VCC

Ground

6

5

7

1

2

3

4

8

Ground

PF

1IN-

1IN+

GND

2OUT

2IN-

2IN+

1OUT

VCC

OK

VCC or GND

Better

Input Resistors

Close to device

±1

0

1

2

3

4

5

6

-0.25

0.25

0.75

1.25

1.75

2.25

Time (usec)

5mV OD

20mV OD

100mV OD

C004

±1

0

1

2

3

4

5

6

±0.25 0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00

Time (usec)

5mV OD

20mV OD

100mV OD

C006

10

LM193-MIL

SLIS183 – JUNE 2017

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Product Folder Links: LM193-MIL

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Copyright © 2017, Texas Instruments Incorporated

8.2.3 Application Curves

Figure 8. Response Time for Various Overdrives

(Positive Transition)

Figure 9. Response Time for Various Overdrives

(Negative Transition)

9 Power Supply Recommendations

For fast response and comparison applications with noisy or AC inputs, TI recommends to use a bypass

capacitor on the supply pin to reject any variation on the supply voltage. This variation can eat into the input

common-mode range of the comparator and create an inaccurate comparison.

10 Layout

10.1 Layout Guidelines

For accurate comparator applications without hysteresis it is important maintain a stable power supply with

minimized noise and glitches. To achieve this, it is best to add a bypass capacitor between the supply voltage

and ground. This should be implemented on the positive power supply and negative supply (if available). If a

negative supply is not being used, do not put a capacitor between the device's GND pin and system ground.

Minimize coupling between outputs and inverting inputs to prevent output oscillations. Do not run output and

reduce coupling. When series resistance is added to inputs, place resistor close to the device.

10.2 Layout Example

Figure 10. LM2903 Layout Example Used as an Example