Diodes Incorporated AP393SL-13

Overview

AP393SL-13 from Diodes Incorporated is a dual precision voltage comparator IC with ±3 mV max input offset voltage, 0.4 mA supply current, and rail-to-rail input common-mode range including ground-designed for single-supply operation from 2.0 V to 36 V. It interfaces directly with TTL, CMOS, ECL, DTL, and MOS logic and supports applications such as zero-crossing detection, time-delay generators, and battery-powered limit comparators.

For engineers reviewing the AP393SL-13 datasheet, AP393SL-13 pinout, AP393SL-13 application, or AP393SL-13 equivalent, key selection considerations include its ground-sensing capability on single supply, low power consumption, output compatibility across logic families, and SOP-8L lead-free packaging suitable for space-constrained industrial and portable designs.

Technical Context

The AP393 employs a PNP-input stage enabling input common-mode voltage down to ground under single-supply operation, with differential input voltage tolerance up to ±36 V independent of V+. Its uncommitted NPN open-collector outputs support wired-OR configurations and flexible pull-up voltage selection within the full 2.0–36 V supply range.

Supply current remains stable at 0.4 mA (typ) across 5 V to 36 V operation due to bias network design, and large-signal response time is 300 ns (min) with 100 mV step and 5 mV overdrive. Input bias current is 25 nA (typ), and input offset current is ±5 nA (max), supporting high-impedance sensing without significant error contribution.

Key Specifications

Pinout & Package

SOP-8L package: 4.9 mm × 3.9 mm body, 1.27 mm pitch, gull-wing leads, RoHS-compliant lead-free finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual open-collector comparator applications.

Compared with LM393DR and TLV3702IDR, the AP393SL-13 uniquely balances precision (±3 mV), ultra-low power (0.4 mA), wide supply (2–36 V), and true open-collector flexibility-making it optimal for industrial sensing and mixed-voltage interface tasks where ground-referenced accuracy and wiring simplicity are essential.

Availability

AP393SL-13 is available at Aetrix Electronics and suitable for industrial automation, battery-powered instrumentation, and mixed-voltage interface design requiring stable component supply, RoHS compliance, and long-term manufacturability.

Supply support for AP393SL-13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for industrial, computing, and consumer markets.

The AP393 belongs to Diodes' precision comparator product line, engineered for single-supply operation in cost-sensitive yet performance-demanding applications such as power management, sensor conditioning, and logic interfacing.

FAQ

Is AP393SL-13 pin-compatible with LM393?

Yes, AP393SL-13 uses the same SOP-8 pinout as LM393: pins 1–4 and 5–8 map identically to OUTPUT1, IN−1, IN+1, GND, IN+2, IN−2, OUTPUT2, and V+. However, AP393 offers lower offset voltage (±3 mV vs. ±7 mV) and lower supply current (0.4 mA vs. 0.8 mA), making it a functional upgrade in precision and power-sensitive designs.

Can AP393SL-13 operate from a 3.3 V supply?

Yes, AP393SL-13 is fully specified from 2.0 V to 36 V single supply. At 3.3 V, it maintains 25 nA typical input bias current, ±3 mV max offset voltage, and 250 mV output saturation voltage at 4 mA sink-enabling reliable interfacing with 3.3 V logic while preserving ground-sensing capability.

Does AP393SL-13 require input hysteresis?

Hysteresis is recommended for noisy input environments but not mandatory. The AP393's high gain and fast response make it susceptible to oscillation during transitions if stray capacitance couples output to input. Adding 1–10 mV of positive feedback (e.g., 10 MΩ from output to non-inverting input) eliminates chatter without degrading threshold accuracy.

What is the maximum output sink current for AP393SL-13?

The AP393SL-13 output transistor can sink up to 16 mA continuously while maintaining saturation. Beyond this, the output voltage rises rapidly due to reduced β; at 4 mA load, saturation voltage is guaranteed ≤400 mV (max) and typically 250 mV-ensuring robust TTL/CMOS low-level drive across temperature.