My Inquiry
My Account
Analog Devices Inc. ADM809JAKSZ-REEL
- Part No.:
- ADM809JAKSZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ADM809JAKSZ-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,774
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADM809JAKSZ-REEL from Analog Devices is a microprocessor supervisory circuit with push-pull active-low RESET output, 4.00 V reset threshold (±2.5% over −40°C to +125°C), 140–460 ms power-on reset timeout, and operation down to 1.0 V VCC. It monitors supply voltage in embedded controllers and ensures reliable reset assertion during brownout and power-up in industrial instrumentation.
For engineers reviewing the ADM809JAKSZ-REEL datasheet, ADM809JAKSZ-REEL pinout, ADM809JAKSZ-REEL application, or ADM809JAKSZ-REEL equivalent, key selection criteria include reset threshold accuracy at temperature extremes, low quiescent current (17 μA typ), SC70-3 package footprint, and compatibility with 3 V/5 V logic interfaces without external pull-up.
Technical Context
The ADM809JAKSZ-REEL integrates a precision voltage comparator with built-in glitch immunity and an internal 240 ms (typ) reset timer. Its reference circuit maintains stable threshold detection across −40°C to +125°C, enabling robust operation in automotive and industrial environments where supply transients and thermal cycling occur.
It features a push-pull RESET output capable of sinking 3.2 mA at VTH min and sourcing 800 μA at VCC > VTH max, eliminating need for external pull-up resistors. The device asserts RESET when VCC falls below 4.00 V and holds it active for ≥140 ms after VCC rises above threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.00 V ±2.5% over −40°C to +125°C - ensures reliable detection of 3.3 V supply brownout before microprocessor malfunction. |
| Reset Timeout | 140–460 ms - guarantees sufficient hold time for CPU initialization and peripheral stabilization after power-up. |
| Supply Current | 17 μA typical at VCC < 3.6 V - enables use in battery-powered or energy-constrained systems without compromising supervision integrity. |
| VCC Operating Range | 1.0 V to 5.5 V - supports valid reset assertion even during deep brownout or partial power loss down to 1 V. |
| Output Type | Push-pull active-low RESET - drives standard CMOS inputs directly; no external pull-up required. |
| Package | 3-lead SC70 (KS-3) - 2.0 mm × 1.25 mm footprint ideal for space-constrained PCB layouts. |
| Temperature Range | −40°C to +125°C - qualified for under-hood automotive, industrial control, and high-reliability embedded applications. |
Pinout & Package
ADM809JAKSZ-REEL uses a 3-lead SC70 (KS-3) package with 0.65 mm lead pitch, 1.0 mm height, and JEDEC-compliant outline per Figure 15. Pin 1 = GND, Pin 2 = RESET, Pin 3 = VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage; must be connected to system ground plane for accurate threshold sensing. |
| 2 | RESET | Active-low push-pull output; sinks current when asserted, sources current when deasserted - compatible with standard microprocessor reset inputs. |
| 3 | VCC | Monitored supply input; powers internal circuitry and defines operating range - accepts 1.0 V to 5.5 V with full functionality. |
Key Features
| Feature | Design Value |
|---|---|
| Precision reset threshold | 4.00 V with ±2.5% tolerance over full temperature range - eliminates need for external trimming in 3.3 V system monitoring. |
| Glitch-immune comparator | Immune to fast VCC transients up to 100 mV overdrive - prevents false resets during switching noise or ESD events. |
| Low-voltage operation | Valid RESET assertion down to 1.0 V VCC - ensures fail-safe behavior during deep undervoltage conditions. |
| Wide temperature qualification | Specified from −40°C to +125°C - meets AEC-Q100 Grade 1 requirements for automotive under-hood use. |
| SC70-3 footprint | 2.0 mm × 1.25 mm body size - saves >40% board area vs. SOT-23-3 while maintaining identical pinout compatibility. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Monitors 3.3 V microcontroller supply in programmable logic controller exposed to wide ambient temperature swings and electrical noise. IC Role / Device Role / Timing Role: Supervisory circuit providing power-on reset, brownout detection, and reset timeout coordination for ARM Cortex-M4 core. Use Value: Prevents firmware lockup during factory floor voltage sags by asserting RESET until 3.3 V rail stabilizes for ≥240 ms (typ). | Use Scenario: Embedded in door module ECU to supervise 5 V supply feeding CAN transceiver and window motor driver ICs. IC Role / Device Role / Timing Role: Voltage monitor ensuring safe MCU reset before CAN bus initialization and motor enable sequencing. Use Value: Guarantees 4.00 V threshold detection remains accurate across −40°C cold cranking to +125°C under-hood operation. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Secures safety-critical reset path for ARM-based pump controller operating on isolated 3.3 V rail derived from mains-powered SMPS. IC Role / Device Role / Timing Role: Fail-safe reset generator with guaranteed 1 V operation - maintains reset assertion during AC line dropout. Use Value: Meets IEC 62304 Class C software safety requirement by preventing uncontrolled motor actuation during undervoltage. | Use Scenario: Supervises 3.3 V real-time clock and metrology ASIC supply in DIN-rail mounted electricity meter deployed in outdoor substations. IC Role / Device Role / Timing Role: Precision voltage supervisor with <30 ppm/°C drift - ensures accurate power-fail detection across seasonal temperature variations. Use Value: Enables reliable data retention and secure shutdown before backup capacitor discharge below RTC operating voltage. |
