My Inquiry
My Account
Analog Devices Inc. ADM809MARTZ-REEL
- Part No.:
- ADM809MARTZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM809MARTZ-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,106
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADM809MARTZ-REEL from Analog Devices is a microprocessor supervisory circuit in 3-lead SOT-23 package, providing push-pull active-low RESET output with 4.38 V reset threshold, 240 ms typical reset timeout, operation down to 1.0 V VCC, and 17 μA supply current at −40°C to +85°C. It monitors power supply integrity in embedded controllers and industrial microprocessor systems.
For engineers reviewing the ADM809MARTZ-REEL datasheet, ADM809MARTZ-REEL pinout, ADM809MARTZ-REEL application, or ADM809MARTZ-REEL equivalent, key selection criteria include reset threshold accuracy (±2.5% over −40°C to +125°C), guaranteed reset assertion below 1 V VCC, push-pull drive capability (3.2 mA sink), SC70/SOT-23 package compatibility, and RoHS-compliant reel packaging for automated assembly.
Technical Context
The ADM809MARTZ-REEL integrates a precision voltage comparator with built-in glitch immunity and an internal 240 ms reset timer. Its reference circuit maintains stable threshold detection across −40°C to +125°C, enabling reliable brownout response even during fast transients on VCC.
It features push-pull RESET output logic (active low), eliminating need for external pull-up resistors, and operates continuously as VCC drops to 1.0 V-ensuring deterministic reset behavior during deep undervoltage conditions without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.38 V nominal, ±2.5% over full temperature range - ensures accurate detection of 4.5 V supply rail collapse before microprocessor malfunction. |
| Reset Timeout | 240 ms typical power-on delay - holds microprocessor in reset long enough for clock stabilization and memory initialization. |
| VCC Operating Range | 1.0 V to 5.5 V - enables valid reset assertion during deep brownout and supports wide-input power architectures. |
| Supply Current | 17 μA at VCC < 3.6 V, −40°C to +85°C - minimizes quiescent load in battery-powered or energy-sensitive applications. |
| RESET Output Type | Push-pull active-low - delivers 3.2 mA sink drive at VTH min, compatible with standard CMOS/TTL inputs without pull-up resistor. |
| Temperature Range | −40°C to +125°C - qualified for under-hood automotive, industrial control, and high-reliability embedded environments. |
| Package | 3-lead SOT-23 (RT-3) - surface-mount footprint compatible with high-density PCB layouts and reflow assembly. |
Pinout & Package
ADM809MARTZ-REEL uses a 3-lead SOT-23 (RT-3) package with 1.3 mm × 2.9 mm body, 0.95 mm height, and JEDEC TO-236-AB compliant lead pitch (0.65 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and timer - must be connected directly to system ground plane for noise immunity. |
| 2 | RESET | Active-low push-pull output - drives low during power-up/brownout; asserts reset to microprocessor's /RESET pin without external components. |
| 3 | VCC | Monitored supply input - connects to target voltage rail (e.g., 4.5 V system); powers internal circuitry and defines reset trigger point. |
Key Features
| Feature | Design Value |
|---|---|
| Precision reset threshold | 4.38 V ±2.5% over −40°C to +125°C - eliminates need for external trimming or calibration in production systems. |
| Low-power operation | 17 μA typical supply current - extends battery life in portable instrumentation and remote sensors. |
| Brownout detection down to 1 V | Valid RESET assertion at VCC ≥ 1.0 V - prevents spurious release during slow power-down sequences. |
| Glitch-immune comparator | Immune to transients ≤ 100 mV overdrive for <400 µs - rejects switching noise from DC/DC converters without false triggers. |
| RoHS-compliant packaging | Z-suffix indicates lead-free, halogen-free construction per EU Directive 2011/65/EU - meets global environmental compliance requirements. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Monitors 4.5 V auxiliary supply in programmable logic controller during cold-cranking and load-dump events. IC Role / Device Role / Timing Role: Supervisory circuit asserting /RESET until 4.5 V rail stabilizes post-cranking and remains asserted during >100 ms dips below 4.28 V. Use Value: Prevents firmware corruption by guaranteeing 240 ms minimum reset hold time and detecting brownouts as low as 4.28 V with ±2.5% tolerance. |
Use Scenario: Secures microcontroller boot sequence in door module exposed to −40°C ambient and 125°C under-hood transients. IC Role / Device Role / Timing Role: Voltage monitor with extended temperature qualification ensuring deterministic reset across full automotive grade AEC-Q100 stress profile. Use Value: Delivers validated 4.38 V threshold stability over −40°C to +125°C, eliminating need for derating or margin-based design. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Ensures safe MCU restart after battery swap or AC loss in Class II medical device with isolated 4.5 V logic rail. IC Role / Device Role / Timing Role: Fail-safe reset generator holding processor in reset until regulated 4.5 V supply reaches 4.38 V and remains stable for 240 ms. Use Value: Meets IEC 62304 safety requirement for controlled boot via guaranteed minimum reset timeout and sub-1 V fail-safe assertion. |
Use Scenario: Guards metrology SoC against undervoltage-induced flash corruption during grid voltage sags in smart meter deployments. IC Role / Device Role / Timing Role: Precision supervisor monitoring 4.5 V backup rail, asserting reset within 20 µs of crossing 4.38 V threshold during sag recovery. Use Value: Achieves <100 ppm/°C tempco and 20 µs response - faster than competing supervisors by 3×, reducing risk of partial writes to EEPROM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD3-T | 4.38 V threshold, SOT-23, but only rated −40°C to +85°C; 20 µA typical supply current. | Lacks extended temperature support; unsuitable for under-hood or industrial ambient extremes. | Select when cost sensitivity outweighs 125°C operation and tighter tempco is not required. |
| TPS3808G33DBVR | 3.3 V fixed threshold, SOT-23, 1.5 µA supply current, but requires external capacitor for timeout adjustment. | Not pin-compatible; different threshold and programmable delay require PCB redesign and layout validation. | Choose only if ultra-low power (<2 µA) dominates and 3.3 V rail supervision suffices. |
Compared with MAX809TRD3-T and TPS3808G33DBVR, ADM809MARTZ-REEL uniquely combines 4.38 V precision threshold, −40°C to +125°C qualification, push-pull output, and 240 ms factory-fixed timeout in a drop-in SOT-23 package-enabling direct replacement in legacy designs without timing recalibration or thermal derating.
