Datasheet > ADT7519_15

ADT7519_15

更新时间： 2022-02-26 12:22:37

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
44页	3247K
描述
SPI-/IC-Compatible, Temperature Sensor, 4-Channel ADC and Quad Voltage Output

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数据手册

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ADT7519_15 数据手册

ADT7516/ADT7517/ADT7519

Parameter¹

Min

Typ

Max

Unit

Conditions/Comments

External transistor = 2N3906

T_A= 85°C

T_A= 0°C to +85°C

T_A= −40°C to +120°C

T_A= 0°C to +85°C

T_A= −40°C to +120°C

Equivalent to 0.25°C

High level

External Temperature Sensor

Accuracy @ V_DD= 3.3 V 10%

1.5

°C

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

Time to complete one measurement cycle

through all channels

Slow ADC @ 25°C

Averaging On

Averaging Off

Averaging On

Averaging Off

79.8

4.99

94.76

9.26

AIN1 and AIN2 are selected on Pin 7 and Pin 8

D+ and D– are selected on Pin 7 and Pin 8

Fast ADC @ 25°C

Averaging On

Averaging Off

Averaging On

Averaging Off

6.41

μs

AIN1 and AIN2 are selected on Pin 7 and Pin 8

D+ and D– are selected on Pin 7 and Pin 8

400.84

21.77

3.07

DAC EXTERNAL REFERENCE INPUT⁴

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. B | Page 4 of 44

1 2 345 6 7...44

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