MAX189ACWE(2012) Ver la hoja de datos (PDF) - Maxim Integrated

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Fabricante

MAX189ACWE
(Rev.:2012)

+5V, Low-Power, 12-Bit Serial ADCs

Maxim Integrated 

MAX187/ MAX189

+5V, Low-Power, 12-Bit Serial ADCs

CS

SCLK

DOUT

INTERFACE IDLE

A/D

TRACK

STATE

MINIMUM

CYCLE TIME

CONVERSION

IN PROGRESS

CONVERSION

0

8.5µs

(tCONV)

1

4

8

12

EOC

EOC

B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0

CLOCK OUTPUT DATA

TRACK

0µs

12 x 0.250µs = 3.25µs

TOTAL = 12.25µs

Figure 8. MAX187/MAX189 Interface Timing Sequence

TRAILING

ZEROS

IDLE

0.5µs

0µs

(tCS)

CONV. 1

CS

tCS0

SCLK

tDO

tCONV

tDV

DOUT

tAPR

INTERNAL

T/H

(TRACK)

(HOLD)

Figure 9. MAX187/MAX189 Detailed Serial-Interface Timing

tCS

tCH

tCL

tTR

B2

B1

B0

(TRACK)

Maxim Integrated

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