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| HA17901 Datasheet, PDF (7/16 Pages) Hitachi Semiconductor – Quadruple Comparators | |||
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HA17901, HA17339 Series
4. Voltage gain (AVD) test circuit (RL = 15kâ¦)
+V
VCC
20k
Vin
RL 15k
10k
30k
+
10µ â
+
20k
â
VO
50 50
âV
AVD
=
20
log
VO1
VIN1
â
â
VO2
VIN2
(dB)
5. Response time (tR) test circuit
VCC
+V Vin
24k
50
P.G
VR
5k
30k
50
âV
â RL 5.1k
+
120k SW
VO
12V
tR: RL = 5.1kâ¦, a 100mV input step voltage that has a 5mV overdrive
⢠With VIN not applied, set the switch SW to the off position and adjust VR so that VO is in the vicinity of
1.4V.
⢠Apply VIN and turn the switch SW on.
90%
10%
tR
7
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