GM324
LOW POWER QUAD OPERATIONAL AMPLIFIERS
Revision 1, July 2002 1 www.gammamicro.com
PRELIMINARY
PIN CONNECTIONS
1
2
3
4
5
6
7
14
13
12
11
10
9
OUTPUT 1
GND
V
CC
8
+
+
-
-
1
4
+
-
3
+
-
2
OUTPUT 3
OUTPUT 4
OUTPUT 2
}
}
{
{
INPUTS 1
INPUTS 2
INPUTS 3
INPUTS 4
SOP-14, DIP-14 (TOP VIEW)
The GM324 series are lowcost, quad internally frequency compesated operational amplifiers with true differential
inputs, which operate from a single power supply over a wide range of voltages. They have several distinct advantages
over standard operational amplifier types in single supply applications. The quad amplifier can operate at supply
voltages as low as 3.0V or as high as 32V with extremely low quiescent current (on a per amplifier basis). The
common mode input range includes the negative supply, thereby eliminating the necessity for external biasing
components in many applications. The output voltage range also includes the negative power supply voltage.
Application areas include transducer amplifiers, DC gain blocks and all the conventional op-amp circuits which
now can be more easily implemented in single power supply systems. For example, the GM324 series can be
directly operated off of the standard +5V power supply voltage which is used in digital systems and will easily
provide the required interface electronics without requiring the additional 15V power supplies.
The GM324 is available in DIP-14 and SOP-14 packages.
Internally frequency compensated for unity gain
Large DC voltage gain 100 dB
Wide bandwidth (unity gain) 1 MHz (temperature compensated)
Power Supply Range: Single supply 3V to 32V
Very low supply current drain (700 A)--essentially independent of supply voltage
Low input biasing current 45 nA (temperature compensated)
Low input offset voltage 2 mV and offset current: 5 nA
Input common-mode voltage range includes ground
Differential input voltage range equal to the powersupply voltage
Large output voltage swing 0V to V+ - 1.5V
GM324
LOW POWER QUAD OPERATIONAL AMPLIFIERS
Revision 1, July 2002 2 www.gammamicro.com
PRELIMINARY
R
E
T
E
M
A
R
A
P
E
U
L
A
V
S
T
I
N
U
e
g
a
tl
o
V
y
l
p
p
u
S
2
3
V
e
g
a
tl
o
V
t
u
p
n
I
l
a
it
n
e
r
e
ff
i
D
2
3
V
t
n
e
r
r
u
C
t
u
p
n
I
0
5
A
m
e
g
a
tl
o
V
t
u
p
n
I
2
3
+
o
t
3
.
0
-
V
n
o
it
a
p
i
s
s
i
D
r
e
w
o
P
0
0
8
W
m
e
g
n
a
R
e
r
u
t
a
r
e
p
m
e
T
g
n
it
a
r
e
p
O
0
7
+
o
t
0
C
e
g
n
a
R
e
r
u
t
a
r
e
p
m
e
T
e
g
a
r
o
t
S
0
5
1
+
o
t
5
6
-
C
)
.
c
e
s
0
1
g
n
ir
e
d
l
o
s
(
e
r
u
t
a
r
e
p
m
e
T
d
a
e
L
0
6
2
C
ABSOLUTE MAXIMUM RATINGS
BLOCK DIAGRAM (each amplifier)
OUTPUT
V
CC
4
A
100
A
6
A
50
A
C
C
Q8
Q3
Q2
Q1
Q4
Q7
Q6
Q5
Q11
Q12
Q13
Q10
Q9
-
+
INPUTS
GM324
LOW POWER QUAD OPERATIONAL AMPLIFIERS
Revision 1, July 2002 3 www.gammamicro.com
PRELIMINARY
S
C
I
T
S
I
R
E
T
C
A
R
A
H
C
L
O
B
M
Y
S
S
N
O
I
T
I
D
N
O
C
T
S
E
T
N
I
M
P
Y
T
X
A
M
T
I
N
U
e
g
a
tl
o
V
t
e
s
ff
O
t
u
p
n
I
V
O
I
V
C
C
X
A
M
o
t
V
5
=
C
5
2
3
7
V
m
e
g
n
a
r
ll
u
F
9
t
n
e
i
c
if
f
e
o
c
e
r
u
t
a
r
e
p
m
e
T
e
g
a
r
e
v
A
e
g
a
tl
o
V
t
e
s
ff
O
t
u
p
n
I
f
o
V
O
I
e
g
n
a
r
ll
u
F
7
C
/
V
t
n
e
r
r
u
C
t
e
s
ff
O
t
u
p
n
I
I
O
I
V
O
V
4
.
1
=
C
5
2
2
0
5
A
n
e
g
n
a
r
ll
u
F
0
5
1
t
n
e
i
c
if
f
e
o
c
e
r
u
t
a
r
e
p
m
e
T
e
g
a
r
e
v
A
t
n
e
r
r
u
C
t
e
s
ff
O
t
u
p
n
I
f
o
I
O
I
e
g
n
a
r
ll
u
F
0
1
C
/
A
p
t
n
e
r
r
u
C
s
a
i
B
t
u
p
n
I
I
S
A
I
B
V
O
V
4
.
1
=
C
5
2
0
2
-
0
5
2
-
A
n
e
g
n
a
r
ll
u
F
0
0
5
-
e
g
a
tl
o
V
t
u
p
n
I
e
d
o
M
-
n
o
m
m
o
C
e
g
n
a
R
V
R
C
I
V
C
C
X
A
M
o
t
V
5
=
C
5
2
V
o
t
0
C
C
5
.
