About Analog Comparators

Analog Comparators

Analog comparators are devices used to compare two analog voltage signals and output either a digital high state or a digital low state depending on whether the compared signals are above or below a certain reference voltage. Dubbed the “World’s Simplest Microprocessor” by industry analysts, an analog comparator consists of an operational amplifier circuitry and a few resistors and capacitors. The operational amplifier provides power and the resistors and capacitors provide the necessary timing-related delay to the input signals. Generally, when the two input signals exceed the reference voltage, the output of the comparator is a logic high and when the input signals are below the reference, the output is a logic low. The thresholds for the inputs can be predetermined or can be adjustable depending on the application requirements. Analog comparators can also be made with programmable input thresholds or limits. These are useful in sensors or actuators that need to be adjusted to appropriate ranges.

Analog Comparators

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Image	Stock Code(▲▼)	Description	Manufacturer	Availability ⓘ (▲▼)	Price(AUD) (Ex. GST)(▲▼)	Enter Qty	Series	Number of Channels	Output Type	Response Time	Comparator Type	Ib - Input Bias Current	Vos - Input Offset Voltage	Supply Voltage - Max	Supply Voltage - Min	Operating Supply Current	Supply Current per Channel	Mounting Style	Minimum Operating Temperature	Maximum Operating Temperature	Pd - Power Dissipation	Package / Case	Qualification	Packaging	Output Current per Channel	Supply Current

LM393ST

ROHM Semiconductor Analog Comparators COMPARATOR DUAL -18V36V 8PIN
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ROHM

0
6 to 16 Weeks

February 2027

February 2027
	S	M	T	W	T	F	S
6	31	1	2	3	4	5	6
7	7	8	9	10	11	12	13
8	14	15	16	17	18	19	20
9	21	22	23	24	25	26	27
10	28	1	2	3	4	5	6
11	7	8	9	10	11	12	13

AUD 0.1762

Multiples of: 4000

Lm393

2 Channel

Cmos, Ttl

1.3 us

General Purpose

25 nA

2 mV

36 V

2 V

0.8 mA

Smd/Smt

0 C

+ 70 C

MSOP - 8

Reel

LM2901N

LM2901N QUAD VOLT COMP DIL14
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

STMicroelectronics

0
Ships to you
by Thu. 24 Sep

September 2026

September 2026
	S	M	T	W	T	F	S
36	30	31	1	2	3	4	5
37	6	7	8	9	10	11	12
38	13	14	15	16	17	18	19
39	20	21	22	23	24	25	26
40	27	28	29	30	1	2	3
41	4	5	6	7	8	9	10

AUD 0.1763

Multiples of: 1

Open Collector

300 ns

Open Collector, Open Drain

2 V to 36 V , ± 1 V to ± 18 V

2 V

- 40 C to + 125 C

- 40 C

PDIP - 14

Tube

800 uA

LM239ADRE4

Comparator Quad ±15V/30V Automotive 14-Pin SOIC T/R
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Texas Instruments

0
6 to 16 Weeks

February 2027

February 2027
	S	M	T	W	T	F	S
6	31	1	2	3	4	5	6
7	7	8	9	10	11	12	13
8	14	15	16	17	18	19	20
9	21	22	23	24	25	26	27
10	28	1	2	3	4	5	6
11	7	8	9	10	11	12	13

AUD 0.1778

Multiples of: 1

Lm239a

4 Channel

Open Collector, Open Drain

300 ns

Differential

250 nA

3 mV

30 V

2 V

500 uA

Smd/Smt

- 25 C

+ 85 C

2500

Lm239ade4

6 mA

GSV331R-CR

SC-70-5 Comparators ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Gainsil

0
6 to 16 Weeks

February 2027

February 2027
	S	M	T	W	T	F	S
6	31	1	2	3	4	5	6
7	7	8	9	10	11	12	13
8	14	15	16	17	18	19	20
9	21	22	23	24	25	26	27
10	28	1	2	3	4	5	6
11	7	8	9	10	11	12	13

AUD 0.1785

Multiples of: 5

SC - 70 - 5

LM2901PWRG3

Comparator ICs Quad Diff Comparator
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Texas Instruments

0
6 to 16 Weeks

February 2027

February 2027
	S	M	T	W	T	F	S
6	31	1	2	3	4	5	6
7	7	8	9	10	11	12	13
8	14	15	16	17	18	19	20
9	21	22	23	24	25	26	27
10	28	1	2	3	4	5	6
11	7	8	9	10	11	12	13

AUD 0.1804

Multiples of: 4000

Lm2901

4 Channel

Open Collector, Open Drain

1.3 us

Differential

250 nA

7 mV

2 v to 30 V

2 V

500 uA

2 mA

Smd/Smt

- 40 C

+ 125 C

2000

Reel

0.1 nA

TS393CD C3

Comparator Dual ±18V/36V Automotive
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Taiwan Semiconductor

0
6 to 16 Weeks

February 2027

February 2027
	S	M	T	W	T	F	S
6	31	1	2	3	4	5	6
7	7	8	9	10	11	12	13
8	14	15	16	17	18	19	20
9	21	22	23	24	25	26	27
10	28	1	2	3	4	5	6
11	7	8	9	10	11	12	13

AUD 0.1814

Multiples of: 500

LM2903N

Analog Comparators Lo-Pwr Dual Voltage
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

STMicroelectronics

0
6 to 16 Weeks

February 2027

February 2027
	S	M	T	W	T	F	S
6	31	1	2	3	4	5	6
7	7	8	9	10	11	12	13
8	14	15	16	17	18	19	20
9	21	22	23	24	25	26	27
10	28	1	2	3	4	5	6
11	7	8	9	10	11	12	13

AUD 0.1833

Multiples of: 1

Lm2903

2 Channel

Open Collector

1.3 us

25 nA

7 mV

36 V

2 V

1 mA

Through Hole

- 40 C

+ 125 C

1250 mW

Tube

4 mA

LM393DGKR

ROHM Semiconductor Analog Comparators COMPARATOR DUAL -18V36V 8PIN
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ROHM

0
6 to 16 Weeks

February 2027

February 2027
	S	M	T	W	T	F	S
6	31	1	2	3	4	5	6
7	7	8	9	10	11	12	13
8	14	15	16	17	18	19	20
9	21	22	23	24	25	26	27
10	28	1	2	3	4	5	6
11	7	8	9	10	11	12	13

AUD 0.1838

Multiples of: 1

Lm393

2 Channel

Rail - To - Rail

1.3 us

General Purpose

50 nA

2 mV

36 V

2 V

0.8 mA

Smd/Smt

0 C

+ 70 C

MSOP - 8

Reel

LM339NE4

Comparator ICs Quad Differential Comparator
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Texas Instruments

0
6 to 16 Weeks

February 2027

February 2027
	S	M	T	W	T	F	S
6	31	1	2	3	4	5	6
7	7	8	9	10	11	12	13
8	14	15	16	17	18	19	20
9	21	22	23	24	25	26	27
10	28	1	2	3	4	5	6
11	7	8	9	10	11	12	13

AUD 0.1861

Multiples of: 1000

Lm339

4 Channel

Open Collector, Open Drain

1.3 us

Differential

50 nA

5 mV

2 v to 30 V

1 V

2 mA

Through Hole

0 C

+ 70 C

Tube

6 mA

LM2901DRG3

Comparator ICs Quad Diff Comparator
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Texas Instruments

0
6 to 16 Weeks

February 2027