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The INA146 is a precision difference amplifier that can be used to accurately attenuate high differential voltages and reject high common-mode voltages for compatibility with common signal processing voltage levels. High-voltage capability also affords inherent input protection.
The INA146 is a precision difference amplifier that can be used to accurately attenuate high differential voltages and reject high common-mode voltages for compatibility with common signal processing voltage levels. High-voltage capability also affords inherent input protection. The input common-mode range extends beyond both supply rails, making the INA146 an excellent choice for both single and dual supply applications. On-chip precision resistors are laser-trimmed to achieve accurate gain and high common-mode rejection. Excellent TCR tracking of these resistors provides continued high precision over temperature. A 10:1 difference amplifier provides 0.1 V/V gain when the output amplifier is used as a unity-gain buffer. In this configuration, input voltages up to ±100 V can be measured. Gains greater than 0.1 V/V can be set with an external resistor pair without affecting the common-mode input range. The INA146 is available in the SO-8 surface mount package specified for the extended industrial temperature range, –40°C to 85°C. Datasheet: PDF Features: • High common-mode voltage:– 40 V at VS = 5 V– ±100 V at VS = ±15 V • Differential gain = 0.1 V/V TO 100 V/V:– Set with External Resistors • Low quiescent current: 570 µA • Wide supply range:– Single Supply: 4.5 V to 36 V– Dual Supplies: ±2.25 V to ±18 V • Low gain error: 0.025% • High common-mode rejection: 80 dB Applications: • Battery cell formation & test equipment • AC drive control module • HVAC controller • Professional audio amplifier (rack mount) • Programmable DC power source • Data acquisition (DAQ) Packing List: 1Pc * INA146UA Programmable Gain Difference Amplifier