UTC339 Quad Differential Comparator IC

Description

UTC339 Quad Differential Comparator IC The UTC339 is a compact quad differential comparator designed to run from a single supply over a wide voltage range, making it suitable for many low-power and mixed-signal systems. Each of the four independent comparator channels accepts inputs that include ground in the common-mode range, so the device integrates easily into single-supply designs without additional level shifting. Its open-collector outputs allow wired-AND connections and easy interfacing to TTL, DTL and CMOS logic levels, giving designers flexibility for digital signalling and interrupt-style outputs. The chip emphasizes low supply current (typical ICC ~0.8–1.1 mA) and low input bias current, which helps preserve battery life in portable applications. It offers low input offset and modest gain suitable for threshold detection, zero-crossing, and simple waveform conditioning tasks. Output stages are designed for reliable sinking with low saturation voltage to drive logic inputs directly or through pull-up resistors to the chosen logic rail. Physically available in DIP-14, SOP-14 and TSSOP-14 packages, the UTC339 is straightforward to prototype with (DIP) and compact for production (SOP/TSSOP). Typical use cases include threshold comparators, window detectors, pulse shaping, and supervisory circuits where inexpensive, low-power, and TTL/CMOS-compatible comparators are required. The device’s broad supply range (2–36V) and open-collector outputs make it a flexible building block in analog and mixed-signal boards. Features: Single or dual supply operation. Wide operating supply range (Vcc = 2V ~ 36V). Input common-mode voltage includes ground. Low supply current drain ICC = 0.8 mA (typical). Open-collector outputs for wired-AND connection. Low input bias current Ibias = 25 nA (typical). Low output saturation voltage. Output compatible with TTL, DTL, and CMOS logic systems. Specifications: Parameter: Value: Supply voltage range: 2 V to 36 V (single supply). Absolute max supply voltage: ±18 V or 36 V. Differential input voltage: 36 V. Input voltage range: -0.3 V to 36 V. Power dissipation: 570 mW. Operating temperature: 0 °C to +70 °C. Storage temperature: -65 °C to +150 °C. Typical supply current (Icc): ~0.8–1.1 mA (depending on test conditions). Input offset voltage (VIO): Typ ±1.5 mV; Max ±5.0 mV (Vcc=5V, VCM=0→Vcc-1.5). Input bias/offset currents: Iio typ ±2.3 nA; Ibias typ ~57 nA. Input common-mode range: 0 to Vcc − 1.5 V. Large-signal voltage gain: 50–200 V/mV (Vcc=15V, RL>15kΩ). Large-signal response time: Typ 350 ns (fast test); other conditions up to ~1400 ns. Output sink current (Isink): Typical 6 mA; can reach 18 mA under conditions. Output saturation voltage (Vsat): Typ 140 mV; Max ~400 mV (Isink=4 mA). Output type: Open-collector, TTL/CMOS compatible. Package options: DIP-14, SOP-14, TSSOP-14. Applications: Threshold detection (single-sided). Window comparator circuits. Zero-cross detection. Power/supply monitoring and supervision. Pulse shaping and waveform conditioning. Level translation and logic interfacing. Package Contents: 1x UTC339 Quad Differential Comparator IC UTC339 Datasheet

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