LTC2311CMSE-12#PBF

LTC2311CMSE-12#PBF is a low noise, high-speed 12bit + sign successive approximation register (SAR) ADC with differential inputs and wide input common mode range. Operating from a single 3.3V or 5V supply, the LTC2311- 12 has an 8VP-P differential input range, making it ideal for applications that require a wide dynamic range with high common mode rejection. It achieves ±0.25LSB INL typical, no missing codes at 12 bits and 73dB SNR typical. It has an onboard low drift (20ppm/°C max) 2.048V or 4.096V temperature-compensated reference and provides an external 1.25V buffered reference input. The LTC2311-12 also has a high-speed SPI-compatible serial interface that supports CMOS or LVDS. The fast 5Msps throughput with one-cycle latency makes the device ideally suited for a wide variety of high-speed applications. Applications include high speed data acquisition systems, communications, remote data acquisition, imaging, optical networking, automotive, multiphase motor control.

• Guaranteed 12bit, no missing codes, single 3.3V or 5V supply
• 8VP-P differential inputs with wide input common mode range
• 1.8V to 2.5V I/O voltages, CMOS or LVDS SPI-compatible serial I/O
• Integral linearity error is ±0.25LSB typ, transition noise 0.3LSBRMS typ at (TA = 25°C)
• Differential linearity error is ±0.2LSB typ, aperture jitter is 1psRMS typ at (TA = 25°C)
• Signal-to-noise ratio is 73.3dB typ at (IN = 2.2MHz, VREFOUT = 4.096V, internal reference)
• Total harmonic distortion is -85dB typ at (fIN = 2.2MHz, VREFOUT = 4.096V, internal reference)
• –3dB input linear bandwidth is 10MHz typ at (TA = 25°C)
• Supply current is 8.8mA typ at (5Msps sample rate (AIN+ = AIN– = 0V))
• Operating temperature range from 0°C to 70°C, 16-lead plastic MSOP package

附註

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