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Diodes Incorporated AP393NL-U
- Part No.:
- AP393NL-U
- Manufacturer:
- Diodes Incorporated
- Category:
- Comparators
- Package:
- -
- Datasheet:
-
AP393NL-U.pdf
- Description:
- IC COMPARATOR DUAL LP 8-DIP
- Quantity:
- Payment:
- Shipping:
Inventory:429
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Product details
Overview
AP393NL-U from Diodes Incorporated is a dual precision voltage comparator IC featuring ±3 mV maximum input offset voltage, 0.4 mA supply current at 5 V, and rail-to-rail input common-mode range including ground-enabling single-supply operation down to 2.0 V. It drives TTL/CMOS/MOS logic directly and supports split-supply configurations (±1.0 V to ±18 V), making it suitable for battery-powered limit detection and analog-to-digital interface circuits.
For engineers reviewing the AP393NL-U datasheet, AP393NL-U pinout, AP393NL-U application, or AP393NL-U equivalent, key selection considerations include its ground-sensing capability on single supply, low power consumption independent of supply voltage, guaranteed offset voltage spec across temperature, and open-collector output compatibility with mixed-voltage logic systems.
Technical Context
The AP393 employs a PNP-input differential pair architecture enabling input common-mode voltage down to ground-even when powered from a single 2.0–36 V supply. Its uncommitted NPN open-collector outputs allow wired-OR functionality and flexible pull-up voltage selection up to 36 V, independent of V+.
Internal biasing delivers supply-current stability (0.4–1.0 mA typ.) across full voltage range; input offset voltage is trimmed to ≤3 mV max at 25°C and remains stable over 0–70°C operating junction temperature. Differential input voltage tolerance extends to ±36 V, exceeding supply rails without damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 36 V single supply; ±1.0 V to ±18 V dual supply - enables direct use in 3.3 V, 5 V, 12 V, and 24 V systems without level-shifting. |
| Input Offset Voltage | Max ±3 mV at 25°C - ensures accurate threshold detection in precision limit comparators and zero-crossing circuits. |
| Supply Current | 0.4 mA typical at 5 V - supports ultra-low-power operation in battery-backed sensors and portable instrumentation. |
| Input Bias Current | 25 nA typical - minimizes loading error on high-impedance reference or sensor inputs (e.g., thermistor dividers). |
| Output Saturation Voltage | 250 mV at 4 mA sink - guarantees reliable low-state logic recognition when driving TTL/CMOS with standard pull-ups. |
| Input Common-Mode Range | 0 V to (V+ − 1.5 V) - allows direct sensing of signals referenced to ground in single-supply systems. |
| Response Time | 300 ns typical (100 mV step, 5 mV overdrive) - supports kHz-range pulse generation and timing circuits. |
Pinout & Package
AP393NL-U is supplied in PDIP-8L (Plastic Dual In-line Package, 8-lead), RoHS-compliant, lead-free, green molding compound. Package dimensions conform to JEDEC MS-001.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTPUT 1 | Open-collector NPN output for Channel 1 - requires external pull-up; supports wired-OR and mixed-voltage interfacing. |
| 2 | INVERTING INPUT 1 | Inverting input terminal for Comparator 1 - accepts voltages from 0 V to (V+ − 1.5 V) with no phase inversion. |
| 3 | NON-INVERTING INPUT 1 | Non-inverting input terminal for Comparator 1 - identical common-mode range; used for positive-threshold detection. |
| 4 | GND | Analog ground reference - serves as return path for both comparators and internal bias network. |
| 5 | NON-INVERTING INPUT 2 | Non-inverting input for Comparator 2 - electrically isolated from Channel 1; enables dual independent comparisons. |
| 6 | INVERTING INPUT 2 | Inverting input for Comparator 2 - matches Channel 1 specs; supports differential or independent signal routing. |
| 7 | OUTPUT 2 | Open-collector NPN output for Channel 2 - independently controllable; shares no internal nodes with OUTPUT 1. |
| 8 | V+ | Positive supply pin - powers both comparators; supports single or dual supply configuration (V− = GND or negative rail). |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply ground-sensing input | Input common-mode range includes 0 V - eliminates need for negative rail in sensor interface and level-shifted monitoring. |
| Supply-current independence | 0.4 mA typical across 2.0–36 V - removes supply regulation requirement and simplifies power design in wide-input systems. |
| Logic-family interoperability | Output compatible with TTL, DTL, ECL, MOS, and CMOS - enables direct connection to legacy and modern digital subsystems. |
| High differential input voltage tolerance | ±36 V max - permits safe operation with inputs exceeding V+, e.g., in industrial transducer or motor feedback circuits. |
| Low input offset drift | ≤3 mV max at 25°C, specified over 0–70°C - ensures stable trip points in temperature-variable environments like automotive cabins. |
Applications
| Limit Detection in Industrial Sensors | Battery-Powered Threshold Monitoring |
|---|---|
|
Use Scenario: Detecting overtemperature or overpressure thresholds in HVAC controllers using resistive sensor bridges. IC Role / Device Role / Timing Role: Precision dual comparator performing simultaneous high/low limit checking against fixed reference voltages. Use Value: Ground-referenced inputs eliminate need for negative supply; low 0.4 mA quiescent current extends battery life in wireless sensor nodes. |
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging in portable medical devices. IC Role / Device Role / Timing Role: Dual-channel window comparator generating "OK", "OVER", and "UNDER" status flags via open-collector outputs. Use Value: ±3 mV offset ensures accurate 4.2 V/2.8 V trip points; single 3.3 V supply simplifies power architecture. |
| Zero-Crossing Detection (AC Mains) | Programmable Pulse Width Generation |
|
