LTC2420
PRODUCTION20-Bit µPower No Latency ∆Σ™ ADC in SO-8
- Part Models
- 4
- 1ku List Price
- Starting From $5.30
Part Details
- 20-Bit ADC in SO-8 Package
- 8ppm INL, No Missing Codes at 20 Bits
- 4ppm Full-Scale Error
- 0.5ppm Offset
- 1.2ppm Noise
- Digital Filter Settles in a Single Cycle. Each Conversion Is Accurate, Even After an Input Step
- Fast Mode: 16-Bit Noise, 12 Bits 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
- Pin Compatible with 24-Bit LTC2400
The LTC2420 is a micropower 20-bit A/D converter with an integrated oscillator, 8ppm INL and 1.2ppm RMS noise that operates from 2.7V to 5.5V. It uses delta-sigma technology and provides a digital filter that settles in a single cycle for multiplexed applications. Through a single pin, the LTC2420 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 800Hz. 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 LTC2420 smoothly resolves the offset and overrange problems of preceding sensors or signal conditioning circuits.
The LTC2420 communicates through a flexible 3-wire digital interface which is compatible with SPI and MICROWIRE™ protocols.
Applications
- Weight Scales
- Direct Temperature Measurement
- Gas Analyzers
- Strain-Gage Transducers
- Instrumentation
- Data Acquisition
- Industrial Process Control
- 4-Digit DVMs
Documentation
Data Sheet 1
Reliability Data 1
User Guide 2
Application Note 2
Technical Articles 1
Product Selector Card 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
---|---|---|---|
LTC2420CS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
LTC2420CS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
LTC2420IS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
LTC2420IS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
Part Models | Product Lifecycle | PCN |
---|---|---|
Oct 24, 2024 - 24_0246 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
LTC2420CS8#PBF | PRODUCTION | |
LTC2420CS8#TRPBF | PRODUCTION | |
LTC2420IS8#PBF | PRODUCTION | |
LTC2420IS8#TRPBF | PRODUCTION | |
Oct 12, 2022 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
LTC2420CS8#PBF | PRODUCTION | |
LTC2420CS8#TRPBF | PRODUCTION | |
LTC2420IS8#PBF | PRODUCTION | |
LTC2420IS8#TRPBF | PRODUCTION | |
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
LTC2420CS8#PBF | PRODUCTION | |
LTC2420CS8#TRPBF | PRODUCTION | |
LTC2420IS8#PBF | PRODUCTION | |
LTC2420IS8#TRPBF | PRODUCTION |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
Parts | Product Life Cycle | Description |
---|---|---|
I²C Isolators 1 | ||
LTM2883 | PRODUCTION | SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power |
Precision Resistor Network 1 | ||
LT5400 | RECOMMENDED FOR NEW DESIGNS | Quad Matched Resistor Network |
TimerBlox 1 | ||
LTC6991 | PRODUCTION | TimerBlox: Resettable, Low Frequency Oscillator |
Evaluation Kits
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