LTC2245 14-Bit, 10Msps Low Power 3V ADC FEATURES DESCRIPTIO Sample Rate: 10Msps The LTC 2245 is a 14-bit 10Msps, low power 3V A/D Single 3V Supply (2.7V to 3.4V) converter designed for digitizing high frequency, wide Low Power: 60mW dynamic range signals. The LTC2245 is perfect for de- 74.4dB SNR manding imaging and communications applications with 90dB SFDR AC performance that includes 74.4dB SNR and 90dB No Missing Codes SFDR for signals well beyond the Nyquist frequency. Flexible Input: 1V to 2V Range P-P P-P DC specs include 1LSB INL (typ), 0.5LSB DNL (typ) and 575MHz Full Power Bandwidth S/H no missing codes over temperature. The transition noise Clock Duty Cycle Stabilizer is a low 1LSB . RMS Shutdown and Nap Modes 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 125Msps: LTC2253 (12-Bit), LTC2255 (14-Bit) logic. 105Msps: LTC2252 (12-Bit), LTC2254 (14-Bit) 80Msps: LTC2229 (12-Bit), LTC2249 (14-Bit) A single-ended CLK input controls converter operation. An 65Msps: LTC2228 (12-Bit), LTC2248 (14-Bit) optional clock duty cycle stabilizer allows high perfor- 40Msps: LTC2227 (12-Bit), LTC2247 (14-Bit) mance at full speed for a wide range of clock duty cycles. 25Msps: LTC2226 (12-Bit), LTC2246 (14-Bit) , LTC and LT are registered trademarks of Linear Technology Corporation. 10Msps: LTC2225 (12-Bit), LTC2245 (14-Bit) All other trademarks are the property of their respective owners. 32-Pin (5mm 5mm) QFN Package U APPLICATIO S Wireless and Wired Broadband Communication Imaging Systems Spectral Analysis Portable Instrumentation TYPICAL APPLICATIO Typical INL, 2V Range 2.0 REFH FLEXIBLE 1.5 REFERENCE REFL 1.0 OV DD 0.5 D13 + 14-BIT 0 CORRECTION ANALOG OUTPUT INPUT PIPELINED LOGIC INPUT DRIVERS S/H ADC CORE 0.5 D0 1.0 OGND 1.5 CLOCK/DUTY 2.0 CYCLE 0 4096 8192 12288 16384 CONTROL CODE 2245 TA01 2245 G01 CLK 2245fa 1 INL ERROR (LSB) U ULTC2245 UUW ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO 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 32 31 30 29 28 27 26 25 + Digital Input Voltage .................... 0.3V to (V + 0.3V) A 1 24 D10 DD IN A 2 23 D9 Digital Output Voltage ................ 0.3V to (OV + 0.3V) IN DD REFH 3 22 D8 Power Dissipation............................................ 1500mW REFH 4 21 OV DD Operating Temperature Range 33 REFL 5 20 OGND LTC2245C ............................................... 0C to 70C REFL 6 19 D7 LTC2245I.............................................40C to 85C V 7 18 D6 DD Storage Temperature Range ..................65C to 125C GND 8 17 D5 9 10 11 12 13 14 15 16 UH PACKAGE 32-LEAD (5mm 5mm) PLASTIC QFN T = 125C, = 34C/W JMAX JA EXPOSED PAD IS GND (PIN 33) MUST BE SOLDERED TO PCB ORDER PART NUMBER QFN PART MARKING 2245* LTC2245CUH LTC2245IUH Order Options Tape and Reel: Add TR Lead Free: Add PBF Lead Free Tape and Reel: Add TRPBF Lead Free Part Marking: