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This family of devices consists of four independent precision-voltage comparators with an offset voltage specification as low as 2 mV maximum for LM339A, LM239A, and LM139A. Each comparator has been designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible.
These comparators also have a unique characteristic in that the input common mode voltage range includes ground even though operated from a single power supply voltage.
Key Features
- Wide single supply voltage range or dual supplies for all devices: +2 to +36 V or ±1 V to ±18 V
- Very low supply current (1.1 mA) independent of supply voltage
- Low input bias current: 25 nA typ
- Low input offset current: ±5 nA typ
- Low input offset voltage: ±1 mV typ
- Input common-mode voltage range includes ground
- Low output saturation voltage: 250 mV typ;(ISINK = 4 mA)
- Differential input voltage range equal to the supply voltage
- TTL, DTL, ECL, MOS, CMOS compatible outputs
Sample & Buy
| Part Number | Package | Packing Type | Temperature (°C) | Marketing Status | ECCN (US) | Country of Origin | Budgetary Price (US$)*/Qty | Order from ST | Order from Distributors | |
|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||
| LM239APT | TSSOP-14 | Tape And Reel | -40 | 105 | Active | EAR99 | MOROCCO | 0.199 / 1k | Buy now | Check Availability |
| LM239D | SO-14 | Tube | -40 | 105 | Active | EAR99 | MOROCCO | 0.13 / 1k | Buy now | Check Availability |
| LM239DT | SO-14 | Tape And Reel | -40 | 105 | Active | EAR99 | MOROCCO | 0.109 / 1k | Buy now | Check Availability |
| LM239ADT | SO-14 | Tape And Reel | -40 | 105 | Active | EAR99 | MOROCCO | 0.16 / 1k | Buy now | Check Availability |
| LM239PT | TSSOP-14 | Tape And Reel | -40 | 105 | Active | EAR99 | PHILIPPINES | 0.116 / 1k | Buy now | Check Availability |
| LM239QT | VFQFPN 16 3x3x0.9 | Tape And Reel | -40 | 105 | Active | EAR99 | MALAYSIA | 0.116 / 1k | Buy now | Check Availability |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
Development Tools
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Picture Part number Manufacturer Description 
ST-OPAMPS-APP ST Operational amplifier and comparator application for smartphones and tablets Part NumberOperational amplifier and comparator application for smartphones and tablets
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| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LM239ADT | Active | SO-14 | Industrial | Ecopack3 | |
| LM239APT | Active | TSSOP-14 | Industrial | Ecopack3 | |
| LM239D | Active | SO-14 | Industrial | Ecopack3 | |
| LM239DT | Active | SO-14 | Industrial | Ecopack3 | |
| LM239PT | Active | TSSOP-14 | Industrial | Ecopack3 | |
| LM239QT | Active | VFQFPN 16 3x3x0.9 | Industrial | Ecopack3 |
LM239PT
Package:
TSSOP-14Material Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
