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INA2128UG4 from TI,Texas Instruments

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INA2128UG4

Manufacturer: TI, TEXAS

Dual, Low Power Instrumentation Amplifier 16-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
INA2128UG4 TI, TEXAS 764 In Stock

Description and Introduction

Dual, Low Power Instrumentation Amplifier 16-SOIC -40 to 85 The **INA2128UG4** is a precision instrumentation amplifier manufactured by **Texas Instruments (TI)**.  

### **Key Specifications:**  
- **Manufacturer:** Texas Instruments  
- **Type:** Precision Instrumentation Amplifier  
- **Package:** SOIC-16  
- **Number of Channels:** 2 (Dual)  
- **Supply Voltage Range:** ±2.25V to ±18V  
- **Input Offset Voltage:** 50µV (max)  
- **Input Bias Current:** 5nA (max)  
- **Gain Range:** 1 to 10,000 (set via external resistor)  
- **Bandwidth:** 200kHz (G = 100)  
- **Common-Mode Rejection Ratio (CMRR):** 120dB (min)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The **INA2128UG4** is a dual-channel, high-precision instrumentation amplifier designed for applications requiring low noise, high accuracy, and excellent common-mode rejection. It features low offset voltage, low drift, and high gain accuracy, making it suitable for medical instrumentation, industrial process control, and data acquisition systems.  

### **Features:**  
- **Low Offset Voltage:** 50µV (max)  
- **Low Noise:** 8nV/√Hz at 1kHz  
- **High CMRR:** 120dB (min)  
- **Wide Supply Range:** ±2.25V to ±18V  
- **Gain Programmable:** 1 to 10,000 via external resistor  
- **Low Input Bias Current:** 5nA (max)  
- **High Accuracy:** 0.5% gain error (G = 100)  
- **Dual-Channel Operation:** Two independent amplifiers in one package  

This amplifier is ideal for applications requiring high precision and stability in differential signal amplification.

Application Scenarios & Design Considerations

Dual, Low Power Instrumentation Amplifier 16-SOIC -40 to 85

Alternative Part Number

  • AD620BRZ --: Industry-standard instrumentation amplifier with similar low-noise, low-drift performance and pin-compatible SOIC package; widely used as a direct substitute for INA2128 in precision signal conditioning.
  • AD8221ARZ --: High-performance instrumentation amplifier offering comparable gain range and CMRR, available in SOIC-8, suitable drop-in replacement for many INA2128 applications.
  • LT1167CS8 --: Precision instrumentation amplifier with similar specifications and SOIC-8 footprint, providing a viable alternative when INA2128 is unavailable.
  • AD620ANZ --: Industry-standard instrumentation amplifier with similar gain range and low offset, widely used as a functional substitute for the INA2128 in precision signal conditioning.
  • INA128PA --: Single-channel instrumentation amplifier from the same INA family with comparable performance; suitable when dual-channel capability is not required.

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