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LTAEY Datasheet(PDF) 1 Page - Linear Integrated Systems |
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LTAEY Datasheet(HTML) 1 Page - Linear Integrated Systems |
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1 / 28 page  LTC2433-1 1 24331fa The LTC ®2433-1 is a differential input micropower 16-bit No Latency ∆ΣTM analog-to-digital converter with an inte- grated oscillator. It provides 0.12LSB INL and 1.45 µV RMS noise independent of VREF. It uses delta-sigma technology and provides single conversion settling of the digital filter. Through a single pin, the LTC2433-1 can be configured for better than 87dB input differential mode rejection at 50Hz and 60Hz ±2%, or it can be driven by an external oscillator for a user defined rejection frequency. The internal oscillator requires no external frequency setting components. The converter accepts any external differential reference voltage from 0.1V to VCC for flexible ratiometric and remote sensing measurement configurations. The full- scale differential input range is from – 0.5 • VREF to 0.5 • VREF. The reference common mode voltage, VREFCM, and the input common mode voltage, VINCM, may be indepen- dently set anywhere between GND and VCC. The DC common mode input rejection is better than 140dB. The LTC2433-1 communicates through a flexible 3-wire digital interface which is compatible with SPI and MICROWIRE TM protocols. s Direct Sensor Digitizer s Weight Scales s Direct Temperature Measurement s Gas Analyzers s Strain-Gage Transducers s Instrumentation s Data Acquisition s Industrial Process Control , LTC and LT are registered trademarks of Linear Technology Corporation. s 16-Bit Differential ADC in a Tiny MSOP s Low Supply Current: 200 µA, 4µA in Autosleep s Rail-to-Rail Differential Input/Reference s 0.12LSB INL, No Missing Codes s 0.16LSB Full-Scale Error and 5 µV Offset s 1.45 µV RMS Noise, Independent of VREF s Very Low Transition Noise: <0.02LSB s Operates with a Reference as Low as 100mV with 16-Bit Resolution s Internal Oscillator—No External Components Required s 87dB Min, Simultaneous 50Hz and 60Hz Notch Filter s Single Supply 2.7V to 5.5V Operation s Pin Compatible with the 20/24-Bit LTC2431/LTC2411 s Available in 10-Lead MSOP Package Differential Input 16-Bit No Latency ∆Σ ADC No Latency ∆Σ is a trademark of Linear Technology Corporation. MICROWIRE is a trademark of National Semiconductor Corporation. Minimum Resolvable Signal vs VREF VCC REF+ FO IN+ IN– SCK REF– SDO GND CS 110 4 9 3 5 6 8 7 24331 TA01 2 = EXTERNAL CLOCK SOURCE = INTERNAL OSC/SIMULTANEOUS 50Hz/60Hz REJECTION 3-WIRE SPI INTERFACE 1 µF (100mV) 4.9k 100 Ω 5V REF LTC2433-1 VREF (V) 0 *FOR VREF ≥ 0.5V THE RESOLUTION IS LIMITED BY STEP SIZE 0 10 30 40 50 2 4 5 90 24331 TA02 20 13 60 70 80 APPLICATIO S DESCRIPTIO FEATURES TYPICAL APPLICATIO |
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