RS331, RS393, RS339
REV A.3
1
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General-Purpose Low-Voltage Open-Drain
Output Comparator
FEATURES
• Supply Range: +1.8V to +5.5V
• Low Supply Current
50μA (TYP) per channel at VS = 5V
• Input Common-Mode Voltage Range
Includes Ground
• Low Output Saturation Voltage 150mV
Typical
• Open-Drain Output for Maximum Flexibility
• SPECIFIED UP TO +85°C
• Micro SIZE PACKAGES: SOT23-5
APPLICATIONS
• Hysteresis Comparators
• Oscillators
• Window Comparators
• Industrial Equipment
• Test and Measurement
DESCRIPTION
The RS331 and RS393 is the single and dual
comparator version, the RS339 is quad comparator
version, and both are open-drain output comparators
for maximum flexibility. It can operate from 1.8V to
5.5V, and have low power consuming 50μA (TYP) per
channel.
The RS331, RS393 and RS339 are the most cost-
effective solutions for applications where low voltage
operation, low power and space saving are the primary
specifications in circuit design for portable consumer
products.
The RS331, RS393 and RS339 are available in Green
SOT23-5, SOIC-8, SOIC-14 and TSSOP-14 packages.
It operates over an ambient temperature range of -
40°C to +85°C.
Device Information
(1)
PART NUMBER
BODY SIZE (NOM)
RS331
1.60mm×2.92mm
RS393
4.90mm×3.90mm
RS339
8.65mm×3.90mm
5.00mm×4.40mm
(1) For all available packages, see the orderable addendum at the
end of the data sheet.
RS331, RS393, RS339
2
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Pin Configuration and Functions (Top View)
1
4
5
RS331
SOT23-5
OUT
V-
+IN
2
3
-IN
V+
+
-
Pin Description
NAME
PIN
I/O
(1)
DESCRIPTION
SOT23-5
+IN
1
I
Noninverting input
V-
2
P
Negative (lowest) power supply
-IN
3
I
Inverting input
OUT
4
O
Output
V+
5
P
Positive (highest) power supply
(1)I=Input, O=Output, P=Power
OUT A
-IN A
+IN A
V-
B
A
RS393
1
2
3
4
6
7
8
5
SOIC-8(SOP8)
+
+
V+
OUTB
-IN B
+IN B
Pin Description
NAME
PIN
I/O
(1)
DESCRIPTION
SOIC-8(SOP8)
OUTA
1
O
Output, channel A
-INA
2
I
Inverting input, channel A
+INA
3
I
Noninverting input, channel A
V-
4
P
Negative (lowest) power supply
+INB
5
I
Noninverting input, channel B
-INB
6
I
Inverting input, channel B
OUTB
7
O
Output, channel B
V+
8
P
Positive (highest) power supply
(1)I=Input, O=Output, P=Power