LTC2324-16 Quad, 16-Bit, 2Msps/Ch Simultaneous Sampling ADC FEATURES DESCRIPTION n 2Msps/Ch Throughput Rate The LTC 2324-16 is a low noise, high speed quad 16-bit n Four Simultaneously Sampling Channels successive approximation register (SAR) ADC with n Guaranteed 16-Bit, No Missing Codes differential inputs and wide input common mode range. n 8V Differential Inputs with Wide Input Operating from a single 3.3V or 5V supply, the LTC2324-16 P-P Common Mode Range has an 8V differential input range, making it ideal for P-P n 82dB SNR (Typ) at f = 500kHz applications which require a wide dynamic range with high IN n 90dB THD (Typ) at f = 500kHz common mode rejection. The LTC2324-16 achieves 2LSB IN n Guaranteed Operation to 125C INL typical, no missing codes at 16 bits and 82dB SNR. n Single 3.3V or 5V Supply The LTC2324-16 has an onboard low drift (20ppm/C max) n Low Drift (20ppm/C Max) 2.048V or 4.096V 2.048V or 4.096V temperature-compensated reference. Internal Reference The LTC2324-16 also has a high speed SPI-compatible n 1.8V to 2.5V I/O Voltages serial interface that supports CMOS or LVDS. The fast n CMOS or LVDS SPI-Compatible Serial I/O 2Msps per channel throughput with no latency makes the n Power Dissipation 40mW/Ch (Typ) LTC2324-16 ideally suited for a wide variety of high speed n Small 52-Pin (7mm 8mm) QFN Package applications. The LTC2324-16 dissipates only 40mW per channel and offers nap and sleep modes to reduce the APPLICATIONS power consumption to 26W for further power savings n High Speed Data Acquisition Systems during inactive periods. n Communications L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Analog Devices, Inc. All other trademarks are the property of their n Optical Networking respective owners. n Multiphase Motor Control TYPICAL APPLICATION 10F 1F TRUE DIFFERENTIAL INPUTS NO CONFIGURATION REQUIRED 32k Point FFT f = 2Msps, 3.3V OR 5V 1.8V TO 2.5V SMPL f = 500kHz + IN IN IN , IN 0 V GND GND O DD V DD SNR = 83.1dB ARBITRARY DIFFERENTIAL THD = 90.5dB V V DD DD CMOS/LVDS + A 16-BIT 20 IN1 SINAD = 82.8dB S/H SDR/DDR A SAR ADC IN1 SFDR = 97.1dB REFBUFEN 40 + SDO1 A 16-BIT IN2 S/H 0V 0V SDO2 A SAR ADC IN2 60 SDO3 LTC2324-16 SDO4 CLKOUT 80 BIPOLAR UNIPOLAR + A 16-BIT V V IN3 SCK DD DD S/H A SAR ADC IN3 100 CNV SAMPLE + A 16-BIT CLOCK IN4 S/H 120 A SAR ADC IN4 0V 0V 140 REF REFOUT1 REFOUT2 REFOUT3 REFOUT4 0 0.2 0.4 0.6 0.8 1 1F 10F 10F 10F 10F FOUR SIMULTANEOUS FREQUENCY (MHz) 232416 TA01b SAMPLING CHANNELS 232416 TA01a 232416f 1 For more information www.linear.com/LTC2324-16 AMPLITUDE (dBFS)LTC2324-16 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2) TOP VIEW Supply Voltage (V ) ..................................................6V DD Supply Voltage (OV ) ................................................3V DD Analog Input Voltage 52 51 50 49 48 47 46 45 44 43 42 41 + A , A (Note 3) ................... 0.3V to (V + 0.3V) IN IN DD A 1 40 DNC/SDOD IN4 + + REFOUT1,2,3,4.......................0.3V to (V + 0.3V) A 2 39 SDO4/SDOD DD IN4 GND 3 38 GND CNV........................................ 0.3V to (OV + 0.3V) DD A 4 37 OV IN3 DD Digital Input Voltage + A 5 36 DNC/SDOC IN3 (Note 3) ..................................... 0.3V to (OV + 0.3V) DD + REFOUT3 6 35 SDO3/SDOC Digital Output Voltage GND CLKOUTEN/CLKOUT 7 34 53 + (Note 3) ...................................... 0.3V to (OV + 0.3V) REF 8 33 CLKOUT/CLKOUT GND DD REFOUT2 9 32 GND Operating Temperature Range A 10 31 OV IN2 DD LTC2324C ................................................ 0C to 70C + A 11 30 DNC/SDOB IN2 LTC2324I .............................................40C to 85C + GND 12 29 SDO2/SDOB LTC2324H .......................................... 40C to 125C A 13 28 DNC/SDOA IN1 + + A 14 27 SDO1/SDOA Storage Temperature Range .................. 65C to 150C IN1 15 16 17 18 19 20 21 22 23 24 25 26 UKG PACKAGE 52-LEAD (7mm 8mm) PLASTIC QFN T = 150C, = 31C/W, = 2C/W JMAX JA JC EXPOSED PAD (PIN 53) IS GND, MUST BE SOLDERED TO PCB