Precision, Low Power INSTRUMENTATION AMPLIFIERS The INA128 is a precision instrumentation amplifier manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Specifications:**
- **Supply Voltage Range:** ±2.25V to ±18V
- **Quiescent Current:** 700 µA (typical)
- **Input Offset Voltage:** 50 µV (max)
- **Input Offset Voltage Drift:** 0.5 µV/°C (max)
- **Input Bias Current:** 5 nA (max)
- **Common-Mode Rejection Ratio (CMRR):** 120 dB (min)
- **Gain Range:** 1 to 10,000 (set via external resistor)
- **Bandwidth:** 200 kHz (G = 100)
- **Slew Rate:** 4 V/µs
- **Operating Temperature Range:** -40°C to +85°C
- **Package Options:** PDIP-8, SOIC-8
### **Descriptions:**
The INA128 is a low-power, general-purpose instrumentation amplifier offering high accuracy and stability. It is designed for applications requiring precise signal amplification with minimal noise and drift. The gain is easily adjustable using an external resistor, making it versatile for various signal conditioning tasks.
### **Features:**
- **Low Power Consumption:** 700 µA typical quiescent current
- **High CMRR:** 120 dB (min) ensures excellent noise rejection
- **Wide Supply Range:** Operates from ±2.25V to ±18V
- **Low Offset Voltage and Drift:** Ensures precision over temperature
- **Adjustable Gain:** Set via a single external resistor
- **Low Noise:** 8 nV/√Hz at 1 kHz
- **Stable Operation:** Internally compensated for unity gain
This information is sourced directly from TI's official documentation on the INA128.
