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LM2901EP Arkusz danych(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Numer części LM2901EP
Szczegółowy opis  Low Power Low Offset Voltage Quad Comparators
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Producent  NSC [National Semiconductor (TI)]
Strona internetowa  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2901EP Arkusz danych(HTML) 4 Page - National Semiconductor (TI)

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Electrical Characteristics (Note 14)
(V
+ = 5.0 V
DC) (Note 8)
Parameter
Conditions
LM2901
Units
Min
Typ
Max
Input Offset Voltage
(Note 13)
9
15
mV
DC
Input Offset Current
I
IN(+)−IIN(−),VCM = 0V
50
200
nA
DC
Input Bias Current
I
IN(+) or IIN(−) with Output in
200
500
nA
DC
Linear Range, V
CM = 0V (Note 9)
Input Common-Mode
V
+ =30V
DC
0V
+−2.0
V
DC
Voltage Range
(Note 10)
Saturation Voltage
V
IN(−) =1VDC,VIN(+) = 0,
400
700
mV
DC
I
SINK
≤ 4mA
Output Leakage Current
V
IN(+) = 1VDC,VIN(−) = 0,
1.0
µA
DC
V
O =30VDC
Differential Input Voltage
Keep all V
IN’s
≥ 0V
DC (or V
,36
V
DC
if used), (Note 12)
Note 4: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
Note 5: For operating at high temperatures, the LM2901EP must be derated based on a 125˚C maximum junction temperature and a thermal resistance of 95˚C/W
which applies for the device soldered in a printed circuit board, operating in a still air ambient. The low bias dissipation and the “ON-OFF” characteristic of the outputs
keeps the chip dissipation very small (PD≤100 mW), provided the output transistors are allowed to saturate.
Note 6: Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output
current is approximately 20 mA independent of the magnitude of V+.
Note 7: 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 −0.3 VDC (at 25˚)C.
Note 8: These specifications are limited to −40˚C
≤ TA ≤ +85˚C, for the LM2901EP.
Note 9: The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the outputso
no loading change exists on the reference or input lines.
Note 10: The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the
common-mode voltage range is V+ −1.5V at 25˚C, but either or both inputs can go to +30 VDC without damage independent of the magnitude of V
+.
Note 11: The response time specified is a 100 mV input step with 5 mV overdrive. For larger overdrive signals 300 ns can be obtained, see typical performance
characteristics section.
Note 12: 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 −0.3 VDC (or 0.3 VDCbelow the magnitude of the negative power
supply, if used) (at 25˚C).
Note 13: At output switch point, VO.1.4 VDC,RS =0Ω with V
+ from 5 V
DC to 30 VDC; and over the full input common-mode range (0 VDC to V
+ −1.5 V
DC), at 25˚C.
Note 14: "Testing and other quality control techniques are used to the extent deemed necessary to ensure product performance over the specified temperature
range. Product may not necessarily be tested across the full temperature range and all parameters may not necessarily be tested. In the absence of specific
PARAMETRIC testing, product performance is assured by characterization and/or design."
Note 15: The LM139 within this data sheet’s graphics is referenced because of it’s a similarity to the LM2901, however is not offered in this data sheet.
www.national.com
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