Overview
The OPA347NA/3K is a precision operational amplifier (op-amp) manufactured by Texas Instruments. Designed for low-power and high-precision applications, this op-amp is part of the OPA347 series, which is widely used in portable and battery-powered devices. Its market positioning targets industries requiring reliable performance in compact and energy-efficient designs, such as consumer electronics, medical devices, and industrial automation. The OPA347NA/3K stands out for its low quiescent current, rail-to-rail input/output operation, and excellent accuracy, making it a competitive choice for precision analog circuits.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage Range | 2.5 to 5.5 | V | Single supply |
| Quiescent Current | 60 | µA | Typical |
| Input Offset Voltage | 0.5 | mV | Maximum |
| Gain Bandwidth Product | 1 | MHz | Typical |
| Slew Rate | 0.6 | V/µs | Typical |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOT-23-5 | 3K Reel | |
| Input Common Mode Range | Rail-to-Rail | ||
| Output Swing | Rail-to-Rail | ||
| Number of Channels | 1 |
Key Features
- Low Quiescent Current: Ensures minimal power consumption, ideal for battery-powered devices.
- Rail-to-Rail Input/Output: Allows operation with signals close to the supply rails, maximizing dynamic range.
- High Precision: Low input offset voltage and drift ensure accurate signal processing.
- Compact Package: SOT-23-5 package enables use in space-constrained applications.
- Wide Supply Voltage Range: Supports operation from 2.5V to 5.5V, suitable for various power sources.
Applications
The OPA347NA/3K is widely used in applications requiring precision and low power consumption. Key application areas include:
- Portable Medical Devices: Such as blood glucose meters and wearable health monitors, where accuracy and battery life are critical.
- Consumer Electronics: Including smartphones, tablets, and portable audio devices, for signal conditioning and amplification.
- Industrial Automation: For sensor signal conditioning and control systems in harsh environments.
- Battery-Powered Instruments: Such as handheld test equipment and data loggers, where low power consumption is essential.
Q & A
1. What is the typical quiescent current of the OPA347NA/3K?
The typical quiescent current is 60 µA.
2. Can the OPA347NA/3K operate with a single supply voltage?
Yes, it operates with a single supply voltage ranging from 2.5V to 5.5V.
3. Is the OPA347NA/3K suitable for rail-to-rail operation?
Yes, it supports rail-to-rail input and output operation.
4. What is the maximum input offset voltage?
The maximum input offset voltage is 0.5 mV.
5. What is the gain bandwidth product of this op-amp?
The gain bandwidth product is typically 1 MHz.
6. What package does the OPA347NA/3K come in?
It is available in a SOT-23-5 package.
7. Is the OPA347NA/3K suitable for high-temperature environments?
Yes, it operates in a temperature range of -40°C to 125°C.
8. How many channels does the OPA347NA/3K have?
It is a single-channel operational amplifier.
9. What is the typical slew rate of the OPA347NA/3K?
The typical slew rate is 0.6 V/µs.
10. What are the primary applications of the OPA347NA/3K?
It is used in portable medical devices, consumer electronics, industrial automation, and battery-powered instruments.
