ADT7408CCPZ-REEL7 Просмотр технического описания (PDF) - Analog Devices

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ADT7408CCPZ-REEL7

±2°C Accurate, 12-Bit Digital Temperature Sensor

Analog Devices 

ADT7408

SPECIFICATIONS

All specifications TA = −20°C to +125°C, VDD = 3.0 V to 3.6 V, unless otherwise noted.

Table 1.

Parameter

Symbol Min Typ Max Unit Test Conditions/Comments

TEMPERATURE SENSOR AND ADC

Local Sensor Accuracy (C Grade)

ADC Resolution

Temperature Resolution

Temperature Conversion Time

±0.5 ±2.0 °C

±1

±3.0 °C

±1

±4.0 °C

12

Bits

0.0625

°C

60

125 ms

75°C ≤ TA ≤ 95°C, 3.0 V ≤ VDD ≤ 3.6 V active range

40°C ≤ TA ≤ 125°C, 3.0 V ≤ VDD ≤ 3.6 V monitor range

−20°C ≤ TA ≤ 125°C, 3.0 V ≤ VDD ≤ 3.6 V

Long Term Drift

0.081

°C

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

EVENT# OUTPUT (OPEN DRAIN)

Output Low Voltage, VOL

Pin Capacitance

0.4 V

IOL = 3 mA

10

pF

High Output Leakage Current IOH

Rise Time1

tLH

Fall Time1

tHL

RON Resistance (Low Output)1

DIGITAL INPUTS

Input Current

IIH, IIL

Input Low Voltage

VIL

Input High Voltage

VIH

SCL, SDA Glitch Rejection1

Pin Capacitance1

0.1

30

30

15

−1

2.1

1

μA EVENT# = 3.6 V

ns

ns

Ω

Supply and temperature dependent

+1

μA

VIN = 0 V to VDD

0.8 V

3.0 V ≤ VDD ≤ 3.6 V

V

3.0 V ≤ VDD ≤ 3.6 V

50

ns

Input filtering suppresses noise spikes of less than 50 ns

10 pF

DIGITAL OUTPUT (OPEN DRAIN)

Output Low Current

IOL

6

mA SDA forced to 0.6 V

Output Low Voltage

VOL

0.4 V

3.0 V ≤ VDD ≤ 3.6 V at IOPULL_UP = 350 μA

Output High Voltage

VOH

2.1

V

Output Capacitance1

COUT

10 pF

POWER REQUIREMENTS

Supply Voltage

VDD

3.0 3.3

3.6 V

Average Supply Current

IDD

240 500 μA

Supply Current

IDD_CONV

360 550 μA Device current while converting

Shutdown Mode at 3.3 V

3

20 μA

Average Power Dissipation

PD

790

μW VDD = 3.3 V, normal mode at 25°C

1 Guaranteed by design and characterization, not production tested.

Rev. 0 | Page 3 of 24

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