Overview
The INA132U/2K5G4, produced by Texas Instruments, is a low-power, unity-gain differential amplifier. It consists of a precision op amp integrated with a precision resistor network. The on-chip resistors are laser trimmed to ensure accurate gain and high common-mode rejection. This amplifier operates over a wide supply range, supporting both single-supply (2.7V to 36V) and dual-supply (±1.35V to ±18V) configurations. The INA132 is particularly suited for applications requiring high DC precision performance and low power consumption, making it an excellent choice for various industrial and instrumentation uses.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (Single) | 2.7V | - | 36V | V |
| Supply Voltage (Dual) | ±1.35V | - | ±18V | V |
| Input Offset Voltage | ±75µV | - | ±250µV | µV |
| Gain Error | ±0.01% | - | ±0.075% | % |
| Nonlinearity | ±0.0001% | - | ±0.001% | % of FSR |
| Common-Mode Rejection Ratio (CMRR) | 76dB | 90dB | - | dB |
| Quiescent Current | ±175µA | - | ±230µA | µA |
| Operating Temperature Range | -40°C | - | +85°C | °C |
| Package Type | - | - | SO-8 (Surface Mount) | - |
Key Features
- Wide Supply Range: Supports single supply from 2.7V to 36V and 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 (90dB typical).
- Low Power Consumption: Quiescent current of 175µA.
- Precision Resistor Network: On-chip resistors are laser trimmed for accurate gain and high common-mode rejection.
- High Common-Mode Range: The internal op amp common-mode range extends to the negative supply, making it suitable for single-supply applications.
- Capacitive Load Drive Capability: Can drive large capacitive loads.
Applications
- Optical Modules: Suitable for optical communication systems.
- Building Security Gateways: Used in security systems for signal conditioning.
- AC Analog Input Modules: For conditioning AC analog signals.
- Mass Spectrometer: In scientific instrumentation for precise signal amplification.
- CPU (PLC Controller): In industrial control systems.
- Lab and Field Instrumentation: For various measurement and testing equipment.
Q & A
- What is the supply voltage range for the INA132U/2K5G4?
The INA132U/2K5G4 operates on a single supply from 2.7V to 36V and dual supplies from ±1.35V to ±18V.
- What is the typical common-mode rejection ratio (CMRR) of the INA132U/2K5G4?
The typical CMRR is 90dB.
- What is the quiescent current of the INA132U/2K5G4?
The quiescent current is typically 175µA.
- What type of package is the INA132U/2K5G4 available in?
The INA132U/2K5G4 is available in an SO-8 surface-mount package.
- What is the operating temperature range for the INA132U/2K5G4?
The operating temperature range is from -40°C to +85°C.
- Can the INA132U/2K5G4 drive large capacitive loads?
- What are some common applications of the INA132U/2K5G4?
Common applications include optical modules, building security gateways, AC analog input modules, mass spectrometers, CPU (PLC controllers), and lab and field instrumentation.
- How accurate is the gain of the INA132U/2K5G4?
The gain error is typically ±0.075%.
- Is the INA132U/2K5G4 suitable for single-supply applications?
- Can the offset voltage of the INA132U/2K5G4 be trimmed?
