ADM1021–Typical Performance Characteristics

–4–

REV. 0

LEAKAGE RESISTANCE – M

30

20

–60

1

100

3.3

10

30

–10

–30

–40

–50

10

0

–20

DXP TO GND

Figure 2. Temperature Error vs. PC Board Track Resistance

FREQUENCY – Hz

6

–1

50

50M

500

5k

50k

500k

5M

5

4

3

1

0

2

250mV p-p REMOTE

100mV p-p REMOTE

Figure 3. Temperature Error vs. Power Supply Noise

Frequency

FREQUENCY – Hz

–5

50

50M

500

5k

50k

500k

5M

25

20

15

5

0

10

25mV p-p

50mV p-p

100mV p-p

Figure 4. Temperature Error vs. Common-Mode Noise

Frequency

MEASURED TEMPERATURE

0

110

10

20

30

40

50

120

20

30

0

10

40

50

60

70

80

90

100

60

70

80

90

100

Figure 5. Pentium II Temperature Measurement vs.

ADM1021 Reading

DXP-DXN CAPACITANCE – nF

25

20

–5

110

2.2

3.2

4.7

7

15

10

5

0

Figure 6. Temperature Error vs. Capacitance Between

D+ and D–

SCLK FREQUENCY – Hz

80

30

0

0

1M

1k

5k

10k

25k

50k

75k 100k 250k 500k 750k

70

40

20

10

60

50

Figure 7. Standby Supply Current vs. Clock Frequency