DS75 datasheet(5/14 Pages) MAXIM

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(-55°C to +125°C; 2.7V ≤ VDD ≤ 5.5V)

Note 1: All voltages are referenced to ground.

Note 2: Internal heating caused by O.S. loading will cause the DS75 to read approximately 0.5°C higher if O.S. is sinking the max

rated current.

Note 3: IDD specified with O.S. pin open.

Note 4: IDD specified with VDD at 5.0V and SDA, VSCL = 5.0V, 0°C to 70°C.

Note 5: See Timing Diagram in Figure 2. All timing is referenced to 0.9 x VDD and 0.1 x VDD.

Note 6: After this period, the first clock pulse is generated.

Note 7: For example, if CB = 300pF, then tR[min] = tF[min] = 50ns.

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNITS

Resolution

bits

Temperature Conversion Time

tCONVT

9-bit conversions

150

10-bit conversions

300

11-bit conversions

600

12-bit conversions

1200

SCL Frequency

fSCL

400

kHz

Bus Free Time Between a STOP

and START Condition

tBUF

(Note 5)

1.3

µs

START and Repeated START

Hold Time from Falling SCL

tHD:STA

(Notes 5, 6)

0.6

µs

Low Period of SCL

tLOW

(Note 5)

1.3

µs

High Period of SCL

tHIGH

(Note 5)

0.6

µs

Repeated START Condition

Setup Time to Rising SCL

tSU:STA

(Note 5)

0.6

µs

Data-Out Hold Time

from Falling SCL

tHD:DAT

(Note 5)

0.9

µs

Data-In Setup Time to

Rising SCL

tSU:DAT

(Note 5)

100

Rise Time of SDA and SCL

(Notes 5, 7)

20 + 0.1CB

1000

Fall Time of SDA and SCL

(Notes 5, 7)

20 + 0.1CB

300

STOP Setup Time to Rising SCL

tSU:STO

(Note 5)

0.6

µs

Capacitive Load for

Each Bus Line

400

Input Capacitance

DS75

Digital Thermometer and Thermostat

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