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INA111BU from BB

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INA111BU

Manufacturer: BB

High Speed FET-Input INSTRUMENTATION AMPLIFIER

Partnumber Manufacturer Quantity Availability
INA111BU BB 5000 In Stock

Description and Introduction

High Speed FET-Input INSTRUMENTATION AMPLIFIER The INA111BU is a high-speed, FET-input instrumentation amplifier manufactured by Texas Instruments.  

### **Specifications:**  
- **Input Offset Voltage:** 500 µV (max)  
- **Input Bias Current:** 2 pA (typ)  
- **Gain Bandwidth Product:** 2 MHz (G = 100)  
- **Slew Rate:** 16 V/µs  
- **Common-Mode Rejection Ratio (CMRR):** 100 dB (min, G = 100)  
- **Supply Voltage Range:** ±4.5 V to ±18 V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin SOIC  

### **Descriptions:**  
The INA111BU is designed for precision signal amplification in high-speed applications. It features FET inputs for low bias current and high input impedance, making it suitable for medical instrumentation, data acquisition, and industrial control systems.  

### **Features:**  
- **FET-Input:** Ensures low input bias current (2 pA typical).  
- **High CMRR:** 100 dB minimum at G = 100.  
- **Wide Bandwidth:** 2 MHz gain bandwidth product.  
- **Fast Slew Rate:** 16 V/µs for rapid signal response.  
- **Adjustable Gain:** External resistor sets gain from 1 to 10,000.  
- **Low Noise:** Optimized for high-precision applications.  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

High Speed FET-Input INSTRUMENTATION AMPLIFIER

Alternative Part Number

  • AD620ANZ --: Industry-standard instrumentation amplifier with similar gain range and pinout, widely available and often used as a drop-in replacement for INA111 in many designs.
  • INA128PA --: Same INA-series instrumentation amplifier family from TI (which acquired Burr-Brown), offering comparable performance and similar package, making it a natural upgrade path.
  • LT1167CN8 --: Precision instrumentation amplifier with comparable specifications and DIP-8 package, suitable as a functional alternative when INA111 is unavailable.

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