Overview
The INA132UA/2K5, produced by Texas Instruments, is a low-power, unity-gain differential amplifier. It consists of a precision operational amplifier combined with a precision resistor network. The on-chip resistors are laser trimmed to ensure accurate gain and high common-mode rejection. This amplifier is designed to operate on a wide range of supply voltages, making it versatile for various applications. It is available in an SO-8 surface-mount package and operates over the industrial temperature range of –40°C to +85°C.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | Single Supply | 2.7V | - | 36V | V |
| Supply Voltage | Dual Supplies | ±1.35V | - | ±18V | V |
| Gain Error | - | - | - | ±0.075% | % |
| Nonlinearity | - | - | - | 0.001% | % |
| Common-Mode Rejection Ratio (CMRR) | VCM = 0V to 8V, RS = 0Ω | 76dB | 90dB | - | dB |
| Quiescent Current (IQ) | VIN = 0V | ±175µA | - | ±230µA | µA |
| Offset Voltage (VOS) | - | ±150µV | - | ±500µV | µV |
| Bandwidth | - | - | - | 300kHz | kHz |
| Operating Temperature | - | - | - | –40°C to +85°C | °C |
Key Features
- Wide Supply Range: Operates on single supply from 2.7V to 36V or dual supplies from ±1.35V to ±18V.
- DC Precision Performance: Low gain error (±0.075% maximum), low nonlinearity (0.001% maximum), and high common-mode rejection ratio (90dB typical).
- Low Quiescent Current: 175µA, making it suitable for low-power applications.
- Precision Resistor Network: On-chip resistors are laser trimmed for accurate gain and high common-mode rejection.
- Industrial Temperature Range: Operates from –40°C to +85°C.
Applications
- Optical Modules: Suitable for applications requiring precise signal amplification in optical systems.
- Building Security Gateways: Used in security systems for accurate signal processing.
- AC Analog Input Modules: Ideal for analog input modules in various industrial and commercial applications.
- Mass Spectrometer: Utilized in scientific instruments for precise signal amplification.
- CPU (PLC Controller): Used in control systems for accurate signal processing.
- Lab and Field Instrumentation: Suitable for various laboratory and field instrumentation applications requiring high precision.
Q & A
- What is the supply voltage range for the INA132UA/2K5?
The INA132UA/2K5 operates on a single supply from 2.7V to 36V or dual supplies from ±1.35V to ±18V.
- What is the typical common-mode rejection ratio (CMRR) of the INA132UA/2K5?
The typical CMRR is 90dB.
- What is the quiescent current of the INA132UA/2K5?
The quiescent current is typically 175µA.
- What is the bandwidth of the INA132UA/2K5?
The bandwidth is 300kHz.
- What is the operating temperature range of the INA132UA/2K5?
The operating temperature range is from –40°C to +85°C.
- What type of package is the INA132UA/2K5 available in?
The INA132UA/2K5 is available in an SO-8 surface-mount package.
- What are some common applications of the INA132UA/2K5?
Common applications include optical modules, building security gateways, AC analog input modules, mass spectrometers, CPU (PLC Controller), and lab and field instrumentation.
- How accurate is the gain of the INA132UA/2K5?
The gain error is ±0.075% maximum, ensuring high accuracy.
- What is the input offset voltage of the INA132UA/2K5?
The input offset voltage is ±150µV to ±500µV.
- Is the INA132UA/2K5 suitable for low-power applications?
Yes, it is suitable due to its low quiescent current of 175µA.
