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dc682af

DEMO MANUAL DC682A

Description

LTC1859

8-Channel, 16-Bit,

100ksps SoftSpan ADC

Demonstration circuit 682A features the LTC®1859

8-channel, 16-bit SoftSpan™ ADC. The LTC1859 can be

software programmed for 0V to 5V, 0V to 10V, ±5V, or

±10V input spans while operating from a single 5V sup-

ply. The 8-channel multiplexer can be programmed for

single-ended inputs or differential pairs or a combination

of both. Also, the inputs are fault protected to ±25V. A

L

, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

SoftSpan and QuikEval are trademarks of Linear Technology Corporation. All other trademarks

are the property of their respective owners.

BoarD photo

fault condition on any channel will not affect readings on

other channels.

Design files for this circuit board are available at

http://www.linear.com/demo

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SINGLE-ENDED INPUT

DIFFERENTIAL INPUT

TO DC590

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REFERENCE MONITOR

(OR EXTERNAL REFERENCE–SEE HARDWARE SETUP)

Figure 1. DC682A Connection Diagram