ADT7320UCPZ-R2 datasheet(4/25 Pages) AD

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Data Sheet

ADT7320

Rev. 0 | Page 3 of 24

SPECIFICATIONS

TA = −40°C to +125°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

0.0017

±0.202

°C

TA = −10°C to +85°C, VDD = 3.0 V

±0.25

°C

TA = −20°C to +105°C, VDD = 2.7 V to 3.3 V

±0.31

°C

TA = −40°C to +105°C, VDD = 3.0 V

±0.35

°C

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

±0.50

°C

TA = −40°C to +125°C, VDD = 2.7 V to 3.3 V

±0.503

°C

TA = −10°C to +105°C, VDD = 4.5 V to 5.5 V

±0.66

°C

TA = −40°C to +125°C, VDD = 4.5 V to 5.5 V

−0.85

°C

TA = +150°C, VDD = 4.5 V to 5.5 V

−1.0

°C

TA = +150°C, VDD = 2.7 V to 3.3 V

ADC Resolution

Bits

Twos complement temperature value of sign bit plus

12 ADC bits (power-up default resolution)

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 bits)

16-Bit

0.0078

°C

16-bit resolution (sign + 15 bits)

Temperature Conversion Time

240

Continuous conversion and one-shot conversion mode

Fast Temperature Conversion Time

First conversion on power-up only

1 SPS Conversion Time

Conversion time for 1 SPS mode

Temperature Hysteresis4

±0.002

°C

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

Repeatability5

±0.015

°C

TA = 25°C

Drift6

0.0073

°C

500 hour stress test at 150°C with VDD = 5.0 V

DC PSRR

0.1

°C/V

TA = 25°C

DIGITAL OUTPUTS (CT, INT), OPEN DRAIN

High Output Leakage Current, IOH

0.1

µA

CT and INT pins pulled up to 5.5 V

Output Low Voltage, VOL

0.4

IOL = 3 mA at 5.5 V, IOL = 1 mA at 3.3 V

Output High Voltage, VOH

0.7 × VDD

Output Capacitance, COUT

DIGITAL INPUTS (DIN, SCLK, CS)

Input Current

±1

µA

VIN = 0 V to VDD

Input Low Voltage, VIL

0.4

Input High Voltage, VIH

0.7 × VDD

Pin Capacitance

DIGITAL OUTPUT (DOUT)

Output High Voltage, VOH

VDD − 0.3

ISOURCE = ISINK = 200 µA

Output Low Voltage, VOL

0.4

IOL = 200 µA

Output Capacitance, COUT

POWER REQUIREMENTS

Supply Voltage

2.7

5.5

Supply Current

Peak current while converting, SPI interface inactive

At 3.3 V

210

265

µA

At 5.5 V

250

300

µA

1 SPS Current

1 SPS mode, TA = 25°C

At 3.3 V

µA

VDD = 3.3 V

At 5.5 V

µA

VDD = 5.5 V

ADT7320UCPZ-R2 数据表(PDF) 4 Page - Analog Devices

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