1
-
V
e
g
n
a
r
ll
u
F
V
o
t
0
C
C
2
-
e
g
a
tl
o
V
t
u
p
t
u
O
l
e
v
e
L
-
h
g
i
H
V
H
O
R
L
k
2
C
5
2
V
C
C
5
.
1
-
V
V
C
C
R
,
X
A
M
=
L
k
2
=
e
g
n
a
r
ll
u
F
6
2
V
C
C
R
,
X
A
M
=
L
k
0
1
e
g
n
a
r
ll
u
F
7
2
8
2
e
g
a
tl
o
V
t
u
p
t
u
O
l
e
v
e
L
-
w
o
L
V
L
O
R
L
k
0
1
e
g
n
a
r
ll
u
F
5
0
2
V
m
e
g
a
tl
o
V
l
a
it
n
e
r
e
ff
i
D
l
a
n
g
i
S
-
e
g
r
a
L
n
o
it
a
c
if
il
p
m
A
A
D
V
V
C
C
V
,
V
5
1
=
O
,
V
1
1
o
t
V
1
=
R
L
k
2
C
5
2
5
2
0
0
1
V
m
/
V
e
g
n
a
r
ll
u
F
5
1
o
it
a
R
n
o
it
c
e
j
e
R
e
d
o
M
n
o
m
m
o
C
R
R
M
C
V
C
C
,
X
A
M
o
t
V
5
=
V
C
I
V
=
R
C
I
n
i
m
C
5
2
5
6
0
8
B
d
o
it
a
R
n
o
it
c
e
j
e
R
e
g
a
tl
o
V
y
l
p
p
u
S
k
R
V
S
V
C
C
X
A
M
o
t
V
5
=
C
5
2
5
6
0
0
1
B
d
n
o
it
a
u
n
e
tt
A
k
l
a
t
s
s
o
r
C
V
O
1
/
V
O
2
z
H
k
0
2
o
t
z
H
k
1
=
f
C
5
2
0
2
1
B
d
t
n
e
r
r
u
C
t
u
p
t
u
O
I
O
V
C
C
V
,
V
5
1
=
O
V
,
0
=
D
I
V
1
=
C
5
2
0
2
-
0
3
-
A
m
e
g
n
a
r
ll
u
F
0
1
-
V
C
C
V
,
V
5
1
=
O
V
,
V
5
1
=
D
I
V
1
-
=
C
5
2
0
1
0
2
e
g
n
a
r
ll
u
F
5
V
O
V
,
V
m
0
0
2
=
D
I
V
1
-
=
C
5
2
2
1
0
3
A
t
n
e
r
r
u
C
t
u
p
t
u
O
ti
u
c
r
i
C
-
t
r
o
h
S
I
S
O
V
C
C
V
,
V
5
t
a
O
V
5
-
t
a
D
N
G
,
0
=
C
5
2
0
4
0
6
A
m
)
s
r
e
if
il
p
m
a
r
u
o
f
(
t
n
e
r
r
u
C
y
l
p
p
u
S
I
C
C
V
O
d
a
o
l
o
n
,
V
5
.
2
=
e
g
n
a
r
ll
u
F
7
.
0
2
.
1
A
m
V
C
C
,
X
A
M
=
V
O
V
5
.
0
=
C
C
d
a
o
l
o
n
,
e
g
n
a
r
ll
u
F
1
.
1
3
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.
"MAX" V
CC
for testing purposes is 30V. Full range is 0C to 70C.
GM324
LOW POWER QUAD OPERATIONAL AMPLIFIERS
Revision 1, July 2002 4 www.gammamicro.com
PRELIMINARY
4
2
3
M
G
E
G
A
K
C
A
P
4
1
-
P
O
S
4
1
-
P
I
D
4
1
S
4
2
3
M
G
4
1
D
4
2
3
M
G
ORDERING INFORMATION
GM324
LOW POWER QUAD OPERATIONAL AMPLIFIERS
Revision 1, July 2002 5 www.gammamicro.com
PRELIMINARY
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
L
O
B
M
Y
S
s
r
e
t
e
m
il
li
M
n
I
s
n
o
i
s
n
e
m
i
D
s
e
h
c
n
I
n
I
s
n
o
i
s
n
e
m
i
D
N
I
M
M
O
N
X
A
M
N
I
M
M
O
N
X
A
M
A
5
3
.
1
0
6
.
1
5
7
.
1
3
5
0
.
0
3
6
0
.
0
9
6
0
.
0
1
A
0
1
.
0
5
2
.
0
4
0
0
.
0
0
1
0
.
0
2
A
5
4
.
1
7
5
0
.
0
B
3
3
.
0
1
5
.
0
3
1
0
.
0
0
2
0
.
0
C
9
1
.
0
5
2
.
0
7
0
0
.
0
0
1
0
.
0
D
5
5
.
8
5
7
.
8
7
3
3
.
0
4
4
3
.
0
E
0
8
.
3
0
0
.
4
0
5
1
.
0
7
5
1
.
0
e
7
2
.
1
0
5
0
.
0
H
0
8
.
5
0
2
.
6
8
2
2
.
0
4
4
2
.
0
L
0
4
.
0
7
2
.
1
6
1
0
.
0
0
5
0
.
0
y
0
1
.
0
4
0
0
.
0
0
8
0
8
PDF 
ZIP