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Analog Devices Inc. ADM810LARTZ-REEL
- Part No.:
- ADM810LARTZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM810LARTZ-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,784
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Product details
Overview
ADM810LARTZ-REEL from Analog Devices is a microprocessor supervisory circuit with push-pull active-high RESET output, 4.63 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/automotive applications in SOT-23-3 package.
For engineers reviewing the ADM810LARTZ-REEL datasheet, ADM810LARTZ-REEL pinout, ADM810LARTZ-REEL application, or ADM810LARTZ-REEL equivalent, key selection criteria include reset polarity (active-high), voltage threshold tolerance (±4.75% over −40°C to +85°C), minimum VCC operation (1.0 V), thermal stability (30 ppm/°C), and compatibility with 3 V/5 V microprocessor reset inputs.
Technical Context
The ADM810LARTZ-REEL integrates a precision bandgap voltage reference and comparator with built-in glitch immunity to reject fast transients on VCC. Its internal timer ensures deterministic 240 ms (typical) reset assertion after VCC rises above the 4.63 V threshold.
This device uses a push-pull output stage capable of sourcing 150 μA at 1.8 V < VCC < VTH(min) and sinking 1.2 mA at VCC = VTH(min), eliminating need for external pull-up resistors unlike open-drain variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63 V (typical), ±4.75% over −40°C to +85°C - ensures reliable reset assertion before microprocessor brownout. |
| Reset Polarity | Active-high - directly interfaces with microprocessors requiring high-true reset input without inversion logic. |
| Reset Timeout | 240 ms (typical) power-up delay - holds processor in reset until power rail stabilizes and clocks lock. |
| Supply Current | 17 μA (typical at VCC < 3.6 V, −40°C to +85°C) - enables use in battery-powered or ultra-low-power systems. |
| Min Operating VCC | 1.0 V - maintains reset functionality during deep brownout, supporting graceful shutdown sequencing. |
| Temp Coefficient | 30 ppm/°C - minimizes threshold drift across temperature, critical for automotive and industrial environments. |
| Output Type | Push-pull - eliminates external pull-up resistor, reduces BOM count and layout area vs. open-drain alternatives. |
Pinout & Package
ADM810LARTZ-REEL is housed in a 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB standard, with 1.30 mm × 2.90 mm footprint and 1.12 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: VCC | Supply Input | Monitored power rail input; device operates from 1.0 V to 5.5 V and asserts reset when below 4.63 V. |
| 2: RESET | Active-High Output | Push-pull logic output; drives high while VCC < 4.63 V and remains high for 240 ms after VCC exceeds threshold. |
| 3: GND | Ground Reference | 0 V reference for all internal circuitry and output stage; must be connected to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage monitoring | 4.63 V threshold with ±4.75% tolerance over −40°C to +85°C - guarantees consistent reset point across operating range. |
| Low-power operation | 17 μA typical supply current - extends battery life in portable instrumentation and remote sensors. |
| Brownout detection | Functional reset assertion down to 1.0 V VCC - enables controlled shutdown before logic corruption occurs. |
| Glitch-immune comparator | Immunity to transients up to 100 mV overdrive for ≤200 μs - prevents false resets from switching noise or ESD. |
| Wide temperature range | −40°C to +125°C qualification - supports under-hood automotive, industrial PLC, and harsh-environment applications. |
Applications
| Industrial PLC Control | Automotive Body Controller |
|---|---|
|
Use Scenario: Power sequencing and fault recovery in programmable logic controllers exposed to wide ambient temperature swings and noisy 24 V DC rails. IC Role / Device Role / Timing Role: Supervises main 5 V logic supply and triggers hard reset if voltage drops below 4.63 V during load dump or cold-crank events. Use Value: Prevents firmware corruption by ensuring CPU remains held in reset until 5 V rail stabilizes post-brownout, meeting IEC 61000-4-11 immunity requirements. |
Use Scenario: Reset management for microcontrollers in door module ECUs subjected to battery voltage collapse during engine start. IC Role / Device Role / Timing Role: Monitors switched 5 V supply derived from vehicle battery; asserts active-high RESET signal to wake or reinitialize MCU after undervoltage event. Use Value: Enables deterministic restart within 240 ms after VCC recovers to >4.63 V, satisfying ISO 16750-2 cold-crank timing constraints. |
| Medical Patient Monitor | Smart Energy Meter |
|
Use Scenario: Ensuring data integrity during AC power loss and backup battery switchover in Class II medical devices. IC Role / Device Role / Timing Role: Watches primary 3.3 V rail; generates clean, bounce-free active-high reset pulse to halt ADC sampling and preserve EEPROM state. Use Value: Eliminates need for RC-based reset circuits, reducing component count and improving MTBF in safety-critical diagnostics path. |
Use Scenario: Reliable boot initialization in utility meters operating continuously for 15+ years in outdoor enclosures. IC Role / Device Role / Timing Role: Supervises isolated 5 V supply feeding metrology SoC; provides 240 ms reset hold time to allow crystal oscillator stabilization. Use Value: Maintains ±4.75% threshold accuracy over full temperature range, preventing spurious resets due to seasonal ambient shifts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADM809LARTZ-REEL | Same 4.63 V threshold and SOT-23 package, but active-low RESET output. | Requires inverter or MCU with active-low reset input; incompatible with active-high-only processors. | Select only if system design mandates active-low reset signaling and no logic inversion is feasible. |
| MAX809TRD3T | 4.63 V threshold, active-high output, but 140 ms min reset timeout (vs. 240 ms typ for ADM810LARTZ-REEL). | Shorter timeout may cause premature release from reset in systems with slow power ramp or oscillator startup. | Prefer ADM810LARTZ-REEL where guaranteed 240 ms hold time is required for robust boot reliability. |
Compared with ADM809LARTZ-REEL and MAX809TRD3T, the ADM810LARTZ-REEL delivers longer and more deterministic reset assertion (240 ms typical vs. 140 ms min or active-low dependency), making it optimal for systems demanding precise power-on sequencing and brownout recovery without external timing components.
