LTC2480IDD#PBF

LTC®2480 combines 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 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 LTC2480 includes on-chip programmable gain and an oscillator. The LTC2480 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. Typical applications include direct sensor digitizer, weight scales, direct temperature measurement, 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
• Programmable 50Hz, 60Hz or simultaneous 50Hz/60Hz rejection mode
• 2ppm (0.25LSB) INL, no missing codes and 1ppm offset and 15ppm full-scale error
• Selectable 2x speed mode (15Hz using internal oscillator)
• No latency: digital filter settles in a single cycle
• Single supply 2.7V to 5.5V operation and internal oscillator
• 10 lead DFN package
• Operating temperature range from -40°C to 85°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