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LM2901HSTN/a2254avaiLOW POWER QUAD VOLTAGE COMPARATORS


LM2901H ,LOW POWER QUAD VOLTAGE COMPARATORSLM2901HLOW POWER QUAD VOLTAGE COMPARATORS ■ WIDE SINGLE SUPPLY VOLTAGE RANGEOR DUAL SUPPLIES ..
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LM2901H
LOW POWER QUAD VOLTAGE COMPARATORS
1/4 WIDE SINGLE SUPPLY VOLTAGE RANGE
OR DUAL SUPPLIES FOR ALL DEVICES:
+2V TO +36V OR ±1V TO ±18V VERY LOW SUPPLY CURRENT (1.1mA)
INDEPENDENT OF SUPPLY VOLTAGE
(1.4mW/comparator at +5V) LOW INPUT BIAS CURRENT: 25nA TYP LOW INPUT OFFSET CURRENT: ±5nA TYP INPUT COMMON-MODE VOLTAGE RANGE
INCLUDES GROUND LOW OUTPUT SATURATION VOLTAGE:
250mV TYP. (IO = 4mA) DIFFERENTIAL INPUT VOLTAGE RANGE
EQUAL TO THE SUPPLY VOLTAGE TTL, DTL, ECL, MOS, CMOS COMPATIBLE
OUTPUTS
DESCRIPTION

This device consists of four independent precision
voltage comparators. All these comparators were
designed specifically to operate from a single
power supply over a wide range of voltages. Oper-
ation from split power supplies is also possible.
These comparators also have a unique character-
istic in that the input common-mode voltage range
includes ground even though operated from a sin-
gle power supply voltage.
ORDER CODE

D = Small Outline Package (SO) - also available in Tape & Reel (DT)

PIN CONNECTIONS (top view)
LM2901H

LOW POWER QUAD VOLTAGE COMPARATORS
September 2003
2/4
SCHEMATIC DIAGRAM (1/4 LM2901)
PADS LOCATION
ABSOLUTE MAXIMUM RATINGS
Short-circuit from the output to Vcc + can cause excessive heating and eventual destruction. The maximum output current is approximately
20mA, independent of the magnitude of Vcc+ Maximum power dissipation has been calculated with Rthj-a= 150°C/W for SO14 package, TA=+25°C and TJ=+150°C
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ELECTRICAL CHARACTERISTICS

VCC+ = 5V, VCC- = GND, Tamb = 25°C (unless otherwise specified) At output switch point, VO ≈ 1.4V, RS = 0 with VCC+ from 5V to 30V, and over the full input common-mode range (0V to VCC+ –1.5V). 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
output, so no loading charge exists on the reference of input lines The input common-mode voltage of 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 VCC+ –1.5V, but either or both inputs can go to +30V without damage. The response time specified is for a 100mV input step with 5mV overdrive. 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 –0.3V (or 0.3V bellow the negative power supply, if used) Maximum values are guaranteed by design.
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its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
All other names are the property of their respective owners.
© 2003 STMicroelectronics - All Rights Reserved
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