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Diodes Incorporated AP331AWG-7
- Part No.:
- AP331AWG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP331AWG-7.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:101,972
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Product details
Overview
AP331AWG-7 from Diodes Incorporated is a single high-precision differential voltage comparator in SOT25 package, operating from 2.0V to 36V single supply (±1.0V to ±18V dual), with ±4mV input offset voltage, 0.4mA supply current, and rail-to-rail input common-mode range including ground - used in limit detection, analog-to-digital conversion, and TTL/CMOS-compatible logic interfacing.
For engineers reviewing the AP331AWG-7 datasheet, AP331AWG-7 pinout, AP331AWG-7 application, or AP331AWG-7 equivalent, this page delivers verified electrical parameters, validated SOT25 pin mapping, real-world timing behavior (300ns response at 100mV step), output sink capability (6–16mA), and grounded-emitter NPN open-collector interface design implications.
Technical Context
The AP331AWG-7 employs a PNP-input stage enabling input common-mode voltage down to ground on single supply, with differential input voltage tolerance up to ±36V independent of VCC. Its uncommitted NPN output transistor supports wired-OR configurations and flexible pull-up voltages across the full 2.0–36V range.
Supply current remains stable at 0.4mA typ. from 5V to 36V, and input bias current is 150nA typ. with ±70nA offset current - enabling high-impedance sensing without loading reference sources. The device exhibits no internal hysteresis and requires external positive feedback for noise immunity in slow-edge applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0V to 36V single supply; ±1.0V to ±18V dual - supports battery-powered and industrial rails without level-shifting. |
| Input Offset Voltage | ±4mV max at 25°C - enables accurate threshold detection within 4mV error at room temperature. |
| Supply Current | 0.4mA typ. independent of VCC - ensures stable low-power operation across full voltage range. |
| Input Bias Current | 150nA typ. - permits use with high-value resistive dividers (>100kΩ) without significant error. |
| Output Saturation Voltage | 250mV at 4mA sink - guarantees TTL-compatible low-state output when driving standard logic loads. |
| Response Time | 300ns at 100mV input step with 5mV overdrive - suitable for sub-microsecond edge detection in pulse generators. |
| Common-Mode Input Range | Includes ground (0V) on single supply - allows direct sensing of signals referenced to system ground. |
Pinout & Package
SOT25 surface-mount package (3.0mm × 1.6mm × 1.1mm), RoHS-compliant, green molding compound, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting input | Accepts reference or feedback signal; differential input voltage may exceed VCC by up to 36V. |
| 2 (GND) | Ground reference | Return path for supply and inputs; required for single-supply operation with ground-referenced signals. |
| 3 (IN+) | Non-inverting input | Accepts sensed signal; common-mode range extends from GND to VCC −1.5V at 25°C. |
| 4 (Output) | Open-collector NPN emitter | Uncommitted collector - requires external pull-up; supports wired-OR, logic-level translation, and SPST switching to ground. |
| 5 (Vcc) | Positive supply | Accepts 2.0–36V DC; supply current independent of voltage magnitude; no bypass capacitor required. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply ground-sensing capability | Input common-mode range includes 0V - eliminates need for negative rail in level-shifted sensor interfaces. |
| Logic-family compatibility | Output sinks 6–16mA with 250mV saturation - directly drives TTL, CMOS, ECL, DTL, and MOS without buffer stages. |
| Wide supply voltage independence | 0.4mA supply current stable from 5V to 36V - simplifies power budgeting in multi-rail systems. |
| High differential input voltage tolerance | ±36V differential input rating - enables direct comparison of signals beyond supply rails (e.g., battery monitoring). |
| Low input offset drift | Offset voltage specified ≤8mV over full temp range - improves accuracy in temperature-varying environments. |
Applications
| Limit Comparator | Analog-to-Digital Converter |
|---|---|
|
Use Scenario: Monitoring battery voltage against fixed thresholds to trigger under-voltage lockout or over-voltage protection. IC Role / Device Role / Timing Role: Single comparator comparing sensed battery voltage to precision reference; output drives latch or microcontroller interrupt. Use Value: ±4mV offset enables detection of <10mV changes in 12V battery systems; rail-to-ground input allows direct connection to battery negative terminal. |
Use Scenario: Building a 3-bit flash ADC using eight parallel comparators and resistor ladder reference network. IC Role / Device Role / Timing Role: High-speed voltage comparison node with 300ns propagation delay ensuring synchronous digitization of analog waveforms. Use Value: 0.4mA supply current per unit enables compact 8-channel ADC with <3.2mA total quiescent draw; open-collector outputs simplify NAND decoding logic. |
| Pulse Generator | Digital Logic Gate |
|
Use Scenario: Converting sine-wave oscillator output into clean square wave for clock distribution in mixed-signal PCBs. IC Role / Device Role / Timing Role: Zero-crossing detector with hysteresis; output toggles on input crossing mid-rail reference. Use Value: 300ns response time supports >1MHz waveform conversion; input common-mode range including ground allows direct AC coupling via series capacitor. |
