Analogue to Digital Converter, 24 bit, 7.5 SPS, Single, 2.7 V, 5.5 V, DFN

LTC2485IDD#PBF - Analogue to Digital Converter, 24 bit, 7.5 SPS, Single, 2.7 V, 5.5 V, DFN
LTC2485IDD#PBF - Analogue to Digital Converter, 24 bit, 7.5 SPS, Single, 2.7 V, 5.5 V, DFN

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Single 24-Bit Sigma-Delta ADCs
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Product Overview

The LTC2485IDD#PBF is a 24-bit delta-sigma A/D Converter with easy drive input current cancellation and I²C interface. 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 LTC2485 includes an on-chip oscillator and can be configured through an I²C interface to reject line frequencies. 50, 60 or simultaneous 50/60Hz line frequency rejection can be selected as well as a 2x speed-up mode. The reference can be as low as 100mV or can be tied directly to VCC. 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.
  • 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
  • Programmable 50, 60Hz or simultaneous 50/60Hz rejection mode
  • 2ppm (0.25LSB) INL, no missing codes
  • 1ppm offset and 15ppm full-scale error
  • Selectable 2x speed mode
  • No latency, digital filter settles in a single cycle
  • Internal oscillator
  • Six addresses and one global address for synchronization


Sensing & Instrumentation, Test & Measurement, Industrial, Automation & Process Control

Product Information

Differential, Single Ended
Single 24-Bit Sigma-Delta ADCs
MSL 1 - Unlimited
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