LTC2452 Datasheet | Linear Technology

Features n ±VCC Differential Input Range n16-Bit Resolution (Including Sign), No Missing Codes n2LSB Offset Error n4LSB Full-Scale Error n60 Conversions Per Second n Single Conversion Settling Time for Multiplexed Applications n Single-Cycle Operation with Auto Shutdown n800µA Supply Current n0.2µA Sleep Current n Internal Oscillator- No External ponents Required n SPI Interface n Ultra-Tiny 3mm × 2mm DFN and TSOT-23 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 ∆Σ 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. LTC2452 Ultra-Tiny, Differential, 16-Bit ∆Σ ADC with SPI Interface Description The LTC®2452 is an ultra-tiny, fully differential, 16-bit, analog-to-digital converter. The LTC2452 uses a single 2.7V to 5.5V supply and municates through an SPI interface. The ADC is available in an 8-pin, 3mm × 2mm DFN package or TSOT-23 package. It includes an integrated oscillator that does not require any external ponents. It uses a delta-sigma modulator as a converter core and has no latency for multiplexed applications. The LTC2452 includes a proprietary input sampling scheme that reduces the average input sampling current several orders of magnitude when pared to conventional delta-sigma converters. Additionally, due to its architecture, there is negligible current leakage between the input pins. The LTC2452 can sample at 60 conversions per second, and due to the very large oversampling ratio, has extremely relaxed anti-aliasing requirements. The LTC2452 includes continuous internal offset and full-scale calibration algorithms which are transparent to the user,...