LTC2282 Dual 12-Bit, 105Msps Low Power 3V ADC FEATURES DESCRIPTION n Integrated Dual 12-Bit ADCs The LTC 2282 is a 12-bit 105Msps, low power dual 3V n Sample Rate: 105Msps A/D converter designed for digitizing high frequency, n Single 3V Supply (2.85V to 3.4V) wide dynamic range signals. The LTC2282 is perfect for n Low Power: 540mW demanding imaging and communications applications n 70.1dB SNR, 88dB SFDR with AC performance that includes 70.1dB SNR and 85dB n 110dB Channel Isolation at 100MHz SFDR for signals at the Nyquist frequency. n Flexible Input: 1V to 2V Range P-P P-P DC specs include 0.4LSB INL (typ), 0.2LSB DNL (typ) n 575MHz Full Power Bandwidth S/H and no missing codes over temperature. The transition n Clock Duty Cycle Stabilizer noise is a low 0.3LSB . RMS n Shutdown and Nap Modes n A single 3V supply allows low power operation. A separate Pin Compatible Family output supply allows the outputs to drive 0.5V to 3.6V 105Msps: LTC2282 (12-Bit), LTC2284 (14-Bit) logic. 80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit) 65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit) A single-ended CLK input controls converter operation. An 40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit) optional clock duty cycle stabilizer allows high performance 25Msps: LTC2291 (12-Bit), LTC2296 (14-Bit) at full speed for a wide range of clock duty cycles. 10Msps: LTC2290 (12-Bit), LTC2295 (14-Bit) , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. n 64-Pin (9mm 9mm) QFN Package All other trademarks are the property of their respective owners. APPLICATIONS n Wireless and Wired Broadband Communication n Imaging Systems n Spectral Analysis n Portable Instrumentation TYPICAL APPLICATION SNR vs Input Frequency, 1dB, 2V Range OV DD + 12-BIT ANALOG INPUT D11A 73 PIPELINED OUTPUT INPUT A S/H ADC CORE DRIVERS 72 D0A 71 OGND 70 CLOCK/DUTY CYCLE CLK A 69 CONTROL MUX 68 CLOCK/DUTY CYCLE CLK B 67 CONTROL 66 OV DD 65 0 50 100 150 200 250 300 350 D11B + OUTPUT INPUT FREQUENCY (MHz) 2282 TA01b 12-BIT ANALOG INPUT DRIVERS PIPELINED D0B INPUT B S/H ADC CORE OGND 2282 TA01 2282fb 1 SNR (dBFS)LTC2282 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION OV = V (Notes 1, 2) DD DD TOP VIEW Supply Voltage (V ) ..................................................4V DD Digital Output Ground Voltage (OGND) ........ 0.3V to 1V Analog Input Voltage (Note 3) .......0.3V to (V + 0.3V) + DD A 1 48 DA5 INA A 2 47 DA4 INA Digital Input Voltage ......................0.3V to (V + 0.3V) DD REFHA 3 46 DA3 REFHA 4 45 DA2 Digital Output Voltage ................ 0.3V to (OV + 0.3V) DD REFLA 5 44 DA1 REFLA 6 43 DA0 Power Dissipation .............................................1500mW V 7 42 NC DD CLKA 8 41 NC 65 Operating Temperature Range CLKB 9 40 OFB V 10 39 DB11 DD LTC2282C ................................................ 0C to 70C REFLB 11 38 DB10 REFLB 12 37 DB9 LTC2282I..............................................40C to 85C REFHB 13 36 DB8 REFHB 14 35 DB7 Storage Temperature Range ...................65C to 125C A 15 34 DB6 INB + A 16 33 DB5 INB UP PACKAGE 64-LEAD (9mm 9mm) PLASTIC QFNs T = 125C, Q = 20C/W JMAX JA EXPOSED PAD (PIN 65) IS GND AND MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2282IUP PBF LTC2282IUP TRPBF LTC2282UP 40C to 85C 64-Lead (9mm 9mm) Plastic QFN LTC2282CUP PBF LTC2282CUP TRPBF LTC2282UP 0C to 70C 64-Lead (9mm 9mm) Plastic QFN LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2282IUP LTC2282IUP TR LTC2282UP 64-Lead (9mm 9mm) Plastic QFN 40C to 85C LTC2282CUP LTC2282CUP TR LTC2282UP 64-Lead (9mm 9mm) Plastic QFN 0C to 70C Consult LTC Marketing for parts speci ed with wider operating temperature ranges. *Temperature grades are identi ed by a label on the shipping container. For more information on lead free part marking, go to: