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LTC1851

Linear Technology
Part Number LTC1851
Manufacturer Linear Technology
Description 1.25Msps Sampling ADCs
Published May 29, 2010
Detailed Description LTC1850/LTC1851 8-Channel, 10-Bit/12-Bit, 1.25Msps Sampling ADCs DESCRIPTIO The 10-bit LTC®1850 and 12-bit LTC1851 are c...
Datasheet PDF File LTC1851 PDF File

LTC1851
LTC1851

Overview
LTC1850/LTC1851 8-Channel, 10-Bit/12-Bit, 1.
25Msps Sampling ADCs DESCRIPTIO The 10-bit LTC®1850 and 12-bit LTC1851 are complete 8-channel data acquisition systems.
They include a flexible 8-channel multiplexer, a 1.
25Msps successive approximation analog-to-digital converter with sample-and-hold, an internal 2.
5V reference and reference buffer amplifier, 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 with a sequence of up to 16 addresses and configurations that can be scanned in succession.
The sequence memory can also be read back.
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 40mW at 1.
25Msps from a single 5V supply.
, LTC and LT are registered trademarks of Linear Technology Corporation.
FEATURES Flexible 8-Channel Multiplexer s Single-Ended or Differential Inputs s Two Gain Ranges Plus Unipolar and Bipolar Operation s 1.
25Msps Sampling Rate s Single 5V Supply and 40mW Power Dissipation s Scan Mode and Programmable Sequencer s Pin Compatible 10-Bit LTC1850 and 12-Bit LTC1851 www.
DataSheet4U.
com s True Differential Inputs Reject Common Mode Noise s Internal 2.
5V Reference s Parallel Output Includes MUX Address s Easy Interface to 3V Logic s Nap and Sleep Shutdown Modes s U APPLICATIO S s s s s s s High Speed Data Acquisition Test and Measurement Imaging Systems Telecommunications Industrial Process Control Spectrum Analysis BLOCK DIAGRA CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 COM 2.
5V REFERENCE 8-CHANNEL MULTIPLEXER LTC1851 CONTROL LOGIC AND PROGRAMMABLE SEQUENCER I...


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