LTC2499CUHF#PBF

The LTC2499CUHF#PBF is a 16-channel 24-bit delta-sigma A/D Converter with easy drive input current cancellation and I?C 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-to-rail input range to be directly digitized while maintaining exceptional DC accuracy. The LTC2499 includes a high accuracy, temperature sensor and an integrated oscillator. This device can be configured to measure an external signal (from combinations of 16 analogue input channels operating in single- ended or differential modes) or its internal temperature sensor. The integrated temperature sensor offers 1/30th°C resolution and 2°C absolute accuracy. Any combination of single-ended or differential inputs can be selected and the first conversion, after a new channel is selected, is valid.