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dc2290af

DEMO MANUAL DC2290A

Description

LTC2387/LTC2386/LTC2385

18-/16-Bit, 15Msps/10Msps/5Msps,

High Speed SAR ADCs

Demonstrationcircuit2290AfeaturestheLTC2387family.

Withupto15Msps,thesedifferentialinput,singlechannel,

18-/16-Bit, serial, high speed successive approximation

register(SAR)ADCsareavailableina32-PinQFNpackage.

The LTC2387 family has an internal 20ppm/°C reference

and a serial LVDS interface. The following text refers to

the LTC2387 but applies to all members of the family, the

only difference being the sample rate and the number of

bits. The DC2290A demonstrates the AC performance of

theLTC2387inconjunctionwiththeDC718datacollection

L

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

is a trademark of Linear Technology Corporation. All other trademarks are the property of their

respective owners.

BoarD photo

board. Differential amplifier demo boards are available

separately that provide amplification of low level differ-

ential signals if required (see Table 2). Alternatively, by

connecting the DC2290A into a customer application the

performance of the LTC2387 can be evaluated directly in

that circuit.

Design files for this circuit board are available at

http://www.linear.com/demo/DC2290A

Figure 1. DC2290A Connection Diagram

CLOCK SIGNAL

FROM GENERATOR

6VDC

POWER SUPPLY

SIGNAL

GENERATOR

TO DC718