Datasheet > ADT7519ARQZ1-REEL7

ADT7519ARQZ1-REEL7

更新时间： 2022-11-26 05:13:39

品牌	Logo	应用领域
亚德诺 - ADI		传感器温度传感器
页数	文件大小	规格书
44页	1873K
描述
SPI/I2C Compatible, Temperature Sensor, Four Channel ADC and Quad Voltage Output DAC

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ADT7519ARQZ1-REEL7 数据手册

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ADT7516/ADT7517/ADT7519

Parameter¹

Min

Typ

Max

Unit

Conditions/Comments

THERMAL CHARACTERISTICS

External transistor = 2N3906.

EXTERNAL TEMPERATURE SENSOR

Accuracy @ V_DD= 3.3 V 10%

1.5

°C

T_A= 85°C.

T_A= 0°C +85°C.

T_A= –40°C to +120°C.

T_A= 0°C +85°C.

T_A= –40°C to +120°C.

Equivalent to 0.25°C.

High Level.

Accuracy @ V_DD= 5 V 5%

°C

Resolution

Output Source Current

Bits

µA

180

Low Level.

Thermal Voltage Output

8-Bit DAC Output

Resolution

°C

Scale Factor

8.97

17.58

mV/°C

0 V to V_REFoutput. T_A= –40°C to +120°C.

0 V to 2 V_REFoutput. T_A= –40°C to +120°C.

10-Bit DAC Output

Resolution

0.25

°C

Scale Factor

2.2

4.39

mV/°C

0 V to V_REFoutput. T_A= –40°C to +120°C.

0 V to 2 V_REFoutput. T_A= –40°C to +120°C.

Single channel mode.

CONVERSION TIMES

Slow ADC

V_DD/AIN

11.4

712

µs

Averaging (16 samples) on.

Averaging off.

Internal Temperature

External Temperature

11.4

712

24.22

1.51

µs

Averaging (16 samples) on.

Averaging off.

Averaging (16 samples) on.

Averaging off.

Fast ADC

V_DD/AIN

712

µs

Averaging (16 samples) on.

Averaging off.

Averaging (16 samples) on.

Averaging off.

Averaging (16 samples) on.

Averaging off.

44.5

2.14

134

14.25

890

Internal Temperature

External Temperature

ROUND ROBIN UPDATE RATE⁵

Slow ADC @ 25°C

Averaging On

Time to complete one measurement cycle

through all channels.

79.8

4.99

94.76

9.26

AIN1 and AIN2 are selected on Pins 7 and 8.

D+ and D– are selected on Pins 7 and 8.

D+ and D-– are selected on Pins 7 and 8.

Averaging Off

Averaging On

Averaging Off

Fast ADC @ 25°C

Averaging On

Averaging Off

Averaging On

Averaging Off

6.41

µs

AIN1 and AIN2 are selected on Pins 7 and 8.

D+ and D– are selected on Pins 7 and 8.

400.84

21.77

3.07

DAC EXTERNAL REFERENCE INPUT

V_REFInput Range

V_DD

Buffered reference.

V_REFInput Impedance

Reference Feedthrough

Channel-to-Channel Isolation

>10

–90

–75

MΩ

Buffered reference and power-down mode.

Frequency = 10 kHz.

Rev. A | Page 4 of 44

1 2 345 6 7...44

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