LM2903.pdf

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323063826 UNPDF
www.fairchildsemi.com
LM2903/LM2903I,LM393/LM393A,
LM293/LM293A
Dual Differential Comparator
18V
• Allow Comparison of Voltages Near Ground Potential
• Low Current Drain 800
1V to
Description
The LM2903/LM2903I, LM393/LM393A, LM293/
LM293A consist of two independent voltage comparators
designed to operate from a single power supply over a wide
voltage range.
A Typ.
• Compatible with all Forms of Logic
• Low Input Bias Current 25nA Typ.
• Low Input Offset Current
5nA Typ.
8-DIP
• Low Offset Voltage
1mV Typ.
1
8-SOP
1
Internal Block Diagram
Rev. 1.0.3
©2001 Fairchild Semiconductor Corporation
Features
• Single Supply Operation: 2V to 36V
• Dual Supply Operation:
323063826.003.png 323063826.004.png
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Schematic Diagram
Absolute Maximum Ratings
Parameter
Symbol
Value
Unit
Power Supply Voltage
V CC
18 or 36
V
Differential Input Voltage
V I(DIFF)
36
V
Input Voltage
V I
- 0.3 to +36
V
Output Short Circuit to GND
-
Continuous
-
Power Dissipation, Ta = 25
C
8-DIP
8-SOP
P D
1040
480
mW
Operating Temperature
LM393/LM393A
LM2903
LM2903I
LM293/LM293A
T OPR
0 ~ +70
- 40 ~ +85
-40 ~ +105
-25 ~ +85
C
Storage Temperature
T STG
- 65 ~ +150
C
Thermal Data
Parameter
Symbol
Value
Unit
Thermal Resistance Junction-Ambient Max.
8-DIP
8-SOP
R
ja
120
260
C/W
2
323063826.005.png
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Electrical Characteristics
(V CC = 5V, T A = 25
C, unless otherwise specified)
Parameter
Symbol
Conditions
LM293A/LM393A
LM293/LM393
Unit
Min. Typ. Max. Min. Typ. Max.
Input Offset
Voltage
VIO
V O(P) =1.4V, R S = 0
-
1
2
-
1
5
mV
V CM = 0 to1.5V Note 1
-
-
4.0
-
-
9.0
Input Offset
Current
I IO
-
5
50
-
5
50
nA
Note 1
-
-
150
-
-
150
Input Bias
Current
I BIAS
-
65
250
-
65
250
nA
Note 1
-
-
400
-
-
400
Input Common
Mode
Voltage Range
VI(R)
0
-
V CC
-1.5
0
-
V CC
-1.5
V
Note 1
0
-
V CC -2
0
-
V CC -2
Supply Current I CC
R L =
∞
V CC = 5V
-
0.6
1
-
0.6
1
mA
R L =
, V CC = 30V
-
0.8
2.5
-
0.8
2.5
Voltage Gain
G V
(for large V O(P-P)swing )
15K
50
200
-
50
200
-
V/mV
Large Signal
Response
Time
T LRES
V I =TTL Logic Swing
V REF =1.4V, V RL = 5V,
R L = 5.1K
-
350
-
-
350
-
nS
Response
Time
T RES V RL =5V, R L =5.1K
-
1.4
-
-
1.4
-
S
Output Sink
Current
I SINK
V O(P)
1V, V I(+) =0V,
6
18
-
6
18
-
A
Output
Saturation
Voltage
V I(-)
1V, VI(+) = 0V
-
160
400
-
160
400
VSAT
I SINK = 4mA
Note 1
-
-
700
-
-
700
mV
Output
Leakage
Current
V I(-) = 0V,
V I(+) = 1V
V O(P) = 5V
-
0.1
-
-
0.1
-
nA
I O(LKG)
V O(P) = 30V
-
-
1.0
-
-
1.0
A
NOTE 1
LM393/LM393A: 0
T A
+70
C
LM2903: -40
T A
+85
C
LM2903I: -40
T A
+105
C
LM293/LM293A : -25
T A
+85
C
3
VCC =15V, RL
V I(-)
1.5V
323063826.006.png
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Electrical Characteristics (Continued)
(V CC = 5V, T A = 25
C, unless otherwise specified)
Parameter
Symbol
Conditions
LM2903/LM2903I
Unit
Min. Typ. Max.
Input Offset Voltage
VIO
V O(P) =1.4V, R S = 0
-
1
7
mV
V CM = 0 to 1.5V
Note 1
-
9
15
Input Offset Current
I IO
-
5
50
nA
Note 1
-
50
200
Input Bias Current
I BIAS
-
65
250
nA
Note 1
-
-
500
Input Common Mode
Voltage Range
VI(R)
0
-
V CC
-1.5
V
Note 1
0
-
V CC -2
Supply Current
I CC
R L =
, V CC = 5V
-
0.6
1
mA
R L =
, V CC = 30V
-
1
2.5
Voltage Gain
G V
Ω
(for large V O(P-P)swing )
15K
25
100
-
V/mV
Large Signal Response Time T LRES
V I =TTL Logic Swing
V REF =1.4V, V RL = 5V, R L = 5.1K
-
350
-
nS
Response Time
T RES V RL = 5V, R L = 5.1K
-
1.5
-
S
Output Sink Current
I SINK V I(-)
1V, V I(+) = 0V, V O(P)
1.5V
6
16
-
mA
Output Saturation Voltage
V SAT
V I(-)
1V, VI(+) = 0V
-
160
400
mV
I SINK = 4mA
Note 1
-
-
700
Output Leakage Current
I O(LKG)
VI(-) = 0V,
VO(P) = 5V
-
0.1
-
nA
VI(+) = 1V
VO(P) = 30V
-
-
1.0
A
Note 1
LM393/LM393A: 0
T A
+70
C
LM2903: -40
T A
+85
C
LM2903I: -40
T A
+105
C
LM293/LM293A : -25
T A
+85
C
4
VCC =15V, RL
323063826.001.png
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Typical Performance Characteristics
Figure 1. Supply Current vs Supply Voltage
Figure 2. Input Current vs Supply Voltage
Figure 3. Output Saturation Voltage vs Sink Current
Figure 4. Response Time for Various Input
Overdrive-Negative Transition
Figure 5. Response Time for Various Input
Overdrive-Positive Transition
5
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