ADT7519ARQZ-REEL Просмотр технического описания (PDF) - Analog Devices

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Компоненты Описание

производитель

ADT7519ARQZ-REEL

SPI-/I2C-Compatible, Temperature Sensor, 4-Channel ADC and Quad Voltage Output

Analog Devices 

ADT7516/ADT7517/ADT7519

0

VDD = 5V

TA = 25°C

–2

–4

–6

–8

–10

–12

1

2

3

4

5

VREF (V)

Figure 26. DAC Full-Scale Error vs. VREF

2.329

2.328

2.327

VDD = 5V

VREF = 5V

DAC OUTPUT LOADED

TO MIDSCALE

2.326

2.325

2.324

2.323

2.322

0

1

2

3

4

5

TIME (µs)

Figure 27. DAC-to-DAC Crosstalk

1.0

0.8

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

–1.0

0

200

400

600

800

1000

ADC CODE

Figure 28. ADC INL with VREF = VDD (3.3 V)

0

±100mV RIPPLE ON VCC

–10

VREF = 2.25V

VDD = 3.3V

TEMPERATURE = 25°C

–20

–30

–40

–50

–60

1

10

100

FREQUENCY (kHz)

Figure 29. PSRR vs. Supply Ripple Frequency

1.5

EXTERNAL TEMPERATURE @ 5V

INTERNAL TEMPERATURE @ 3.3V

1.0

0.5

0

–0.5

EXTERNAL TEMPERATURE @ 3.3V

INTERNAL TEMPERATURE @ 5V

–1.0

–30

0

40

85

120

TEMPERATURE (°C)

Figure 30. Internal Temperature Error @ 3.3 V and 5 V

3

VDD = 3.3V

2

1

OFFSET ERROR

0

–1

GAIN ERROR

–2

–3

–4

–40 –20 0

20 40

60 80

TEMPERATURE (°C)

100 120

Figure 31. ADC Offset Error and Gain Error vs. Temperature

Rev. B | Page 14 of 44

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