LM613
Dual Operational Amplifiers, Dual Comparators, and
Adjustable Reference
General Description
The LM613 consists of dual op-amps, dual comparators, and
a programmable voltage reference in a 16-pin package. The
op-amps out-performs most single-supply op-amps by pro-
viding higher speed and bandwidth along with low supply
current. This device was specifically designed to lower cost
and board space requirements in transducer, test, measure-
ment, and data acquisition systems.
Combining a stable voltage reference with wide output swing
op-amps makes the LM613 ideal for single supply transduc-
ers, signal conditioning and bridge driving where large
common-mode-signals are common. The voltage reference
consists of a reliable band-gap design that maintains low dy-
namic output impedance (1
typical), excellent initial toler-
ance (0.6%), and the ability to be programmed from 1.2V to
6.3V via two external resistors. The voltage reference is very
stable even when driving large capacitive loads, as are com-
monly encountered in CMOS data acquisition systems.
As a member of National's Super-Block
TM
family, the LM613
is a space-saving monolithic alternative to a multi-chip solu-
tion, offering a high level of integration without sacrificing
performance.
Features
OP AMP
n
Low operating current (Op Amp): 300 A
n
Wide supply voltage range: 4V to 36V
n
Wide common-mode range: V
-
to (V
+
- 1.8V)
n
Wide differential input voltage:
36V
n
Available in plastic package rated for Military Temp.
Range Operation
REFERENCE
n
Adjustable output voltage: 1.2V to 6.3V
n
Tight initial tolerance available:
0.6%
n
Wide operating current range: 17 A to 20 mA
n
Tolerant of load capacitance
Applications
n
Transducer bridge driver
n
Process and mass flow control systems
n
Power supply voltage monitor
n
Buffered voltage references for A/D's
Super-Block
TM
is a trademark of National Semiconductor Corporation.
DS009226-1
Top View
E Package Pinout
DS009226-48
Ultra Low Noise, 10.00V Reference.
Total output noise is typically 14 V
RMS
.
DS009226-43
*10k must be low
t.c. trimpot
August 2000
LM613
Dual
Operational
Amplifiers,
Dual
Comparators,
and
Adjustable
Reference
2000 National Semiconductor Corporation
DS009226
www.national.com
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Voltage on Any Pin Except V
R
(referred to V
-
pin)
(Note 2)
(Note 3)
36V (Max)
-0.3V (Min)
Current through Any Input Pin
& V
R
Pin
20 mA
Differential Input Voltage
Military and Industrial
Commercial
36V
32V
Storage Temperature Range
-65C
T
J
+150C
Maximum Junction Temp.(Note 4)
150C
Thermal Resistance,
Junction-to-Ambient (Note 5)
N Package
WM Package
100C/W
150C/W
Soldering Information (10 Sec.)
N Package
WM Package
260C
220C
ESD Tolerance (Note 6)
1 kV
Operating Temperature Range
LM613AI, LM613BI:
-40C to +85C
LM613AM, LM613M:
-55C to +125C
LM613C:
0C
T
J
+70C
Electrical Characteristics
These specifications apply for V
-
= GND = 0V, V
+
= 5V, V
CM
= V
OUT
= 2.5V, I
R
= 100 A, FEEDBACK pin shorted to GND,
unless otherwise specified. Limits in standard typeface are for T
J
= 25C; limits in boldface type apply over the Operating
Temperature Range.
LM613AM
LM613M
Typical
LM613AI
LM613I
Symbol
Parameter
Conditions
(Note 7)
Limits
LM613C
Units
(Note 8)
Limits
(Note 8)
I
S
Total Supply Current
R
LOAD
=
,
450
940
1000
A (Max)
4V
V
+
36V (32V for LM613C)
550
1000
1070
A (Max)
V
S
Supply Voltage Range
2.2
2.8
2.8
V (Min)
2.9
3
3
V (Min)
46
36
32
V (Max)
43
36
32
V (Max)
OPERATIONAL AMPLIFIERS
V
OS1
V
OS
Over Supply
4V
V
+
36V
1.5
3.5
5.0
mV (Max)
(4V
V
+
32V for LM613C)
2.0
6.0
7.0
mV (Max)
V
OS2
V
OS
Over V
CM
V
CM
= 0V through V
CM
=
1.0
3.5
5.0
mV (Max)
(V
+
- 1.8V), V
+
= 30V, V
-
= 0V
1.5
6.0
7.0
mV (Max)
Average V
OS
Drift
(Note 8)
15
V/C
(Max)
I
B
Input Bias Current
10
25
35
nA (Max)
11
30
40
nA (Max)
I
OS
Input Offset Current
0.2
4
4
nA (Max)
0.3
5
5
nA (Max)
Average Offset Current
4
pA/C
R
IN
Input Resistance
Differential
1000
M
C
IN
Input Capacitance
Common-Mode
6
pF
e
n
Voltage Noise
f = 100 Hz, Input Referred
74
I
n
Current Noise
f = 100 Hz, Input Referred
58
CMRR
Common-Mode
V
+
= 30V, 0V
V
CM
(V
+
- 1.8V)
95
80
75
dB (Min)
Rejection Ratio
CMRR = 20 log (
V
CM
/
V
OS
)
90
75
70
dB (Min)
PSRR
Power Supply
4V
V
+
30V, V
CM
= V
+
/2,
110
80
75
dB (Min)
Rejection Ratio
PSRR = 20 log (
V
+
/V
OS
)
100
75
70
dB (Min)
LM613
www.national.com
2
Electrical Characteristics
(Continued)
These specifications apply for V
-
= GND = 0V, V
+
= 5V, V
CM
= V
OUT
= 2.5V, I
R
= 100 A, FEEDBACK pin shorted to GND,
unless otherwise specified. Limits in standard typeface are for T
J
= 25C; limits in boldface type apply over the Operating
Temperature Range.
