LM393 SMD SO8 Dual Comparator IC

LM393 SMD SO8 Dual Voltage Comparator IC – Precision, Low Power, SO‑8 Package

LM393 SMD SO8 is a dual voltage comparator IC. It features two independent precision comparators in an SO‑8 surface-mount package. The LM393 comparator IC supports single‑supply voltages from 2 V to 36 V. It also accommodates split supplies between ±1 V and ±18 V.

Each comparator consumes about 0.4 mA supply current independent of supply voltage. The input offset voltage is as low as 2 mV typical (max 5 mV). Input bias current is approximately 25 nA. The input offset current is typically 5 nA.

The device offers a common-mode input range that includes ground. Differential input voltage range equals the supply voltage ±36 V. The open‑collector output can interface with TTL, CMOS, ECL, and DTL logic.

LM393 SO8 package body dimensions are roughly 6.2 mm × 5.3 mm. It is available in MiniSO8, DFN8, TSSOP8, and PDIP8 variants. Standard operating temperature is 0–70 °C for LM393; extended range options exist.

Typical applications include signal conditioning, sensor interfacing, circuit protection, voltage monitoring, and level detection in automation and automotive systemsPerceptive ComponentsTexas Instruments.

Key Specs Supply Voltage: 2 V to 36 V (±1 V to ±18 V) Supply Current: ~0.4 mA/comparator Input Offset Voltage: 2 mV typical, 5 mV max Input Bias Current: ~25 nA Offset Current: ~5 nA Common-Mode Range: Includes Ground Output: Open-Collector, TTL / CMOS Compatible Response Time: ~1.3 µs typical Package: SO‑8 SMD (also MiniSO8, TSSOP8, DFN8, PDIP8) Operating Temp: 0 °C to +70 ° C (extended versions available)