ADT7310_17 datasheet(4/25 Pages) AD

部件名	ADT7310

功能描述	16-Bit Digital SPI Temperature Sensor

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制造商	AD [Analog Devices]

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Data Sheet

ADT7310

Rev. A | Page 3 of 24

SPECIFICATIONS

TA = −55°C to +150°C; VDD = 2.7 V to 5.5 V; unless otherwise noted.

Table 1.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

TEMPERATURE SENSOR AND ADC

Accuracy1

−0.05

±0.42

°C

TA = −40°C to +105°C, VDD = 3.0 V

±0.44

°C

TA = −40°C to +105°C, VDD = 2.7 V to 3.3 V

±0.5

°C

TA = −55°C to +125°C, VDD = 3.0 V

±0.5

°C

TA = −40°C to +105°C, VDD = 2.7 V to 3.6 V

±0.7

°C

TA = −55°C to +150°C, VDD = 2.7 V to 3.6 V

±0.8

°C

TA = −40°C to +105°C, VDD = 4.5 V to 5.5 V

±1.0

°C

TA = −55°C to +150°C, VDD = 2.7 V to 5.5 V

ADC Resolution

13

Bits

Twos complement temperature value of sign bit plus 12 ADC bits

(power-up default resolution)

16

Bits

Twos complement temperature value of sign bit plus 15 ADC bits

(Bit 7 = 1 in the configuration register)

Temperature Resolution

13-Bit

0.0625

°C

13-bit resolution (sign + 12-bit)

16-Bit

0.0078

°C

16-bit resolution (sign + 15-bit)

Temperature Conversion Time

240

ms

Continuous conversion and one-shot conversion mode

Fast Temperature Conversion Time

6

ms

First conversion on power-up only

1 SPS Conversion Time

60

ms

Conversion time for 1 SPS mode

Temperature Hysteresis

±0.002

°C

Temperature cycle = 25°C to 125°C, and back to 25°C

Repeatability3

±0.015

°C

TA = 25°C

DC PSRR

0.1

°C/V

TA = 25°C

DIGITAL OUTPUTS (OPEN DRAIN)

High Output Leakage Current, IOH

0.1

5

µA

CT and INT pins pulled up to 5.5 V

Output High Current

1

mA

VOH = 5 .5V

Output Low Voltage, VOL

0.4

V

IOL = 2 mA @ 5.5 V, IOL = 1 mA @ 3.3 V

Output High Voltage, VOH

0.7 × VDD

V

Output Capacitance, COUT

3

pF

DIGITAL INPUTS

Input Current

±1

µA

VIN = 0 V to VDD

Input Low Voltage, VIL

0.4

V

Input High Voltage, VIH

0.7 × VDD

V

Pin Capacitance

5

10

pF

DIGITAL OUTPUT (DOUT)

Output High Voltage, VOH

VOH − 0.3

V

ISOURCE = ISINK = 200 µA

Output Low Voltage, VOL

0.4

V

IOL = 200 µA

Output Capacitance, COUT

50

pF

POWER REQUIREMENTS

Supply Voltage

2.7

5.5

V

Supply Current

At 3.3 V

210

250

µA

Peak current while converting, SPI interface inactive

At 5.5 V

250

300

µA

Peak current while converting, SPI interface inactive

1 SPS Current

At 3.3V

46

µA

VDD = 3.3 V, 1 SPS mode, TA = 25°C

At 5.5V

65

µA

VDD = 5.5 V, 1 SPS mode, TA = 25°C

Shutdown Current

At 3.3 V

2.0

15

µA

Supply current in shutdown mode

At 5.5 V

5.2

25

µA

Supply current in shutdown mode

Power Dissipation Normal Mode

700

µW

VDD = 3.3 V, normal mode at 25°C

Power Dissipation 1 SPS

150

µW

Power dissipated for VDD = 3.3 V, TA = 25°C

1

Accuracy includes lifetime drift.

2

The equivalent 3 σ limits are ±0.33°C. This 3 σ specification is provided to enable comparison with other vendors who use these limits.

3

Based on a floating average of 10 readings.

类似零件编号 - ADT7310_17

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