AD5231 datasheet(8/24 Pages) AD

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REV. 0

AD5231

–8–

CODE – Decimal

256

512

768

1024

128

384

640

896

VDD = 2.7V, V SS = 0V

TA = 25 C

TPC 7. Wiper-On Resistance vs. Code

TEMPERATURE – C

–40

–20

100

–1

IDD @ V DD/VSS = 5V/0V

ISS @ V DD/VSS = 5V/0V

ISS @ V DD/VSS = 2.7V/0V

IDD @ V DD/VSS = 2.7V/0V

TPC 8. IDD vs. Temperature, RAB = 10 k

Ω

CLOCK FREQUENCY – MHz

0.25

048

0.20

0.15

0.10

0.05

0.00

VDD = 5V

VSS = 0V

MIDSCALE

ZERO-SCALE

FULL-SCALE

TPC 9. IDD vs. Clock Frequency, RAB = 10 k

Ω

FREQUENCY – Hz

–16

10k

–2

–4

–12

–6

–8

–10

–14

100k

–3dB = 370kHz, RAB = 10k

VA = 1mV rms

VDD / V SS = 2.5V

D = MIDSCALE

–3dB = 44kHz, R = 100k

–3dB = 85kHz, RAB = 50k

TPC 10. –3 Bandwidth vs. Resistance. Test Circuit in

Figure 16.

FREQUENCY – kHz

0.12

0.01

0.10

0.08

0.04

0.00

0.1

RAB = 10k

100k

VDD/VSS = 2.5V

VA = 1V rms

100

50k

0.06

0.02

TPC 11. Total Harmonic Distortion vs. Frequency

FREQUENCY– Hz

–50

–25

100k

10k

–5

–30

–35

–40

–45

–20

–10

–15

10M

CODE = 200H

100H

80H

40H

20H

10H

01H

02H

04H

08H

TPC 12. Gain vs. Frequency vs. Code, RAB = 10 k

Ω.

Test Circuit in Figure 18

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