LTC2364-18

FEATURES n 250ksps Throughput Rate n ±2.5LSB INL (Max) n Guaranteed 18-Bit No Missing Codes n Low Power: 3.4mW at 250ksps, 3.4µW at 250sps n 97dB SNR (Typ) at fIN = 2kHz n –120dB THD (Typ) at fIN = 2kHz n Guaranteed Operation to 125°C n 2.5V Supply n Pseudo-Differential Unipolar Input Range: 0V to VREF n VREF Input Range from 2.5V to 5.1V n No Pipeline Delay, No Cycle Latency n 1.8V to 5V I/O Voltages n SPI-Compatible Serial I/O with Daisy-Chain Mode n Internal Conversion Clock n 16-Lead MSOP and 4mm × 3mm DFN Packages APPLICATIONS n Medical Imaging n High Speed Data Acquisition n Portable or Compact Instrumentation n Industrial Process Control n Low Power Battery-Operated Instrumentation n ATE LTC2364-18 18-Bit, 250ksps, PseudoDifferential Unipolar SAR ADC with 97dB SNR DESCRIPTION The LTC®2364-18 is a low noise, low power, high speed 18-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2364-18 has a 0V to VREF pseudo-differential unipolar input range with VREF ranging from 2.5V to 5.1V. The LTC2364-18 consumes only 3.4mW and achieves ±2.5LSB INL maximum, no missing codes at 18 bits with 97dB SNR. The LTC2364-18 has a high speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V and 5V logic while also featuring a daisy-chain mode. The fast 250ksps throughput with no cycle latency makes the LTC2364-18 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time...