ICL7641E 데이터 시트보기 (PDF) - Intersil

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ICL7641E

Dual/Quad, Low Power CMOS Operational Amplifiers

Intersil 

ICL7621, ICL7641, ICL7642

0.5µF

VIN 10kΩ

2.2MΩ

+

1/2

ICL7621

-

10µF

1.8k = 5%

SCALE

ADJUST

COMMON

20kΩ

20kΩ

1MΩ

VOH

TO

SUCCEEDING

INPUT

STAGE

VOL

-

1/2

ICL7621

+

+8V

+ V+

- V-

OUT

TA = 125oC

V+

-8V

FIGURE 5. AVERAGING AC TO DC CONVERTER FOR A/D

CONVERTERS SUCH AS ICL7106, ICL7107,

ICL7109, ICL7116, ICL7117

0.2µF

FIGURE 6. BURN-IN AND LIFE TEST CIRCUIT

0.2µF

0.2µF

30kΩ

160kΩ

INPUT

0.1µF

+

1/2

ICL7621

-

360kΩ

360kΩ

NOTE 4

680kΩ 100kΩ 51kΩ

0.2µF

0.1µF

1MΩ

+

1/2

ICL7621

-

1MΩ

NOTE 4

OUTPUT

NOTES:

4. Small capacitors (25 - 50pF) may be needed for stability in some cases.

5. The low bias currents permit high resistance and low capacitance values to be used to achieve low frequency cutoff. fC = 10Hz, AVCL = 4,

Passband ripple = 0.1dB.

FIGURE 7. FIFTH ORDER CHEBYCHEV MULTIPLE FEEDBACK LOW PASS FILTER

Typical Performance Curves

10K

TA = 25oC

NO LOAD

NO SIGNAL

1K

IQ = 1mA

104

V+ - V- = 10V

NO LOAD

NO SIGNAL

103

IQ = 1mA

IQ = 100µA

100

102

IQ = 100µA

IIQQ==110mµA

10

10

IQ = 10µA

1

0

2

4

6

8

10

12

14

16

SUPPLY VOLTAGE (V)

FIGURE 8. SUPPLY CURRENT PER AMPLIFIER vs SUPPLY

VOLTAGE

1

-50

-25

0

25

50

75

100 125

FREE-AIR TEMPERATURE (oC)

FIGURE 9. SUPPLY CURRENT PER AMPLIFIER vs FREE-AIR

TEMPERATURE

6

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