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dc682af

DEMO MANUAL DC682A

harDware setup

Jumpers

JP1: Select connection for COM pin, either grounded or

externally supplied through the COM turret.

JP2: Select reference, either internal or the onboard

LT1019 reference.

Analog Connections (Turret Posts)

COM: LTC1859 COM pin. Make sure to select EXT on JP1

when supplying an external bias to this post.

CH0–CH7: Analog inputs to LTC1859. Each input is by-

passed to ground with a 1000pF capacitor.

the LTC1859 uses its internal reference, or an external

reference can be connected to this pin, overdriving the

internal reference. When JP2 is set to LT1019, this turret

should only be used for monitoring the reference voltage.

Grounding and Power Connections

DC682A does not require any external power source when

used with the DC590 USB controller board. However, an

and ground turrets if the power supply on DC590 has

been disabled. Refer to the DC590 demo manual for more

information.