ADT75 datasheet(4/24 Pages) AD

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ADT75

Rev. 0 | Page 4 of 24

SPECIFICATIONS

A GRADE

TA = TMIN to TMAX, VDD = 3.0 V to 5.5 V. All specifications for −55°C to +125°C, unless otherwise noted.

Table 1.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

TEMPERATURE SENSOR AND ADC

Accuracy at VDD = 3.0 V to 5.5 V

±2

°C

TA = −25°C to +100°C

±3

°C

TA = −55°C to +100°C

Accuracy at VDD = 3.0 V to 3.6 V

±3

°C

TA = +100°C to +125°C

Accuracy at VDD = 4.5 V to 5.5 V

±2

°C

TA = +100°C to +125°C

ADC Resolution

Bits

Temperature Resolution

0.0625

°C

Temperature Conversion Time

Update Rate

100

Conversion started every 100 ms

Long Term Drift

0.08

°C

Drift over 10 years, if part is operated at 55°C

Temperature Hysteresis

+0.03

°C

Temperature cycle = 25°C to 125°C to 25°C

OS/ALERT OUTPUT (OPEN DRAIN)

Output Low Voltage, VOL

0.4

IOL = 3 mA

Pin Capacitance

High Output Leakage Current, IOH

0.1

μA

OS/ALERT pin pulled up to 5.5 V

RON Resistance (Low Output)

Supply and temperature dependent

DIGITAL INPUTS

Input Current

±1

μA

VIN = 0 V to VDD

Input Low Voltage, VIL

0.3 × VDD

Input High Voltage, VIH

0.7 × VDD

SCL, SDA Glitch Rejection

Input filtering suppresses noise spikes of less

than 50 ns

Pin Capacitance

DIGITAL OUTPUT (OPEN DRAIN)

Output High Current, IOH

VOH = 5 V

Output Low Voltage, VOL

0.4

IOL = 3 mA

Output High Voltage, VOH

0.7 × VDD

Output Capacitance, COUT

POWER REQUIREMENTS

Supply Voltage

5.5

Supply Current at 3.3 V

350

500

μA

Peak current while converting and I2C interface

inactive

Supply Current at 5.0 V

380

525

μA

Peak current while converting and I2C interface

inactive

Average Current at 3.3 V

200

μA

Part converting and I2C interface inactive

Average Current at 5.0 V

225

μA

Part converting and I2C interface inactive

Shutdown Mode at 3.3 V

μA

Supply current in shutdown mode

Shutdown Mode at 5.0 V

5.5

μA

Supply current in shutdown mode

Average Power Dissipation

798.6

μW

VDD = 3.3 V, normal mode at 25°C

1 SPS

78.6

μW

Average power dissipated for VDD = 3.3 V, shutdown

mode at 25°C

140

μW

Average power dissipated for VDD = 5.0 V, shutdown

mode at 25°C

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