LM10
Operational Amplifier and Voltage Reference
General Description
The LM10 series are monolithic linear ICs consisting of a
precision reference, an adjustable reference buffer and an
independent, high quality op amp.
The unit can operate from a total supply voltage as low as
1.1V or as high as 40V, drawing only 270A. A complemen-
tary output stage swings within 15 mV of the supply termi-
nals or will deliver
20 mA output current with
0.4V satura-
tion. Reference output can be as low as 200 mV.
The circuit is recommended for portable equipment and is
completely specified for operation from a single power cell.
In contrast, high output-drive capability, both voltage and
current, along with thermal overload protection, suggest it in
demanding general-purpose applications.
The device is capable of operating in a floating mode, inde-
pendent of fixed supplies. It can function as a remote com-
parator, signal conditioner, SCR controller or transmitter for
analog signals, delivering the processed signal on the same
line used to supply power. It is also suited for operation in a
wide range of voltage- and current-regulator applications,
from low voltages to several hundred volts, providing greater
precision than existing ICs.
This series is available in the three standard temperature
ranges, with the commercial part having relaxed limits. In ad-
dition, a low-voltage specification (suffix "L") is available in
the limited temperature ranges at a cost savings.
Features
n
input offset voltage:
2.0 mV (max)
n
input offset current:
0.7 nA (max)
n
input bias current:
20 nA (max)
n
reference regulation:
0.1% (max)
n
offset voltage drift:
2V/C
n
reference drift:
0.002%/C
Connection and Functional Diagrams
Metal Can Package (H)
DS005652-1
Order Number LM10BH, LM10CH,
LM10CLH or LM10H/883
available per SMA# 5962-8760401
See NS Package Number H08A
Small Outline Package (WM)
DS005652-17
Order Number LM10CWM or LM10CWMX
See NS Package Number M14B
Dual-In-Line Package (N)
DS005652-15
Order Number LM10CN or LM10CLN
See NS Package Number N08E
DS005652-16
August 2000
LM10
Operational
Amplifier
and
V
oltage
Reference
2000 National Semiconductor Corporation
DS005652
www.national.com
Absolute Maximum Ratings
(Notes 1, 8)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
LM10/LM10B/ LM10BL/
LM10C
LM10CL
Total Supply Voltage
45V
7V
Differential Input Voltage (Note 2)
40V
7V
Power Dissipation (Note 3)
internally limited
Output Short-circuit Duration (Note 4)
continuous
Storage-Temp. Range
-55C to +150C
Lead Temp. (Soldering, 10 seconds)
Metal Can
300C
Lead Temp. (Soldering, 10 seconds) DIP
260C
Vapor Phase (60 seconds)
215C
Infrared (15 seconds)
220C
See AN-450 "Surface Mounting Methods and Their Effect on
Product Reliability" for other methods of soldering surface
mount devices.
ESD rating is to be determined.
Maximum Junction Temperature
LM10
150C
LM10B
100C
LM10C
85C
Operating Ratings
Package Thermal Resistance
JA
H Package
150C/W
N Package
87C/W
WM Package
90C/W
JC
H Package
45C/W
Electrical Characteristics
T
J
=25C, T
MIN
T
J
T
MAX
(Boldface type refers to limits over temperature range) (Note 5)
Parameter
Conditions
LM10/LM10B
LM10C
Units
Min
Typ
Max
Min
Typ
Max
Input offset voltage
0.3
2.0
0.5
4.0
mV
3.0
5.0
mV
Input offset current
0.25
0.7
0.4
2.0
nA
(Note 6)
1.5
3.0
nA
Input bias current
10
20
12
30
nA
30
40
nA
Input resistance
250
500
150
400
k
150
115
k
Large signal voltage
V
S
=
20V, I
OUT
=0
120
400
80
400
V/mV
gain
V
OUT
=
19.95V
80
50
V/mV
V
S
=
20V, V
OUT
=
19.4V
50
130
25
130
V/mV
I
OUT
=
20 mA (
15 mA)
20
15
V/mV
V
S
=
0.6V (0.65V), I
OUT
=
2 mA
1.5
3.0
1.0
3.0
V/mV
V
OUT
=
0.4V (
0.3V), V
CM
=-0.4V
0.5
0.75
V/mV
Shunt gain (Note 7)
1.2V (1.3V)
V
OUT
40V,
14
33
10
33
V/mV
R
L
=1.1 k
0.1 mA
I
OUT
5 mA
6
6
V/mV
1.5V
V
+
40V, R
L
=250
8
25
6
25
V/mV
0.1 mA
I
OUT
20 mA
4
4
V/mV
Common-mode
-20V
V
CM
19.15V (19V)
93
102
90
102
dB
rejection
V
S
=
20V
87
87
dB
Supply-voltage
-0.2V
V
-
-39V
90
96
87
96
dB
rejection
V
+
=1.0V (1.1V)
84
84
dB
1.0V (1.1V)
V
+
39.8V
96
106
93
106
dB
V
-
=-0.2V
90
90
dB
Offset voltage drift
2.0
5.0
V/C
Offset current drift
2.0
5.0
pA/C
Bias current drift
T
C
<
100C
60
90
pA/C
Line regulation
1.2V (1.3V)
V
S
40V
0.001
0.003
0.001
0.008
%/V
0
I
REF
1.0 mA, V
REF
=200 mV
0.006
0.01
%/V
LM10
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2
Electrical Characteristics
(Continued)
T
J
=25C, T
MIN
T
J
T
MAX
(Boldface type refers to limits over temperature range) (Note 5)
Parameter
Conditions
LM10BL
LM10CL
Units
Min
Typ
Max
Min
Typ
Max
Amplifier gain
0.2V
V
REF
5.5V
30
70
20
70
V/mV
20
15
V/mV
Feedback sense voltage
195
200
205
190
200
210
mV
194
206
189
211
mV
Feedback current
20
50
22
75
nA
65
90
nA
Reference drift
0.002
0.003
%/C
Supply current
260
400
280
500
A
500
570
A
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func-
tional, but do not guarantee specific performance limits.
