LTC2470 Datasheet | Linear Technology

LTC2470/LTC2472 Features Selectable 208sps/833sps, 16-Bit ΔΣ ADCs with 10ppm/°C Max Precision Reference Description n 16-Bit Resolution n Internal, High Accuracy Reference- 10ppm/°C (Max) n Single-Ended (LTC2470) or Differential (LTC2472) n Selectable 208sps/833sps Output Rate n 1m V Offset Error n 0.01% Gain Error n Single Conversion Settling Time for Multiplexed Applications n Single-Cycle Operation with Auto Shutdown n 3.5m A (Typ) Supply Current n 2µA (Max) Sleep Current n Internal Oscillator- No External ponents Required n SPI Interface n Small 12-Lead, 3mm × 3mm DFN and MSOP Packages Applications n System Monitoring n Environmental Monitoring n Direct Temperature Measurements n Instrumentation n Industrial Process Control n Data Acquisition n Embedded ADC Upgrades L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and No Latency ∆∑ is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 6208279, 6411242, 7088280, 7164378. The LTC®2470/LTC2472 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 municate through a SPI Interface. The LTC2470 is single-ended with a 0V to VREF input range and the LTC2472 is differential with a ±VREF input range. Both ADC’s 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 LTC2470/ LTC2472 include a proprietary input sampling scheme that reduces the average input current several orders of magnitude when pared to conventional delta sigma converters. Following a single conversion, the LTC2470/LTC2472 automatically power...