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Diodes Incorporated AP331AWRG-7
- Part No.:
- AP331AWRG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP331AWRG-7.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT25R
- Quantity:
- Payment:
- Shipping:
Inventory:123,487
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Product details
Overview
AP331AWRG-7 from Diodes Incorporated is a single high-precision differential voltage comparator in SOT25R package, operating from 2.0V to 36V single supply (±1.0V to ±18V dual), with ±4mV input offset voltage, 150nA input bias current, and 250mV output saturation voltage at 4mA - used in limit detection, analog-to-digital conversion, and TTL/CMOS-compatible logic interfacing.
For engineers reviewing the AP331AWRG-7 datasheet, AP331AWRG-7 pinout, AP331AWRG-7 application, or AP331AWRG-7 equivalent, this page delivers verified electrical parameters, validated SOT25R terminal mapping, real-world timing and interface behavior, and confirmed drop-in alternatives for industrial sensing, power monitoring, and mixed-signal timing circuits.
Technical Context
The AP331AWRG-7 implements a PNP-input stage enabling input common-mode voltage range down to ground on single supply, with differential input voltage tolerance up to ±36V. Its uncommitted NPN open-collector output supports wired-OR configurations and pull-up to any compatible rail within the device's supply range.
Supply current remains stable at 0.4mA across 2.0–36V operation, independent of VCC; input offset drift is minimized via precision trimming, and large-signal response time is 300ns (100mV step, 5mV overdrive) - optimized for fast threshold detection without external hysteresis in pulse applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0V to 36V single supply; ±1.0V to ±18V dual - enables direct battery or industrial rail interfacing without level-shifting |
| Input Offset Voltage | ±4mV max at 25°C - ensures accurate threshold detection below 5mV error in precision limit comparators |
| Input Bias Current | 150nA typical - minimizes loading on high-impedance sensor sources like thermistors or photodiodes |
| Output Saturation Voltage | 250mV at 4mA sink - guarantees reliable low-state logic recognition with TTL/CMOS inputs |
| Response Time | 300ns for 100mV step - supports >3MHz pulse discrimination in timing and waveform generation |
| Input Common-Mode Range | Includes ground on single supply - allows direct sensing of 0V-referenced signals without negative rail |
| Output Type | Open-collector NPN - permits wired-OR logic, flexible pull-up voltage selection, and SPST switching to ground |
Pinout & Package
SOT25R is a 5-pin, surface-mount, RoHS-compliant plastic package with gull-wing leads and "Green" molding compound (no Br/Sb). Pin spacing is 0.95mm, body dimensions are 2.9mm × 1.6mm × 1.1mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SOT25R) | IN+ | Non-inverting input - accepts reference or signal source; common-mode range includes ground |
| 2 | GND | Ground reference - serves as return path for supply and input bias currents |
| 3 (SOT25R) | IN− | Inverting input - used for feedback or threshold comparison; differential voltage range equals supply rails |
| 4 | Output | Open-collector NPN emitter - sinks current only; requires external pull-up for logic-high state |
| 5 | VCC | Positive supply - powers internal bias network; supply current independent of voltage magnitude |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply ground-sensing capability | Input common-mode range extends to 0V - eliminates need for dual supplies in 0–5V sensor interfaces |
| Low and supply-independent quiescent current | 0.4mA at 5V and 36V - enables long-life battery operation and thermal stability across wide input rails |
| Logic-family interoperability | Output compatible with TTL, DTL, ECL, MOS, and CMOS - simplifies integration into mixed-technology systems |
| Robust input voltage tolerance | Differential input withstands ±36V - protects against transient overvoltage without external clamping |
| Thermal performance | θJA = 173°C/W (SOT25R) - supports continuous operation up to +70°C ambient without derating at ≤740mW dissipation |
Applications
| Limit Comparator | Analog-to-Digital Converter (ADC) Front-End |
|---|---|
Use Scenario: Monitoring battery voltage against under-voltage lockout (UVLO) threshold in portable equipment. IC Role / Device Role / Timing Role: Single comparator comparing sensed battery voltage to fixed reference; triggers shutdown when VBAT < VREF. Use Value: ±4mV offset ensures UVLO accuracy within ±5mV, and ground-sensing enables direct connection to battery negative terminal. | Use Scenario: Converting analog sensor outputs (e.g., temperature, pressure) into 1-bit digital streams for sigma-delta modulation. IC Role / Device Role / Timing Role: High-speed comparator acting as quantizer in first-order modulator loop. Use Value: 300ns response time supports >3MHz sampling rates; low input bias avoids sensor loading errors. |
| Pulse Generator / Multivibrator | High-Voltage Logic Gate Interface |
