LTC2272I View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC2272I

16-Bit, 80Msps/65Msps Serial Output ADC

Linear Technology 

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BLOCK DIAGRAM

LTC2273/LTC2272

AIN+

+

S/H

AND PGA

AIN– –

FIRST

STAGE

PIPELINED ADC STAGES

SECOND

STAGE

THIRD

STAGE

FOURTH

STAGE

FIFTH

STAGE

FAM

8B/10B

ENCODER

16

SYNC+

SYNC–

DITHER SIGNAL

GENERATOR

20

CORRECTION

LOGIC

OVDD

REFERENCE

CONTROL

SENSE

0.5x

VCM

1x OR 2x

ADC

REFERENCE

2.5V

REFERENCE

CLOCK DRIVER

WITH DUTY CYCLE

CONTROL

ENC+

ENC– PGA

CONTROL LOGIC

DITH

MSBINV SHDN

SERIALIZER

CMLOUT+

CMLOUT–

20X CLK

SCRAMBLER/

PATTERN

GENERATOR

PAT1 PAT0

SCRAM

VDD

PLL

SRR1 SRR0 GND

22732 BD

Figure 1. Functional Block Diagram

22732f

17

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