ADC180C View Datasheet(PDF) - Thaler Corporation

Part Name

Description

Manufacturer

ADC180C

Programmable Integrating A/D Converter

Thaler Corporation 

TIMING DIAGRAMS

AutoZero

tAZ

tAC

*

S0

tTS

*

S1

* Data Request at logic 1, output enable (don’t care)

FIGURE 4. AUTO ZERO TIMING

duty cycle

/DR

S1

S0

data on D0 - D7

valid upon rising

edge of S0

S0

D0 - D7

tS1R

tDRA

tNDR

tDD

enlarged detail

tDC

tDV

FIGURE 5. DATA REQUEST CYCLE TIMING

SIGNAL

SYMBOL MIN TYP MAX UNITS

AutoZero request

tAZ

100

ns

Autozero Cycle

tAC

1.3

s

port TriState time

tTS

30

ms

Data Request Acknowledge

tDRA

*

*

S1 Response after duty cycle

tS1R

27

34

µs

Data Delay

tDD

50

µs

time before Next Data Request tNDR

0

µs

Data Valid

tDV

1

µs

Data Cycle

tDC

2

µs

* TDRA must be either 1 integration cycle minimum or until S1 goes high.

FIGURE 6. TIMING TABLE

ADC180DS REV H MAR 00

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