1OUT

1

1INí

2

1IN+

3

GND

4

7

2OUT

6

2INí

5

2IN+

0.1PF

Ground

Bypass

Capacitor

Negative Supply or Ground

Positive Supply

0.1PF

Ground

Only needed

for dual power

supplies

14

13

12

11

8

9

10

3INí

3IN+

4INí

4IN+

3OUT

4OUT

10

LM2901-Q1, LM2901V-Q1, LM2901AV-Q1

SLCS142E – DECEMBER 2003 – REVISED MAY 2016

www.ti.com

Product Folder Links: LM2901-Q1 LM2901V-Q1 LM2901AV-Q1

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Copyright © 2003–2016, Texas Instruments Incorporated

9 Power Supply Recommendations

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

on the supply pin to reject any variation on the supply voltage. This variation can take away from some of 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, maintaining a stable power supply with minimized noise

and glitches, which can affect the high-level input common-mode voltage range, is important. To achieve a stable

power supply, place a bypass capacitor between the positive and negative (if available) supply voltage and

ground. If a negative supply is not being used, do not put a capacitor between the GND pin of the IC and system

ground.

10.2 Layout Example

Figure 7. LM2901x-Q1 Layout Example