ES5108F datasheet(7/15 Pages) ETC1

7 / 15 page

CYRUSTEK CO.

ES5108 3 1/2 Digit

ADC with serial output

continued from previous page

Parameter

Symbol

Test Condition

Min.

Typ.

Max.

Units

Analog COMMON Voltage

(with respect to V )

–

25K

Between

Common and Posi-

tive Supply

2.8

3.0

3.2

Analog COMMON Temper-

ature Cofﬁcient

–

25K

Between

Common

and

C TA

–

ppm/ C

Segment Drive Voltage

–

=9V

Back plane Drive Voltage

–

=9V

Supply Current (Does not

include COMMON current)

–

=0V

–

1.2

1.6

Frequency counter input

level

–

DGND

+1.5

Input terminals :

BZINM, BZINS, MAX/MIN, HOLD, RESET, FREQ/VOLT, CLK, DP1, DP2, DP3

Input logic high voltage

–

Input logic low voltage

–

DGND

+1.5

Pull down current

–

AC Characteristics

Characteristics

Symbol

Min.

Typ.

Max.

Unit

LCD display frequency

–

167

–

Operating frequency

–

KHz

Buzzer drive frequency

–

2.5

–

KHz

FREQ-IN Waveform Rising Time

–

FREQ-IN Waveform Falling Time

–

FREQ-IN Waveform Pulse Width

–

Clock Delay Time

–

5000

Data Set-up Time

–

500

EOC Pulse Width

–

Clock Pulse Width

500

–

MAX/MIN duration

0.8

–

sec

MAX/MIN and HOLD Keys

Key debounce time

–

Key hold time

–

July 4, 2002

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