1-255

Figure 16. Common Mode Rejection

Test Circuit.

Figure 15. Output Supply Current vs.

Input Voltage.

Figure 18. Propagation Delays and

Rise/Fall Time vs. Temperature.

Figure 17. Propagation Delay, Rise/Fall Time and Bandwidth Test Circuit.

VIN+ – INPUT VOLTAGE – V

-4

-6

-8

-4

2

-2

0

2

VDD1 = 5 V

VDD2 = 5 V

VIN– = 0 V

TA = 25°C

-10

-2

0

-6

6

4

FS – FULL-SCALE INPUT VOLTAGE – V

0.50

5.00

±0.10

±0.20

VDD1 = 5 V

VDD2 = 5 V

0.01

TA = 85°C

0

±0.40

TA = -40°C

0.05

TA = 25°C

±0.30

VIN+ – INPUT VOLTAGE – V

9

11

-0.2

0

VDD1 = 5 V

VDD2 = 5 V

VIN– = 0 V

6

TA = 85°C

-0.4

0.4

0.2

TA = -40°C

TA = 25°C

10

8

7

Figure 12. Nonlinearity vs. Full-Scale

Input Voltage.

Figure 13. Input Current vs. Input

Voltage.

Figure 14. Input Supply Current vs.

Input Voltage.

VIN+ – INPUT VOLTAGE – V

10.0

-0.2

0

VDD1 = 5 V

VDD2 = 5 V

VIN– = 0 V

8.0

TA = 85°C

-0.4

0.4

0.2

TA = -40°C

9.0

TA = 25°C

9.5

8.5

0.1 µF

VDD2

VOUT

8

7

6

1

3

HCPL-7840

5

2

4

2 K

2 K

78L05

+15 V

0.1 µF

0.1 µF

-15 V

–

+

MC34081

150

pF

IN OUT

0.1

µF

0.1

µF

9 V

PULSE GEN.

VCM

+

–

10 K

10 K

150 pF

TA – TEMPERATURE – °C

9

-20

0

2

DELAY TO 90%

-40

100

20

RISE/FALL TIME

6

DELAY TO 50%

7

4

40

60

80

VIN– = 0 V

VIN+ = 0 TO 100 mV STEP

VDD1 = 5 V

VDD2 = 5 V

3

5

8

0.1 µF

VDD2

VOUT

8

7

6

1

3

HCPL-7840

5

2

4

2 K

2 K

+15 V

0.1 µF

0.1 µF

-15 V

–

+

MC34081

0.1 µF

10 K

10 K

0.01 µF

VDD1

VIN

VIN IMPEDANCE LESS THAN 10 Ω.