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Analog Devices Inc. ADM810ZART-REEL7
- Part No.:
- ADM810ZART-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM810ZART-REEL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:33,000
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Product details
Overview
ADM810ZART-REEL7 from Analog Devices is a microprocessor supervisory circuit with active-high push-pull RESET output, 2.32 V reset threshold, and operation down to 1.0 V VCC. It provides 240 ms (typical) power-on reset timeout, consumes 17 μA supply current, and is qualified for −40°C to +125°C industrial temperature range. It monitors 2.5 V supply rails in embedded controllers and intelligent instruments.
For engineers reviewing the ADM810ZART-REEL7 datasheet, ADM810ZART-REEL7 pinout, ADM810ZART-REEL7 application, or ADM810ZART-REEL7 equivalent, key selection criteria include reset polarity (active-high), SOT-23-3 package compatibility, guaranteed operation at 1 V VCC, ±3% threshold accuracy over temperature, and push-pull drive capability without external pull-up.
Technical Context
The ADM810ZART-REEL7 implements a precision voltage comparator with internal bandgap reference to detect VCC falling below 2.32 V (±3% over −40°C to +125°C). Its reset generator asserts RESET high for ≥140 ms after VCC rises above threshold, with typical timeout of 240 ms and built-in glitch immunity against transients up to 100 mV overdrive.
It features push-pull output stage capable of sourcing 150 μA at 1.8 V < VCC < VTH(min) and sinking 1.2 mA at VTH(min), enabling direct interface to CMOS inputs without external components. The device operates continuously from VCC = 1.0 V, maintaining valid logic levels until supply collapse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32 V (typical), ±3% over −40°C to +125°C - ensures reliable detection of 2.5 V rail undervoltage before system malfunction. |
| Reset Timeout | 240 ms (typical), 140–460 ms (min/max) - holds microprocessor in reset long enough for power stabilization and clock lock. |
| Supply Current | 17 μA (typical at VCC < 3.6 V, −40°C to +85°C) - enables use in battery-powered portable instrumentation. |
| VCC Operating Range | 1.0 V to 5.5 V - supports brownout detection down to near-zero supply, critical for graceful shutdown sequencing. |
| Output Type | Active-high push-pull - eliminates need for external pull-up resistor and ensures defined logic level at all VCC ≥ 1.0 V. |
| Temperature Range | −40°C to +125°C - qualified for under-hood automotive, industrial PLC, and high-reliability embedded applications. |
| Package | 3-Lead SOT-23 (RT-3) - surface-mount footprint compatible with automated assembly and space-constrained PCB layouts. |
Pinout & Package
ADM810ZART-REEL7 is housed in a 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB, with 1.30 mm × 2.90 mm body size, 0.95 mm height, and coplanarity ≤ 0.10 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground Reference | 0 V return path for internal comparator and output driver; must be connected directly to system ground plane. |
| 2 (RESET) | Active-High Push-Pull Output | Drives high when VCC ≥ 2.32 V (after timeout); drives low when VCC < 2.32 V - interfaces directly to µP /CPLD reset input. |
| 3 (VCC) | Supply Voltage Input | Monitored rail input; device functions fully from 1.0 V to 5.5 V - enables supervision of 2.5 V, 3.0 V, or 3.3 V systems. |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.32 V threshold | ±3% tolerance over full −40°C to +125°C range - eliminates need for external trimming in 2.5 V rail monitoring. |
| 1 V minimum operating voltage | Valid RESET assertion and deassertion down to VCC = 1.0 V - ensures deterministic behavior during deep brownout. |
| Glitch-immune comparator | Immune to transients ≤ 100 mV overdrive for ≤ 400 μs - prevents false resets from switching noise or ESD coupling. |
| Low 17 μA quiescent current | Enables >10-year battery life in always-on sensor nodes using coin-cell or Li-SOCl₂ batteries. |
| Push-pull active-high output | No external pull-up required; drives CMOS inputs directly across full VCC range - simplifies BOM and layout. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
|
Use Scenario: Monitors 2.5 V microcontroller supply in programmable logic controller operating in harsh factory environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-high RESET to hold ARM Cortex-M4 in reset until 2.5 V rail stabilizes post-power-up and during line sags. Use Value: Guarantees 240 ms minimum reset pulse at −40°C to +125°C, preventing firmware corruption during cold-start or voltage dip events. |
Use Scenario: Supervises 2.5 V domain powering CAN transceiver and microcontroller in vehicle door module exposed to under-hood thermal cycling. IC Role / Device Role / Timing Role: Active-high RESET generator triggered by 2.32 V threshold violation, interfacing directly to MCU's nRST pin without pull-up. Use Value: Operates down to 1.0 V VCC, ensuring controlled reset assertion even during battery cranking (≤ 6 V) or alternator load dump recovery. |
| Medical Patient Monitor | Smart Energy Meter |
|
Use Scenario: Ensures reliable boot sequence for low-power ARM-based patient monitor powered from regulated 2.5 V supply with backup supercapacitor. IC Role / Device Role / Timing Role: Precision voltage monitor with 2.32 V threshold and 17 μA supply current, providing reset signal to main processor on power restoration. Use Value: Low quiescent current extends supercapacitor hold-up time; ±3% threshold accuracy avoids spurious resets during analog front-end bias drift. |
