ANALOG DEVICES LTC2484CDD#TRPBF Analogue to Digital Converter, 24 bit, 7.5 SPS, Differential, 4 Wire, SPI, Serial, Single, 2.7 V

LTC®2484 combines a 24-bit No Latency ??� analogue-to-digital converter with patented EasyDrive� technology. The patented sampling scheme eliminates dynamic input current errors and the short comings 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. This includes an on-chip oscillator. It can be configured to reject line frequencies. This includes an on-chip trimmed oscillator, eliminating the need for external crystals or oscillators. Absolute accuracy and low drift are automatically maintained through continuous, transparent, offset and full-scale calibration. Typical applications are 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
• Output noise is 0.6µVRMS (5V ? VCC ? 5.5V, VREF=5V, GND ? IN�=IN+ ? VCC )
• 1ppm offset and 15ppm total unadjusted error
• No latency: digital filter settles in a single cycle, internal oscillator
• Offset error is 0.5µV typical (2.5V ? VREF ? VCC, GND ? IN+=IN� ? VCC, TA=25°C)
• 10-lead plastic DFN package
• Temperature rating 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