ANALOG DEVICES LTC2144IUP-12#PBF Analogue to Digital Converter, 12 bit, 105 MSPS, Differential, Single Ended, Serial, SPI, Single

LTC2144IUP-12#PBF is a 2-channel simultaneous sampling 12bit A/D converter designed for digitizing high frequency, wide dynamic range signals. They are perfect for demanding communications applications with AC performance that includes 70.6dB SNR and 89dB spurious free dynamic range. Ultralow jitter of 0.08psRMS allows undersampling of IF frequencies with excellent noise performance. 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 allows high performance at full speed for a wide range of clock-duty cycles. Applications include communications, cellular base stations, software-defined radios, portable medical imaging, multi-channel data acquisition, and non-destructive testing.

• 2-channel simultaneously sampling ADC, shutdown and nap modes
• CMOS, DDR CMOS, or DDR LVDS outputs, serial SPI port for configuration
• Optional data output randomizer, optional clock duty cycle stabilizer
• Integral linearity error is ±0.3LSB typical at (differential analogue input, TA = 25°C)
• Offset error is ±1.5mV typical at (TA = 25°C)
• Full-power bandwidth is 750MHz typical at (TA = 25°C)
• Signal-to-noise ratio is 70.5dB typical at (5MHz input, TA = 25°C)
• Sampling frequency is 105MHz maximum at (TA = 25°C)
• Crosstalk is -110dBc typical at (10MHz input, TA = 25°C)
• Operating temperature range from -40°C to +85°C, 64-lead plastic QFN package

Notes

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