Overview
The OPA131UJ/2K5, produced by Texas Instruments, is part of the OPAx131 series of FET-input operational amplifiers. These amplifiers are known for their high performance at a low cost, making them a cost-effective option for various design needs. The OPA131UJ/2K5 is a single-channel version, available in an 8-pin SOIC package, which is industry-standard and facilitates easy integration into existing designs.
The OPA131 series offers excellent general-purpose performance, including low offset voltage, low drift, and good dynamic characteristics. This makes the OPA131UJ/2K5 suitable for a wide range of applications requiring precision and reliability.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | ±0.2 | ±0.75 | mV | ||
| Input Offset Voltage Drift (dVOS/dT) | TA = –40°C to +85°C | ±2 | ±10 | μV/°C | |
| Power-Supply Rejection Ratio (PSRR) | 9V ≤ VS ≤ 36V | ±50 | ±100 | μV/V | |
| Input Bias Current (IB) | ±5 | ±50 | pA | ||
| Slew Rate | 10 | V/μs | |||
| Gain-Bandwidth Product | 4 | MHz | |||
| Operating Voltage Range | ±4.5 | ±18 | V | ||
| Quiescent Current (per amplifier) | IO = 0 | ±1.5 | ±2 | mA | |
| Operating Temperature Range | –55 | +125 | °C | ||
| Thermal Resistance, θJA | SO-8 | 150 | °C/W |
Key Features
- FET Input: Low input bias current (IB = 50pA max)
- Low Offset Voltage: Maximum offset voltage of 750μV
- Wide Supply Range: Operates from ±4.5V to ±18V
- High Slew Rate: 10V/μs
- Wide Bandwidth: 4MHz gain-bandwidth product
- Excellent Capacitive Load Drive: Capable of driving capacitive loads effectively
- Single, Dual, and Quad Versions: Available in various configurations to suit different design needs
Applications
- Data Acquisition (DAQ): Suitable for precision data acquisition systems
- Flow Transmitter: Used in flow measurement and control systems
- Lab and Field Instrumentation: Ideal for laboratory and field instruments requiring high accuracy
- Electrocardiogram (ECG): Can be used in medical devices for ECG monitoring
Q & A
- What is the input bias current of the OPA131UJ/2K5?
The input bias current is typically ±50pA.
- What is the maximum offset voltage of the OPA131UJ/2K5?
The maximum offset voltage is 750μV.
- What is the operating voltage range of the OPA131UJ/2K5?
The operating voltage range is from ±4.5V to ±18V.
- What is the slew rate of the OPA131UJ/2K5?
The slew rate is 10V/μs.
- What is the gain-bandwidth product of the OPA131UJ/2K5?
The gain-bandwidth product is 4MHz.
- What are the typical applications of the OPA131UJ/2K5?
Typical applications include data acquisition, flow transmitters, lab and field instrumentation, and electrocardiogram (ECG) systems.
- What is the thermal resistance (θJA) of the OPA131UJ/2K5 in an SO-8 package?
The thermal resistance (θJA) is 150°C/W.
- What is the operating temperature range of the OPA131UJ/2K5?
The operating temperature range is from –55°C to +125°C.
- What is the quiescent current per amplifier for the OPA131UJ/2K5?
The quiescent current per amplifier is typically ±1.5mA to ±2mA.
- Is the OPA131UJ/2K5 suitable for capacitive loads?
