GS393/393A
LOW POWER LOW OFFSET VOLTAGE DUAL COMPARATORS
Features
Wide Supply Voltage Range
Single Supply: 2.0V to 36V
Dual Supplies: ±1.0V to ±18V
Low Supply Current Drain: 0.6mA
Low Input Bias Current: 25nA (Typical)
Low Input Offset Current: ±5.0nA (Typical)
Low Input Offset Voltage: 1.0mV (Typical)
Input Common Mode Voltage Range Includes
Ground
Differential Input Voltage Range Equals to the
Power Supply Voltage
Low Output Saturation Voltage: 200mV at 4mA
Open Collector Output
Small Package:
GS393/393A Available in SOP-8 and DIP-8 Packages
General Description
The GS393/393A consist of two independent precision voltage comparators with a typical offset voltage of 1.0mV
and high gain. They are specifically designed to operate from a single power supply over wide range of voltages.
Operation from split power supply is also possible and the low power supply current drain is independent of the
magnitude of the power supply voltage.The GS393/393A series are compatible with industry standard 393. GS393A
has more stringent input offset voltage than GS393.
Applications
Battery Charger
Cordless Telephone
Switching Power Supply
DC-DC Module
PC Motherboard
Communication Equipment
Pin Configuration
Figure 1. Pin Assignment Diagram
Functional Block Diagram
Figure 2. Functional Block Diagram of GS393/393A (Each comparator)
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GS393/393A
Absolute Maximum Ratings
Condition
Power Supply Voltage
Differential input voltage
Input Voltage
Operating Temperature Range
Storage Temperature Range
Symbol
Max
20V or 40V
40V
V
I(DIFF)
V
I
Topr
Tstg
-25°C ~+125°C
-65°C ~+150°C
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated
under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Max-imum Ratings" for extended periods may
affect device reliability.
Note 2: 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).
Package/Ordering Information
MODEL
CHANNEL
ORDER NUMBER
GS393-SR
GS393-DR
GS393A-SR
GS393A-DR
PACKAGE
DESCRIPTION
SOP-8
DIP-8
SOP-8
DIP-8
PACKAGE
OPTION
Tape and Reel,4000
20Tube(1000pcs)
Tape and Reel,4000
20Tube(1000pcs)
MARKING
INFORMATION
GS393
GS393
GS393
GS393
GS393
Dual
GS393A
Dual
V0
±
Vcc
-0.3V~40V
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GS393/393A
Recommended Operating Conditions
Electrical Characteristics
Limits in standard typeface are for TA=25
C,
bold typeface applies over TA=-40
C
to 85
C
(Note 3), VCC=5V, GND=0V, unless
otherwise specified.
o
o
o
tested in production.
o
Note 4: The input common-mode voltage of either input signal voltage should not be allowed to go negatively by
more than 0.3V (at 25
C).
The upper end of the common-mode voltage range is VCC-1.5V (at 25
C),
but either or
both inputs can go to +36V without damages,
independent of the magnitude of the VCC.
o
V0
≤
≤
Note 3: These specifications are limited to -40
C
o
TA
85
C.
Limits over temperature are guaranteed by design, but not
o
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GS393/393A
Typical Performance characteristics
V0
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GS393/393A
Typical Performance characteristics
V0
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