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| 型號(hào)： | MNLM193A-X |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS |
| 中文描述： | 低功耗低失調(diào)電壓雙比較 |
| 文件頁(yè)數(shù)： | 4/12頁(yè) |
| 文件大小： | 172K |
| 代理商： | MNLM193A-X |
MNLM193A-X REV 1B3
MICROCIRCUIT DATA SHEET
(Continued)
Note 5:
This input current will only exist when the voltage at any of the input leads is
driven negative. It is due to the collector-base junction of the input PNP
transistors becoming forward biased and thereby acting as input diode clamps. In
addition to this diode action, there is also lateral NPN parasitic transistor action
on the IC chip. This transistor action can cause the output voltages of the
comparators to go to the V+ voltage level (or to ground for a large overdrive) for
the time duration that an input is driven negative. This is not destructive and
normal output states will re-establish when the input voltage, which was negative,
again returns to a value greater than -0.3Vdc.
Positive excursions of input voltage may exceed the power supply level. As long as
the other voltage remains within the common-mode range, the comparator will provide a
proper output state. The low input voltage state must not be less than -0.3Vdc (or
0.3Vdc below the magnitude of the negative power supply, if used).
Human body model, 1.5K Ohms in series with 100pF.
Note 6:
Note 7:
4
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