a
FEATURES
Low Supply Current: 600 A Max
Very Low Offset: 35 V Max
Low Drift: 1.5 V/ C Max
Very Low Bias Current
25 C: 100 pA Max
Low Noise: 0.5 V p-p Typ
High Common-Mode Rejection: 114 dB Min
Low Power Precision
Operational Amplifier
PM1012
PIN CONNECTIONS
Plastic Mini-DIP (P Suffix)
8-Lead SO (S Suffix)
NULL
1
–IN
2
+IN
3
V–
4
8
7
6
NULL
V+
PM1012
OUT
OVER
5
COMP
GENERAL DESCRIPTION
The PM1012 is a general purpose, precision operational ampli-
fier. Offering several performance enhancements over industry-
standard precision op amps such as the OP07, the PM1012
requires less than 1/6 the supply current. These enhancements
include exceptionally low bias currents of only
±
80 pA, typical,
over the full military temperature range, and 132 dB of com-
mon-mode rejection and power-supply rejection. The PM1012’s
low offset voltage of 35
µV
maximum frees the user from exter-
nal nulling in most circuits.
An open-loop gain of two million into a 10 kΩ load ensures that
excellent linearity is maintained even in high gain configura-
tions, and 5 mA of output current allows 2 kΩ loads to be
driven with an open-loop gain of one million. The PM1012
offers low noise, especially for a low power amplifier—only
17 nV/√Hz at 10 Hz. Exceptionally low current noise minimizes
noise contributions when high source impedances are used. The
PM1012 may be overcompensated, using Pin 5 to limit the
amplifier’s bandwidth, further reducing system noise and in-
creasing stability with large capacitive loads.
The PM1012 conforms to the OP07 pinout with nulling through
Pins 1 and 8 to the positive supply. It offers an upgrade to the
OP07 in sockets where reduced power dissipation or low bias
currents are attractive. It may also be used as an upgrade from
the OP12, OP05 and 725 type op amps. The PM1012 may
replace 741 type op amps by removing the nulling potentiom-
eter, if used.
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1998
PM1012–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
(@ V =
S
15 V, V
CM
= 0 V, T
A
= +25 C, unless otherwise noted)
Min
PM1012G
Typ
10
25
0.3
20
30
±
30
±
40
0.5
17
14
20
2000
1000
132
132
±
14.0
±
14
0.2
3
0.5
380
±
15
Max
50
120
Units
µV
µV
µV/Month
pA
pA
pA
pA
µV
p-p
nV/√Hz
nV/√Hz
fA/√Hz
V/mV
V/mV
dB
dB
V
V
V/µs
kHz
MHz
µA
V
Parameter
Input Offset Voltage
Long-Term
V
OS
Stability
Input Offset Current
Input Bias Current
Input Noise Voltage
Input Noise Voltage Density
Input Noise Current Density
Large-Signal Voltage Gain
Common-Mode Rejection
Power-Supply Rejection
Input Voltage Range
Output Voltage Swing
Slew Rate
Full-Power Bandwidth
Gain Bandwidth Product
Supply Current
Supply Voltage
Symbol
V
OS
∆V
OS
/Time
I
OS
I
B
e
n
p-p
e
n
I
n
A
VO
CMR
PSR
IVR
V
O
SR
BW
P
GBW
I
SY
V
S
Conditions
(Note 1)
(Note 1)
(Note 1)
0.1 Hz to 10 Hz
f
O
= 10 Hz
2
f
O
= 1000 Hz
3
f
O
= 10 Hz
V
O
=
±
12 V; R
L
= 10 kΩ
V
O
=
±
10 V; R
L
= 2 kΩ
V
CM
=
±
13.5 V
V
S
=
±2
V to
±
20 V
(Note 4)
R
L
= 10 kΩ
150
200
±
150
±
200
30
22
200
120
110
110
±
13.5
±
13
0.1
A
V
= +100
(Note 1)
Operating Range
±
2
600
±
20
NOTES
1
These specifications apply for
±2
V
≤
V
S
≤ ±
20 V and –13.5 V
≤
V
CM
≤
+13.5 V (for V
S
=
±
15 V).
2
10 Hz noise voltage density is sample tested. Devices 100% tested for noise are available on request.
3
Sample tested.
4
Guaranteed by CMR test.
Specifications subject to change without notice.
