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INA2143UA from TI/BB,Texas Instruments

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INA2143UA

Manufacturer: TI/BB, BB

High-Speed/ Precision/ G = 10 or G = 0.1 DIFFERENCE AMPLIFIERS

Partnumber Manufacturer Quantity Availability
INA2143UA TI/BB, BB 20 In Stock

Description and Introduction

High-Speed/ Precision/ G = 10 or G = 0.1 DIFFERENCE AMPLIFIERS The INA2143UA is a high-side current shunt monitor manufactured by Texas Instruments (TI) and Burr-Brown (BB).  

### **Specifications:**  
- **Supply Voltage Range:** 2.7V to 26V  
- **Common-Mode Voltage Range:** -0.3V to +26V  
- **Gain Options:**  
  - INA2143UA: Fixed gain of 100 V/V  
- **Accuracy:**  
  - Gain Error: ±0.5% (max)  
  - Offset Voltage: ±100 µV (max)  
- **Bandwidth:** 500 kHz  
- **Quiescent Current:** 900 µA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The INA2143UA is a precision current shunt monitor that measures voltage across a shunt resistor and provides an amplified output proportional to the current. It is designed for high-side sensing in applications such as power management, battery monitoring, and motor control.  

### **Features:**  
- Wide input common-mode voltage range  
- High accuracy with low offset and gain error  
- Bidirectional current sensing capability  
- Internal gain eliminates need for external resistors  
- Low quiescent current for power-sensitive applications  
- Robust design with reverse polarity protection  

For detailed datasheets, refer to TI/BB official documentation.

Application Scenarios & Design Considerations

High-Speed/ Precision/ G = 10 or G = 0.1 DIFFERENCE AMPLIFIERS

Alternative Part Number

  • AD8270ACPZ --: Dual differential amplifier in SOIC-8 with similar wide-supply and high-CMRR performance, suitable as a functional substitute for the INA2143 difference amplifier.
  • INA2134UA --: Same TI instrumentation amplifier family with comparable differential amplifier topology and supply range, though from a different series than the INA2143.
  • LT6370IMS8 --: Precision difference amplifier with low offset and high CMRR in MSOP-8, offering similar signal-conditioning function for differential sensing applications.
  • AD8422ARMZ --: Precision instrumentation amplifier with similar differential-input architecture and low offset, suitable replacement for signal conditioning applications.
  • INA128PA --: Widely available precision instrumentation amplifier with comparable gain and offset performance, pin-compatible in many designs.
  • LT1167CS8 --: Low-noise instrumentation amplifier offering similar gain range and offset characteristics for precision measurement circuits.

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