LTC2314-14 14-Bit, 4.5Msps Serial Sampling ADC in TSOT FEATURES DESCRIPTION n 4.5Msps Throughput Rate The LTC 2314-14 is a 14-bit, 4.5Msps, serial sampling A/D n Guaranteed 14-Bit No Missing Codes converter that draws only 6.2mA from a wide range analog n Internal Reference: 2.048V/4.096V Span supply adjustable from 2.7V to 5.25V. The LTC2314-14 n Low Noise: 77.5dB SNR contains an integrated bandgap and reference buffer which n Low Power: 6.2mA at 4.5Msps and 5V provide a low cost, high performance (20ppm/C max) n Dual Supply Range: 3V/5V operation and space saving applications solution. The LTC2314-14 n Sleep Mode with < 1A Typical Supply Current achieves outstanding AC performance of 77dB SINAD and n Nap Mode with Quick Wake-up < 1 conversion 85dB THD while sampling a 500kHz input frequency. n Separate 1.8V to 5V Digital I/O Supply The extremely high sample rate-to-power ratio makes the n High Speed SPI-Compatible Serial I/O LTC2314-14 ideal for compact, low power, high speed n Guaranteed Operation from 40C to 125C systems. The LTC2314-14 also provides both nap and n 8-Lead TSOT-23 Package sleep modes for further optimization of the device power within a system. APPLICATIONS The LTC2314-14 has a high-speed SPI-compatible serial n Communication Systems interface that supports 1.8V, 2.5V, 3V and 5V logic. The n High Speed Data Acquisition fast 4.5Msps throughput makes the LTC2314-14 ideally n Handheld Terminal Interface suited for a wide variety of high speed applications. n Medical Imaging Complete 14-/12-Bit Pin-Compatible SAR ADC Family n Uninterrupted Power Supplies 500ksps 2.5Msps 4.5Msps 5Msps n Battery Operated Systems 14-Bit LTC2312-14 LTC2313-14 LTC2314-14 n Automotive 12-Bit LTC2312-12 LTC2313-12 LTC2315-12 L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Power 3V/5V 9mW/15mW 14mW/25mW 18mW/31mW 19mW/32mW Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION 5V Supply, Internal Reference, 4.5Msps, 14-bit Sampling ADC 32k Point FFT, f = 4.5Msps, f = 500kHz S IN 0 5V V = 5V DD LTC2314-14 2.2F SNR = 77.5dBFS 20 SINAD = 76.9dBFS V DD CS THD = 84.9dB 40 2.2F SFDR = 88.1dB SERIAL DATA LINK TO REF ASIC, PLD, MPU, DSP 60 SCK OR SHIFT REGISTERS 80 GND SDO 100 DIGITAL OUTPUT SUPPLY ANALOG INPUT A OV IN DD 1.8V TO 5V 0V TO 4.096V 120 2.2F 160 231414 TA01 140 0 250 500 750 1000 1250 1500 1750 2000 2250 FREQUENCY (kHz) 231414 TA01a 231414fa 1 For more information www.linear.com/LTC2314-14 AMPLITUDE (dBFS)LTC2314-14 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2) Supply Voltage (V , OV ) .......................................6V DD DD Reference (REF) and Analog Input (A ) Voltage IN TOP VIEW (Note 3) ......................................(0.3V) to (V + 0.3V) DD V 1 8 CS DD REF 2 7 SCK Digital Input Voltage (Note 3) .. (0.3V) to (OV + 0.3V) DD GND 3 6 SDO Digital Output Voltage ............. (0.3V) to (OV + 0.3V) DD A 4 5 OV IN DD Power Dissipation ...............................................100mW TS8 PACKAGE 8-LEAD PLASTIC TSOT-23 Operating Temperature Range T = 150C, = 195C/W JMAX JA LTC2314C ................................................ 0C to 70C LTC2314I..............................................40C to 85C LTC2314H .......................................... 40C to 125C Storage Temperature Range .................. 65C to 150C Lead Temperature Range (Soldering, 10 sec) ........300C ORDER INFORMATION Lead Free Finish TAPE AND REEL (MINI) TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2314CTS8-14 TRMPBF LTC2314CTS8-14 TRPBF LTFZF 8-Lead Plastic TSOT-23 0C to 70C LTC2314ITS8-14 TRMPBF LTC2314ITS8-14 TRPBF LTFZF 8-Lead Plastic TSOT-23 40C to 85C LTC2314HTS8-14 TRMPBF LTC2314HTS8-14 TRPBF LTFZF 8-Lead Plastic TSOT-23 40C to 125C TRM = 500 pieces. *Temperature grades are identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on lead based finish parts. For more information on lead free part marking, go to: