LTC2496CUHF#PBF

LTC®2496 is a 16-channel (8-differential) 16bit No Latency ΔΣ™ ADC with Easy Drive™ technology. 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 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 combinations 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 common mode input range (0V to VCC), independent of the reference voltage. Application includes direct sensor digitizer, direct temperature measurement, instrumentation, industrial process control.

• Easy drive technology enables Rail-to-Rail inputs with zero differential input current
• Directly digitizes high impedance sensors with full accuracy
• 600nV RMS noise, GND to VCC input/reference common mode range
• Simultaneous 50Hz/60Hz rejection, 2ppm INL, no missing codes
• Offset error is 0.5µV (typ, 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC)
• Positive full-scale error is 32ppm of VREF (max, 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN– = 0.25VREF)
• No latency digital filter settles in a single cycle, even after a new channel is selected
• Internal oscillator
• Single supply 2.7V to 5.5V operation range (0.8mW)
• 38-lead plastic QFN package, operating temperature range from 0°C to 70°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party