld devices.
Q & A
1. What is the operating voltage range of the OPA2251UA?
The OPA2251UA operates from a minimum supply voltage of 2.7V to a maximum of 36V.
2. Does the OPA2251UA support rail-to-rail operation?
Yes, the OPA2251UA features rail-to-rail input and output capabilities.
3. What is the gain bandwidth product of the OPA2251UA?
The gain bandwidth product is 35 kHz.
4. Is the OPA2251UA suitable for low-power applications?
Yes, it has a low operating current of 27 µA, making it ideal for low-power designs.
5. What is the typical input offset voltage?
The typical input offset voltage is 0.25 mV.
6. Can the OPA2251UA operate in harsh environments?
Yes, it has an operating temperature range of -40°C to +85°C.
7. What package does the OPA2251UA come in?
It is available in an SOIC-8 package.
8. Does the OPA2251UA have a shutdown feature?
No, the OPA2251UA does not include a shutdown feature.
9. What is the CMRR of the OPA2251UA?
The CMRR ranges from 100 dB to 124 dB.
10. Is the OPA2251UA RoHS compliant?
Yes, the OPA2251UA is RoHS compliant.
