Rainbow-electronics DS1620 Manual do Utilizador descarregar pdf (Página 11)

DS1620

11 of 13

DC ELECTRICAL CHARACTERISTICS (-55°C to +125°C; V

DD

=2.7V to 5.5V)

PARAMETER SYMBOL CONDITION MIN MAX UNITS NOTES

Thermometer Error T

ERR

0°C to +70°C

-55°C to +0°C

and 70°C to

125°C

±½ °C

See Typical Curve

10, 11

Logic 0 Output V

OL

0.4 V 3

Logic 1 Output V

OH

2.4 V 2

Input Resistance R

I

RST to GND

DQ, CLK to V

DD

1

1

MΩ

MΩ

Active Supply Current I

CC

0°C to +70°C 1 mA 4, 5

Standby Supply Current I

STBY

0°C to +70°C 1 µA 4, 5

SINGLE CONVERT TIMING DIAGRAM (STAND-ALONE MODE)

AC ELECTRICAL CHARACTERISTICS (-55°C to +125°C; V

DD

=2.7V to 5.5V)

PARAMETERS SYMBOL MIN TYP MAX UNITS NOTES

Temperature Conversion Time T

TC

400 1000 ms

Data to CLK Setup t

DC

35 ns 6

CLK to Data Hold t

CDH

40 ns 6

CLK to Data Delay t

CDD

100 ns 6, 7, 8

CLK Low Time t

CL

285 ns 6

CLK High Time t

CH

285 ns 6

CLK Frequency f

CLK

DC 1.75 MHz 6

CLK Rise and Fall t

R

, t

F

500 ns

RST to CLK Setup

t

CC

100 ns 6

CLK to RST Hold

t

CCH

40 ns 6

RST Inactive Time

t

CWH

125 ns 6, 9

CLK High to I/O High-Z t

CDZ

50 ns 6

RST Low to I/O High-Z

t

RDZ

50 ns 6

Convert Pulse Width t

CNV

250 ns 500 ms

NV Write Cycle Time t

WR

10 50 ms 12

AC ELECTRICAL CHARACTERISTICS (-55°C to +125°C; V

DD

=2.7V to 5.5V)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Input Capacitance C

I

5 pF

I/O Capacitance C

I/O

10 pF

t

CNV

CONV

1 2 ... 6 7 8 9 10 11 12 13

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