LM613AM
LM613M
Typical
LM613AI
LM613I
Symbol
Parameter
Conditions
(Note 7)
Limits
LM613C
Units
(Note 8)
Limits
(Note 8)
OPERATIONAL AMPLIFIERS
A
V
Open Loop
R
L
= 10 k
to GND, V
+
= 30V,
500
100
94
V/mV
Voltage Gain
5V
V
OUT
25V
50
40
40
(Min)
SR
Slew Rate
V
+
= 30V (Note 9)
0.70
0.55
0.50
V/s
0.65
0.45
0.45
GBW
Gain Bandwidth
C
L
= 50 pF
0.8
MHz
0.5
MHz
V
O1
Output Voltage
R
L
= 10 k
to GND,
V
+
- 1.4
V
+
- 1.7
V
+
- 1.8
V (Min)
Swing High
V
+
= 36V (32V for LM613C)
V
+
- 1.6
V
+
- 1.9
V
+
- 1.9
V (Min)
V
O2
Output Voltage
R
L
= 10 k
to V
+
,
V
-
+ 0.8
V
-
+ 0.9
V
-
+ 0.95
V (Max)
Swing Low
V
+
= 36V (32V for LM613C)
V
-
+ 0.9
V
-
+ 1.0
V
-
+ 1.0
V (Max)
I
OUT
Output Source Current
V
OUT
= 2.5V, V
+
IN
= 0V,
25
20
16
mA (Min)
V
-
IN
= -0.3V
15
13
13
mA (Min)
I
SINK
Output Sink Current
V
OUT
= 1.6V, V
+
IN
= 0V,
17
14
13
mA (Min)
V
-
IN
= 0.3V
9
8
8
mA (Min)
I
SHORT
Short Circuit Current
V
OUT
= 0V,V
+
IN
= 3V,
30
50
50
mA (Max)
V
-
IN
= 2V
40
60
60
mA (Max)
V
OUT
= 5V, V
+
IN
= 2V,
30
60
70
mA (Max)
V
-
IN
= 3V
32
80
90
mA (Max)
COMPARATORS
V
OS
Offset Voltage
4V
V
+
36V (32V for LM613C),
1.0
3.0
5.0
mV (Max)
R
L
= 15 k
2.0
6.0
7.0
mV (Max)
Offset Voltage
0V
V
CM
36V
1.0
3.0
5.0
mV (Max)
over V
CM
V
+
= 36V, (32V for LM613C)
1.5
6.0
7.0
mV (Max)
Average Offset
15
V/C
Voltage Drift
(Max)
I
B
Input Bias Current
5
25
35
nA (Max)
8
30
40
nA (Max)
I
OS
Input Offset Current
0.2
4
4
nA (Max)
0.3
5
5
nA (Max)
A
V
Voltage Gain
R
L
= 10 k
to 36V (32V for
LM613C)
500
V/mV
2V
V
OUT
27V
100
V/mV
t
r
Large Signal
V
+
IN
= 1.4V, V
-
IN
= TTL Swing,
1.5
s
Response Time
R
L
= 5.1 k
2.0
s
I
SINK
Output Sink Current
V
+
IN
= 0V, V
-
IN
= 1V,
20
10
10
mA (Min)
V
OUT
= 1.5V
13
8
8
mA (Min)
V
OUT
= 0.4V
2.8
1.0
0.8
mA (Min)
2.4
0.5
0.5
mA (Min)
I
LEAK
Output Leakage
V
+
IN
= 1V, V
-
IN
= 0V,
0.1
10
10
A (Max)
Current
V
OUT
= 36V (32V for LM613C)
0.2
A (Max)
VOLTAGE REFERENCE
V
R
Voltage Reference
(Note 10)
1.244
1.2365
1.2191
V (Min)
LM613
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3
Electrical Characteristics
(Continued)
These specifications apply for V
-
= GND = 0V, V
+
= 5V, V
CM
= V
OUT
= 2.5V, I
R
= 100 A, FEEDBACK pin shorted to GND,
unless otherwise specified. Limits in standard typeface are for T
J
= 25C; limits in boldface type apply over the Operating
Temperature Range.
