H51019(2002) 데이터 시트보기 (PDF) - Intersil
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H51019 Datasheet PDF : 10 Pages
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7V. If the 5101 will be used in conditions where that voltage
may be exceeded, then current limiting resistors must be
used. No more than 25mA should be allowed to flow in the
HA-5101’s input.
Comparator Circuit
∆VIN
RLIM
2
∆VIN
RLIM
3
V+
7
-
6
+
4
V-
Choose RLIM Such That:
(---∆----V----I--N--2--M-5----mA----X-A----–-----7---V-----) ≤ 2RLIM
Output Saturation
When an op amp is overdriven, output devices can saturate
and sometimes take a long time to recover. Saturation can
be avoided (sometimes) by using circuits such as:
V+
R1
R2
+
-
R3
VSOURCE
R4
V-
Typical Performance Curves
8
7
6
5
4
VOLTAGE
3
2
CURRENT
1
0
10
100
1K
10K
FREQUENCY (Hz)
FIGURE 6. NOISE SPECTRUM
100K
If saturation cannot be avoided the HA-5101 recovers from a
25% overdrive in about 6.5µs (see photos).
IN
OUT
Top: Input
Bottom: Output, 5V/Div., 2µs/Div.
Output is overdriven negative and recovers in 6µs.
1500
1000
500
0
-50 -25
0
25
50
75
TEMPERATURE (oC)
100 125
FIGURE 7. OFFSET VOLTAGE vs TEMPERATURE
6
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