Note 2: The Input voltage can exceed the supply voltages provided that the voltage from the input to any other terminal does not exceed the maximum differential
input voltage and excess dissipation is accounted for when V
IN
<
V
-
.
Note 3: The maximum, operating-junction temperature is 150C for the LM10, 100C for the LM10B(L) and 85C for the LM10C(L). At elevated temperatures, devices
must be derated based on package thermal resistance.
Note 4: Internal thermal limiting prevents excessive heating that could result in sudden failure, but the IC can be subjected to accelerated stress with a shorted output
and worst-case conditions.
Note 5: These specifications apply for V
-
V
CM
V
+
-0.85V (1.0V), 1.2V (1.3V)
<
V
S
V
MAX
, V
REF
=0.2V and 0
I
REF
1.0 mA, unless otherwise specified: V
MAX
=40V
for the standard part and 6.5V for the low voltage part. Normal typeface indicates 25C limits. Boldface type indicates limits and altered test conditions for
full-temperature-range operation; this is -55C to 125C for the LM10, -25C to 85C for the LM10B(L) and 0C to 70C for the LM10C(L). The specifications do
not include the effects of thermal gradients (
1
.
20 ms), die heating (
2
.
0.2s) or package heating. Gradient effects are small and tend to offset the electrical error
(see curves).
Note 6: For T
J
>
90C, I
OS
may exceed 1.5 nA for V
CM
=V
-
. With T
J
=125C and V
-
V
CM
V
-
+0.1V, I
OS
5 nA.
Note 7: This defines operation in floating applications such as the bootstrapped regulator or two-wire transmitter. Output is connected to the V
+
terminal of the IC
and input common mode is referred to V
-
(see typical applications). Effect of larger output-voltage swings with higher load resistance can be accounted for by adding
the positive-supply rejection error.
Note 8: Refer to RETS10X for LM10H military specifications.
Definition of Terms
Input offset voltage: That voltage which must be applied
between the input terminals to bias the unloaded output in
the linear region.
Input offset current: The difference in the currents at the in-
put terminals when the unloaded output is in the linear re-
gion.
Input bias current: The absolute value of the average of the
two input currents.
Input resistance: The ratio of the change in input voltage to
the change in input current on either input with the other
grounded.
Large signal voltage gain: The ratio of the specified output
voltage swing to the change in differential input voltage re-
quired to produce it.
Shunt gain: The ratio of the specified output voltage swing
to the change in differential input voltage required to produce
it with the output tied to the V
+
terminal of the IC. The load
and power source are connected between the V
+
and V
-
ter-
minals, and input common-mode is referred to the V
-
termi-
nal.
Common-mode rejection: The ratio of the input voltage
range to the change in offset voltage between the extremes.
Supply-voltage rejection: The ratio of the specified
supply-voltage change to the change in offset voltage be-
tween the extremes.
Line regulation: The average change in reference output
voltage over the specified supply voltage range.
Load regulation: The change in reference output voltage
from no load to that load specified.
Feedback sense voltage: The voltage, referred to V
-
, on
the reference feedback terminal while operating in regula-
tion.
Reference amplifier gain: The ratio of the specified refer-
ence output change to the change in feedback sense voltage
required to produce it.
Feedback current: The absolute value of the current at the
feedback terminal when operating in regulation.
Supply current: The current required from the power
source to operate the amplifier and reference with their out-
puts unloaded and operating in the linear range.
LM10
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