Use Scenario: Supervises 2.5 V rail feeding metrology ADC and real-time clock in DIN-rail mounted electricity meter with extended temperature qualification. IC Role / Device Role / Timing Role: Microprocessor supervisory IC asserting active-high RESET to MSP430F6779 during AC mains interruption or brownout. Use Value: Valid operation at 1.0 V VCC enables clean reset assertion during capacitor discharge phase, preserving meter calibration data integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T-T | 2.32 V threshold, active-low open-drain output, 1.2 μA max supply current, SOT-23-3 package | Requires external pull-up resistor; incompatible with active-high reset input without inverter | Select only if system design accommodates active-low reset and board space allows pull-up placement. |
| TPS3808G12QDBVRQ1 | 1.2 V threshold (not 2.32 V), adjustable via external resistor, 1.8 μA supply current, automotive-grade (AEC-Q100) | Not a drop-in replacement: different threshold, requires external component, higher cost | Choose only when adjustable threshold and AEC-Q100 qualification are mandatory; not suitable for fixed 2.32 V monitoring. |
Compared with MAX809TRD2T-T and TPS3808G12QDBVRQ1, ADM810ZART-REEL7 delivers exact 2.32 V detection with active-high push-pull output in a pin-compatible SOT-23-3 footprint-enabling direct replacement in existing 2.5 V rail supervision designs without layout or firmware changes.
Availability
ADM810ZART-REEL7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADM810ZART-REEL7 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
Analog Devices, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
ADM810ZART-REEL7 belongs to the ADM803/ADM809/ADM810 family of microprocessor supervisory circuits, designed specifically for reliable power-on reset generation and brownout protection in space-constrained, thermally demanding embedded systems.
FAQ
What is the exact reset threshold voltage of ADM810ZART-REEL7 and how does it vary with temperature?
The ADM810ZART-REEL7 has a nominal reset threshold of 2.32 V at 25°C, with guaranteed range of 2.25 V to 2.38 V over −40°C to +85°C and 2.22 V to 2.42 V over −40°C to +125°C. This ±3% tolerance ensures consistent 2.5 V rail supervision across industrial temperature extremes without external calibration.
Does ADM810ZART-REEL7 require an external pull-up resistor on the RESET pin?
No, ADM810ZART-REEL7 features a push-pull output stage that actively drives both high and low states. Unlike open-drain variants such as ADM803, the ADM810ZART-REEL7 asserts active-high RESET without any external components, simplifying design and reducing BOM count.
What is the minimum supply voltage at which ADM810ZART-REEL7 remains functional?
ADM810ZART-REEL7 operates reliably down to VCC = 1.0 V, maintaining valid RESET assertion and deassertion behavior. This enables robust brownout detection and controlled reset sequencing even during severe supply droop or capacitor discharge phases in battery-backed systems.
How long is the reset timeout period for ADM810ZART-REEL7 and is it adjustable?
The ADM810ZART-REEL7 provides a fixed 240 ms typical reset timeout after VCC rises above threshold, with guaranteed minimum of 140 ms and maximum of 460 ms over −40°C to +85°C. This timing is internally generated and not user-adjustable, ensuring consistent power-up behavior across units and temperatures.
Is ADM810ZART-REEL7 RoHS compliant and what packaging format is supplied?
Yes, ADM810ZART-REEL7 is RoHS compliant (denoted by "Z" suffix) and supplied in tape-and-reel format (REEL7 = 3,000-piece reel) in the 3-lead SOT-23 (RT-3) package, meeting JEDEC TO-236-AB mechanical standards for automated surface-mount assembly.
ADM810ZART-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.32V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ADM810ZART-REEL7 FAQ
1.How can I place an order for ADM810ZART-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM810ZART-REEL7 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 ADM810ZART-REEL7 reliable?
The price and inventory of ADM810ZART-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM810ZART-REEL7 is usually 5 days.
3.What payment methods are accepted for ADM810ZART-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM810ZART-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM810ZART-REEL7?
ADM810ZART-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM810ZART-REEL7 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 ADM810ZART-REEL7?
For technical support, including ADM810ZART-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM810ZART-REEL7 requirements.
6.How does Aetrix verify that ADM810ZART-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADM810ZART-REEL7 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 ADM810ZART-REEL7 meets industry standards.
7.What is the process for return or replacement of ADM810ZART-REEL7?
All ADM810ZART-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM810ZART-REEL7, 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 ADM810ZART-REEL7 part is unused and in its original packaging.
Return procedure for ADM810ZART-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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