# LM393B, LM2903B, LM193, LM293, LM393 & LM2903 Dual Comparators## Features ️· New: LM393B and LM2903B versions available.
️· Improved Specifications: Enhanced performance in B-versions (e.g., up to 38V rating, 2kV ESD, low offset, current, propagation delay).
️· Compatibility: B-versions are drop-in replacements for previous A and V grades.
️· Input Range: Common-mode input can include ground.
️· Differential Input: Up to ±38V.
️· Output: Compatible with TTL, MOS, and CMOS logic.
## Applications ️· Vacuum robots
️· Single-phase UPS
️· Server PSU
️· Cordless power tools
️· Wireless infrastructure
️· Appliances
️· Building automation
️· Factory automation & control
️· Motor drives
️· Infotainment & cluster
## DescriptionThe LM393B & LM2903B are next-generation dual comparators, offering improved specifications for cost-sensitive applications. They operate from a single power supply and are designed for versatility. They feature low offset voltage, high supply voltage capability, low power consumption, and improved ESD performance.
## Device Information
| Part Number |
Package |
Body Size (Nom) |
| LM393B/LM2903B/LM193/LM293/LM293A/LM393/LM393A/LM2903/LM2903V |
SOIC (8) |
4.90mm x 3.91mm |
| LM393B/LM293/LM293A/LM393/LM393A/LM2903 |
VSSOP (8) |
3.00mm x 3.00mm |
| LM293/LM393/LM393A/LM2903 |
PDIP (8) |
9.81mm x 6.35mm |
| LM393/LM393A/LM2903 |
SO (8) |
6.20mm x 5.30mm |
| LM393B/LM293/LM293A/LM393/LM2903/LM2903V |
TSSOP (8) |
3.00mm x 4.40mm |
| LM393B |
SOT-23 (8) |
2.90mm x 1.60mm |
| LM393B/LM2903B |
WSON (8) |
2.00mm x 2.00mm |
## Electrical Characteristics (LM393B) ️· Supply Voltage: 3 to 36V
️· Input Offset Voltage: ±0.37mV
️· Input Bias Current: 3.5nA
️· Quiescent Current: 600µA
️· Response Time: 1µs
## Thermal Information ️· Junction Temperature: 150°C
️· Specific thermal resistance values available for various packages (SOIC, VSSOP, PDIP, etc.).