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PDF LM319 Data sheet ( Hoja de datos )

Número de pieza LM319
Descripción Dual voltage comparator
Fabricantes NXP Semiconductors 
Logotipo NXP Semiconductors Logotipo

LM319 datasheet


1. - Dual Comparator, DIP 14






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Philips Semiconductors Linear Products
Dual voltage comparator
Product specification
LM219/319
DESCRIPTION
The LM319 series are precision high-speed dual comparators
fabricated on a single monolithic chip. They are designed to operate
over a wide range of supply voltages down to a single 5V logic
supply and ground. Further, they have higher gain and lower input
currents than devices like the µA710. The uncommitted collector of
the output stage makes the LM319 compatible with RTL, DTL, and
TTL as well as capable of driving lamps and relays at currents up to
25mA.
Although designed primarily for applications requiring operation from
digital logic supplies, the LM319 series are fully specified for power
supplies up to ±15V. It features faster response than the LM111 at
the expense of higher power dissipation. However, the high-speed,
wide operating voltage range and low package count make the
LM319 much more versatile than older devices like the µA711.
FEATURES
Two independent comparators
Operates from a single 5V supply
Typically 80ns response time at ±15V
Minimum fanout of 3 (each side)
PIN CONFIGURATION
D, N Packages
NC 1
NC 2
GND 1 3
+ INPUT 1 4
– INPUT 1 5
V– 6
OUTPUT 2 7
14 NC
13 NC
12 OUTPUT 1
11 V+
10 – INPUT 2
9 + INPUT 2
8 GND 2
TOP VIEW
Maximum input current of 1µA over temperature
Inputs and outputs can be isolated from system ground
High common-mode slew rate
EQUIVALENT SCHEMATIC
R2
4K
R1
3.5K
R3
4K
Q4
R6 R7
3K 3K
Q8
Q9
V+
INPUTS
+
Q3
Q2
Q1
R4
3K
R5
3K
Q5
Q7
C1
Q6 18pF
R10
170
R8
2K
R11
13K
R12
13K
Q15
Q22
R25
600
R9
18K
R23
4K
Q21
R22 R20
60 3.6K
R18
1.9K
Q11
Q20
TO OTHER
HALF
R24
250
Q19
R2
900
R19
250
Q18
Q10
R13
600
R14
2K
Q13
C14
Q12
R15
300
OUTPUT
Q16
R16
600
Q12
R17 3
V– GND
August 31, 1994
277 853-0928 13721

1 page




LM319 pdf
Philips Semiconductors Linear Products
Dual voltage comparator
Product specification
LM219/319
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Input Currents
250
VS = +15V
200
BIAS
150
100
50 OFFSET
0
-55
-15 5
45 85
TEMPERATURE – oC
125
Common-Mode Limits
V+
-0.4 VS+ = 5.0V, VS- = 0
-0.8
VS = +15V
-1.2
-1.6
REFERRED TO SUPPLY VOLTAGES
-2.0
1.2
0.8
0.4 VS = +15V, VS+ = 5.0V, V- = 0
V-
-55 -15 5 45 85
TEMPERATURE – oC
125
TYPICAL APPLICATIONS
5V 28V
INPUTS
+ 1/2
LM319
-
30V
1N914
Supply Current
12
10
POSITIVE SUPPLY, VS = +15V
8
6 POSITIVE SUPPLY, VS+ = 5.0V, VS- = 0
4
2
0
-55
NEGATIVE SUPPLY, VS = +15V
-15 5
45 85
TEMPERATURE – oC
125
190 +
1N914
2.7k 1k
Relay Driver
5V
500
VUT + 1/2
LM319
TTL
VIN -
+ 1/2
LM319
VLT -
Window Detector
NOTES:
VOUT = 5V for VLT < VIN < VUT
VOUT = 0V for VIN < VLT or VIN > VUT
7.5M
3k
1.2V
+ 1/2
LM319
-
500pF
1k
3k
+ 1/2
LM319
-
1N914
+5V
500
1N914
2N2222
SQUARE WAVE OUTPUT
1kHz to 1MHz
TRIANGLE WAVE OUTPUT
NOTE:
Frequency adjust must be buffered for RL < 10
-5V
Wide Range Variable Oscillator
August 31, 1994
281

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