MAX155AEWI(2012) データシートの表示（PDF） - Maxim Integrated

部品番号

コンポーネント説明

メーカー

MAX155AEWI
(Rev.:2012)

8-/4-Channel ADCs with Simultaneous T/Hs and Reference

Maxim Integrated 

MAX155/MAX156

8-/4-Channel ADCs with Simultaneous

T/Hs and Reference

CS

WR

RD

BUSY

D0-D7

tCONV

DATA IN

CH0

CH1

CH2

CH3

UPDATE CONFIGURATION

REGISTER AND BEGIN NEW

CONVERSION

ALL 8 CHANNELS ARE SAMPLED HERE

CONVERSION END

OF ALL 8 CHANNELS

THE FIRST RAM

LOCATION READ

IS CH 0

CONSECUTIVE RAM LOCATIONS ARE

ACCESSED BY CONSECUTIVE RD PULSES

NOTE: After power-up, and prior to the above

timing sequence, all single-ended channels must

be set up by writing the following data into the

configuration register. 8 WRs (see Figure 3) are

needed for 8 channels:

A0 A1 A2

000

100

010

110

001

101

011

111

PD INH BIP DIFF ALL

01S 0 0

01S 0 0

01S 0 0

01S 0 0

01S 0 0

01S 0 0

01S 0 0

01S 0 0

S = May be selected

Once the above data is loaded, all channels are

converted with a single WR to any address

(this is where the above timing diagram begins).

With INH = 0, and ALL = 0:

A0 A1 A2 PD INH BIP DIFF ALL

000 00S 0 0

Figure 4a. Input/Output Mode Timing–Eight Single-Ended Conversions

www.maximintegrated.com

Maxim Integrated │  11

Share Link: