LTC1854 Datasheet | Linear Technology

Features n Single 5V Supply n Sample Rate: 100ksps n 8-Channel Multiplexer with ±30V Protection n ±10V Bipolar Input Range Single Ended or Differential n ±3LSB INL for the LTC1856, ±1.5LSB INL for the LTC1855, ±1LSB INL for the LTC1854 n Power Dissipation: 40m W (Typ) n SPI/MICROWIRE™ patible Serial I/O n Power Shutdown: Nap and Sleep n SINAD: 87d B (LTC1856) n Operates with Internal or External Reference n Internal Synchronized Clock n 28-Pin SSOP Package Applications n Industrial Process Control n Multiplexed Data Acquisition Systems n High Speed Data Acquisition for PCs n Digital Signal Processing LTC1854/LTC1855/LTC1856 8-Channel, ±10V Input 12-/14-/16-Bit, 100ksps ADC Converters with Shutdown 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 binations 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. An onboard precision reference minimizes external ponents. Power dissipation is 40m W at 100ksps and lower in two power shutdown modes (27.5m W in Nap mode and 40µW in Sleep mode.) DC specifications include ±3LSB INL for the LTC1856, ±1.5LSB INL for the LTC1855 and ±1LSB for the LTC1854. The internal clock is trimmed for 5µs maximum conversion time and the sampling rate is guaranteed at 100ksps. A separate convert start input and data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical Application 100k Hz, 12-Bit/14-/16-Bit Sampling ADC SOFTWARE-PROGRAMMABLE SINGLE-ENDED OR DIFFERENTIAL INPUTS ±10V BIPOLAR INPUT RANGE CONVST CH0...