HA17901FPJ 查看數據表（PDF） - Renesas Electronics

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HA17901FPJ

Quadruple Comparators

Renesas Electronics 

HA17901 Series

HA17901 Application Examples

The HA17901 houses four independent comparators in a single package, and operates over a wide voltage range at low

power from a single-voltage power supply. Since the common-mode input voltage range starts at the ground potential,

the HA17901 is particularly suited for single-voltage power supply applications. This section presents several sample

HA17901 applications.

HA17901 Application Notes

1. Square-Wave Oscillator

The circuit shown in figure one has the same structure as a single-voltage power supply astable multivibrator.

Figure 2 shows the waveforms generated by this circuit.

100k

VCC

4.3k

75pF

VCC R

−

C

HA17901

VCC

+

100k

Vout

100k

100k

Figure 1 Square-Wave Oscillator

(1)

Horizontal: 2 V/div, Vertical: 5 µs/div, VCC = 5 V

(2)

Horizontal: 5 V/div, Vertical: 5 µs/div, VCC = 15 V

Figure 2 Operating Waveforms

Rev.1.00 Jun 15, 2005 page 8 of 12

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