ADT7317ARQ-REEL7 Просмотр технического описания (PDF) - Analog Devices

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Компоненты Описание

производитель

ADT7317ARQ-REEL7

±0.5°C Accurate Digital Temperature Sensor and Quad Voltage Output 12-/10-/8-Bit DACs

Analog Devices 

0.30

0.25

INL WCP

0.20

0.15

0.10

0.05

DNL WCP

0

–0.05

DNL WCN

INL WCN

–0.10

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

VREF (V)

Figure 16. ADT7318 INL Error and DNL Error vs. VREF

0.14

INL WCP

0.12

0.10

0.08

INL WCN

0.06

0.04

DNL WCP

0.02

0

–0.02

–0.04

DNL WCN

–0.06

–40

–10

20

50

80

110

TEMPERATURE (°C)

Figure 17. ADT7318 INL Error and DNL Error vs. Temperature

0

–0.2

OFFSET ERROR

–0.4

–0.6

–0.8

–1.0

–1.2

–1.4

GAIN ERROR

–1.6

–1.8

–40 –20

0

20

40

60

80 100 120

TEMPERATURE (°C)

Figure 18. Offset Error and Gain Error vs. Temperature

ADT7316/ADT7317/ADT7318

10

OFFSET ERROR

5

0

VREF = 2.25V

–5

–10

–15

GAIN ERROR

–20

2.7

3.3

3.6

4.0

4.5

5.0

5.5

VDD (V)

Figure 19. Offset Error and Gain Error vs. VDD

2.505

2.500

2.495

SOURCE CURRENT

2.490

2.485

2.480

SINK CURRENT

2.475

2.470

VDD = 5V

VREF = 5V

DAC OUTPUT

LOADED TO MIDSCALE

2.465

0

1

2

3

4

5

6

CURRENT (mA)

Figure 20. VOUT Source and Sink Current Capability

1.98

DAC OUTPUT UNLOADED

1.96

1.94

1.92

1.90

DAC OUTPUT LOADED

1.88

1.86

0

500 1000 1500 2000 2500 3000 3500 4000

DAC CODE

Figure 21. Supply Current vs. DAC Code

Rev. B | Page 15 of 44

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