LTC2496 Datasheet | Linear Technology

LTC2496 16-Bit 8-/16-Channel ΔΣ ADC with Easy Drive Input Current Cancellation Features n Up to 8 Differential or 16 Single-Ended Inputs n Easy Drive Technology Enables Rail-to-Rail Inputs with Zero Differential Input Current n Directly Digitizes High Impedance Sensors with Full Accuracy n 600n V RMS Noise (0.02 LSB Transition Noise) n GND to VCC Input/Reference mon Mode Range n Simultaneous 50Hz/60Hz Rejection n 2ppm INL, No Missing Codes n 1ppm Offset and 15ppm Full-Scale Error n No Latency: Digital Filter Settles in a Single Cycle, Even After a New Channel is Selected n Single Supply 2.7V to 5.5V Operation (0.8m W) n Internal Oscillator n QFN 5mm × 7mm Package Applications n Direct Sensor Digitizer n Direct Temperature Measurement n Instrumentation n Industrial Process Control Description The LTC®2496 is a 16-channel (8-differential) 16-bit No Latency ΔΣ™ ADC with Easy Drive™ technology. The patented sampling scheme eliminates dynamic input current errors and the shortings of on-chip buffering through automatic cancellation of differential input current. This allows large external source impedances, and rail-to-rail input signals to be directly digitized while maintaining exceptional DC accuracy. The LTC2496 includes an integrated oscillator. This device can be configured to measure an external signal (from binations of 16 analog input channels operating in single ended or differential modes). It automatically rejects line frequencies of 50Hz and 60Hz, simultaneously. The LTC2496 allows a wide mon mode input range (0V to VCC), independent of the reference voltage. Any bination of single-ended or differential inputs can be selected and the first conversion after a new channel is selected is valid. Access to the multiplexer output enables optional external amplifiers to be shared between all analog inputs and auto calibration continuously removes their associated offset and drift. L, LT, LTC, LTM, Linear Technology and the Linear...