LTC2473
PRODUCTIONSelectable 208sps/833sps, 16-Bit I2C ΔΣ ADCs with 10ppm/°C Max Precision Reference
- Part Models
- 8
- 1ku List Price
- Starting From $1.98
Overview
- 16-Bit Resolution
- Internal, High Accuracy Reference—10ppm/°C (Max)
- Single-Ended (LTC2471) or Differential (LTC2473)
- Selectable 208sps/833sps Output Rate
- 1mV Offset Error
- 0.01% Gain Error
- Single Conversion Settling Time Simplifies Multiplexed Applications
- Single-Cycle Operation with Auto Shutdown
- 3.5mA (Typ) Supply Current
- 2μA (Max) Sleep Current
- Internal Oscillator—No External Components Required
- I2C Interface
- Small 12-Lead, 3mm × 3mm DFN and MSOP Packages
The LTC2471/LTC2473 are small, 16-bit analog-to-digital converters with an integrated precision reference and a selectable 208sps or 833sps output rate. They use a single 2.7V to 5.5V supply and communicate through an I2C Interface. The LTC2471 is single-ended with a 0V to VREF input range and the LTC2473 is differential with a ±VREF input range. Both ADCs include a 1.25V integrated reference with 2ppm/°C drift performance and 0.1% initial accuracy. The converters are available in a 12-pin DFN 3mm × 3mm package or an MSOP-12 package. They include an integrated oscillator and perform conversions with no latency for multiplexed applications. The LTC2471/LTC2473 include a proprietary input sampling scheme that reduces the average input current several orders of magnitude when compared to conventional delta sigma converters.
Following a single conversion, the LTC2471/LTC2473 automatically power down the converter and can also be configured to power down the reference. When both the ADC and reference are powered down, the supply current is reduced to 200nA.
The LTC2471/LTC2473 include a user selectable 208sps or 833sps output rate and due to a large oversampling ratio (8,192 at 208sps and 2,048 at 833sps) have relaxed anti-aliasing requirements.
Applications
- System Monitoring
- Environmental Monitoring
- Direct Temperature Measurements
- Instrumentation
- Industrial Process Control
- Data Acquisition
- Embedded ADC Upgrades
Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
Device Drivers 1
Product Selector Card 2
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 |
|---|---|---|---|
| LTC2473CDD#PBF | 12-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2473CDD#TRPBF | 12-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2473CMS#PBF | 12-Lead MSOP | ||
| LTC2473CMS#TRPBF | 12-Lead MSOP | ||
| LTC2473IDD#PBF | 12-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2473IDD#TRPBF | 12-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2473IMS#PBF | 12-Lead MSOP | ||
| LTC2473IMS#TRPBF | 12-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only) |
||
| LTC2473CDD#PBF | PRODUCTION | |
| LTC2473CDD#TRPBF | PRODUCTION | |
| LTC2473CMS#PBF | PRODUCTION | |
| LTC2473CMS#TRPBF | PRODUCTION | |
| LTC2473IDD#PBF | PRODUCTION | |
| LTC2473IDD#TRPBF | PRODUCTION | |
| LTC2473IMS#PBF | PRODUCTION | |
| LTC2473IMS#TRPBF | PRODUCTION | |
|
Jun 5, 2024 - 24_0004 Epoxy Change from Henkel 8290 to 8290A for MSOP (3) |
||
| LTC2473CMS#PBF | PRODUCTION | |
| LTC2473CMS#TRPBF | PRODUCTION | |
| LTC2473IMS#PBF | PRODUCTION | |
| LTC2473IMS#TRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0129 Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC2473CMS#PBF | PRODUCTION | |
| LTC2473CMS#TRPBF | PRODUCTION | |
| LTC2473IMS#PBF | PRODUCTION | |
| LTC2473IMS#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Analog to Digital Converters (ADCs) 1 | ||
| LTC2990 | RECOMMENDED FOR NEW DESIGNS | Quad I2C Voltage, Current and Temperature Monitor |
| Interface Transceivers & Isolators 1 | ||
| LTM2883 | PRODUCTION | SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power |
| Level Translators & Buffers 1 | ||
| LTC4317 | PRODUCTION | Dual I2C/SMBus Address Translator |
| Matched Resistors & Transistors 1 | ||
| LT5400 | RECOMMENDED FOR NEW DESIGNS | Quad Matched Resistor Network |
Tools & Simulations
Linduino 5
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.
Evaluation Kits
LTC2473 Demo Board | Selectable 208sps/833sps, 16-Bit I2C Delta Sigma ADCs with 10ppm/C Max Precision Reference, (Requires DC2026)