AP393SG-13 Diodes Inc, AP393SG-13 Datasheet - Page 12

• Manufacturer Part Number: AP393SG-13
• Description: IC COMP DUAL LOW POWER 8-SOIC
• Manufacturer: Diodes Inc
• Type: General Purposer

Specifications of AP393SG-13

• Number Of Elements: 2
• Output Type: CMOS, DTL, ECL, MOS, Open-Collector, TTL
• Voltage - Supply: 2 V ~ 36 V, ±1 V ~ 18 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Output Voltage: 2 V to 36 V
• Output Current: 16 mA
• Input Voltage: 0.3 V to 36 V
• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Number Of Outputs: 2
• Comparator Type: Low Power
• No. Of Comparators: 2
• Response Time: 1.3µs
• Ic Output Type: CMOS, MOS, TTL, DTL, ECL
• Output Compatibility: CMOS, MOS, DTL, ECL, TTL
• Supply Current: 1mA
• Supply Voltage Range: ± 1V To ± 18V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AP393SG-13; AP393SGTR

Application Information
lead is inadvertently allowed to capacitively couple to the inputs via stray capacitance. This shows up only during
the output voltage transition intervals as the comparator change states. Power supply bypassing is not required
to solve this problem. Standard PC board layout is helpful as it reduces stray input-output coupling. Reducing the
input resistors to < 10kΩ reduces the feedback signal levels and finally, adding even a small amount (1.0 to
10 mV) of positive feedback (hysteresis) causes such a rapid transition that oscillations due to stray feedback
are not possible. Simply socketing the IC and attaching resistors to the pins will cause input-output oscillations
during the small transition intervals unless hysteresis is used. If the input signal is a pulse waveform, with
relatively fast rise and fall times, hysteresis is not required. All input pins of any unused comparators should be
tied to the negative supply.
supply voltage over the range of from 2.0 V
across the power supply line.
should be provided to prevent the input voltages from going negative more than -0.3 V
clamp diode can be used as shown in the applications section.
collectors can be tied together to provide an output OR’ing function. An output pull-up resistor can be connected
to any available power supply voltage within the permitted supply voltage range and there is no restriction on this
voltage due to the magnitude of the voltage applied to the V
also be used as a simple SPST switch to ground (when a pull-up resistor is not used). The amount of current the
output device can sink is limited by the drive available (which is independent of V
When the maximum current limit is reached (approximately 16mA), the output transistor will come out of
saturation and the output voltage will rise very rapidly. The output saturation voltage is limited by the
approximately 60Ω r
output to clamp essentially to ground level for small load currents.
AP393
Document number: DS31006 Rev. 8 - 2
The AP393 is high gain, wide bandwidth devices, like most comparators, can easily oscillate if the output
The bias network of the AP393 establishes a drain current independent of the magnitude of the power
The differential input voltage may be larger than V+ without damaging the device (Note 11). Protection
The output of the AP393 is the uncommitted collector of a grounded-emitter NPN output transistor. Many
SAT
of the output transistor. The low offset voltage of the output transistor (1.0 mV) allows the
DC
to 30 V
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12 of 15
LOW POWER LOW OFFSET VOLTAGE DUAL
DC
. It is usually unnecessary to use a bypass capacitor
+
terminal of the AP393 package. The output can
+
) and the β of this device.
DC
COMPARATORS
(at 25°C). An input
© Diodes Incorporated
AP393
July 2010