LTC2309
8-Channel, 12-Bit SAR ADC
with I2C Interface
Features Description 12-Bit Resolutio Low Power: 1.5mW at 1ksps, 35µW Sleep Mode
n 14ksps Throughput Rate
n Low Noise: SNR = 73.4dB
n Guaranteed No Missing Codes
n Single 5V Supply
n 2-Wire I2C Compatible Serial Interface with Nine
Addresses Plus One Global for Synchronizatio Fast Conversion Time: 1.3µs
n Internal Reference
n Internal 8-Channel Multiplexer
n Internal Conversion Clock
n Unipolar or Bipolar Input Ranges (Software Selectable)
n Guaranteed Operation from –40°C to 125°C (TSSOP Package)
n 24-Pin 4mm × 4mm QFN and 20-Pin TSSOP Packages The LTC®2309 is a low noise, low power, 8-channel, 12-bit
successive approximation ADC with an I2C compatible
serial interface. This ADC includes an internal reference
and a fully differential sample-and-hold circuit to reduce
common mode noise. The LTC2309 operates from an
internal clock to achieve a fast 1.3µs conversion time. n Applications n n n n Industrial Process Control
Motor Control
Accelerometer Measurements …