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INA115BU from BB

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INA115BU

Manufacturer: BB, TI/BB, BB/TI

Precision INSTRUMENTATION AMPLIFIER

Partnumber Manufacturer Quantity Availability
INA115BU BB, TI/BB, BB/TI 296 In Stock

Description and Introduction

Precision INSTRUMENTATION AMPLIFIER The INA115BU is a precision instrumentation amplifier manufactured by Texas Instruments. Here are its key specifications, descriptions, and features:

### **Specifications:**  
- **Supply Voltage Range:** ±2.25V to ±18V  
- **Input Offset Voltage:** 50µV (max)  
- **Input Offset Voltage Drift:** 0.25µV/°C (max)  
- **Input Bias Current:** 2nA (max)  
- **Common-Mode Rejection Ratio (CMRR):** 115dB (min)  
- **Gain Range:** 1 to 10,000 (set via external resistor)  
- **Bandwidth:** 200kHz (G = 1)  
- **Slew Rate:** 0.8V/µs  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin SOIC  

### **Descriptions:**  
- The INA115BU is a high-precision instrumentation amplifier designed for low-noise, low-drift applications.  
- It features laser-trimmed resistors for high accuracy and stability.  
- Suitable for applications requiring high CMRR and low DC errors.  

### **Features:**  
- **Low Offset Voltage and Drift:** Ensures high DC accuracy.  
- **High CMRR:** Rejects common-mode signals effectively.  
- **Wide Supply Range:** Operates from ±2.25V to ±18V.  
- **Flexible Gain Setting:** Adjustable via a single external resistor.  
- **Low Noise:** 1.5µVpp (0.1Hz to 10Hz).  
- **High Input Impedance:** 10¹⁰Ω (typical).  

This amplifier is commonly used in medical instrumentation, strain gauge amplification, and industrial process control.

Application Scenarios & Design Considerations

Precision INSTRUMENTATION AMPLIFIER

Alternative Part Number

  • AD620ANZ --: Industry-standard instrumentation amplifier with similar gain range and pin-compatible DIP package; widely available and often used as a drop-in replacement for INA115 designs.
  • INA128PA --: Same INA-series instrumentation amplifier family from the current manufacturer, offering comparable precision and gain performance in a DIP package.
  • LT1167CN8 --: Precision instrumentation amplifier with low offset and drift, suitable for replacing INA115 in high-accuracy signal conditioning applications.
  • AD620BRZ --: Industry-standard precision instrumentation amplifier with similar gain range and low offset, widely used as a drop-in functional replacement for INA115 in instrumentation designs.
  • AD8221BRZ --: High-performance instrumentation amplifier offering low noise and high CMRR, suitable for replacing INA115 in precision signal conditioning applications.
  • LT1167CS8 --: Precision instrumentation amplifier with programmable gain and low offset voltage, a viable alternative when INA115 availability is limited.

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