Fairchild Semiconductor KA319 Datasheet
KA319
Dual Comparator
www.fairchildsemi.com
Features
• Operates from a single 5V supply
• Ty pically 80n s respons e time at ±15V
• Open collector outputs : up to + 35V
• High output drive current : 25mA
• Inputs and outputs can be isola te d fr om syste m gro un d
• Minimum fan-out of 2 (each side)
• Two independent comparators
Description
The KA319 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
KA319 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 KA319 ideal for application in fast A/D
converts, level shifters, oscillators, and multivibrators.
14-DIP
1
14-SOP
1
Internal Block Diagram
©2001 Fairchild Semiconductor Corporation
Rev. 1.0.2
KA319
Schematic Diagram
Absolute Maximum Ratings
Parameter Symbol Value Unit
Supply Voltage V
Output to Negative Supply Voltage V
Ground to Negative Supply Voltage V
Ground to Positive Supply Voltage V
Differential Input Voltage V
Input Voltage V
CC
- V
O
EE
CC
I(DIFF)
I
EE
Output Short Circuit Duration - 10 sec
Power Dissipation P
Operating Temperature Range KA319 T
Storage Temperature Range T
D
OPR
STG
36 V
36 V
25 V
18 V
5V
±15 V
500 mW
0 ~ + 70 °C
-65 ~ + 150 °C
2
Electrical Characteristics
(VCC = +15V, VEE = -15V, TA = 25°C, unless otherwise specified)
KA319
Parameter Symbol Conditions
Input Offset Voltage (Note 1) V
Input Offset Current (Note 1) I
Input Bias Current I
BIAS
Voltage Gain G
Response Time (Note 2) T
Saturation Voltage V
Output Leakage Current
I
O(LKG)
Input Voltage Range V
Differential Input Voltage V
Positive Supply Current I
Positive Supply Current I
I(DIFF)
CC1
CC2
Negative Supply Current I
IO
IO
V
RES
SAT
I(R)
EE
R
≤ 5KΩ
S
KA319
Min. Typ. Max.
- 2.0 8.0
Note 3 - - 10
- 10 200
Note 3 - - 300
- 150 1000
Note 3 - - 1200
Unit
mV
nA
nA
-840-V/mV
VCC = ±15V - 80 - ns
VCC=15V, V
= 4.5V,VEE = 0V
V
CC
V
≤ -10mV, IO ≤ 3.2mA
I
V
≥ 5mV, V
I
V
≥ 10mV, V
I
Note 3
= -15V , V
EE
≤ -5mV, I
I
= 25mA - 0.6 1.5
O
Note3 - 0.3 0.4
= 35V
O(P)
= 35V - 0.2 10
O(P)
V
= ±15V - ±13 -
CC
V
= 5V, VEE = 0V 1 - 3
CC
---
V
µANote 3 - - -
V
---±5V
VCC = 5V, VEE = 0V - 3.6 - m A
VCC = ±15V - 7.5 12.5 mA
VCC = ±15V - 3 5 mA
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. KA319 : 0 ≤ T
≤ +70°C
A
3
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