LTC2400: 24-Bit µPower No Latency Delta-Sigma ADC in SO-8 Data Sheet8/24/2007469K
Features and Benefits
- 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
The LTC2400 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 LTC2400 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 LTC2400 smoothly resolves the offset and overrange problems of preceding sensors or signal conditioning circuits.
The LTC2400 communicates through a flexible 3-wire digital interface which is compatible with SPI and MICROWIRE™ protocols.
- Weight Scales
- Direct Temperature Measurement
- Gas Analyzers
- Strain-Gage Transducers
- Data Acquisition
- Industrial Process Control
- 6-Digit DVMs
Markets and Technologies
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
DC573A: Demo Board for the LTC2400 24-Bit µPower No Latency Delta-Sigma ADC in SO-8.
Documentation & Resources
R411 Reliability Data3/22/201832 K
AN96 - Delta Sigma ADC Bridge Measurement Techniques10/15/2007226K
AN86 - A Standards Lab Grade 20-Bit DAC with 0.1ppm/° Drift: The Dedicated Art of Digitizing One Part Per Million10/15/2007527K
AN78 - A Collection of Differential to Single-Ended Signal Conditioning Circuits for Use with the LTC2400, a 24-Bit No Latency Delta Sigma ADC in an SO-810/15/2007173K
AN80 - How to Use the Worlds Smallest 24-Bit No Latency Delta-Sigma ADC to its Fullest Potential8/20/200778K
AN-105: Current Sense Circuit Collection Making Sense of Current12/1/2005
DC573A - Demo Manual6/6/2012327K
No Latency Delta-Sigma™ ADCs5/30/2014640K
24-Bit ADC Challenges ΔΣ Conventions3/1/2003 LT Journal
A Standards Lab Grade 20-Bit DAC with 0.1ppm/°C Drift5/1/2001 LT Journal
No Latency Delta-Sigma ADC Techniques for Optimized Performance5/1/2001 LT Journal
A New, Fully Differential, No Latency Delta-Sigma ADC Family11/1/2000 LT Journal
1- and 2-Channel, No Latency ∆Σ, 24-Bit ADCs Easily Digitize a Variety of Sensors2/1/2000 LT Journal
An 8-Channel, High-Accuracy, No Latency ∆Σ 24-Bit ADC9/1/1999 LT Journal
LTC2400 Differential Bridge Digitizers6/1/1999 LT Journal
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Linduino code repository on GitHub and instructions on how to use the code.
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.