Linear Technology’s LTC2314-14 is a 14-bit, 4,5 MSps successive approximation register (SAR) ADC in a tiny 8-lead TSOT-23 package. It integrates a precision 2,048 V/4,096 V reference with 7 ppm/°C typical and guaranteed 20 ppm/°C maximum temperature coefficient into an 8 mm² footprint.
The IC operates from a 3 V or 5 V supply and features power dissipation of 18 mW at 3 V or 31 mW at 5 V. With its serial SPI interface, it is ideal for a wide range of portable and space-constrained applications, including medical devices, communications systems and battery-operated systems.
Also available is the LTC2315-12, a 12-bit pin- and software-compatible version of the LTC2314-14, featuring a faster 5 MSps sample rate. The LTC2314-14 and LTC2315-12 lead a family of 14- and 12-bit SAR ADCs featuring sample rates from 500 KSps to 5 MSps with 77,5 dB SNR at 14 bits and 73 dB SNR at 12 bits resolution.
Accurate DC specifications include a maximum INL and DNL of ±3,75 LSB and ±0,99 LSB at 14 bits, and ±1,25 LSB and ±0,99 LSB at 12 bits, respectively. The complete LTC2314 family offers single-ended unipolar inputs, small 8-lead TSOT-23 packages, precision integrated reference and low power dissipation, along with nap and sleep modes for optimising the power within a system.
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