LTC2488CDE#PBF

LTC2488CDE#PBF is a 4-channel (2-channel differential), 16bit, No Latency ΔΣ™ ADC with EasyDrive™ technology. The patented sampling scheme eliminates dynamic input current errors and the shortcomings of on-chip buffering through the 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. It includes an integrated oscillator. This device can be configured to measure an external signal from combinations of 4 analogue input channels operating in single-ended or differential modes. It automatically rejects line frequencies of 50Hz and 60Hz simultaneously. It allows a wide common mode, input range (0V to VCC), independent of the reference voltage. Applications include direct sensor digitizer, direct temperature measurement, instrumentation, and industrial process control.

• Up to 2 differential or 4 single-ended inputs, internal oscillator
• Single supply operation range from 2.7V to 5.5V, simultaneous 50Hz/60Hz rejection
• GND to VCC input/reference common mode range
• Directly digitizes high impedance sensors with full accuracy
• Easy drive technology enables rail-to-rail inputs with zero differential input current
• Integral nonlinearity is 2ppm of VREF typical at (5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V)
• Offset error is 0.5µV typical at (2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC)
• Output noise is 0.6µVRMS typical at (2.7V <lt/> VCC <lt/> 5.5V, 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC)
• Supply current is 160µA typical at (conversion current, TA = 25°C)
• Operating temperature range from 0°C to 70°C, 14-lead plastic DFN package

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