LTC2306 Datasheet | Linear Technology

Features n 12-Bit Resolution n 500ksps Sampling Rate n Low Noise: SINAD = 72.8d B n Guaranteed No Missing Codes n Single 5V Supply n Auto-Shutdown Scales Supply Current with Sample Rate n Low Power: 14m W at 500ksps 70µW at 1ksps 35µW Sleep Mode n 1-Channel (LTC2302) and 2-Channel (LTC2306) Versions n Unipolar or Bipolar Input Ranges (Software Selectable) n Internal Conversion Clock n SPI/MICROWIRE patible Serial Interface n Separate Output Supply OVDD (2.7V to 5.25V) n Software patible with the LTC2308 n 10-Pin (3mm × 3mm) DFN 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 LTC2302/LTC2306 Low Noise, 500ksps, 1-/2-Channel, 12-Bit ADCs Description The LTC®2302/LTC2306 are low noise, 500ksps, 1‑/2‑chan‑ nel, 12-bit ADCs with an SPI/MICROWIRE patible serial interface. These ADCs include a fully differential sample-and-hold circuit to reduce mon mode noise. The internal conversion clock allows the external serial output data clock (SCK) to operate at any frequency up to 40MHz. The LTC2302/LTC2306 operate from a single 5V supply and draw just 2.8m A at a sample rate of 500ksps. The auto-shutdown feature reduces the supply current to 14µA at a sample rate of 1ksps. The LTC2302/LTC2306 are packaged in a tiny 10-pin 3mm × 3mm DFN. The low power consumption and small size make the LTC2302/LTC2306 ideal for battery-operated and portable applications, while the 4-wire SPI pat‑ ible serial interface makes these ADCs a good match for isolated or remote data acquisition systems. TYPE Int Reference Ext Reference NUMBER OF INPUT CHANNELS LTC2308 LTC2302 L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical Application 5V 10µF 0.1µF 0.1µF 2.7V TO 5.25V VDD...