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LM339 Quad Comparator
LM339
Texas Instrumentsic amplifier
The LM339 contains four independent voltage comparators that operate from a single 2V to 36V supply. Its common-mode input range includes ground, and the open-collector outputs are compatible with TTL, MOS and CMOS logic.
In stock
Specifications
9- Operating Voltage
- 2 to 36 V
- Supply Current
- 0.8 mA
- Response Time
- 1.3 μs
- Input Offset Voltage
- 9 mV
- Input Bias Current
- 250 nA
- Output Sink Current
- 6 mA
- Channels
- 4
- Operating Temperature Range
- 0 to 70 °C
- Package Types
- SOIC, PDIP, TSSOP, SOP, SSOP, WQFN
Pinout
14| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | OUT1 | GPIO | Output of comparator 2 (some makers transpose channels 1 and 2). |
| 2 | OUT2 | GPIO | Output of comparator 1. |
| 3 | VCC | POWER | Positive supply. |
| 4 | IN2- | GPIO | Negative input of comparator 1. |
| 5 | IN2+ | GPIO | Positive input of comparator 1. |
| 6 | IN1- | GPIO | Negative input of comparator 2. |
| 7 | IN1+ | GPIO | Positive input of comparator 2. |
| 8 | IN3- | GPIO | Negative input of comparator 3. |
| 9 | IN3+ | GPIO | Positive input of comparator 3. |
| 10 | IN4- | GPIO | Negative input of comparator 4. |
| 11 | IN4+ | GPIO | Positive input of comparator 4. |
| 12 | GND | GND | Negative supply / ground. |
| 13 | OUT4 | GPIO | Output of comparator 4. |
| 14 | OUT3 | GPIO | Output of comparator 3. |
Interactive pinout
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LM339
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