Overview
The INA826AIDGKR is a cost-effective instrumentation amplifier produced by Texas Instruments. It is designed to offer extremely low power consumption and operates over a very wide single-supply or dual-supply range. The device is highly versatile, allowing for gain settings from 1 to 1000 using a single external resistor. It features excellent stability over temperature and a low gain drift, making it suitable for a variety of applications requiring precise signal amplification.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (Single Supply) | 3 | 36 | V | |
| Supply Voltage (Dual Supply) | ±1.5 | ±18 | V | |
| Input Offset Voltage | 40 | 150 | µV | |
| Common-Mode Rejection Ratio (G = 10) | 100 | dB | ||
| Power-Supply Rejection Ratio (G = 1) | 100 | dB | ||
| Gain Drift (G > 1) | 35 | ppm/°C | ||
| Noise (G ≥ 100) | 18 | nV/√Hz | ||
| Bandwidth (G = 1) | 1 | MHz | ||
| Bandwidth (G = 100) | 60 | kHz | ||
| Supply Current | 200 | µA | ||
| Operating Temperature Range | –40 | 125 | °C | |
| Packages | 8-pin VSSOP, SOIC, WSON |
Key Features
- Extremely low power consumption with a supply current of 200 µA.
- Wide single-supply range from 3 V to 36 V and dual-supply range from ±1.5 V to ±18 V.
- Gain adjustable from 1 to 1000 using a single external resistor.
- Excellent common-mode rejection ratio (CMRR) of over 100 dB at G = 10 and up to 84 dB at G = 1.
- Low offset voltage of 150 µV maximum and low gain drift of 35 ppm/°C for G > 1.
- Rail-to-rail output and input protection up to ±40 V beyond the power supplies.
- Available in 8-pin VSSOP, SOIC, and WSON surface-mount packages.
- Specified temperature range from –40°C to +125°C.
Applications
- Analog input modules
- Flow transmitters
- Battery testing
- LCD testing
- Electrocardiogram (ECG) equipment
- Surgical equipment
- Process analytics (pH, gas, concentration, force, and humidity)
- Circuit breakers (ACB, MCCB, VCB)
Q & A
- What is the supply voltage range for the INA826AIDGKR?
The INA826AIDGKR can operate on a single supply from 3 V to 36 V or a dual supply from ±1.5 V to ±18 V.
- How is the gain of the INA826AIDGKR set?
The gain of the INA826AIDGKR is set using a single external resistor connected between pins 2 and 3.
- What is the common-mode rejection ratio (CMRR) of the INA826AIDGKR?
The CMRR of the INA826AIDGKR is over 100 dB at G = 10 and exceeds 84 dB at G = 1.
- What is the input offset voltage of the INA826AIDGKR?
The input offset voltage of the INA826AIDGKR is 150 µV maximum.
- What is the bandwidth of the INA826AIDGKR at different gains?
The bandwidth is 1 MHz at G = 1 and 60 kHz at G = 100.
- How much current does the INA826AIDGKR consume?
The INA826AIDGKR consumes a supply current of 200 µA.
- What are the available packages for the INA826AIDGKR?
The INA826AIDGKR is available in 8-pin VSSOP, SOIC, and WSON surface-mount packages.
- What is the operating temperature range of the INA826AIDGKR?
The operating temperature range is from –40°C to +125°C.
- What kind of input protection does the INA826AIDGKR have?
The INA826AIDGKR has input protection up to ±40 V beyond the power supplies, limiting input currents to less than 8 mA.
- What are some typical applications of the INA826AIDGKR?
Typical applications include analog input modules, flow transmitters, battery testing, LCD testing, ECG equipment, surgical equipment, and process analytics.
