
Linear Technology
DESCRIPTION
The LTC®2451 is an ultra-tiny, 16-bit, analog-to-digital converter. The LTC2451 uses a single 2.7V to 5.5V supply, accepts a single-ended analog input voltage and communicates through an I2C interface. The converter is available in an 8-pin, 3mm × 2mm DFN or TSOT-23 package. It includes an integrated oscillator that does not require any external components. It uses a delta-sigma modulator as a converter core and provides single-cycle settling time for multiplexed applications. The LTC2451 includes a proprietary input sampling scheme that reduces the average input sampling current several orders of magnitude lower than conventional Δ∑ converters.
FEATURES
● GND to VCC Single-Ended Input Range
● 0.02LSB RMS Noise
● 2LSB INL, No Missing Codes
● 1LSB Offset Error
● 4LSB Full-Scale Error
● Programmable 30/60 Conversions per Second
● Single Conversion Settling Time for Multiplexed Applications
● Single-Cycle Operation with Auto Shutdown
● 400μA Supply Current
● 0.2μA Sleep Current
● Internal Oscillator—No External Components Required
● Single Supply, 2.7V to 5.5V Operation
● 2-Wire I2C Interface
● Ultra-Tiny 3mm × 2mm DFN or TSOT-23 Package
APPLICATIONS
● System Monitoring
● Environmental Monitoring
● Direct Temperature Measurements
● Instrumentation
● Industrial Process Control
● Data Acquisition
● Embedded ADC Upgrades