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.
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
Weight Scales
Direct Temperature Measurement
Gas Analyzers
Strain-Gage Transducers
Instrumentation
Data Acquisition
Industrial Process Control
6-Digit DVMs
Number of Bits
24
Sampling Rate (Per Second)
7.5
Number of Inputs
1
Input Type
Single Ended
Data Interface
SPI
Configuration
ADC
Number of A/D Converters
1
Architecture
Sigma-Delta
Reference Type
External
Voltage Supply, Analog
2.7V ~ 5.5V
Voltage Supply, Digital
2.7V ~ 5.5V
Operating Temperature
-40??C ~ 85??C
Package / Case
8-SOIC (0.154, 3.90mm Width)
Supplier Device Package
8-SOIC
Mounting Type
Surface Mount
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