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PGA
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0A to 2A Current Source Balanced Frequency Converter (Suitable for Frequencies up to 50kHz) Bidirectional Current Source Interfacing a Bipolar, Ground Referenced, Single-Ended Signal to a Unipolar Single Supply, Differential Input ADC (VIN = 0V Gives a Digital Mid-Scale Code) Full-Bridge Load Current Monitor Low Noise AC Amplifier with Programmable Gain and Bandwidth Single Supply Video Line Driver Wideband Digitally Programmable Gain Amplifier
0A to 2A Current Source
The LT1995 amplifies the sense resistor drop by 5V/V and subtracts that from VIN, providing an error signal to an LT1880 integrator. The integrated error drives the PMOSFET as required to deliver the commanded current.
