FEATURES
n 12-Bit Resolution n 500ksps Sampling Rate n Low Noise: SINAD = 73.3dB n Guaranteed No Missing Codes n Single 5V Supply n Auto-Shutdown Scales Supply Current with Sample Rate n Low Power: 17.5mW at 500ksps 0.9mW Nap Mode 35µW Sleep Mode n Internal Reference n Internal 8-Channel Multiplexer n Internal Conversion Clock n SPI/MICROWIRETM Compatible Serial Interface n Unipolar or Bipolar Input Ranges (Software Selectable) n Separate Output Supply OVDD (2.7V to 5.25V) n 24-Pin 4mm × 4mm QFN Package APPLICATIONS
n High Speed Data Acquisition n Industrial Process Control n Motor Control n Accelerometer Measurements n Battery Operated Instruments n Isolated and/or Remote Data Acquisition LTC2308 Low Noise, 500ksps, 8-Channel, 12-Bit ADC DESCRIPTION
The LTC®2308 is a low noise, 500ksps, 8-channel, 12-bit ADC with an SPI/MICROWIRE compatible serial interface. This ADC includes an internal reference and a fully differential sample-and-hold circuit to reduce common mode noise. The internal conversion clock allows the external serial output data clock (SCK) to operate at any frequency up to 40MHz.