©2000 Fairchild Semiconductor International
Rev. 5.0
Features
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•Single Supply Operation: 2V to 36V •Dual Supply Operation: ± 1V to ±18V
•Allow Comparison of V oltages Near Ground Potential •Low Current Drain 800µA Typ.•Compatible with all Forms of Logic •Low Input Bias Current 25nA Typ.•Low Input Offt Current ±5nA Typ.•
Low Offt V oltage ±1mV Typ.
Descritpion
The LM2903,LM393/LM393A consist of two independent voltage comparators designed to operate from a single power supply over a wide voltage range.
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8-DIP
8-SOP
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1
Internal Block Diagram
LM2903,LM393/LM393A
Dual Differential Comparator
LM2903,LM393/LM393A
2
Schematic Diagram
Absolute Maximum Ratings
Parameter
Symbol Value Unit
Power Supply Voltage
V CC ±18 or 36varnish
V Differential Input Voltage V I(DIFF)36V Input Voltage
V I - 0.3 to +36V Output Short Circuit to GND -Continuous
-Power Dissipation P D 570mW Operating Temperature LM393/LM393A LM2903
T OPR 0 ~ + 70- 40 ~ + 85°C Storage Temperature
facial
T STG
- 65 ~ + 150
°C
LM2903,LM393/LM393A英语教师节祝福语
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Electrical Characteristics
(V CC =5V , T A =25°C, unless otherwi specified)NOTE 1
LM393/LM393A: 0≤T A ≤ +70°C LM2903: -40≤T A ≤ +85°C
Parameter
Symbol恐龙的英语
Conditions LM393A
LM393Unit
Min.Typ.Max.Min.Typ.Max.Input Offt Voltage V IO
V O(P) =1.4V, R S =0Ω
-±1±2-±1±5mV V CM = 0 to 1.5V
NOTE 1
--±4.0--±9.0Input Offt Current I IO -±5±50-±5±50nA NOTE 1--±150--±150Input Bias Current I BIAS
-65250-65250nA
NOTE 1
--400--400Input Common Mode
Voltage Range V I(R)0
-
V CC -1.50-V CC -1.5V NOTE 1
0-V CC -20-V CC -2Supply Current I CC R L = ∞
-0.61-0.61mA R L = ∞, V CC = 30V -0.8 2.5-0.8 2.5Voltage Gain G V V CC =15V, R L ≥15K Ω (for large V O(P-P)swing )50200-50200-V/mV Large Signal Respon Time t RES V I =TTL Logic Swing V REF =1.4V, V RL =5V,R L =5.1K Ω
-350--350-nS Respon Time t RES V RL =5V, R L =5.1K Ω- 1.4-- 1.4-µS Output Sink Current I SINK V I(-)≥1V, V I(+) =0V, V O(P)≤1.5V 618-618-mA
Output Saturation Voltage V SAT
V I(-)≥1V, VI(+) =0V -160400-160400mV I SINK = 4mA
NOTE 1--700--700Output Leakage Currentthelittleprince
I O(LKG)
V I(-) = 0V,
V I(+) = 1V
V O(P) = 5V -0.1--0.1-nA V O(P) = 30V -- 1.0
-- 1.0
µA
LM2903,LM393/LM393A
fmx4
Electrical Characteristics (Continued)
(V CC =5V , T A =25°C, unless otherwi specified)
NOTE 1
LM393/LM393A: 0≤T A ≤ +70°C LM2903: -40≤T A ≤ +85°C
checking
Parameter
学英语报纸答案Symbol Conditions
LM2903
Unit Min.Typ.Max.Input Offt Voltage V IO V O(P) =1.4V, R S =0Ω-±1±7mV V CM = 0 to 1.5V
NOTE 1-±9±15Input Offt Current I IO -±5±50nA NOTE 1-±50±200Input Bias Current I BIAS -65250nA NOTE 1--500Input Common Mode Voltage Range V I(R)0-V CC -1.5V NOTE 1
0-V CC -2Supply Current I CC R L = ∞
-0.61mA R L = ∞, V CC = 30V
-1 2.5Voltage Gain
G V V CC =15V, R L ≥15K Ω(for large V O(P-P)swing )
25100- V/mV Large Signal Respon Time t RES V I =TTL Logic Swing
V REF =1.4V, V RL =5V, R L =5.1K Ω-350-nS Respon Time t RES V RL =5V, R L =5.1K Ω
- 1.5-µS Output Sink Current I SINK V I(-)≥1V, V I(+) =0V, V O(P) ≤1.5V 616-mA Output Saturation Voltage V SAT V I(-)≥1V, VI(+) =0V -160400mV I SINK = 4mA NOTE 1--700Output Leakage Current
I O(LKG)
V I(-) = 0V,V O(P) = 5V -0.1-nA V I(+) = 1V
V O(P) = 30V
-- 1.0
µA
LM2903,LM393/LM393A
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Typical Performance Characteristics
Figure 1.Supply Current vs Sopply Voltage Figure 2.Input Current vs Sopply Voltage
Figure 3.Output Saturation Voltage vs Sink Current
Figure 4.Respo Time for Various Input
Overdrive-Negative Transition
Figure 5.Respo Time for Various Input
Overdive-Positive Transition
