Fairchild LM2903, LM2903I, LM393, LM393A, LM293 service manual
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LM2903/LM2903I,LM393/LM393A,
LM293/LM293A
Dual Differential Comparator
www.fairchildsemi.com
Features
• Single Supply Operation: 2V to 36V
• Dual Supply Operation: ± 1V to ±18V
• Allow Comparison of Voltages Near Ground Potential
• Low Current Drain 800µA Typ .
• Compatible with all Forms of Logic
• Low Input Bi as Current 25nA Typ.
• Low Input Offset Current ±5nA Typ.
• Low Offset Voltage ±1mV Typ.
Internal Block Diagram
Description
The LM2903/LM2903I, LM393/LM393A, LM293/
LM293A consist of two independent voltage comparat ors
designed to operate from a single power supply over a wide
voltage range.
8-DIP
1
8-SOP
1
©2001 Fairchild Semiconductor Corporation
Rev. 1.0.3
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Schematic Diagram
Absolute Maximum Ratings
Parameter Symbol Value Unit
Power Supply Voltage V
Differential Input Voltage V
Input Voltage V
Output Short Circuit to GND - Continuous Power Dissipation, Ta = 25°C
8-DIP
8-SOP
Operating Temperature
LM393/LM393A
LM2903
LM2903I
LM293/LM293A
Storage Temperature T
CC
I(DIFF)
I
P
D
T
OPR
STG
±18 or 36 V
36 V
- 0.3 to +36 V
1040
480
0 ~ +70
- 40 ~ +85
-40 ~ +105
-25 ~ +85
- 65 ~ +150 °C
mW
°C
Thermal Data
Parameter Symbol Value Unit
Thermal Resistance Junction-Ambient Max.
8-DIP
8-SOP
Rθja 120
260
°C/W
2
Electrical Characteristics
(VCC = 5V, TA = 25°C, unless otherwise specified)
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Parameter Symbol Conditions
V
=1.4V, RS = 0Ω - ±1 ±2-±1 ±5
Input Offset
Voltage
Input Offset
Current
Input Bias
Current
V
I
IO
I
BIAS
IO
O(P)
= 0 to1.5V Note 1 - - ±4.0 - - ±9.0
V
CM
Note 1 - - ±150 - - ±150
Note 1 - - 400 - - 400
Input Common
Mode
Voltage Range
Supply Current I
Voltage Gain G
Large Signal
Response
Time
Response
Time
Output Sink
Current
Output
Saturation
Voltage
Output
Leakage
Current
V
I(R)
CC
V
T
LRES
T
RESVRL
I
SINK
V
SAT
I
O(LKG)
Note 1 0 - V
RL = ∞ , VCC = 5V - 0.6 1 - 0.6 1
= ∞, VCC = 30V - 0.8 2.5 - 0.8 2.5
R
L
VCC =15V, R
(for large V
≥ 15KΩ
L
O(P-P)swing
VI =TTL Logic Swing
V
=1.4V, VRL = 5V,
REF
R
= 5.1KΩ
L
=5V, RL =5.1KΩ -1.4- - 1.4 - µS
V
≥ 1V, V
I(-)
V
≤1.5V
O(P)
V
≥ 1V, VI(+) = 0V - 160 400 - 160 400
I(-)
= 4mA Note 1 - - 700 - - 700
I
SINK
V
= 0V,
I(-)
V
= 1V
I(+)
I(+)
=0V,
V
O(P)
V
O(P)
LM293A/LM393A LM293/LM393
Min. Typ. Max. Min. Typ. Max.
Unit
- ±5 ±50 - ±5 ±50
- 65 250 - 65 250
V
0-
)
50 200 - 50 200 - V/mV
CC
-1.5
CC
0-
-2 0 - VCC-2
V
CC
-1.5
- 350 - - 350 - nS
618 - 6 18 -mA
= 5V - 0.1 - - 0.1 - nA
= 30V - - 1.0 - - 1.0 µA
mV
nA
nA
V
mA
mV
NOTE 1
LM393/LM393A: 0 ≤ T
LM2903: -40 ≤ T
LM2903I: -40 ≤ T
LM293/LM293A : -25 ≤ T
≤ +85°C
A
≤ +105°C
A
A
≤ +70°C
≤ +85°C
A
3
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