Overview
The INA2132U/2K5G4, produced by Texas Instruments, is a dual low-power, unity-gain difference amplifier. It offers excellent value at a very low cost, making it a versatile component for various applications. Each channel of the INA2132 consists of a precision op-amp with a laser-trimmed precision resistor network, ensuring accurate gain and high common-mode rejection. The amplifier operates over a wide power supply range, from single supply (2.7V to 36V) to dual supplies (±1.35V to ±18V), and is specified for operation over the extended industrial temperature range of –40°C to +85°C.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Quiescent Current (per amplifier) | ±155 | ±160 | ±185 | µA |
| Power Supply Range (Single Supply) | +2.7 | +36 | V | |
| Power Supply Range (Dual Supplies) | ±1.35 | ±18 | V | |
| Gain Error | ±0.05% | % | ||
| Nonlinearity | 0.001% | % | ||
| Common-Mode Rejection Ratio (CMRR) | 80 | 90 | 74 | dB |
| Small-Signal Bandwidth –3dB | 300 | kHz | ||
| Slew Rate (SR) | 0.1 | V/µs | ||
| Settling Time: 0.1% VO = 10V Step | 85 | µs | ||
| Temperature Range | –40 | +85 | °C |
Key Features
- Low quiescent current: 160µA per amplifier
- Wide power supply range: Single supply from 2.7V to 36V, dual supplies from ±1.35V to ±18V
- Low gain error: ±0.05% max
- Low nonlinearity: 0.001% max
- High CMRR: 90dB
- Highly versatile circuit
- Easy to use
- Available in SO-14 surface-mount package
- Operates over extended industrial temperature range: –40°C to +85°C
Applications
- Differential input amplifier
- Instrumentation amplifier building block
- Unity-gain inverting amplifier
- G = 1/2 amplifier
- G = 2 amplifier
- Summing amplifier
- Differential current receiver
- Voltage-controlled current source
- Battery-powered systems
- Ground loop eliminator
Q & A
- What is the INA2132U/2K5G4 used for? The INA2132U/2K5G4 is a dual low-power, unity-gain difference amplifier used in various applications such as differential input amplifiers, instrumentation amplifier building blocks, and more.
- What is the power supply range of the INA2132U/2K5G4? The INA2132U/2K5G4 operates from a single supply (2.7V to 36V) or dual supplies (±1.35V to ±18V).
- What is the quiescent current of the INA2132U/2K5G4? The quiescent current is ±155µA to ±185µA per amplifier.
- What is the common-mode rejection ratio (CMRR) of the INA2132U/2K5G4? The CMRR is 90dB.
- What is the small-signal bandwidth of the INA2132U/2K5G4? The small-signal bandwidth is 300kHz.
- What is the slew rate of the INA2132U/2K5G4? The slew rate is 0.1V/µs.
- What is the settling time for a 0.1% VO = 10V step? The settling time is 85µs.
- What is the temperature range for the INA2132U/2K5G4? The temperature range is –40°C to +85°C.
- In what package is the INA2132U/2K5G4 available? The INA2132U/2K5G4 is available in the SO-14 surface-mount package.
- Is the INA2132U/2K5G4 stable with capacitive loads? Yes, it is stable with a 10nF load.
