AD8842AR datasheet(6/13 Pages) AD

Il numero della parte	AD8842AR

Spiegazioni elettronici	8-Bit Octal, 4-Quadrant Multiplying, CMOS TrimDAC

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Produttore elettronici	AD [Analog Devices]

Homepage	http://www.analog.com

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6 / 13 page

REV.

–6–

AD8842–Typical Performance Characteristics

DIGITAL INPUT CODE – Decimal

+1/2

–1/2

+1/2

0

–1/2

0

256

0

192

128

64

DACs A, B, C, D SUPERIMPOSED

DACs E, F, G, H SUPERIMPOSED

TA = +25°C

VDD = +5V

VSS = – 5V

VINX = +3V

0

64

128

0.3

0.2

–0.1

0.1

0

–0.2

–0.3

–0.4

0.4

192

256

DIGITAL INPUT CODE – Decimal

VDD = +5V

VSS = –5V

VINX = +3V

DAC A

TA = –55 °C

TA = +125 °C

TA = +25 °C

0

–10

–20

–30

–40

10k

10M

100k

1M

FREQUENCY – Hz

–180

–315

0

–90

–45

–135

–225

–270

–360

GAIN

–FS

+FS

PHASE

CODE = ALL ONES

PHASE

CODE = ALL ZEROS

V

IN = ± 100mV

T

A = +25°C

1k

10k

100k

1M

10M

FREQUENCY – Hz

90

0

15

30

45

60

75

105

120

135

V

IN A = 100mVpp

V

IN B = 0V

T

A = +25°C

dB

INPUT A

OUTPUT B

Figure 4. Linearity Error vs.

Digital Code

Figure 5. Linearity Error vs.

Digital Code vs. Temperature

Figure 6. VOUT Half Scale (80H)

vs. Temperature

Figure 7. Input Resistance (VIN)

vs. Temperature

Figure 8. Total Harmonic Distortion

vs. Frequency

Figure 9. VOUT Slew Rate

vs. Temperature

Figure 10. Gain and Phase vs.

Frequency (Code = 00H or FFH)

Figure 11. DAC Crosstalk

vs. Frequency

Figure 12. Voltage Noise Density

vs. Frequency

–75

–50

–25

0

25

50

75

100

125

TEMPERATURE –

°C

8

0

VINX = –3V

6

4

2

–2

–4

–8

–10

VINX = +3V

VDD = +4.75V

VSS = –4.75V

21

–75

–50

100

125

TEMPERATURE –

°C

V

IN = +3V

20

19

18

17

16

–25

0

25

50

75

AVG

AVG +2

σ

AVG –2

σ

V

DD = +4.75V

V

SS = –4.75V

10

100

1k

10k

100k

FREQUENCY – Hz

0.001

100

10

1

0.1

0.01

R

L = 2kΩ

V

IN = +4Vp-p

f

LPF = 80kHz

CODE = FF

H

3

2

–75

–50

–25

25

VDD = +4.75V

VSS = –4.75V

∆VIN = ±3V

1

0

4

0

50

75

100 125

TEMPERATURE –

°C

SR+

SR–

1

0.4

0

10

100

100k

10k

1k

0.2

0.6

0.8

FREQUENCY – Hz

TA = +25°C

VIN = 0V

A

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