Overview
The INA111AU/1KE4 is a high-speed, FET-input instrumentation amplifier produced by Texas Instruments. This device is designed for precision amplification of small signals from sensors and transducers in various applications. It features a current-feedback topology, providing extended bandwidth and fast settling times. The INA111AU/1KE4 is available in a 16-SOIC surface-mount package and is specified for an operating temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Amplifier Type | Instrumentation |
| Number of Circuits | 1 |
| Slew Rate | 17V/µs |
| -3db Bandwidth | 2 MHz |
| Current - Input Bias | 2 pA |
| Voltage - Input Offset | 200 µV |
| Current - Supply | 3.3mA |
| Current - Output / Channel | 30 mA |
| Voltage - Supply Span (Min/Max) | ±6V ~ 18V (or 12V ~ 36V for single/dual supply) |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) |
Key Features
- FET inputs with low input bias current (under 20pA), simplifying input filtering and limiting circuitry.
- High-speed operation with a slew rate of 17V/µs and a -3db bandwidth of 2 MHz.
- Low offset voltage (200 µV) and low offset voltage drift (5 µV/°C).
- High common-mode rejection ratio (CMRR) of 106dB min.
- Single external resistor sets any gain from 1 to over 1000.
- Compact 16-SOIC surface-mount package.
Applications
- Precision amplification of small signals from sensors and transducers in industrial applications.
- Medical instrumentation, such as in patient monitoring and diagnostic equipment.
- Data acquisition systems, where high accuracy and low noise are critical.
- Scientific applications requiring precise signal amplification.
Q & A
- What is the INA111AU/1KE4? The INA111AU/1KE4 is a high-speed, FET-input instrumentation amplifier produced by Texas Instruments.
- What is the package type of the INA111AU/1KE4? The INA111AU/1KE4 is available in a 16-SOIC surface-mount package.
- What is the operating temperature range of the INA111AU/1KE4? The operating temperature range is -40°C to 85°C.
- What is the slew rate of the INA111AU/1KE4? The slew rate is 17V/µs.
- What is the -3db bandwidth of the INA111AU/1KE4? The -3db bandwidth is 2 MHz.
- What is the input bias current of the INA111AU/1KE4? The input bias current is under 20pA.
- What are the typical applications of the INA111AU/1KE4? Typical applications include medical instrumentation, data acquisition, and scientific applications.
- How is the gain set for the INA111AU/1KE4? The gain is set by a single external resistor and can range from 1 to over 1000.
- What is the common-mode rejection ratio (CMRR) of the INA111AU/1KE4? The CMRR is 106dB min.
- Is the INA111AU/1KE4 RoHS compliant? Yes, the INA111AU/1KE4 is RoHS compliant.
