LTC2313-14 14-Bit, 2.5Msps Serial Sampling ADC in TSOT FeaTuresDescripTion n 2 . 5Msps Throughput Rate The LTC®2313-14 is a 14-bit, 2.5Msps, serial sampling n No Cycle Latency A/D converter that draws only 5mA from a single 3V or n Guaranteed 14-Bit No Missing Codes 5V supply. The LTC2313-14 contains an integrated low n Single 3V or 5V Supply drift reference and reference buffer providing a low cost, n Low Noise: 77.5dB SNR high performance (20ppm/°C maximum) and space n Low Power: 14mW at 2.5Msps and 3V Supply saving solution. The LTC2313-14 achieves outstanding n Low Drift (20ppm/°C Maximum) 2.048V or 4.096V AC performance of 77dB SINAD and –85dB THD while Internal Reference sampling at 2.5Msps. The extremely high sample rate-to- n Sleep Mode with < 1µA Typical Supply Current power ratio makes the LTC2313-14 ideal for compact, low n Nap Mode with Quick Wake-Up < 1 Conversion power, high speed systems. The supply current decreases n Separate 1.8V to 5V Digital I/O Supply at lower sampling rates as the device automatically enters n High Speed SPI-Compatible Serial I/O nap mode after conversions. n Guaranteed Operation from –40°C to 125°C The LTC2313-14 has a high speed SPI-compatible serial n 8-Lead TSOT-23 Package interface that supports 1.8V, 2.5V, 3V and 5V logic. The fast 2.5Msps throughput with no cycle latency makes applicaTions the LTC2313-14 ideally suited for a wide variety of high n Communication Systems speed applications. n High Speed Data Acquisition n Complete 14-/12-Bit Pin-Compatible SAR ADC Family Handheld Terminal Interface n 500ksps2.5Msps4.5Msps5Msps Medical Imaging n 14-Bit LTC2312-14 LTC2313-14 LTC2314-14 Uninterrupted Power Supplies n 12-Bit LTC2312-12 LTC2313-12 LTC2315-12 Battery Operated Systems n Power 3V/5V 9mW/15mW 14mW/25mW 18mW/31mW 19mW/32mW Automotive L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical applicaTion16k Point FFT, fS = 2.5Msps, fIN = 497kHz5V Supply, Internal Reference, 2.5Msps, 14-bit Sampling ADC 0 VDD = 5V 5V –20 SNR = 77.5dBFS SINAD = 77dBFS 2.2µF LTC2313-14 –40 THD = –85dB V CONV SFDR = 87dB DD –60 2.2µF SERIAL DATA LINK TO REF SCK ASIC, PLD, MPU, DSP –80 OR SHIFT REGISTERS –100 GND SDO AMPLITUDE (dBFS) –120 ANALOG INPUT DIGITAL OUTPUT SUPPLY A 0V TO 4.096V IN OVDD 1.8V TO 5V –140 2.2µF –160 231314 TA01 0 250 500 750 1000 INPUT FREQUENCY (kHz) 231314 TA01b 231314fb For more information www.linear.com/LTC2313-14 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input/Output Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Applications Information Package Description Related Parts
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