Datasheet KA319 Datasheet (Fairchild Semiconductor)

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

KA319

Typical Performance Characteristics

Figure 1. Input Current Figure 2. Output Saturation Voltage

Figure 3. Transfer Function Figure 4. Response Time for Various Input Overdriver

Figure 5. Response Time Various Input Overdriver Figure 6. Input Char acteristics

4

Typical Performance Characteristics (continued)

Figure 7. Response Time for Various Input Overdriver Figure 8. Response Time for Various Input Overdriver

KA319

Figure 9. Supply Current Figure 10. Supply Current

Figure 11. Common Mode Limits Figure 12. Output Limiting Characteristics

5

KA319

Mechanical Dimensions

Package

6.40 ±0.20

0.252

±0.008

14-DIP

Dimensions in millimeters

2.08

0.082

()

#1

#7

7.62

0.300

#14

#8

MAX

19.80

0.780

3.25 ±0.20

0.128 ±0.008

19.40 ±0.20

0.764 ±0.008

±0.10

0.46

0.20

0.008

0.018 ±0.004

2.54

MIN

1.50 ±0.10

0.100

0.059 ±0.004

5.08

MAX

0.200

+0.10

0.25

–0.05
+0.004

0.010

0~15°

6

–0.002

3.30 ±0.30

0.130 ±0.012

KA319

Mechanical Dimensions

Package

#1

(Continued)

14-SOP

#14

1.55

0.061

MAX

8.70

0.343

Dimensions in millimeters

0.05

MIN

0.002

±0.10

±0.004

0.47

0.10

±0.008

±0.20

8.56

0.337

-0.05

+

0.406

0.004

+

0.019

()

-0.002

0.016

0.10

+

-0.05

0.20

0.60

0.024

0.004

+

-0.002

0.008

±0.20

±0.008

#7

6.00

0.236

3.95

0.156

5.72

0.225

±0.30

±0.012

±0.20

±0.008

#8

0~8°

1.80

0.071

MAX

MAX0.10

MAX0.004

1.27

0.050

7

KA319

Ordering Information

Product Number Package Operating Temperature

KA319 14-DIP

KA319D 14-SOP

0 ~ + 70°C

8

KA319

9

KA319

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURT HER NOTICE TO ANY
PRODUCTS HEREI N TO IMPROVE RELIABILITY, FUNCTIO N OR DESIGN. FAIRCH IL D DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER IT S PATENT RIGHTS, NOR THE RIGHTS OF OTHE RS.

LIFE SUPPORT POL I CY

FAIRCHILD’S PR ODUCTS ARE NOT AUTH ORIZED FOR USE AS C RITICAL COMPONENT S IN LIFE SUPPORT DE VICES
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

2. A critical component in any component of a life support
device or sy stem whose fai lure to perform can be
reasonably expec ted to cause the failur e of the life support
device or system, or to affect its safety or effec t iv ene ss .

instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.

www.fairchildsemi.com

10/22/01 0.0m 001

 2001 Fairchild Semiconductor Corporation

Stock#DSxxxxxxxx