LTC2392-16 16-Bit, 500ksps SAR ADC with 94dB SNR FeaturesDescription n 500ksps Throughput Rate The LTC®2392-16 is a low noise, high speed 16-bit suc- n ±2LSB INL (Max) cessive approximation register (SAR) ADC. Operating n Guaranteed 16-Bit No Missing Codes from a single 5V supply, the LTC2392-16 supports a large n 94dB SNR (Typ) at fIN = 20kHz ±4.096V fully differential input range, making it ideal for n Guaranteed Operation to 125°C high performance applications which require maximum n Single 5V Supply dynamic range. The LTC2392-16 achieves ±2LSB INL n 1.8V to 5V I/O Voltages max, no missing codes at 16-bits and 94dB SNR (typ). n 110mW Power Dissipation The LTC2392-16 includes a precision internal reference n ±4.096V Differential Input Range with a guaranteed 0.5% initial accuracy and a ±20ppm/°C n Internal Reference (20ppm/°C Max) (max) temperature coefficient. Fast 500ksps throughput n No Pipeline Delay, No Cycle Latency with no cycle latency in both parallel and serial interface n Parallel and Serial Interface modes makes the LTC2392-16 ideally suited for a wide n Internal Conversion Clock variety of high speed applications. An internal oscillator n 48-Lead 7mm × 7mm LQFP and QFN Packages sets the conversion time, easing external timing con- siderations. The LTC2392-16 dissipates only 110mW at applications 500ksps, while both nap and sleep power-down modes are provided to further reduce power during inactive periods. n Medical Imaging L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear n High Speed Data Acquisition Technology Corporation. All other trademarks are the property of their respective owners. n Digital Signal Processing n Industrial Process Control n Instrumentation n ATE typical application16k Point FFT fS = 500ksps,fIN = 20kHz 5V 5V 1.8V TO 5V 0 10µF 0.1µF 10µF 0.1µF 4.7µF SNR = 94dB –20 THD = –103dB SINAD = 93.5dB ANALOG INPUT AVP DVP OVP –40 PARALLEL SFDR = 104dB 0V TO 4.096V 249Ω OR –60 IN+ SERIAL 16 BIT INTERFACE –80 LT6350 2200pF LTC2392-16 –100 SER/PAR BYTESWAP –120 249Ω OB/2C AMPLITUDE (dBFS) IN– CS –140 SINGLE-ENDED- RD TO-DIFFERENTIAL BUSY VCM REFIN REFOUT CNVST PD RESET GND OGND –160 DRIVER 239216 TA01 –180 10µF 1µF SAMPLE CLOCK 0 50 100 150 200 250 FREQUENCY (kHz) 239216 G08 239216fa 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Analog Input Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Digital Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts
