Overview
The INA128UAE4 is a high-accuracy instrumentation amplifier produced by Texas Instruments, originally developed by Burr Brown. This device is renowned for its exceptional performance in applications where precision and reliability are crucial. It is a RoHS-compliant, ultra-low-power amplifier that supports a wide supply voltage range of 2.7V to 36V. The INA128UAE4 is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) and is ideal for various high-precision differential measurement applications.
Key Specifications
| Category | Value |
|---|---|
| Manufacturer / Brand | Texas Instruments (originally Burr Brown) |
| Amplifier Type | Instrumentation |
| Number of Circuits | 1 |
| Slew Rate | 4 V/µs |
| -3db Bandwidth | 1.3 MHz |
| Current - Input Bias | 2 nA |
| Current - Supply | 700 µA |
| Current - Output / Channel | 15 mA |
| Voltage - Supply Span (Min) | 4.5 V |
| Voltage - Supply Span (Max) | 36 V |
| Voltage - Input Offset | 25 µV (typical), 50 µV (maximum) |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
Key Features
- High accuracy instrumentation amplifier with low input offset voltage (50 µV maximum) and low input bias current (0.8 nA maximum).
- Wide supply voltage range: 2.7 V to 36 V.
- Low power consumption: 700 µA typical supply current.
- Gain range: 1 to 10,000, adjustable using a single external resistor.
- High common-mode rejection ratio (CMRR): 120 dB minimum.
- Bandwidth: 1.3 MHz at a gain of 1.
- Input protection up to ±40 V.
- RoHS-compliant.
Applications
- Medical instrumentation: ECG, patient monitoring systems.
- Industrial process control: pressure transmitters, temperature transmitters, weigh scales.
- Robotics and automotive systems: precise differential measurements.
- High-precision differential measurements: strain gauges, thermocouples, pressure sensors.
- Data acquisition (DAQ) and analog input modules.
Q & A
- What is the primary function of the INA128UAE4?
The INA128UAE4 is a high-accuracy instrumentation amplifier designed for precise differential measurements.
- What is the supply voltage range of the INA128UAE4?
The supply voltage range is from 2.7 V to 36 V.
- What is the typical supply current of the INA128UAE4?
The typical supply current is 700 µA.
- What is the gain range of the INA128UAE4?
The gain range is from 1 to 10,000, adjustable using a single external resistor.
- What is the bandwidth of the INA128UAE4 at a gain of 1?
The bandwidth is 1.3 MHz at a gain of 1.
- What is the input offset voltage of the INA128UAE4?
The input offset voltage is 50 µV maximum.
- Is the INA128UAE4 RoHS-compliant?
Yes, the INA128UAE4 is RoHS-compliant.
- What are the common applications of the INA128UAE4?
Common applications include medical instrumentation, industrial process control, robotics, automotive systems, and high-precision differential measurements.
- What is the operating temperature range of the INA128UAE4?
The operating temperature range is from -40°C to 125°C.
- What is the package type of the INA128UAE4?
The package type is 8-SOIC (Small Outline Integrated Circuit - 8 pin).