Use Scenario: Isolated AC line synchronization for TRIAC dimmers and SMPS soft-start control. IC Role / Device Role / Timing Role: Single-supply zero-crossing detector using resistor divider and hysteresis network on one comparator channel. Use Value: Input common-mode range including ground enables direct connection to grounded-neutral AC sensing; fast 300 ns response ensures sub-microsecond timing accuracy. |
Use Scenario: Generating adjustable-width pulses for LED brightness control or motor PWM gating. IC Role / Device Role / Timing Role: One-shot multivibrator built with AP393's two comparators, RC network, and internal hysteresis. Use Value: Matched offset and gain between channels ensure consistent timing across temperature; open-collector outputs simplify OR'ing multiple timing events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Higher max offset voltage (±5 mV), higher supply current (0.8 mA), no guaranteed ground-sensing on single supply. | Lacks guaranteed 0 V input common-mode - requires level-shifting for true ground-referenced inputs. | Choose LM393DR only if cost sensitivity outweighs precision and ground-sensing requirements. |
| TLV3702CDR | Rail-to-rail input/output, lower supply current (35 µA), but limited to 16 V max supply and CMOS-only output drive. | Not compatible with TTL or ECL loads; unsuitable for mixed-voltage industrial backplanes. | Select TLV3702CDR for ultra-low-power, rail-to-rail signal chains where logic compatibility is not required. |
Compared with LM393DR and TLV3702CDR, AP393NL-U uniquely combines guaranteed ground-sensing, TTL/CMOS/ECL interoperability, and 36 V supply tolerance - making it the only option among the three for robust, single-supply industrial threshold detection with legacy logic interfacing.
Availability
AP393NL-U is available at Aetrix Electronics and suitable for industrial sensor interfaces, battery-powered instrumentation, AC line synchronization circuits, and programmable timing modules requiring stable component supply and long-term manufacturability.
Supply support for AP393NL-U 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, industry-qualified components for automotive, industrial, and consumer markets.
The AP393 belongs to Diodes' precision analog comparator product line, engineered for applications demanding low offset, single-supply operability, and robust logic interfacing - particularly where legacy system compatibility and wide supply flexibility are critical.
FAQ
Can AP393NL-U operate from a 3.3 V single supply?
Yes. The AP393NL-U is fully specified from 2.0 V to 36 V single supply. At 3.3 V, it maintains 0.4 mA typical supply current, ±3 mV max offset voltage, and retains ground-sensing input capability - enabling direct use with 3.3 V microcontrollers and sensors without level translation.
What is the maximum sink current per output?
Each output can sink up to 16 mA while maintaining saturation voltage below 700 mV (per datasheet, V+ = 30 V). At 4 mA load, saturation voltage is guaranteed ≤250 mV - sufficient to drive standard TTL inputs and 4.7 kΩ pull-ups to 5 V or 3.3 V logic rails.
Does AP393NL-U require power supply decoupling capacitors?
No. The AP393's internal bias network is supply-voltage-independent and inherently stable. Diodes Incorporated explicitly states bypass capacitors are unnecessary for normal operation - though 0.1 µF ceramic caps are recommended if board layout introduces >100 pF output-to-input coupling.
How should unused comparator channels be terminated?
Unused inputs must be tied to GND (Pin 4) to prevent floating nodes that cause erratic output switching. The corresponding output (e.g., OUTPUT 2 if Channel 2 is unused) should be left open or pulled up externally - no internal termination is provided, and sinking current into an unused output is not recommended.
AP393NL-U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- -
- Series:
- *
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- -
- Number of Elements:
- -
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
- -
- :
- -
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- -
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- :
- -
AP393NL-U FAQ
1.How can I place an order for AP393NL-U through Aetrix?
Please submit a Request for Quotation (RFQ) for AP393NL-U on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AP393NL-U reliable?
The price and inventory of AP393NL-U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP393NL-U is usually 5 days.
3.What payment methods are accepted for AP393NL-U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP393NL-U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP393NL-U?
AP393NL-U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP393NL-U order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AP393NL-U?
For technical support, including AP393NL-U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP393NL-U requirements.
6.How does Aetrix verify that AP393NL-U is sourced from the original manufacturer or authorized distributors?
All AP393NL-U products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AP393NL-U meets industry standards.
7.What is the process for return or replacement of AP393NL-U?
All AP393NL-U units undergo pre-shipment inspection (PSI). If there is an issue with AP393NL-U, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AP393NL-U part is unused and in its original packaging.
Return procedure for AP393NL-U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP393NL-U Tags
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LM339DR
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LM393DT
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LM2901PWR
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LM2903DT
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LM393DR
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LM239DR
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LM339APWR
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LM2903P
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LM393ADR
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NCX2200GMAZ
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