ELECTRICAL CHARACTERISTICS
(@ V =
S
15 V, V
CM
= 0 V, –40 C
≤
T
A
≤
+85 C for PM1012GP, GS, unless otherwise noted)
Min
PM1012G
Typ
20
30
Max
120
200
1.5
230
300
2.5
±
230
±
300
2.5
Units
µV
µV
µV/°C
pA
pA
pA/°C
pA
pA
pA/°C
V/mV
V/mV
dB
dB
V
V
V/µs
µA
V
Parameter
Input Offset Voltage
Average Temperature
Coefficient of V
OS
Input Offset Current
Average Temperature
Coefficient of I
OS
Input Bias Current
Average Temperature
Coefficient of I
B
Large Signal Voltage Gain
Common-Mode Rejection
Power Supply Rejection
Input Voltage Range
Output Voltage Swing
Slew Rate
Supply Current
Supply Voltage
Symbol
V
OS
TCV
OS
I
OS
TCI
OS
I
B
Conditions
(Note 1)
(Note 1)
0.2
20
40
0.3
±
35
±
50
0.3
1500
800
130
128
±
14.0
±
14
0.15
400
±
15
(Note 1)
TCI
B
A
VO
CMR
PSR
IVR
V
O
SR
I
SY
V
S
V
O
=
±
12 V; R
L
= 10 kΩ
V
O
=
±
10 V; R
L
= 2 kΩ
V
CM
=
±
13.5 V
V
S
=
±2.5
V to
±
20 V
(Note 2)
R
L
= 10 kΩ
(Note 1)
Operating Range
150
100
108
108
±
13.5
±
13
0.05
±
2.5
800
±
20
NOTES
1
These specifications apply for
±2.5
V
≤
V
S
≤ ±
20 V and –13.5 V
≤
V
CM
≤
+13.5 V (for V
S
=
±15
V).
2
Guaranteed by CMR test.
Specifications subject to change without notice.
–2–
REV. C
PM1012
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
20 V
Input Voltage
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
20 V
Differential Input Voltage
3
. . . . . . . . . . . . . . . . . . . . . .
±
1 V
Differential Input Current
3
. . . . . . . . . . . . . . . . . . . .
±
10 mA
Output Short-Circuit Duration . . . . . . . . . . . . . . . . Indefinite
Operating Temperature Range
PM1012G (P, S) . . . . . . . . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Junction Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 60 sec) . . . . . . . . . . . +300°C
Package Type
8-Lead Plastic DIP (P)
8-Lead SO (S)
4
JA
JC
ABSOLUTE MAXIMUM RATINGS
1
NOTES
1
Absolute maximum ratings apply to both DICE and packaged parts, unless
otherwise noted.
2
For supply voltages less than
±20
V, the absolute maximum input voltage is equal
to the supply voltage.
3
The PM1012’s inputs are protected by back-to-back diodes. Current-limiting
resistors are not used in order to achieve low noise. Differential input voltages
greater than 1 V will cause excessive current to flow through the input protection
diodes unless limiting resistance is used.
4
θ
JA
is specified for worst case mounting conditions, i.e.,
θ
JA
is specified for device
in socket for cerdip, and P-DIP packages;
θ
JA
is specified for device soldered to
printed circuit board for SO package.
ORDERING GUIDE
Units
°C/W
°C/W
Model
PM1012GP
PM1012GS
103
158
43
43
Temperature
Range
–40°C to +85°C
–40°C to +85°C
Package
Description
Plastic DIP
SOIC
Package
Options
N-8
SO-8
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the PM1012 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
REV. C
–3–
PM1012
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
8-Lead Plastic DIP
(N-8)
0.430 (10.92)
0.348 (8.84)
8
5
1
4
0.280 (7.11)
0.240 (6.10)
0.060 (1.52)
0.015 (0.38)
0.130
(3.30)
MIN
SEATING
PLANE
0.325 (8.25)
0.300 (7.62)
0.195 (4.95)
0.115 (2.93)
PIN 1
0.210 (5.33)
MAX
0.160 (4.06)
0.115 (2.93)
0.022 (0.558) 0.100 0.070 (1.77)
0.014 (0.356) (2.54) 0.045 (1.15)
BSC
0.015 (0.381)
0.008 (0.204)
8-Lead SOIC
(SO-8)
0.1968 (5.00)
0.1890 (4.80)
8
1
5
4
0.1574 (4.00)
0.1497 (3.80)
0.2440 (6.20)
0.2284 (5.80)
PIN 1
0.0098 (0.25)
0.0040 (0.10)
0.0688 (1.75)
0.0532 (1.35)
0.0196 (0.50)
x 45
0.0099 (0.25)
0.0500 0.0192 (0.49)
SEATING (1.27)
0.0098 (0.25)
PLANE BSC 0.0138 (0.35) 0.0075 (0.19)
8
0
0.0500 (1.27)
0.0160 (0.41)
–4–
REV. C
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