GM339
LOW POWER QUAD DIFFERENTIAL COMPARATOR
Revision 1, May 2002 www.gammamicro.com
PRELIMINARY
1
PIN CONNECTIONS
1
2
3
4
5
6
7
14
13
12
11
10
9
OUTPUT 1
GND
V
CC
8
+
-
1
OUTPUT 3
OUTPUT 4
OUTPUT 2
INPUT 1-
INPUT 1+
INPUT 2+
INPUT 2-
INPUT 3+
INPUT 4+
INPUT 3-
INPUT 4-
+
-
2
+
-
+
-
4
3
SOP-14, DIP-14 (TOP VIEW)
The GM339 series consists of four independent precision
voltage comparators with an offset voltage specification
as low as 2 mV max for all four comparators. These
were designed specifically to operate from a single power
supply over a wide range of voltages. Operation from split
power supplies is also possible and the low power supply
current drain is independent of the magnitude of the power
supply voltage. These comparators also have a unique
characteristic in that the input common-mode voltage
range includes ground, even though operated from a single
power supply voltage.
Application areas include limit comparators, simple
analog to digital converters; pulse, squarewave and time
delay generators; wide range VCO; MOS clock timers;
multivibrators and high voltage digital logic gates. The
GM339 series was designed to directly interface with
TTL and CMOS. When operated from both plus and minus
power supplies, they will directly interface with MOS logic,
where the low power drain of the GM339 is a distinct
advantage over standard comparators.
The GM339 is available in DIP-14 and SOP-14 packages.
Wide supply voltage range
Very low supply current drain (0.8 mA) -- independent of supply voltage
Low input biasing current: 25 nA
Low input offset current: 5 nA
Offset voltage: 3 mV
Input common-mode voltage range includes GND
Differential input voltage range equal to the power supply voltage
Low output saturation voltage: 250 mV at 4 mA
Output voltage compatible with TTL, DTL, ECL, MOS and CMOS logic systems
Advantages:
High precision comparators
Reduced VOS drift over temperature
Eliminates need for dual supplies
Allows sensing near GND
Compatible with all forms of logic
Power drain suitable for
battery operation
GM339
LOW POWER QUAD DIFFERENTIAL COMPARATOR
Revision 1, May 2002 www.gammamicro.com
PRELIMINARY
2
R
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C
ABSOLUTE MAXIMUM
RATINGS
-
+
-
+
1M
100k
10M
10M
560k
240k
15k
62k
100pF
1/4 GM339
1/4 GM339
1M
100k
+V
IN
1
s
0
+4 V
V
CC
V
O
V
CC
40
s
0
One-Shot Multivibrator with Input Lock Out
TYPICAL APPLICATION DIAGRAM
GM339
LOW POWER QUAD DIFFERENTIAL COMPARATOR
Revision 1, May 2002 www.gammamicro.com
PRELIMINARY
3
S
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.
2
ELECTRICAL CHARACTERISTICS
(V
CC
= 5V, at specified free-air temperature, unless otherwise specified )
* All characteristics are measured under open loop conditions with zero common-mode input voltage unless otherwise specified.
Full range is 0C to 70C.
** The voltage at either input or common-mode 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.
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.
0
SWITCHING CHARACTERISTICS
* C
L
includes probe and jig capacitance.
NOTE 1: The response time specified is the interval between the input step function and the instant when the output crosses 1.4V.
GM339
LOW POWER QUAD DIFFERENTIAL COMPARATOR
Revision 1, May 2002 www.gammamicro.com
PRELIMINARY
4
9
3
3
M
G
E
G
A
K
C
A
P
4
1
P
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4
1
P
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4
1
S
9
3
3
M
G
4
1
D
9
3
3
M
G
ORDERING INFORMATION
GM339
LOW POWER QUAD DIFFERENTIAL COMPARATOR
Revision 1, May 2002 www.gammamicro.com
PRELIMINARY
5
SOP-14 PACKAGE OUTLINE DIMENSIONS
NOTE
1. PACKAGE BODY SIZES EXCLUDE MOLD FLASH AND GATE BURRS
2. DIMENSION L IS MEASURED IN GAGE PLANE
3. TOLERANCE 0.10 mm UNLESS OTHERWISE SPECIFIED
4. CONTROLLING DIMENSION IS MILLIMETER. CONVERTED INCH DIMENSIONS ARE NOT NECESSARILY EXACT.
5. FOLLOWED FROM JEDEC MS-012
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