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INA2128U from TI,TI,Texas Instruments

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INA2128U

Manufacturer: TI,TI, BB, TI/BB

Dual/ Low Power INSTRUMENTATION AMPLIFIER

Partnumber Manufacturer Quantity Availability
INA2128U TI,TI, BB, TI/BB 276 In Stock

Description and Introduction

Dual/ Low Power INSTRUMENTATION AMPLIFIER The INA2128U is a precision instrumentation amplifier manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Supply Voltage Range:** ±2.25V to ±18V  
- **Quiescent Current:** 700µA (typical)  
- **Gain Range:** 1 to 10,000 (set by external resistor)  
- **Input Offset Voltage:** 50µV (max)  
- **Input Offset Voltage Drift:** 0.5µV/°C (max)  
- **Common-Mode Rejection Ratio (CMRR):** 120dB (min, G = 100)  
- **Bandwidth:** 200kHz (G = 1)  
- **Slew Rate:** 0.4V/µs  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The INA2128U is a low-power, high-precision instrumentation amplifier designed for applications requiring accurate signal amplification in the presence of common-mode noise. It features a wide supply voltage range and low power consumption, making it suitable for battery-powered and industrial applications.  

### **Features:**  
- **Low Power Consumption:** 700µA quiescent current  
- **High Accuracy:** Low offset voltage and drift  
- **Wide Supply Range:** Operates from ±2.25V to ±18V  
- **Adjustable Gain:** Configurable from 1 to 10,000 via an external resistor  
- **High CMRR:** 120dB (min) at G = 100  
- **Low Noise:** 8nV/√Hz at 1kHz  
- **Stable with Capacitive Loads:** No external compensation needed  
- **Overvoltage Protection:** Up to ±40V on inputs  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Dual/ Low Power INSTRUMENTATION AMPLIFIER

Alternative Part Number

  • AD620ARZ --: Industry-standard instrumentation amplifier with similar gain range and low offset, widely used as a functional substitute in precision signal conditioning.
  • INA128UA --: Same family instrumentation amplifier with comparable architecture and performance, easy drop-in for many INA2128 designs.
  • LT1167CS8 --: Low-noise instrumentation amplifier with similar gain and supply range, suitable alternative when INA2128 is unavailable.
  • LT1167ACS8 --: Precision instrumentation amplifier in SOIC-8 with low offset voltage and high CMRR, suitable as a functional substitute in signal conditioning circuits.
  • AD8221ARZ --: Precision instrumentation amplifier with excellent CMRR and low offset, a solid alternative for high-accuracy signal conditioning applications.

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