LTC2185 datasheet(10/36 Pages) LINER

Part #	LTC2185

Description	12-Bit, 125Msps/105Msps/ 80Msps Low Power Dual ADCs

Download	36 Pages

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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10 / 36 page

LTC2145-12/

LTC2144-12/LTC2143-12

10

21454312p

TIMING DIAGRAMS

Double Data Rate LVDS Output Mode Timing

All Outputs Are Differential and Have LVDS Levels

tD

••

•

tD

tC

tL

BIT 0

A-6

BIT 1

A-6

BIT 0

A-5

BIT 1

A-5

BIT 0

A-4

BIT 1

A-4

BIT 0

A-3

BIT 1

A-3

BIT 0

A-2

BIT 10

A-6

BIT 11

A-6

BIT 10

A-5

BIT 11

A-5

BIT 10

A-4

BIT 11

A-4

BIT 10

A-3

BIT 11

A-3

BIT 10

A-2

ENC–

ENC+

D1_0_1+

D1_10_11+

••

•

BIT 0

B-6

BIT 1

B-6

BIT 0

B-5

BIT 1

B-5

BIT 0

B-4

BIT 1

B-4

BIT 0

B-3

BIT 1

B-3

BIT 0

B-2

BIT 10

B-6

BIT 11

B-6

BIT 10

B-5

BIT 11

B-5

BIT 10

B-4

BIT 11

B-4

BIT 10

B-3

BIT 11

B-3

BIT 10

B-2

OF

B-6

OF

A-6

OF

B-5

OF

A-5

OF

B-4

OF

A-4

OF

B-3

OF

A-3

OF

B-2

D2_0_1+

D2_10_11+

CLKOUT+

CLKOUT–

OF2_1+

D1_0_1–

D1_10_11–

D2_0_1–

D2_10_11–

OF2_1–

21454312 TD03

tH

tAP

A + 1

A + 2

A + 4

A + 3

A

CH 1

ANALOG

INPUT

tAP

B + 1

B + 2

B + 4

B + 3

B

CH 2

ANALOG

INPUT

A6

tS

tDS

A5

A4

A3

A2

A1

A0

XX

D7

D6

D5

D4

D3

D2

D1

D0

XX

CS

SCK

SDI

R/W

SDO

HIGH IMPEDANCE

SPI Port Timing (Readback Mode)

SPI Port Timing (Write Mode)

tDH

tDO

tSCK

tH

A6

A5

A4

A3

A2

A1

A0

D7

D6

D5

D4

D3

D2

D1

D0

21454312 TD04

CS

SCK

SDI

R/W

SDO

HIGH IMPEDANCE

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