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The LM193, LM293, and LM393 devices consist of two independent low voltage comparators designed specifically to operate from a single 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: 2 V to 36 V or ±1 V to ±18 V
- Very low supply current (0.45 mA) independent of supply voltage (1 mW/comparator at 5 V)
- Low input bias current: 20 nA typ.
- Low input offset current: ±3 nA typ.
- Low input offset voltage: ±1 mV typ.
- Input common-mode voltage range includes ground
- Low output saturation voltage: 80 mV typ. (Isink = 4 mA)
- Differential input voltage range equal to the supply voltage
- TTL, DTL, ECL, MOS, CMOS compatible outputs
- Available in DFN8 2x2, MiniSO8, TSSOP8, and SO8 packages
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 | |||||||||
| LM393PT | TSSOP-8 | Tape And Reel | 0 | 70 | Active | EAR99 | CHINA | 0.15 / 1k | Buy now | Check Availability |
| LM393D | SO-8 | Tube | 0 | 70 | Active | EAR99 | CHINA | 0.15 / 1k | Buy now | Check Availability |
| LM393QT | UFSON 8 2x2x0.6 | Tape And Reel | 0 | 70 | Active | EAR99 | CHINA | 0.14 / 1k | Get sample | Check Availability |
| LM393ADT | SO-8 | Tape And Reel | 0 | 70 | Active | EAR99 | MOROCCO | 0.15 / 1k | Buy now | Check Availability |
| LM393ST | MSOP/TSSOP 8 | Tape And Reel | 0 | 70 | Active | EAR99 | MALAYSIA | 0.15 / 1k | Buy now | Check Availability |
| LM393DT | SO-8 | Tape And Reel | 0 | 70 | Active | EAR99 | CHINA | 0.097 / 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** |
|---|---|---|---|---|---|
| LM393ADT | Active | SO-8 | Industrial | Ecopack3 | |
| LM393D | Active | SO-8 | Industrial | Ecopack1 | |
| LM393DT | Active | SO-8 | Industrial | Ecopack3 | |
| LM393PT | Active | TSSOP-8 | Industrial | Ecopack3 | |
| LM393QT | Active | UFSON 8 2x2x0.6 | Industrial | Ecopack3 | |
| LM393ST | Active | MSOP/TSSOP 8 | Industrial | Ecopack3 |
LM393ADT
Package:
SO-8Material 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.
