Overview
The OPA4277PA, manufactured by Texas Instruments, is a high-precision operational amplifier designed for applications requiring exceptional accuracy and stability. This four-channel amplifier is part of the OPA4277 series, known for its low offset voltage, low noise, and high common-mode rejection ratio (CMRR). It is widely used in industrial, automotive, and instrumentation applications where precision and reliability are critical. The OPA4277PA is particularly suitable for analog signal conditioning, data acquisition, and sensor interfacing, making it a preferred choice for engineers and designers seeking robust performance in demanding environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Product Category | Precision Amplifier | - | - |
| Series | OPA4277 | - | - |
| Number of Channels | 4 | Channel | - |
| Gain Bandwidth Product | 1 | MHz | - |
| Slew Rate | 0.8 | V/µs | - |
| Common Mode Rejection Ratio (CMRR) | 140 | dB | - |
| Output Current per Channel | 35 | mA | - |
| Input Bias Current | 500 | pA | - |
| Input Offset Voltage | 20 | µV | - |
| Input Voltage Noise Density | 8 | nV/√Hz | - |
| Supply Current | 790 | µA | - |
| Shutdown | No | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | PDIP-14 | - | - |
| Amplifier Type | Low Offset Amplifier | - | - |
| Supply Voltage - Max | 36 | V | - |
| Supply Voltage - Min | 4 | V | - |
| Operating Temperature Range | -40 to +85 | °C | - |
Key Features
- Four-channel design for multi-signal processing.
- Low input offset voltage of 20 µV ensures high accuracy.
- High CMRR of 140 dB minimizes noise interference.
- Wide supply voltage range (4 V to 36 V) for versatile applications.
- Low noise performance with 8 nV/√Hz input voltage noise density.
- Rail-to-rail input and output for maximum signal swing.
- No shutdown feature, ensuring continuous operation.
Applications
The OPA4277PA is ideal for precision applications such as analog input modules, sensor signal conditioning, and data acquisition systems. Its low noise and high accuracy make it suitable for industrial automation, medical instrumentation, and automotive electronics. Additionally, it is used in laboratory equipment, temperature transmitters, and pressure transducers, where reliable and stable performance is essential.
Q & A
1. What is the gain bandwidth product of the OPA4277PA?
The gain bandwidth product is 1 MHz.
2. Does the OPA4277PA support shutdown functionality?
No, the OPA4277PA does not have a shutdown feature.
3. What is the input offset voltage of the OPA4277PA?
The input offset voltage is 20 µV.
4. What is the operating temperature range of the OPA4277PA?
The operating temperature range is -40°C to +85°C.
5. How many channels does the OPA4277PA have?
It has four channels.
6. What is the supply voltage range for the OPA4277PA?
The supply voltage range is 4 V to 36 V.
7. What is the input voltage noise density of the OPA4277PA?
The input voltage noise density is 8 nV/√Hz.
8. What is the common-mode rejection ratio (CMRR) of the OPA4277PA?
The CMRR is 140 dB.
9. What is the output current per channel of the OPA4277PA?
The output current per channel is 35 mA.
10. What is the package type of the OPA4277PA?
The package type is PDIP-14.
