Features

• Pin Compatible 4-/8-Channel 20-Bit ADCs
• 8ppm INL, No Missing Codes at 20 Bits
• 4ppm Full-Scale Error and 0.5ppm Offset
• 1.2ppm Noise
• Digital Filter Settles in a Single Cycle. Each Conversion is Accurate, Even After Changing Channels
• Fast Mode: 16-Bit Noise, 12-Bit TUE at 100sps
• 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
• Can Be Interchanged with 24-Bit LTC2404/LTC2408 if ZSSET Pin is Grounded

Typical Application

Applications

• Weight Scales
• Direct Temperature Measurement
• Gas Analyzers
• Strain-Gage Transducers
• Instrumentation
• Data Acquisition
• Industrial Process Control
• 4-Digit DVMs

Packaging

Datasheet

• LTC2424/LTC2428 - 4-/8-Channel 20-Bit µPower No Latency Delta-Sigma ADC

Application Note

• AN96 - Delta Sigma ADC Bridge Measurement Techniques

Design Note

• DN219 - 24-Bit ADC Measures from DC to Daylight

Reliability Data

• R380 Reliability Data

Product Selector Card

• No Latency Delta-Sigma™ ADCs

LT Journal

• May 2001 No Latency Delta-Sigma ADC Techniques for Optimized Performance

Related Product

• LTC2408 - 4-/8-Channel 24-Bit µPower No Latency Delta-Sigma ADC
• LT5400 - Quad Matched Resistor Network
• LTC2440 - 24-Bit High Speed Differential Delta Sigma ADC with Selectable Speed/Resolution
• LTC6655 - 0.25ppm Noise, Low Drift Precision References
• LTC2444 - 24-Bit High Speed 8-/16-Channel Delta Sigma ADCs with Selectable Speed/Resolution
• LTC2400 - 24-Bit µPower No Latency Delta-Sigma ADC in SO-8
• LTM2883 - SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power
• LTC1867 - 16-Bit, 8-Channel 200ksps ADCs
• LT3080 - Adjustable 1.1A Single Resistor Low Dropout Regulator
• LT1761 - 100mA, Low Noise, LDO Micropower Regulators in TSOT-23