LTC2288/LTC2287/LTC2286 Dual 10-Bit, 65/40/25Msps Low Noise 3V ADCs FEATURES DESCRIPTIO Integrated Dual 10-Bit ADCs The LTC 2288/LTC2287/LTC2286 are 10-bit 65Msps/ Sample Rate: 65Msps/40Msps/25Msps 40Msps/25Msps, low noise dual 3V A/D converters de- Single 3V Supply (2.7V to 3.4V) signed for digitizing high frequency, wide dynamic range Low Power: 400mW/235mW/150mW signals. The LTC2288/LTC2287/LTC2286 are perfect for 61.8dB SNR demanding imaging and communications applications 85dB SFDR with AC performance that includes 61.8dB SNR and 85dB 110dB Channel Isolation at 100MHz SFDR for signals at the Nyquist frequency. Multiplexed or Separate Data Bus DC specs include 0.1LSB INL (typ), 0.05LSB DNL (typ) Flexible Input: 1V to 2V Range P-P P-P and 0.6 LSB INL, 0.5 LSB DNL over temperature. The 575MHz Full Power Bandwidth S/H transition noise is a low 0.07LSB . RMS Clock Duty Cycle Stabilizer A single 3V supply allows low power operation. A separate Shutdown and Nap Modes output supply allows the outputs to drive 0.5V to 3.6V Pin Compatible Family logic. An optional multiplexer allows both channels to 105Msps: LTC2282 (12-Bit), LTC2280 (10-Bit) share one digital output bus. 80Msps: LTC2294 (12-Bit), LTC2289 (10-Bit) 65Msps: LTC2293 (12-Bit), LTC2288 (10-Bit) A single-ended CLK input controls converter operation. An 40Msps: LTC2292 (12-Bit), LTC2287 (10-Bit) optional clock duty cycle stabilizer allows high perfor- 25Msps: LTC2291 (12-Bit), LTC2286 (10-Bit) mance at full speed for a wide range of clock duty cycles. 10Msps: LTC2290 (12-Bit), LTC2292 (14-Bit) , LTC and LT are registered trademarks of Linear Technology Corporation. 64-Pin (9mm 9mm) QFN Package All other trademarks are the property of their respective owners. U APPLICATIO S Wireless and Wired Broadband Communication Imaging Systems Spectral Analysis Portable Instrumentation TYPICAL APPLICATIO OV DD + LTC2288: SNR vs Input Frequency, 10-BIT ANALOG INPUT D9A PIPELINED OUTPUT INPUT A S/H 1dB, 2V Range, 65Msps ADC CORE DRIVERS D0A 62.5 OGND 61.5 CLOCK/DUTY CYCLE CLK A CONTROL 60.5 MUX CLOCK/DUTY CYCLE CLK B 59.5 CONTROL 58.5 OV DD D9B + OUTPUT 10-BIT 57.5 ANALOG INPUT DRIVERS PIPELINED 0 50 100 150 200 D0B INPUT B S/H ADC CORE INPUT FREQUENCY (MHz) OGND 228876 TA02 228876 TA01 228876fa 1 SNR (dBFS) U ULTC2288/LTC2287/LTC2286 ABSOLUTE AXI U RATI GS OV = V (Notes 1, 2) DD DD Supply Voltage (V ) ................................................. 4V Power Dissipation............................................ 1500mW DD Digital Output Ground Voltage (OGND) ....... 0.3V to 1V Operating Temperature Range Analog Input Voltage (Note 3) ..... 0.3V to (V + 0.3V) LTC2288C, LTC2287C, LTC2286C........... 0C to 70C DD Digital Input Voltage .................... 0.3V to (V + 0.3V) LTC2288I, LTC2287I, LTC2286I ..........40C to 85C DD Digital Output Voltage ................ 0.3V to (OV + 0.3V) Storage Temperature Range ..................65C to 125C DD UUW PACKAGE/ORDER I FOR ATIO TOP VIEW ORDER PART QFN PART* NUMBER MARKING + A 1 48 DA3 INA A 2 47 DA2 INA REFHA 3 46 DA1 REFHA 4 45 DA0 REFLA 5 44 NC LTC2288CUP LTC2288UP REFLA 6 43 NC V 7 42 NC DD LTC2288IUP LTC2288UP CLKA 8 41 NC 65 CLKB 9 40 OFB LTC2287CUP LTC2287UP V 10 39 DB9 DD REFLB 11 38 DB8 LTC2287IUP LTC2287UP REFLB 12 37 DB7 REFHB 13 36 DB6 LTC2286CUP LTC2286UP REFHB 14 35 DB5 LTC2286IUP LTC2286UP A 15 34 DB4 INB + A 16 33 DB3 INB Order Options Tape and Reel: Add TR UP PACKAGE Lead Free: Add PBF Lead Free Tape and Reel: Add TRPBF 64-LEAD (9mm 9mm) PLASTIC QFN Lead Free Part Marking: