Precision, Low Power INSTRUMENTATION AMPLIFIERS The INA129 is a precision instrumentation amplifier manufactured by Texas Instruments (TI). Below are the specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:
### **Specifications:**
- **Supply Voltage Range:** ±2.25V to ±18V
- **Input Voltage Range:** Rail-to-rail (within supply limits)
- **Gain Range:** 1 to 10,000 (set via external resistor)
- **Bandwidth:** 500 kHz (G = 1)
- **Slew Rate:** 4 V/µs
- **Input Offset Voltage:** 50 µV (max)
- **Input Bias Current:** 5 nA (max)
- **Common-Mode Rejection Ratio (CMRR):** 120 dB (min, G = 100)
- **Operating Temperature Range:** -40°C to +125°C
- **Package Options:** SOIC-8, PDIP-8
### **Descriptions:**
The INA129 is a high-precision, low-power instrumentation amplifier designed for applications requiring high accuracy and stability. It features a wide supply voltage range, low offset voltage, and excellent CMRR, making it suitable for medical instrumentation, industrial process control, and data acquisition systems.
### **Features:**
- **Low Offset Voltage:** 50 µV max ensures high accuracy.
- **Low Noise:** 0.5 µVpp (0.1 Hz to 10 Hz) for sensitive measurements.
- **Wide Supply Range:** Operates from ±2.25V to ±18V.
- **High CMRR:** 120 dB (min) at G = 100 for noise rejection.
- **Gain Set with Single Resistor:** Flexible gain configuration.
- **Low Power Consumption:** 700 µA (typical) quiescent current.
- **Rail-to-Rail Output Swing:** Maximizes dynamic range.
- **Overload Protection:** Inputs withstand up to ±40V without damage.
This information is sourced from TI's official documentation on the INA129.