Use Scenario: Building monostable or astable multivibrators using RC timing networks and internal hysteresis. IC Role / Device Role / Timing Role: Comparator with external positive feedback generating precise pulse widths or square waves. Use Value: Open-collector output allows direct connection to RC network; 250mV saturation ensures clean low-state transitions. | Use Scenario: Interfacing 3.3V microcontroller GPIO to 12V/24V industrial control lines. IC Role / Device Role / Timing Role: Level-shifting comparator translating logic thresholds between incompatible voltage domains. Use Value: Input common-mode range includes ground and tolerates 36V differential - accepts 12V signals while powered from 3.3V rail. |
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), higher supply current (5.7mA), wider temp range (−40°C to +85°C) | Preferred in extended-temperature industrial environments where precision is secondary to ruggedness | Select LM311DR when operating beyond +70°C or requiring higher output drive (50mA sink) |
| TLV3011DBVR | Lower supply current (17μA), rail-to-rail input, but narrower supply range (1.8V–5.5V) and no ground-sensing on single supply | Optimized for ultra-low-power battery sensors, not suitable for >5.5V or ground-referenced analog inputs | Choose TLV3011DBVR only for sub-5.5V, energy-constrained designs where ground-sensing is unnecessary |
Compared with LM311DR and TLV3011DBVR, the AP331AWRG-7 uniquely balances low offset (±4mV), ground-sensing capability, and wide 2–36V operation - making it optimal for cost-sensitive industrial power monitors and mixed-voltage logic interfaces where precision and supply flexibility are critical.
Availability
AP331AWRG-7 is available at Aetrix Electronics and suitable for industrial power supervision, battery management systems, and mixed-signal timing circuits requiring stable component supply and long-term manufacturability.
Supply support for AP331AWRG-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 industrial, computing, and consumer markets.
The AP331A product line delivers precision comparators engineered for single-supply operation with ground-referenced inputs - targeting applications in power sequencing, sensor signal conditioning, and legacy logic interfacing where simplicity and robustness are prioritized.
FAQ
What is the maximum differential input voltage the AP331AWRG-7 can withstand?
The AP331AWRG-7 supports a differential input voltage of up to ±36V, independent of supply voltage magnitude. This rating is absolute - exceeding it risks permanent damage. Input voltages must remain ≥ −0.3V relative to ground (or negative rail) to avoid forward-biasing internal protection diodes and triggering parasitic latch-up.
Can the AP331AWRG-7 operate with only a 2.0V supply?
Yes - the AP331AWRG-7 is fully specified down to 2.0V single supply, maintaining 0.4mA supply current and functional output saturation. However, output logic compatibility is reduced: TTL recognition requires ≥2.0V pull-up, and CMOS thresholds may require careful resistor selection due to limited VOH swing at low VCC.
Is an external pull-up resistor required on the output?
Yes - the AP331AWRG-7 features an open-collector NPN output that can only sink current. A pull-up resistor is mandatory to establish a defined logic-high state. The resistor value must balance speed (lower R) and power (higher R); typical values range from 1kΩ (for 5V TTL) to 10kΩ (for 3.3V CMOS), with voltage limited to the device's 36V absolute max.
Does the AP331AWRG-7 support dual-supply operation?
Yes - the AP331AWRG-7 operates with split supplies from ±1.0V to ±18V. In dual-supply mode, the input common-mode range extends from −1.5V to V+ − 1.5V, and the output can swing rail-to-rail. Ground remains the reference for GND pin; VCC connects to V+, and the negative rail connects externally - no dedicated VEE pin is provided.
AP331AWRG-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
- :
- SOT25R
AP331AWRG-7 FAQ
1.How can I place an order for AP331AWRG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP331AWRG-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 AP331AWRG-7 reliable?
The price and inventory of AP331AWRG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP331AWRG-7 is usually 5 days.
3.What payment methods are accepted for AP331AWRG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP331AWRG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP331AWRG-7?
AP331AWRG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP331AWRG-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 AP331AWRG-7?
For technical support, including AP331AWRG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP331AWRG-7 requirements.
6.How does Aetrix verify that AP331AWRG-7 is sourced from the original manufacturer or authorized distributors?
All AP331AWRG-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 AP331AWRG-7 meets industry standards.
7.What is the process for return or replacement of AP331AWRG-7?
All AP331AWRG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP331AWRG-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 AP331AWRG-7 part is unused and in its original packaging.
Return procedure for AP331AWRG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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