LM293AN STMicroelectronics Integrated Circuit (Dual-In-Line Packages) In Stock
LM293AN is a dual voltage comparator from STMicroelectronics in a DIP-8 package, featuring open-collector outputs, input bias current below 0.3 µA, and wide supply voltage range, ideal for threshold detection and signal level-shifting circuits.
- Manufacturer
- STMicroelectronics
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LM293AN Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual independent comparator channels in a single DIP-8 package
- Open-collector output compatible with TTL and CMOS logic levels
- Wide supply voltage range: single 2 V to 36 V or dual ±1 V to ±18 V
- Input bias current maximum of 0.3 µA for low-source-impedance circuits
- Input offset voltage maximum of 4000 µV for precise threshold comparison
- Low supply current of 0.8 mA typical per comparator
- Industrial temperature range -40°C to +85°C
Applications
LM293AN is commonly deployed in window comparator circuits, battery charge controllers, and zero-crossing detection stages where precise voltage threshold detection is needed without external logic translation. Its open-collector outputs directly drive LED indicators, relay coils, and optocouplers, making it a staple building block in motor drive protection, power-supply supervisory circuits, and analog-to-digital signal conditioning boards.
Specifications
| YTEOL | 0 |
| Amplifier Type | COMPARATOR |
| Average Bias Current-Max (IIB) | 0.3 µA |
| Bias Current-Max (IIB) @25C | 0.1 µA |
| Input Offset Voltage-Max | 4000 µV |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Output Type | OPEN-COLLECTOR |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Response Time-Nom | 1300ns |
| Supply Current-Max | 2.5mA |
| Supply Voltage Limit-Max | 36V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | MATTE TIN |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage range does LM293AN support for single-supply and dual-supply designs?
LM293AN operates from a single supply of 2 V to 36 V or a dual supply of ±1 V to ±18 V, giving designers flexibility to integrate it directly into 5 V logic boards, 12 V automotive systems, or split-rail analog front-ends without additional level shifters.
How does LM293AN's open-collector output structure benefit relay and LED driver circuits?
The open-collector outputs can sink up to 16 mA and withstand up to 36 V when off, so they directly switch small relays, optocouplers, or LED indicator loads without a buffer stage, reducing component count and simplifying PCB layout in industrial threshold detection designs.
For a tight PCB layout with through-hole assembly, what are the key dimensions of the DIP-8 package used on LM293AN?
LM293AN is housed in a plastic DIP-8 package with 8 pins on a 2.54 mm pitch and a row spacing of 7.62 mm, fitting standard dual-in-line sockets and most through-hole PCB libraries; the package is lead-free with a JESD-609 e3 moisture rating.
Is LM293AN a suitable drop-in alternative to LM393 in comparator circuits?
LM293AN is functionally compatible with LM393 and LM2903 in most designs; all three share the same dual open-collector topology and similar input offset voltage around 4000 µV maximum. Designers switching from LM393 should verify supply voltage headroom and output sink current ratings match their specific load requirements.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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