Availability
ADM810LARTZ-REEL is available at Aetrix Electronics and suitable for industrial PLC control, automotive body electronics, medical patient monitors, and smart energy metering requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ADM810LARTZ-REEL 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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADM810LARTZ-REEL belongs to Analog Devices' microprocessor supervisory circuit family, designed specifically for robust power monitoring and reset generation in mission-critical embedded systems operating across extreme temperatures.
FAQ
What is the reset threshold voltage of the ADM810LARTZ-REEL?
The ADM810LARTZ-REEL has a nominal reset threshold voltage of 4.63 V, with a tolerance of ±4.75% over the −40°C to +85°C temperature range. This value is specified in Table 1 of the datasheet and corresponds to the "L" variant in the ADM810 family. The ADM810LARTZ-REEL maintains functional reset assertion down to 1.0 V VCC, ensuring reliable operation during severe brownout conditions.
Does the ADM810LARTZ-REEL require an external pull-up resistor?
No, the ADM810LARTZ-REEL does not require an external pull-up resistor because it features a push-pull RESET output stage. Unlike the open-drain ADM803 series, this device actively drives both high and low states, enabling direct connection to microprocessor reset inputs without additional components. The ADM810LARTZ-REEL can source 150 μA at 1.8 V < VCC < VTH(min) and sink 1.2 mA at VCC = VTH(min).
What is the power-on reset timeout duration for the ADM810LARTZ-REEL?
The ADM810LARTZ-REEL provides a typical power-on reset timeout of 240 ms after VCC rises above the 4.63 V threshold. This value is specified in the "RESET ACTIVE TIMEOUT PERIOD" row of Table 1, with a minimum of 140 ms and maximum of 460 ms over −40°C to +85°C. The internal timer ensures the microprocessor remains held in reset until power rails and clocks stabilize, which is critical for reliable boot sequences.
Is the ADM810LARTZ-REEL RoHS compliant?
Yes, the ADM810LARTZ-REEL is RoHS compliant, as indicated by the "Z" suffix in its part number per the Ordering Guide. The "Z" denotes compliance with Directive 2011/65/EU, and the device is lead-free with matte tin lead finish. RoHS-compliant branding appears as "M6W or ALXX" on the top marking, and the bottom of the device carries "XX" per the datasheet footnote.
What package type is used for the ADM810LARTZ-REEL?
The ADM810LARTZ-REEL is packaged in a 3-lead SOT-23 (RT-3) outline per JEDEC TO-236-AB standard, with dimensions of 2.90 mm × 1.30 mm × 1.12 mm. This package is distinct from the SC70 option used in other variants like ADM810LAKSZ-REEL7. Pin configuration is VCC (Pin 1), RESET (Pin 2), and GND (Pin 3), as shown in Figure 4 of the datasheet.
ADM810LARTZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.63V
- 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
ADM810LARTZ-REEL FAQ
1.How can I place an order for ADM810LARTZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM810LARTZ-REEL 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 ADM810LARTZ-REEL reliable?
The price and inventory of ADM810LARTZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM810LARTZ-REEL is usually 5 days.
3.What payment methods are accepted for ADM810LARTZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM810LARTZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM810LARTZ-REEL?
ADM810LARTZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM810LARTZ-REEL 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 ADM810LARTZ-REEL?
For technical support, including ADM810LARTZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM810LARTZ-REEL requirements.
6.How does Aetrix verify that ADM810LARTZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADM810LARTZ-REEL 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 ADM810LARTZ-REEL meets industry standards.
7.What is the process for return or replacement of ADM810LARTZ-REEL?
All ADM810LARTZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM810LARTZ-REEL, 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 ADM810LARTZ-REEL part is unused and in its original packaging.
Return procedure for ADM810LARTZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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