LTC2245 14-Bit, 10Msps Low Power 3V ADC UFEATURESDESCRIPTIO ■ 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: 1VP-P to 2VP-P Range 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 ■ Shutdown and Nap Modes RMS. ■ Pin Compatible Family A single 3V supply allows low power operation. A separate 125Msps: LTC2253 (12-Bit), LTC2255 (14-Bit) output supply allows the outputs to drive 0.5V to 3.6V 105Msps: LTC2252 (12-Bit), LTC2254 (14-Bit) logic. 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) 10Msps: LTC2225 (12-Bit), LTC2245 (14-Bit) , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. ■ 32-Pin (5mm × 5mm) QFN Package UAPPLICATIO S ■ Wireless and Wired Broadband Communication ■ Imaging Systems ■ Spectral Analysis ■ Portable Instrumentation UTYPICAL APPLICATIOTypical INL, 2V Range 2.0 REFH FLEXIBLE 1.5 REFL REFERENCE 1.0 OVDD 0.5 + D13 14-BIT • ANALOG INPUT CORRECTION OUTPUT 0 PIPELINED • INPUT S/H LOGIC DRIVERS ADC CORE • – –0.5 D0 INL ERROR (LSB) –1.0 OGND –1.5 CLOCK/DUTY CYCLE –2.0 0 4096 8192 12288 16384 CONTROL CODE 2245 TA01 2245 G01 CLK 2245fa 1
