The LTC2400IS8#TRPBF is a 2.7V to 5.5V micropower 24-bit converter with an integrated oscillator, 4ppm INL and 0.3ppm RMS noise. It uses delta-sigma technology and provides single cycle settling time for multiplexed applications. Through a single pin the LTC2400IS8#TRPBF can be configured for better than 110dB rejection at 50Hz or 60Hz ±2%, or it can be driven by an external oscillator for a user defined rejection frequency in the range 1Hz to 120Hz. The internal oscillator requires no external frequency setting components.
The converter accepts any external reference voltage from 0.1V to VCC. With its extended input conversion range of –12.5% VREF to 112.5% VREF, the LTC2400IS8#TRPBF smoothly resolves the offset and overrange problems of preceding sensors or signal conditioning circuits.
The LTC2400IS8#TRPBF communicates through a flexible 3-wire digital interface which is compatible with SPI and MICROWIRE™ protocols.
Feature
24-Bit ADC in SO-8 Package
4ppm INL, No Missing Codes
4ppm Full-Scale Error
Single Conversion Settling Time for Multiplexed Applications
0.5ppm Offset
0.3ppm Noise
Internal Oscillator—No External Components Required
110dB Min, 50Hz/60Hz Notch Filter
Reference Input Voltage: 0.1V to VCC
Live Zero—Extended Input Range Accommodates 12.5% Overrange and Underrange
Single Supply 2.7V to 5.5V Operation
Low Supply Current (200µA) and Auto Shutdown
Applications