Overview
The OPA241UA is a single-supply, micropower operational amplifier (op-amp) manufactured by Texas Instruments. Designed for precision applications, this op-amp is part of the OPA241 series, known for its low offset voltage and high common-mode rejection ratio (CMRR). It is optimized for battery-powered and portable devices, offering rail-to-rail input and output capabilities. The OPA241UA is housed in an SOIC-8 package, making it suitable for surface-mount technology (SMT) applications. Its key features include low power consumption, high capacitive load drive, and a wide operating voltage range, making it ideal for industrial, automotive, and consumer electronics.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Product Category | Operational Amplifiers | - | - |
| Package / Case | SOIC-8 | - | - |
| Supply Voltage - Max | 36 | V | - |
| Supply Voltage - Min | 2.7 | V | - |
| Number of Channels | 1 | Channel | - |
| Gain Bandwidth Product (GBP) | 35 | kHz | - |
| Slew Rate (SR) | 0.01 | V/µs | - |
| Common Mode Rejection Ratio (CMRR) | 100 to 124 | dB | - |
| Input Bias Current (Ib) | 20 | nA | - |
| Input Offset Voltage (Vos) | 0.25 | mV | - |
| Operating Supply Current | 27 | µA | - |
| Operating Temperature Range | -40 to +85 | °C | - |
| Input Type | Rail-to-Rail | - | - |
| Output Type | Rail-to-Rail | - | - |
| Power Supply Type | Single, Dual | - | - |
| Dual Supply Voltage | ±3 V, ±5 V, ±9 V | - | - |
| Input Voltage Noise Density (en) | 45 | nV/√Hz | - |
| Input Noise Current Density (In) | 0.04 | pA/√Hz | - |
| Power Supply Rejection Ratio (PSRR) | 110.46 | dB | - |
Key Features
- Low offset voltage (0.25 mV) for precision applications.
- Rail-to-rail input and output for maximum dynamic range.
- Low power consumption (27 µA operating supply current).
- High capacitive load drive capability.
- Wide operating voltage range (2.7 V to 36 V).
- High common-mode rejection ratio (CMRR) up to 124 dB.
- Stable operation in harsh environments (-40°C to +85°C).
Applications
The OPA241UA is widely used in various applications, including:
- Industrial Automation: Precision signal conditioning and sensor amplification.
- Automotive Electronics: Battery monitoring and control systems.
- Consumer Electronics: Portable devices and audio signal processing.
- Medical Devices: Low-power, high-precision instrumentation.
- Test and Measurement: Data acquisition and signal analysis.
Q & A
1. What is the operating voltage range of the OPA241UA?
The OPA241UA operates from a single supply voltage of 2.7 V to 36 V or a dual supply voltage of ±1.35 V to ±18 V.
2. Is the OPA241UA suitable for battery-powered devices?
Yes, its low power consumption and wide operating voltage range make it ideal for battery-powered applications.
3. What is the typical gain bandwidth product (GBP) of the OPA241UA?
The typical GBP is 35 kHz.
4. Does the OPA241UA support rail-to-rail operation?
Yes, it features rail-to-rail input and output capabilities.
5. What is the input offset voltage of the OPA241UA?
The maximum input offset voltage is 0.25 mV.
6. Can the OPA241UA drive capacitive loads?
Yes, it has a high capacitive load drive capability.
7. What is the common-mode rejection ratio (CMRR) of the OPA241UA?
The CMRR ranges from 100 dB to 124 dB.
8. Is the OPA241UA RoHS compliant?
Yes, it is RoHS compliant.
9. What is the package type of the OPA241UA?
It is available in an SOIC-8 package.
10. What are the typical applications of the OPA241UA?
Typical applications include industrial automation, automotive electronics, consumer electronics, medical devices, and test and measurement systems.
