Overview
The INA116UA is a high-performance instrumentation amplifier produced by Texas Instruments. It is part of the Difet® series and is known for its ultra-low input bias current, making it ideal for applications requiring high precision and low noise. The amplifier is available in a 16-pin SOIC package and operates over a temperature range of –40°C to +85°C. It features a 3-op amp topology, allowing gains to be set from 1 to 1000 using a single external resistor. The INA116UA is designed to provide excellent common-mode rejection and low offset voltage, making it suitable for a variety of instrumentation and measurement applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Input Bias Current | 0.003 pA | pA |
| Input Offset Voltage | 500 µV | µV |
| Supply Voltage Range | ±4.5 V to ±18 V, 9 V to 36 V | V |
| Operating Temperature | –40°C to +85°C | °C |
| -3dB Bandwidth | 800 kHz | kHz |
| Slew Rate | 0.8 V/µs | V/µs |
| Output Current per Channel | 12 mA | mA |
| Supply Current | 1 mA | mA |
| Package Type | 16-SOIC (0.295", 7.50mm Width) | |
| Mounting Type | Surface Mount |
Key Features
- Ultra-low input bias current of 0.003 pA, ensuring minimal signal distortion.
- High gain range from 1 to 1000 settable with a single external resistor.
- Excellent common-mode rejection ratio (CMRR) and low offset voltage for high accuracy.
- Guard pins adjacent to both input connections to maintain low input bias current.
- Operating temperature range of –40°C to +85°C, making it suitable for various environmental conditions.
- High bandwidth of 800 kHz and a slew rate of 0.8 V/µs for fast signal processing.
- Lead-free and ROHS compliant, ensuring environmental sustainability.
Applications
The INA116UA is versatile and can be used in a variety of applications, including:
- Medical instrumentation: For precise measurement in medical devices such as ECGs and blood pressure monitors.
- Industrial automation: In sensors and transducers for process control and monitoring.
- Aerospace and defense: For high-reliability and precision measurement in military and aerospace applications.
- Test and measurement equipment: In oscilloscopes, multimeters, and other precision measurement tools.
- Automotive systems: For sensor signal conditioning in automotive applications.
Q & A
- What is the input bias current of the INA116UA?
The input bias current of the INA116UA is 0.003 pA. - What is the operating temperature range of the INA116UA?
The operating temperature range is –40°C to +85°C. - What is the bandwidth of the INA116UA?
The bandwidth is 800 kHz. - How is the gain set in the INA116UA?
The gain can be set from 1 to 1000 using a single external resistor. - What is the slew rate of the INA116UA?
The slew rate is 0.8 V/µs. - Is the INA116UA ROHS compliant?
Yes, the INA116UA is lead-free and ROHS compliant. - What is the package type of the INA116UA?
The package type is 16-SOIC (0.295", 7.50mm Width). - What are the typical applications of the INA116UA?
The INA116UA is used in medical instrumentation, industrial automation, aerospace and defense, test and measurement equipment, and automotive systems. - How does the INA116UA maintain low input bias current?
The INA116UA uses guard pins adjacent to both input connections to maintain low input bias current. - What is the supply voltage range for the INA116UA?
The supply voltage range is ±4.5 V to ±18 V, and 9 V to 36 V.
