🔹 LM339DR SMD IC – Quad Differential Comparator (SOIC-14)
The LM339DR is a quad voltage comparator IC containing four independent precision comparators in a 14-pin SOIC surface-mount package . Designed for single or dual supply operation with a wide voltage range, it features open-collector outputs compatible with TTL, MOS, and CMOS logic, making it ideal for voltage level detection, zero-crossing detectors, and oscillator circuits .
✅ Specifications:
Part Number: LM339DR
Comparator Type: Quad Differential Comparator
Package: SOIC-14 (Surface Mount)
Supply Voltage (Single): 2V – 30V (36V max)
Supply Voltage (Dual): ±1V – ±15V
Input Offset Voltage: 5mV max
Input Bias Current: 250nA max
Response Time: 1.3µs (typical)
Output Type: Open-Collector, TTL/CMOS compatible
Supply Current: 500µA – 2.5mA
Output Current: 20mA (typical)
Operating Temperature: 0°C to 70°C
RoHS Compliant: Yes
📦 Features:
✔️ Four independent precision voltage comparators
✔️ Wide supply voltage range: single (2V–30V) or dual (±1V to ±15V)
✔️ Low input bias current and low input offset voltage
✔️ Input common-mode voltage range includes ground
✔️ Open-collector outputs for wired-AND logic
✔️ Low output saturation voltage (130mV @ 4mA)
✔️ TTL, MOS, and CMOS compatible outputs
✔️ Available in tape & reel packaging (2,500 units per reel)
📦 Applications:
✔️ Precision voltage level detection and comparison
✔️ Zero-crossing detectors
✔️ Window detectors and limit comparators
✔️ Oscillators and pulse generators
✔️ Battery monitors and overvoltage protection
✔️ Signal conditioning and analog-to-digital conversion
✔️ Industrial controls and automotive electronics
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