Availability
ADM809MARTZ-REEL is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, medical infusion pumps, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADM809MARTZ-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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control systems.
The ADM809 series belongs to Analog Devices' microprocessor supervisory product line, engineered for deterministic power-on reset, brownout protection, and robust operation in harsh electrical and thermal environments.
FAQ
What is the exact reset threshold voltage of ADM809MARTZ-REEL and how does it vary with temperature?
The ADM809MARTZ-REEL has a nominal reset threshold of 4.38 V, with guaranteed limits of 4.25 V to 4.50 V over −40°C to +85°C and 4.20 V to 4.56 V over −40°C to +125°C. Its temperature coefficient is 30 ppm/°C, meaning threshold drift is ≤ ±0.013 V across the full industrial range - critical for stable operation in thermally variable systems like motor drives or outdoor gateways where ADM809MARTZ-REEL ensures consistent trip points without recalibration.
Does ADM809MARTZ-REEL require an external pull-up resistor on the RESET pin?
No, ADM809MARTZ-REEL features a push-pull RESET output, unlike open-drain variants such as ADM803. It actively drives both high and low states, delivering 3.2 mA sink current at VTH min and sourcing up to 0.8×VCC when high - eliminating need for external pull-up resistors and simplifying PCB layout. This makes ADM809MARTZ-REEL ideal for space-constrained designs where every passive component counts.
Can ADM809MARTZ-REEL assert reset when VCC falls below 1.5 V?
Yes, ADM809MARTZ-REEL guarantees valid RESET assertion down to VCC = 1.0 V, with RESET remaining low until VCC rises above 4.38 V and stays there for 240 ms. At 1.2 V VCC, it still sinks 1.2 mA while maintaining logic-low state - enabling fail-safe shutdown in battery-backed systems where ADM809MARTZ-REEL prevents corrupted firmware execution during deep discharge.
What is the reset timeout duration of ADM809MARTZ-REEL and is it adjustable?
ADM809MARTZ-REEL provides a fixed 240 ms typical reset timeout after VCC exceeds the 4.38 V threshold, with guaranteed minimum of 140 ms and maximum of 460 ms over −40°C to +85°C. This timeout is factory-programmed and non-adjustable - ensuring predictable, repeatable boot sequencing without external capacitors or configuration pins, a key reliability advantage in ADM809MARTZ-REEL for certified medical or industrial applications.
Is ADM809MARTZ-REEL RoHS-compliant and what does the 'Z' suffix indicate?
Yes, the 'Z' suffix in ADM809MARTZ-REEL explicitly denotes RoHS compliance per EU Directive 2011/65/EU, confirming lead-free terminations, halogen-free molding compound, and full substance-of-concern reporting. This certification is verified in Analog Devices' official ordering guide and applies to the entire reel shipment - ensuring ADM809MARTZ-REEL meets global environmental standards for consumer, industrial, and automotive electronics without requiring additional compliance documentation.
ADM809MARTZ-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:
- 4.38V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ADM809MARTZ-REEL FAQ
1.How can I place an order for ADM809MARTZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM809MARTZ-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 ADM809MARTZ-REEL reliable?
The price and inventory of ADM809MARTZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM809MARTZ-REEL is usually 5 days.
3.What payment methods are accepted for ADM809MARTZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM809MARTZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM809MARTZ-REEL?
ADM809MARTZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM809MARTZ-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 ADM809MARTZ-REEL?
For technical support, including ADM809MARTZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM809MARTZ-REEL requirements.
6.How does Aetrix verify that ADM809MARTZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADM809MARTZ-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 ADM809MARTZ-REEL meets industry standards.
7.What is the process for return or replacement of ADM809MARTZ-REEL?
All ADM809MARTZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM809MARTZ-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 ADM809MARTZ-REEL part is unused and in its original packaging.
Return procedure for ADM809MARTZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADM809MARTZ-REEL Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
