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LM393WDTSTN/a465avaiStandard Open-Collector Comparator


LM393WDT ,Standard Open-Collector ComparatorLM193W - LM293W LM393WLOW POWER DUAL VOLTAGE COMPARATORS

LM393WDT
Low power dual voltage comparators
1/10 WIDE SINGLE SUPPLY VOLTAGE RANGE
OR DUAL SUPPLIES : +2V TO +36V OR ±1V
TO ±18V VERY LOW SUPPLY CURRENT (0.4mA)
INDEPENDENT OF SUPPLY VOLTAGE
(1mW/comparator at +5V) LOW INPUT BIAS CURRENT : 25nA TYP LOW INPUT OFFSET CURRENT : ±5nA TYP LOW INPUT OFFSET VOLTAGE : ±1mV 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 ESD INTERNAL PROTECTION: 2kV
DESCRIPTION

These devices consist of two independent low
voltage comparators designed specifically to oper-
ate from a single supply over a wide range of volt-
ages. Operation 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.
All the pins are protected against electrostatic dis-
charge up to 2kV. As a consequence, the input
voltages must not exceed the magnitude of Vcc+
or Vcc-.

ORDER CODE
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)P = Thin Shrink Small Outline Package (TSSOP) - only available in Tape
&Reel (PT)
PIN CONNECTIONS (top view)
LM193W - LM293W
LM393W

LOW POWER DUAL VOLTAGE COMPARATORS
May 2004
LM193W - LM293W - LM393W
2/10
SCHEMATIC DIAGRAM (1/2 LM193)
ABSOLUTE MAXIMUM RATINGS
Short-circuits 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+.
LM193W - LM293W - LM393W
3/10
ELECTRICAL CHARACTERISTICS

VCC+ = +5V, VCC- = 0V, 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 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 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). The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals 300ns can be obtained
LM193W - LM293W - LM393W
4/10

LM193W - LM293W - LM393W
5/10

LM193W - LM293W - LM393W
6/10

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