CA3193E Просмотр технического описания (PDF) - Intersil

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производитель

CA3193E

1.2MHz, BiCMOS Precision Operational Amplifiers

Intersil 

CA3193, CA3193A

Typical Applications (Continued)

V+

+15V

22M 22M 22M

THERMOCOUPLE

10K

0.1µF

7

3

+

CA3193 6

2-

5

4 -15V

1

20K

1K

20K

499K

10K

1K

VOUT

8.2K

2K

0-1mA

ALL RESISTORS ARE 1%.

ALL RESISTORS ARE IN OHMS.

FIGURE 11. THE CA3193 USED IN A THERMOCOUPLE CIRCUIT

The CA3193 is an excellent choice for use with generated signal 500 times. The three 22MΩ resistors will

thermocouples. In Figure 11, the CA3193 amplifies the provide full-scale output if the thermocouple opens.

Typical Performance Curves

400

CA3193 (0oC to 70oC)

300

CA3193A (-25oC to 85oC)

200

100

0

-50

0

50

100

150

TEMPERATURE (oC)

FIGURE 12. TYPICAL INPUT OFFSET VOLTAGE

TEMPERATURE CHARACTERISTIC

300

CA3193

200

CA3193A

100

0

0

500

1000

1500

TIME AT AMBIENT TEMPERATURE = 125oC (HOURS)

0

385

770

1155

EQUIVALENT TIME AT TEMPERATURE = 25oC (DAYS)

FIGURE 13. INPUT OFFSET VOLTAGE vs TIME

67

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