LTC2450 Datasheet | Linear Technology

Features n GND to VCC Single-Ended Input Range n 0.02LSB RMS Noise n 2LSB INL, No Missing Codes n 2LSB Offset Error n 4LSB Full-Scale Error n Single Conversion Settling Time for Multiplexed Applications n Single Cycle Operation with Auto Shutdown n 350μA Supply Current n 50n A Sleep Current n 30 Conversions Per Second n Internal Oscillator- No External ponents Required n Single Supply, 2.7V to 5.5V Operation n SPI Interface n Ultra-Tiny 2mm × 2mm DFN Package 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 and LTM are registered trademarks of Linear Technology Corporation. East Drive 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. Easy-to-Use, Ultra-Tiny 16-Bit ΔΣ ADC DESCRIPTION The LTC®2450 is an ultra-tiny 16-bit analog-to-digital converter. The LTC2450 uses a single 2.7V to 5.5V supply, accepts a single-ended analog input voltage, and municates through an SPI interface. It includes an integrated oscillator that does not require any external ponents. It uses a delta-sigma modulator as a converter core and provides single-cycle settling time for multiplexed applications. The converter is available in a 6-pin, 2mm × 2mm DFN package. The internal oscillator does not require any external ponents. The LTC2450 includes a proprietary input sampling scheme that reduces the average input sampling current several orders of magnitude. The LTC2450 is capable of up to 30 conversions per second and, due to the very large oversampling ratio, has extremely relaxed antialiasing requirements. The LTC2450 includes continuous internal offset and full-scale calibration algorithms which are transparent to the user, ensuring accuracy over time and over the operating temperature range....