
Linear Technology
DESCRIPTION
The LTC®1854/LTC1855/LTC1856 are 8-channel, low power, 12-/14-/16-bit, 100ksps, analog-to-digital converters (ADCs). These ADCs operate from a single 5V supply and the 8-channel multiplexer can be programmed for single-ended inputs, pairs of differential inputs, or combinations of both. In addition, all channels are fault protected to ±30V. A fault condition on any channel will not affect the conversion result of the selected channel.
FEATURES
■ Single 5V Supply
■ Sample Rate: 100ksps
■ 8-Channel Multiplexer with ±30V Protection
■ ±10V Bipolar Input Range Single Ended or Differential
■ ±3LSB INL for the LTC1856, ±1.5LSB INL for the LTC1855, ±1LSB INL for the LTC1854
■ Power Dissipation: 40mW (Typ)
■ SPI/MICROWIRETM Compatible Serial I/O
■ Power Shutdown: Nap and Sleep
■ SINAD: 87dB (LTC1856)
■ Operates with Internal or External Reference
■ Internal Synchronized Clock
■ 28-Pin SSOP Package
APPLICATIONS
■ Industrial Process Control
■ Multiplexed Data Acquisition Systems
■ High Speed Data Acquisition for PCs
■ Digital Signal Processing