Overview
The OPA2347EA/3K is a high-performance, dual-channel general-purpose operational amplifier developed by Texas Instruments. This microPower, rail-to-rail operational amplifier is designed for applications requiring precision and versatility in analog signal processing. It is available in a compact SOT-23-8 surface-mount package, making it ideal for space-constrained and low-power applications.
The amplifier operates with a flexible single or dual supply voltage range of 2.3V to 5.5V, providing significant circuit design flexibility. It is fully specified and ensured from –55°C to +125°C, making it suitable for demanding industrial, automotive, and portable electronics environments.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VS = 5.5V, VCM = (V–) + 0.8V | 2 | 6 | 7 | mV |
| Input Bias Current | At TA = +25°C | - | - | 0.5 pA | pA |
| Quiescent Current (IQ) | Per Channel | - | - | 20 µA | µA |
| Bandwidth | - | - | - | 350 kHz | kHz |
| Output Current | Per Channel | - | - | 17 mA | mA |
| Supply Voltage Range | - | 2.3 V | - | 5.5 V | V |
| Operating Temperature Range | - | -55°C | - | +125°C | °C |
Key Features
- Low Quiescent Current: 20µA per channel, making it suitable for battery-powered and portable applications.
- MicroSIZE Packages: Available in WCSP-8, SC70-5, SOT23-5, SOT23-8, and TSSOP-14 packages.
- High Speed/Power Ratio: Bandwidth of 350kHz.
- Rail-to-Rail Input and Output: Input range extends 200mV beyond the rails, and output range is within 5mV of the rails.
- Single or Dual Supply Operation: Flexible supply voltage range from 2.3V to 5.5V or ±1.15V to ±2.75V in dual supply mode.
- Low Input Bias Current: 0.5 pA, ensuring high precision in signal amplification.
- High Output Current: Up to 17mA per channel.
- Lead-Free and RoHS-Compliant: Ensures environmental responsibility and compatibility with modern manufacturing processes.
Applications
- Portable Equipment: Ideal for battery-powered devices due to its low power consumption.
- Battery-Powered Equipment: Suitable for applications where power efficiency is crucial.
- 2-Wire Transmitters: Used in various communication and control systems.
- Smoke and CO Detectors: Reliable performance in safety and monitoring systems.
- Instrumentation and Sensor Interfaces: Precision signal conditioning and amplification.
- Medical Devices: High precision and low noise make it suitable for medical equipment.
- Industrial Instrumentation and Automotive Electronics: Robust performance across a wide temperature range.
- Precision Measurement Systems: Ensures accurate and reliable signal processing.
Q & A
- What is the typical quiescent current of the OPA2347EA/3K?
The typical quiescent current is 20µA per channel.
- What are the available package types for the OPA2347EA/3K?
The OPA2347EA/3K is available in SOT-23-8 and WCSP-8 packages, among others.
- What is the bandwidth of the OPA2347EA/3K?
The bandwidth is 350kHz.
- Can the OPA2347EA/3K operate on a single or dual power supply?
Yes, it can operate on a single supply from 2.3V to 5.5V or on a dual supply from ±1.15V to ±2.75V.
- What is the input bias current of the OPA2347EA/3K?
The input bias current is 0.5 pA.
- What is the maximum output current per channel of the OPA2347EA/3K?
The maximum output current per channel is 17mA.
- What is the operating temperature range of the OPA2347EA/3K?
The operating temperature range is from –55°C to +125°C.
- Is the OPA2347EA/3K lead-free and RoHS-compliant?
Yes, it is lead-free and RoHS-compliant.
- What are some typical applications of the OPA2347EA/3K?
Typical applications include portable equipment, battery-powered devices, 2-wire transmitters, smoke and CO detectors, instrumentation, sensor interfaces, medical devices, industrial instrumentation, and automotive electronics.
- How does the rail-to-rail input and output capability benefit the OPA2347EA/3K?
The rail-to-rail input and output capability significantly increases the dynamic range, especially in low supply voltage applications, ensuring precise signal amplification and conditioning.
