CS8191

http://onsemi.com

10

In some cases a designer may wish to use the CS8191 only

as a driver for an air–core meter having performed the F/V

conversion elsewhere in the circuit.

Figure 11 shows how to drive the CS8191 with a DC

voltage ranging from 2.0 V to 6.0 V. This is accomplished by

shown in Figure 12 uses an external op amp as a buffer and

operates over an input voltage range of 0 V to 4.0 V.

Figure 11. Driving the CS8191 from an External

DC Voltage

–

+

BIAS

100 k

Ω

10 k

Ω

N/C

CP–

2.0 V to 6.0 V DC

CS8191

Figures 11 and 12 are not temperature compensated.

Figure 12. Driving the CS8191 from an External

DC Voltage Using an Op Amp Buffer

+

–

CP–

100 k

Ω

0 V to 4.0 V DC

CS8191

BIAS

+

–

100 k

Ω

10 k

Ω

100 k

Ω

100 k

Ω