INA500 Series
Low-power, greater than 1MΩ RIN, 13.5µA Iq small-size attenuating difference amplifier
Manufacturer: Texas Instruments
Catalog
Low-power, greater than 1MΩ RIN, 13.5µA Iq small-size attenuating difference amplifier
Key Features
• Optimized for small-size, low-power, and low-cost>1MΩ Ultra-high input impedanceThree gain options (G = 1, 0.50, and 0.25)Good precision for 8-bit to 12-bit systemsCMRR: 87dB (typical)Gain error: ±0.01% (typical)Offset voltage: ±0.70mV (typical)Space saving 0.8mm2 X2SON packageBandwidth: 125kHz (typical)Drives 200pF with <20% overshoot (typical)Low quiescent current: 13.5µA (typical)Supply range: 1.7V (±0.85V) to 5.5V (±2.75V)Specified temperature range: –40°C to 125°COptimized for small-size, low-power, and low-cost>1MΩ Ultra-high input impedanceThree gain options (G = 1, 0.50, and 0.25)Good precision for 8-bit to 12-bit systemsCMRR: 87dB (typical)Gain error: ±0.01% (typical)Offset voltage: ±0.70mV (typical)Space saving 0.8mm2 X2SON packageBandwidth: 125kHz (typical)Drives 200pF with <20% overshoot (typical)Low quiescent current: 13.5µA (typical)Supply range: 1.7V (±0.85V) to 5.5V (±2.75V)Specified temperature range: –40°C to 125°C
Description
AI
The INA500 is a difference amplifier with integrated op-amp and matched resistors that offers three gain options. The INA500A version offers gain option of 1, while the INA500B and INA500C versions offer gain options of 0.50 and 0.25 respectively.
These are voltage sensing INAs in difference amplifier configuration with high input impedance of >1MΩ and low quiescent current of 13.5µA. The device achieves 75dB of minimum CMRR and an accurate ±0.05% of maximum gain error, along with 3.5mV of maximum offset (referred to output) in G = 1 configuration. The device can handle up to 27.5V (±13.75V) of input common-mode voltage in G = 0.25 with 5.5V (±2.75V) of supply voltage. The combination of specifications noted above are designed for a variety of level translation and battery monitoring applications.
The precision matched integrated resistors of the INA500 saves BOM costs and board space by removing the need for precise and low tolerance external resistors. The INA500 can interface directly to low-speed, 8-bit to 12-bit, analog-to-digital converters (ADC) and is an excellent choice for replacing discrete implementation of difference amplifiers built with commodity amplifiers and discrete resistors. The INA500 is offered in standard 6-pin packages such as SOT-23 and SC70 as well as the space saving, X2SON package.
The INA500 is a difference amplifier with integrated op-amp and matched resistors that offers three gain options. The INA500A version offers gain option of 1, while the INA500B and INA500C versions offer gain options of 0.50 and 0.25 respectively.
These are voltage sensing INAs in difference amplifier configuration with high input impedance of >1MΩ and low quiescent current of 13.5µA. The device achieves 75dB of minimum CMRR and an accurate ±0.05% of maximum gain error, along with 3.5mV of maximum offset (referred to output) in G = 1 configuration. The device can handle up to 27.5V (±13.75V) of input common-mode voltage in G = 0.25 with 5.5V (±2.75V) of supply voltage. The combination of specifications noted above are designed for a variety of level translation and battery monitoring applications.
The precision matched integrated resistors of the INA500 saves BOM costs and board space by removing the need for precise and low tolerance external resistors. The INA500 can interface directly to low-speed, 8-bit to 12-bit, analog-to-digital converters (ADC) and is an excellent choice for replacing discrete implementation of difference amplifiers built with commodity amplifiers and discrete resistors. The INA500 is offered in standard 6-pin packages such as SOT-23 and SC70 as well as the space saving, X2SON package.
