LM2902.PDF

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LOW POWER QUAD OPERATIONAL AMPLIFIERS
LM2902
LOW POWER QUAD OPERATIONAL AMPLIFIERS
. VERY LOW SUPPLY CURRENT/AMPLI :
375 m A
. LOW INPUT OFFSET CURRENT : 2nA
. WIDE POWER SUPPLY RANGE :
SINGLE SUPPLY : +3V TO +30V
DUAL SUPPLIES : ± 1.5V TO ± 15V
N
DIP14
(Plastic Package)
D
SO14
(Plastic Micropackage)
DESCRIPTION
This circuit consists of four independent, high gain,
internally frequency compensated operational am-
plifiers which were designed specifically for automo-
tive and industrial control systems. It operates from
a single power supply over a wide range of volt-
ages. 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.
ORDER CODES
Part
Number
Temperature
Range
Package
N
D
LM2902
-40 o C, +125 o C
•
•
Example : LM2902D
PIN CONNECTIONS (top view)
Output 1
1
14
Ou tp ut 4
Inverti ng Input 1
2
-
-
13
Inverting Input 4
Non-inverting Input 1
3
+
+
12
Non-inverting Input 4
V
CC
+
4
11
CC
-
Non-inverting Input 2
5
+
+
10
Non-inverting Input 3
Inverting Input 2
6
-
-
9
Inverting Input 3
Output 2
7
8
Output 3
November 1995
1/11
. LARGE VOLTAGE GAIN : 100dB
. LOW INPUT BIAS CURRENT : 20nA
V
11035315.002.png
LM2902
SCHEMATIC DIAGRAM (1/4 LM2902)
V CC
6 m A
4 m A
100
m
A
Q5
C C
Q6
Inverting
input
Q2
Q3
Q7
Q1
Q4
R SC
Non-inverting
input
Q11
Output
Q13
Q10
Q12
Q8
Q9
50 m A
GND
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V cc
Supply Voltage
±
16 or 32
V
V i
Input Voltage
-0.3 to +32
V
V id
Differential Input Voltage
+32
V
P tot
Power Dissipation
N Suffix
D Suffix
500
400
mW
mW
-
Output Short-circuit Duration - (note 1)
Infinite
I in
Input Current – (note 6)
50
mA
T oper
Operating Free Air Temperature Range
-40 to +125
o C
T stg
Storage Temperature Range
-65 to +150
o C
2/11
11035315.003.png
LM2902
ELECTRICAL CHARACTERISTICS
V CC + = +5V, V CC – = Ground, V O = 1.4V , T amb = +25 o C
(unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
V io
Input Offset Voltage (note 3)
T amb =+25 o C
T min.
mV
2
7
9
3
T amb
3
T max .
I io
Input Offset Current
T amb =+25 o C
T min.
nA
2
30
40
3
T amb
3
T max .
I ib
Input Bias Current (note 2)
T amb =+25 o C
T min.
nA
20
150
200
3
T amb
3
T max .
A vd
Large Signal Voltage Gain
(V CC + = +15V, R L =2k
V/mV
W
,V O = 1.4V to 11.4V)
T amb =+25 o C
T min.
50
25
100
3
T amb
3
T max .
SVR
(V CC + = 5V to 30V)
T amb =+25 o C
T min.
3
10k
W
)
dB
3
T amb
3
T max .
65
65
110
I CC
Supply Current, all Amp, no load
T amb =+25 o C
V CC = +5V
V CC = +30V
0.7
1.5
0.8
1.5
1.2
3
1.2
3
mA
T min.
3
T amb
3
T max .
V CC = +5V
V CC = +30V
V icm
Input Common Mode Voltage Range
(V CC = +30V) - (note 4)
T amb =+25 o C
T min.
V
3
T amb
3
T max.
0
0
V CC -1.5
V CC -2
CMR
Common-mode Rejection Ratio (R S
3
10k
W
)
dB
70
60
80
3
T amb
3
T max
I o
Output Short-circuit Current (V id = +1V)
V CC = +15V, V o = +2V
20
40
60
mA
I sink
Output Sink Current (V id = -1V)
V CC = +15V, V o =+2V
V CC = +15V, V o = +0.2V
10
12
20
50
mA
m
A
3/11
Supply Voltage Rejection Ratio (R S
T amb =+25 o C
T min.
11035315.004.png
LM2902
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Min.
Typ.
Max.
Unit
V OH
High Level Output Voltage
(V CC = +30V)
T amb = +25 o C
V
R L =2k
W
26
26
27
27
27
T min .
3
T amb
3
T max .
T amb = +25 o C
R L = 10k
W
28
T max .
(V CC = +5V, R L =2k
3
T amb
3
W)
T amb = +25 o C
T min .
3.5
3
3
T amb
3
T max .
V OL
Low Level Output Voltage (R L = 10k W )
T amb = +25 o C
T min .
mV
5
20
20
3
T amb
3
T max .
SR
,C L = 100pF, T amb = +25 o C,
unity gain)
V/
m
s
W
0.4
GBP
Gain Bandwidth Product (V CC = 30V
f = 100kHz, T amb = +25 o C, V in = 10mV
R L =2k
MHz
W
,C L = 100pF)
1.3
THD
Total Harmonic Distortion
(f = 1kHz, A V = 20dB, R L =2k
%
,V O =2V pp
C L = 100pF, T amb = +25 o C, V CC = 30V)
W
0.015
e n
Equivalent Input Noise Voltage
(f = 1kHz, R s = 100
nV
/```
,V CC = 30V)
40
Hz
DV io
Input Offset Voltage Drift
7
30
m
V/ o C
DI IO
Input Offset Current Drift
10
200
pA/ o C
V O 1/V O 2
Channel Separation (note 5)
1kHz
f
3
20kHz
120
dB
Notes : 1. Short-circuits from the output to V CC can cause excessive heating if V CC > 15V. The maximum output current
is approximately 40mA independent of the magnitude of V CC . Destructive di ssipation can result from simulta-
neous short-circuit on all amplifiers.
2. The direction of the input current is out of the IC. This current is essentially constant, independent of the state
of the output so no loading change exists on the input lines.
3. V o = 1.4V, R s =0
5V < V CC + < 30V, 0 < V ic <V CC + -1.5V
4. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more
than 0.3V. The upper end of the common-mode voltage range is V CC + - 1.5V, but either or both inputs can go
to +32V without damage.
5. Due to the proximity of external components insure that coupling is not originating via stray capacitance be-
tween these external parts. This typically can be detected as this type of capacitance increases at higher fre-
quences.
6. This input current only exists when the voltage at any of the input leads is driven negative. It is due to the
collector-base junction of the input PNP transistor becoming forward biased and thereby acting as input di-
odes clamps. In addition to this diode action, there is also NPN parasitic action on the IC chip. this transistor
action can cause the output voltages of the Op-amps to go to the V CC voltage level (or to ground for a large
overdrive) for the time duration than an input is driven negative.
This is not destructive and normal output will set up again for input voltage higher than -0.3V.
W,
4/11
T min .
Slew Rate (V CC = 15V, V I = 0.5 to 3V,
R L =2k
W
3
11035315.005.png
2902-07.EPS
2902-05.EPS
2902-03.EPS
2902-08.EPS
2902-06.EPS
2902-04.EPS
11035315.001.png

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