LTC2323IUFD-14#PBF

LTC2323IUFD-14#PBF is a low noise, high-speed dual 14bit + 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 LTC2323-14 has an 8VP-P differential input range, making it ideal for applications that require a wide dynamic range with high common mode rejection. The LTC2323-14 achieves ±1LSB INL typical, no missing codes at 14 bits and 80dB SNR. The LTC2323-14 has an onboard low drift (20ppm/°C max) 2.048V or 4.096V temperature-compensated reference. The LTC2323-14 also has a high-speed SPI-compatible serial interface that supports CMOS or LVDS. The fast 5Msps per channel throughput with one-cycle latency makes the device ideally suited for a wide variety of high-speed applications. It is also used in applications such as high speed data acquisition systems, communications, remote data acquisition, imaging, optical networking, automotive, multiphase motor control.

• Guaranteed 14bit, no missing codes, CMOS or LVDS SPI-compatible serial I/O
• 1.8V to 2.5V I/O voltages, 5Msps throughput rate
• 8VP-P differential inputs with wide input common
• Integral linearity error is ±1LSB typical at (TA = 25°C)
• Signal-to-noise ratio is 80dB typical at (fIN = 2.2MHz, VREFOUT1,2 = 4.096V, internal reference)
• Total harmonic distortion is -85dB typ at (fIN = 2.2MHz, VREFOUT1,2 = 4.096V, internal reference)
• 10MHz typical -3dB input linear bandwidth at (TA = 25°C and AIN = -1dBFS)
• Supply current is 14.5mA typical at (5Msps sample rate (IN+ = IN– = 0V))
• Power dissipation is 55mW typ at (VDD = 3.3V 5Msps sample rate (IN+ = IN– = 0V) CMOS mode)
• Operating temperature range from -40°C to 85°C, 28-lead plastic QFN package

Notes

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