©2012 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.3
Features
• Operates From a Single 5V Supply
• Typically 80ns Response Time at ±15V
• Open Collector Outputs : up to +35V
• High Output Drive Current : 25mA
• Inputs and Outputs can be Isolated From System Ground
• Minimum Fan-Out of 2 (Each Side)
• Two Independent Comparators
Description
The LM319 is a dual high speed voltage comparator
designed to operate from a single +5V supply up to ±15V
dual supplies. Open 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. Typical response time of 80ns with ±15V power
supplies makes the LM319 ideal for application in fast A/D
converts, level shiftier, oscillators, and multivibrato rs.
14-SOP
14-DIP
1
1
Internal Block Diagram
14
1
2
3
4
5
6
78
9
10
11
12
13
NC
NC
OUTPUT1
VCC
IN2 (-)
IN2 (+)
GND2
NC
NC
GND1
IN (+)
IN (-)
VEE
OUTPUT2
+
__
+
LM319
Dual Comparator
LM319
2
Schematic Diagram
Absolute Maximum Ratings
Parameter Symbol Value Unit
Supply Voltage VCC 36 V
Output to Negative Supply Voltage VO - VEE 36 V
Ground to Negative Supply Voltage VEE 25 V
Ground to Positive Supply Voltage VCC 18 V
Differential Input Voltage VI(DIFF) 5V
Input Voltage VI±15 V
Output Short Circuit Duration - 10 sec
Power Dissipation PD500 mW
Thermal Resistance Junction-Ambient Max. Rθja 250 °C/W
Operating Temperature Range TOPR 0 ~ +70 °C
Storage Temperature Range TSTG -65 ~ +150 °C
Q1
Q2
Q3
Q4
Q5
Q6
Q7 Q8
Q9
Q10
Q11 Q12
Q13
Q14
Q15
Q16
Q17
Q18
Q19
Q20
Q21
Q22
R1
R2 R3
R4 R5
R6 R7
R8 R9
R10 R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
R23
R24
R25
C1
VCC
OUTPUT
GND
VEE
IN (-)
IN (+)
LM319
3
Electrical Characteristics
(VCC = +15V, VEE = -15V, TA = 25°C, unless otherwise specified)
Notes :
1. The offset voltage and offset currents given are the maximum values required to drive the output within a volt of either
supply with a 1mA load. Thus, these parameters define an error band and take into account the worst case effects of
voltage gain and input impedance.
2. The response time specified is for a 100mV input step with 5mV overdrive.
3. LM319 : 0 ≤ TA ≤ +70°C
Parameter Symbol Conditions LM319 Unit
Min. Typ. Max.
Input Offset Voltage (Note1) VIO RS ≤ 5kΩ- 2.0 8.0 mV
Note3 - - 10
Input Offset Current (Note1) IIO -10 200
nA
Note3 - - 300
Input Bias Current IBIAS - 150 1000 nA
Note3 - - 1200
Voltage Gain GV-840-V/mV
Response Time (Note2) TRES VCC = ±15V - 80 - ns
Saturation Voltage VSAT VCC=15V, VEE = -1 5V , VI ≤ -5mV, IO = 25mA - 0.6 1.5 V
VCC = 4.5V,VEE = 0V
VI ≤ -10mV, IO ≤ 3.2mA Note3 - 0.3 0.4
Output Leakage Current IO(LKG) VI ≥ 5mV, VO(P) = 35V ---
μANote3 - - -
VI ≥ 10mV, VO(P) = 35V - 0.2 10
Input Voltage Ra ng e VI(R) Note3 VCC = ±15V - ±13 - V
VCC = 5V, VEE = 0V 1 - 3
Differential Input Voltage VI(DIFF) ---±5V
Positive Supply Current ICC1 VCC = 5V, VEE = 0V - 3.6 - mA
Positive Supply Current ICC2 VCC = ±15V - 7.5 12.5 mA
Negative Supply Current IEE VCC = ±15V - 3 5 mA
LM319
4
Typical Performance Characteristics
Figure 1. Input Current Figure 2. Output Saturation Volta ge
Figure 3. Transfer Function Figure 4. Response Time for Vari ous Input Overdriver
Figure 5. Response Time Various Input Overdriver Figure 6. Input Characteristics
LM319
5
Typical Performance Characteristics (Continued)
Figure 7. Response Time for Various Input Overdriver Figure 8. R esponse Time for Various Input Overdriver
Figure 9. Supply Current Figure 10. Supply Current
Figure 11. Common Mode Limits Figure 12. Output Limiting Characteristics
LM319
6
Mechanical Dimensions
Package Dimensions in millimeters
6.40 ±0.20
7.62
0.300
2.54
0.100
#
1
#
7#8
#14
0.252 ±0.008
0~15°
0.25
+0.10
–0.05
0.010
+0.004
–0.002
3.30 ±0.30
0.130 ±0.012
3.25 ±0.20
0.128 ±0.008
19.40 ±0.20
0.764 ±0.008
19.80
0.780 MAX
5.08
0.200
0.20
0.008
MAX
MIN
2.08
0.082
(
)
0.46 ±0.10
0.018 ±0.004
0.059 ±0.004
1.50 ±0.10
14-DIP
LM319
7
Mechanical Dimensions (Continued)
Package Dimensions in millimeters
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14-SOP
LM319
1/17/12 0.0m 001
Stock#DS400473
© 2012 Fairchild Semiconductor Corporation
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
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Ordering Information
Product Number Package Operating Temperature
LM319N 14-DIP 0 ~ +70°C
LM319M 14-SOP
