ha17901at Renesas Electronics Corporation., ha17901at Datasheet - Page 9

• Manufacturer Part Number: ha17901at
• Description: Quadruple Comparators
• Manufacturer: Renesas Electronics Corporation.

HA17901A Series
HA17901A Application Examples
The HA17901A 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 HA17901A is particularly suited for single-voltage power supply applications. This section presents
several sample HA17901A applications.
1. Square-Wave Oscillator
Rev.1.00 Mar 10, 2006 page 9 of 15
The circuit shown in figure 1 has the same structure as a single-voltage power supply astable multivibrator. Figure
2 shows the waveforms generated by this circuit.
Horizontal: 2 V/div, Vertical: 5 s/div, V
(1)
V
CC
Figure 1 Square-Wave Oscillator
Figure 2 Operating Waveforms
75 pF
100 k
100 k
CC
C
= 5 V
HA17901A
+
V
Horizontal: 5 V/div, Vertical: 5 s/div, V
CC
100 k
100 k
R
V
4.3 k
CC
Vout
(2)
CC
= 15 V