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LTC2270 Datasheet(PDF) 1 Page - Linear Technology |
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LTC2270 Datasheet(HTML) 1 Page - Linear Technology |
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1 / 36 page  1 2270f LTC2270 TYPICAL APPLICATION FEATURES APPLICATIONS DESCRIPTION 16-Bit, 20Msps Low Noise Dual ADC n Low Power Instrumentation n Software Defined Radios n Portable Medical Imaging n Multi-Channel Data Acquisition n Two-Channel Simultaneously Sampling ADC n 84.1dB SNR (46μVRMS Input Referred Noise) n 99dB SFDR n ±2.3LSB INL(Max) n Low Power: 160mW Total, 80mW per Channel n Single 1.8V Supply n CMOS, DDR CMOS, or DDR LVDS Outputs n Selectable Input Ranges: 1VP-P to 2.1VP-P n 200MHz Full Power Bandwidth S/H n Shutdown and Nap Modes n Serial SPI Port for Configuration n Pin Compatible with LTC2180: 16-Bit, 25Msps, 78mW LTC2140-14: 14-Bit, 25Msps, 50mW n 64-Lead (9mm × 9mm) QFN Package The LTC ®2270 is a two-channel simultaneous sampling 16-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. It is perfect for demanding applications with AC performance that includes 84.1dB SNR and 99dB spurious free dynamic range (SFDR). DC specs include ±1LSB INL (typ), ±0.2LSB DNL (typ) and no missing codes over temperature. The transition noise is 1.44LSBRMS. The digital outputs can be either full rate CMOS, Double Data Rate CMOS, or Double Data Rate LVDS. A separate output power supply allows the CMOS output swing to range from 1.2V to 1.8V. The ENC+ and ENC– inputs may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL, or CMOS inputs. An optional clock duty cycle stabilizer al- lows high performance at full speed for a wide range of clock duty cycles. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Integral Non-Linearity (INL) CMOS, DDR CMOS OR DDR LVDS OUTPUTS 1.8V VDD 1.8V OVDD CLOCK CONTROL D1_15 D1_0 2270 TA01 CH 1 ANALOG INPUT OUTPUT DRIVERS GND OGND S/H 16-BIT ADC CORE CH 2 ANALOG INPUT S/H 16-BIT ADC CORE D2_15 D2_0 20MHz CLOCK OUTPUT CODE 0 –2.0 –1.5 –1.0 –0.5 0.5 0.0 1.0 1.5 2.0 16384 32768 49152 65536 2270 TA02 |
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Similar Description - LTC2270 |
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