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LTC2481 16-Bit ΔΣ ADC with Easy Drive Input Current Cancellation and I2C Interface DESCRIPTION
The LTC®2481 combines a 16-bit plus sign No Latency ΔΣ™ analog-to-digital converter with patented Easy Drive technology and I2C digital interface. The patented sampling scheme eliminates dynamic input current errors and the shortcomings of on-chip buffering through automatic cancellation of differential input current. This allows large external source impedances and input signals, with rail-torail input range to be directly digitized while maintaining exceptional DC accuracy. The LTC2481 includes on-chip programmable gain, a temperature sensor and an oscillator.