LTC2480CDD#PBF

LTC2480CDD#PBF is a 16bit plus sign No Latency ∆Σ™ analogue-to-digital converter with patented Easy Drive™ 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 input signals, with rail-to-rail input range to be directly digitized while maintaining exceptional DC accuracy. It includes an on-chip programmable gain and an oscillator. It can be configured to provide a programmable gain from 1 to 256 in 8 steps, measure an external signal or internal temperature sensor, and reject line frequencies. 50Hz, 60Hz or simultaneous 50Hz/60Hz line frequency rejection can be selected as well as a 2x speed-up mode. Applications include direct sensor digitizers, weight scales, direct temperature measurements, strain gauge transducers, instrumentation, industrial process control, DVMs and meters.

• Easy Drive™ technology enables rail-to-rail inputs with zero differential input current
• Directly digitizes high impedance sensors with full accuracy
• GND to VCC input/reference common mode range, 2-wire I²C Interface
• No latency: digital filter settles in a single cycle, internal oscillator
• Single supply operation range from 2.7V to 5.5V
• Integral nonlinearity is 2ppm of VREF typ at (5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V)
• Offset error is 2.5µV max at (2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC)
• Output noise is 0.6µVRMS typical at (5V ≤ VCC ≤ 5.5V, VREF = 5V, GND ≤ IN– = IN+ ≤ VCC)
• Supply current (conversion mode) is 160µA typical at (TA = 25°C)
• Operating temperature range from 0°C to 70°C, 10-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