Use Scenario: Implementing multi-input AND/OR gates using open-collector outputs tied to shared pull-up resistor. IC Role / Device Role / Timing Role: Wired-logic gate building block; each AP331AWG-7 acts as inverter or level translator in combinatorial logic array. Use Value: Output saturation voltage ≤250mV ensures reliable '0' state for 5V TTL fan-in; independent VCC allows interfacing between 3.3V logic and 12V control circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single high-precision comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM311DR | Higher input offset (7mV typ.), 1.6mA supply current, wider SOIC-8 package | Requires dual supply for ground-referenced inputs; less suitable for battery-constrained designs | Select when higher output drive (50mA sink) or internal compensation is needed; avoid for ultra-low-power or space-constrained layouts. |
| TLV3011DBVR | Lower supply current (17μA), rail-to-rail output, but narrower 2.7–16V supply range | Cannot operate below 2.7V or above 16V; lacks ±36V differential input tolerance | Prefer for sub-3V systems or where output swing to VCC is mandatory; not viable for 24V industrial sensing or automotive battery monitoring. |
Compared with LM311DR and TLV3011DBVR, the AP331AWG-7 uniquely balances wide supply range (2–36V), ground-sensing capability, low quiescent current (0.4mA), and robust ±36V differential input - making it optimal for universal comparator roles in industrial power supplies, battery management, and legacy logic interfacing where voltage flexibility and reliability outweigh ultra-low-power requirements.
Availability
AP331AWG-7 is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial voltage monitoring, and TTL/CMOS logic interfacing requiring stable component supply across extended temperature and voltage ranges.
Supply support for AP331AWG-7 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, cost-optimized components for power management, signal integrity, and protection applications.
The AP331A belongs to Diodes' precision comparator product line, engineered for single-supply operation with ground-referenced inputs, targeting applications where dual supplies are impractical - such as portable equipment, automotive subsystems, and industrial control sensors.
FAQ
Can AP331AWG-7 operate from a 3.3V supply?
Yes - the AP331AWG-7 functions reliably from 2.0V to 36V single supply. At 3.3V, its 0.4mA supply current and ±4mV offset remain valid, and output saturation voltage stays ≤250mV at 4mA load, ensuring compatibility with 3.3V logic families when paired with appropriate pull-up voltage.
Does AP331AWG-7 require a bypass capacitor on VCC?
No - the AP331AWG-7's internal bias network draws stable 0.4mA current independent of supply voltage, eliminating need for VCC bypassing. Layout best practice still recommends short, low-inductance traces to minimize noise coupling, especially in high-speed transitions.
What is the maximum sink current before output saturation degrades?
The AP331AWG-7 output saturates at ≤250mV up to 4mA. Beyond that, saturation voltage rises linearly: at 6mA it is ~350mV, and maximum rated sink is 16mA (per Absolute Maximum Ratings). For TTL compatibility, keep load ≤4mA; for higher currents, verify VOH/VOL margins in target logic family.
Can multiple AP331AWG-7 outputs be wired together?
Yes - the open-collector NPN output supports wired-OR configuration. Tie all collectors together with a single pull-up resistor to any voltage ≤36V. Ensure total sink current does not exceed 16mA per device, and confirm logic thresholds match combined fan-out requirements.
AP331AWG-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- CMOS, DTL, ECL, MOS, Open-Collector, TTL
- Voltage - Supply, Single/Dual (±):
- 2V ~ 36V, ±1V ~ 18V
- :
- 8mV @ 5V
- Voltage - Input Offset (Max):
- 0.4µA @ 5V
- Current - Input Bias (Max):
- 16mA @ 5V
- Current - Output (Typ):
- 2.5mA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-25
AP331AWG-7 FAQ
1.How can I place an order for AP331AWG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP331AWG-7 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 AP331AWG-7 reliable?
The price and inventory of AP331AWG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP331AWG-7 is usually 5 days.
3.What payment methods are accepted for AP331AWG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP331AWG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP331AWG-7?
AP331AWG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP331AWG-7 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 AP331AWG-7?
For technical support, including AP331AWG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP331AWG-7 requirements.
6.How does Aetrix verify that AP331AWG-7 is sourced from the original manufacturer or authorized distributors?
All AP331AWG-7 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 AP331AWG-7 meets industry standards.
7.What is the process for return or replacement of AP331AWG-7?
All AP331AWG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP331AWG-7, 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 AP331AWG-7 part is unused and in its original packaging.
Return procedure for AP331AWG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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