HA17339F Hitachi Semiconductor (acquired by Renesas), HA17339F Datasheet - Page 10

• Manufacturer Part Number: HA17339F
• Description: Quadruple Comparators
• Manufacturer: Hitachi Semiconductor (acquired by Renesas)

HA17901, HA17339 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
10
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.
Horizontal: 2 V/div, Vertical: 5 s/div, V
(1)
V
CC
Figure 1 Square-Wave Oscillator
Figure 2 Operating Waveforms
100k
75pF
CC
100k
C
= 5 V
V
–
+
HA17901
CC
Horizontal: 5 V/div, Vertical: 5 s/div, V
100k
100k
R
V
4.3k
CC
Vout
(2)
CC
= 15 V