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LTC1852

Linear Technology
Part Number LTC1852
Manufacturer Linear Technology
Description Sampling ADCs
Published May 29, 2010
Detailed Description LTC1852/LTC1853 8-Channel, 10-Bit/12-Bit, 400ksps, Low Power, Sampling ADCs FEATURES Flexible 8-Channel Multiplexer Sing...
Datasheet PDF File LTC1852 PDF File

LTC1852
LTC1852


Overview
LTC1852/LTC1853 8-Channel, 10-Bit/12-Bit, 400ksps, Low Power, Sampling ADCs FEATURES Flexible 8-Channel Multiplexer Single-Ended or Differential Inputs Two Gain Ranges Unipolar or Bipolar Operation n Scan Mode and Programmable Sequencer Eliminate Configuration Software Overhead n Low Power: 3mW at 250ksps www.
DataSheet4U.
com n 2.
7V to 5.
5V Supply Range n Internal or External Reference Operation n Parallel Output Includes MUX Address n Nap and Sleep Shutdown Modes n Pin Compatible up-grade 1.
25Msps 10-Bit LTC1850 and 12-Bit LTC1851 n DESCRIPTION The 10-bit LTC®1852 and 12-bit LTC1853 are complete 8-channel data acquisition systems.
They include a flexible 8-channel multiplexer, a 400ksps successive approximation analog-to-digital converter, an internal reference and a parallel output interface.
The multiplexer can be configured for single-ended or differential inputs, two gain ranges and unipolar or bipolar operation.
The ADCs have a scan mode that will repeatedly cycle through all 8 multiplexer channels and can also be programmed to sequence through up to 16 addresses and configurations.
The sequence can also be read back from internal memory.
The reference and buffer amplifier provide pin strappable ranges of 4.
096V, 2.
5V and 2.
048V.
The parallel output includes the 10-bit or 12-bit conversion result plus the 4-bit multiplexer address.
The digital outputs are powered from a separate supply allowing for easy interface to 3V digital logic.
Typical power consumption is 10mW at 400ksps from a single 5V supply and 3mW at 250ksps from a single 3V supply.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
APPLICATIONS n n n n n n High Speed Data Acquisition Test and Measurement Imaging Systems Telecommunications Industrial Process Control Spectrum Analysis BLOCK DIAGRAM LTC1853 CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 COM 2.
5V REFERENCE 8-CHANNEL MULTIPLEXER INTERNAL CLOCK CONTROL LOGIC AND PROGRAMMABLE SEQUENCER M1 SHDN CS CONVST RD WR DIFF A2 A1 A0 UNI/...


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