AD7834SQ datasheet(8/16 Pages) AD

No. de pieza	AD7834SQ

Descripción Electrónicos	LC2MOS Quad 14-Bit DAC

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REV. A

–8–

AD7834/AD7835–Typical Performance Characteristics

CODE/1000

1.0

0.8

–1.0

0.4

0.2

0.0

–0.2

0.6

–0.4

–0.6

–0.8

02

16

46

8

10

12

14

Figure 3. Typical INL Plot

VREF(+) – Volts

0.5

0.45

0

0.35

0.3

0.25

0.2

0.4

0.15

0.1

0.05

08

2.5

5

DAC 1

DAC 3

DAC 4

DAC 2

TEMP = +25

°C

ALL DACs FROM 1 DEVICE

Figure 6. Typical INL vs. VREF(+)

(VREF(+) – VREF(–) = 5 V)

0.7

0.6

–0.2

0.4

0.3

0.2

0.1

0.5

0

–0.1

VERT = 100mV/DIV

HORIZ = 1µs/DIV

Figure 9. Typical Digital/Analog

Glitch Impulse

VREF(+) – Volts

0.9

0.8

0

0.6

0.5

0.2

0.1

0.7

0.4

0.3

8

01234567

Figure 5. Typical INL vs. VREF(+)

(VREF(–) = –6 V)

CODE/1000

1.0

0.8

–1.0

0.4

0.2

0.0

–0.2

0.6

–0.4

–0.6

–0.8

02

16

46

8

10

12

14

Figure 8. Typical DAC-to-DAC

Matching

8

6

–4

2

0

–2

4

–2.985

–3.005

–3.045

–3.065

–3.085

–3.025

VERT = 2V/DIV

HORIZ = 1µs/DIV

VERT = 10mV/DIV

HORIZ = 1µs/DIV

VREF(+) = +7V

VREF(–) = –3V

–3.105

Figure 11. Settling Time (–)

CODE/1000

0.5

0.4

–0.5

0.2

0.1

0.0

–0.1

0.3

–0.2

–0.3

–0.4

02

16

4

6

8

10

12

14

Figure 4. Typical DNL Plot

DAC 4

TEMPERATURE –

°C

0.8

0.7

0

–40

+85

+25

0.5

0.4

0.3

0.2

0.6

0.1

DAC 1

DAC 2

DAC 3

ALL DACs FROM ONE DEVICE

Figure 7. Typical INL vs.

Temperature

8

6

–4

2

0

–2

4

7.25

7.225

7.175

7.15

7.125

7.2

VERT = 2V/DIV

HORIZ = 1.2µs/DIV

VERT = 25mV/DIV

HORIZ = 2.5µs/DIV

VREF(+) = +7V

VREF(–) = –3V

7.1

Figure 10. Settling Time (+)

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