AD6644AST-40(Rev0) 데이터 시트보기 (PDF) - Analog Devices

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AD6644AST-40
(Rev.:Rev0)

14-Bit, 40 MSPS/65 MSPS A/D Converter

Analog Devices 

AD6644

EQUIVALENT CIRCUITS

VCH AVCC

AIN

500⍀

VCL

VCH AVCC

500⍀

AIN

BUF

BUF

BUF

T/H

VREF

T/H

VCL

Figure 2. Analog Input Stage

AVCC

AVCC

10k⍀

ENCODE

10k⍀

LOADS

AVCC

10k⍀

AVCC

ENCODE

10k⍀

LOADS

Figure 3. ENCODE Inputs

DVCC

CURRENT

MIRROR

VREF

DVCC

D0–D13, OVR, DRY

CURRENT

MIRROR

Figure 5. Digital Output Stage

2.4V

AVCC

AVCC

100␮A

VREF

Figure 6. 2.4 V Reference

AVCC

VREF

AVCC

AVCC

CURRENT

MIRROR

C1 OR C2

Figure 4. Compensation Pin, C1 or C2

10k⍀

10k⍀

DVCC

DMID

Figure 7. DMID Reference

–8–

REV. 0

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