LM613AM
LM613M
Typical
LM613AI
LM613I
Symbol
Parameter
Conditions
(Note 7)
Limits
LM613C
Units
(Note 8)
Limits
(Note 8)
VOLTAGE REFERENCE
1.2515
1.2689
V (Max)
(
0.6%)
(
2%)
Average Temp. Drift
(Note 11)
10
80
150
ppm/C
(Max)
Hysteresis
(Note 12)
3.2
V/C
V
R
Change
V
R(100 A)
- V
R(17 A)
0.05
1
1
mV (Max)
with Current
0.1
1.1
1.1
mV (Max)
V
R(10 mA)
- V
R(100 A)
1.5
5
5
mV (Max)
(Note 13)
2.0
5.5
5.5
mV (Max)
R
Resistance
V
R(10
0.1 mA)
/9.9 mA
0.2
0.56
0.56
(Max)
V
R(100
17 A)
/83 A
0.6
13
13
(Max)
V
R
Change
V
R(Vro = Vr)
- V
R(Vro = 6.3V)
2.5
7
7
mV (Max)
with High V
RO
(5.06V between Anode and
2.8
10
10
mV (Max)
FEEDBACK)
V
R
Change with
V
R(V+ = 5V)
- V
R(V+ = 36V)
0.1
1.2
1.2
mV (Max)
V
ANODE
Change
(V
+
= 32V for LM613C)
0.1
1.3
1.3
mV (Max)
V
R(V+ = 5V)
- V
R(V+ = 3V)
0.01
1
1
mV (Max)
0.01
1.5
1.5
mV (Max)
I
FB
FEEDBACK Bias
V
ANODE
V
FB
5.06V
22
35
50
nA (Max)
Current
29
40
55
nA (Max)
e
n
V
R
Noise
10 Hz to 10 kHz,
30
V
RMS
V
RO
= V
R
Note 1: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the de-
vice beyond its rated operating conditions.
Note 2: Input voltage above V
+
is allowed. As long as one input pin voltage remains inside the common-mode range, the comparator will deliver the correct output.
Note 3: More accurately, it is excessive current flow, with resulting excess heating, that limits the voltages on all pins. When any pin is pulled a diode drop below
V
-
, a parasitic NPN transistor turns ON. No latch-up will occur as long as the current through that pin remains below the Maximum Rating. Operation is undefined
and unpredictable when any parasitic diode or transistor is conducting.
Note 4: Simultaneous short-circuit of multiple comparators while using high supply voltages may force junction temperature above maximum, and thus should not
be continuous.
Note 5: Junction temperature may be calculated using T
J
= T
A
+ P
D
JA
. The given thermal resistance is worst-case for packages in sockets in still air. For packages
soldered to copper-clad board with dissipation from one comparator or reference output transistor, nominal
JA
is 90C/W for the N package, and 135C/W for the
WM package.
Note 6: Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 7: Typical values in standard typeface are for T
J
= 25C; values in bold face type apply for the full operating temperature range. These values represent the
most likely parametric norm.
Note 8: All limits are guaranteed at room temperature (standard type face) or at operating temperature extremes (bold type face).
Note 9: Slew rate is measured with the op amp in a voltage follower configuration. For rising slew rate, the input voltage is driven from 5V to 25V, and the output
voltage transition is sampled at 10V and
@
20V. For falling slew rate, the input voltage is driven from 25V to 5V, and the output voltage transition is sampled at 20V
and 10V.
Note 10: V
R
is the Cathode-to-feedback voltage, nominally 1.244V.
Note 11: Average reference drift is calculated from the measurement of the reference voltage at 25C and at the temperature extremes. The drift, in ppm/C, is
10
6
V
R
/(V
R[25C]
T
J
), where
V
R
is the lowest value subtracted from the highest, V
R[25C]
is the value at 25C, and
T
J
is the temperature range. This parameter
is guaranteed by design and sample testing.
Note 12: Hysteresis is the change in V
R
caused by a change in T
J
, after the reference has been "dehysterized". To dehysterize the reference; that is minimize the
hysteresis to the typical value, its junction temperature should be cycled in the following pattern, spiraling in toward 25C: 25C, 85C, -40C, 70C, 0C, 25C.
Note 13: Low contact resistance is required for accurate measurement.
LM613
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4
Simplified Schematic Diagrams
Op Amp
DS009226-2
Comparator
DS009226-3
Reference/Bias
DS009226-4
LM613
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5
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