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 | 4.00 V threshold, SOT-23-3 package, 140 ms min reset timeout, 20 μA supply current | Lacks extended temperature rating (−40°C to +85°C only); not qualified for automotive or industrial high-temp use | Select when cost sensitivity outweighs extended temperature needs and SOT-23-3 layout is fixed. |
| TPS3808G33DBVR | 3.3 V threshold (not 4.00 V), adjustable delay option, 1.5 μA quiescent current, SOT-23-6 | Requires external resistor for delay tuning; different threshold invalidates direct replacement in 3.3 V supply monitoring | Choose only if redesign allows threshold adjustment and ultra-low power is critical; not drop-in. |
Compared with MAX809TRD3-T, ADM809JAKSZ-REEL provides guaranteed operation to +125°C and tighter threshold stability, while TPS3808G33DBVR offers lower current but mismatched voltage sense - making ADM809JAKSZ-REEL the sole fit for 4.00 V, high-temp, SC70-constrained designs.
Availability
ADM809JAKSZ-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 ADM809JAKSZ-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 ADM809 belongs to Analog Devices' microprocessor supervisory product line, engineered for deterministic reset generation in mission-critical embedded systems where supply voltage integrity directly impacts functional safety and system reliability.
FAQ
What is the exact reset threshold voltage of the ADM809JAKSZ-REEL and how does it vary with temperature?
The ADM809JAKSZ-REEL has a nominal reset threshold of 4.00 V, with tolerance of ±2.5% over −40°C to +125°C (3.80 V to 4.20 V). At 25°C, it is specified as 3.93 V to 4.06 V. This tight threshold stability ensures consistent brownout detection across automotive and industrial operating conditions without calibration.
Does the ADM809JAKSZ-REEL require an external pull-up resistor on the RESET pin?
No, the ADM809JAKSZ-REEL features a push-pull RESET output and does not require an external pull-up resistor. It actively drives both high and low states - sourcing up to 800 μA and sinking up to 3.2 mA - making it compatible with standard microprocessor reset inputs without additional components.
What is the minimum VCC voltage at which the ADM809JAKSZ-REEL can still assert a valid RESET signal?
The ADM809JAKSZ-REEL maintains valid RESET assertion down to 1.0 V VCC, as confirmed in the Absolute Maximum Ratings and General Description sections. Below 1.0 V, the output enters high-impedance state; for operation down to 0 V, a 100 kΩ pull-down resistor is recommended per Analog Devices Application Note.
Is the ADM809JAKSZ-REEL RoHS compliant and what does the 'Z' suffix indicate?
Yes, the 'Z' in ADM809JAKSZ-REEL denotes RoHS compliance per the Ordering Guide footnote. The part meets EU Directive 2011/65/EU and is lead-free, with halogen-free packaging. The 'Z' also indicates bottom-side date code marking per Analog Devices' packaging standard.
How does the ADM809JAKSZ-REEL differ from the ADM803JAKSZ-REEL and ADM810JAKSZ-REEL variants?
The ADM809JAKSZ-REEL uses a push-pull active-low RESET output, whereas ADM803JAKSZ-REEL has open-drain (requiring pull-up) and ADM810JAKSZ-REEL provides active-high RESET. All share identical 4.00 V threshold and SC70-3 package, but output polarity and drive architecture differ - ADM809JAKSZ-REEL is selected when active-low push-pull is required.
ADM809JAKSZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4V
- 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:
- SC-70-3
ADM809JAKSZ-REEL FAQ
1.How can I place an order for ADM809JAKSZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM809JAKSZ-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 ADM809JAKSZ-REEL reliable?
The price and inventory of ADM809JAKSZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM809JAKSZ-REEL is usually 5 days.
3.What payment methods are accepted for ADM809JAKSZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM809JAKSZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM809JAKSZ-REEL?
ADM809JAKSZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM809JAKSZ-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 ADM809JAKSZ-REEL?
For technical support, including ADM809JAKSZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM809JAKSZ-REEL requirements.
6.How does Aetrix verify that ADM809JAKSZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADM809JAKSZ-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 ADM809JAKSZ-REEL meets industry standards.
7.What is the process for return or replacement of ADM809JAKSZ-REEL?
All ADM809JAKSZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM809JAKSZ-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 ADM809JAKSZ-REEL part is unused and in its original packaging.
Return procedure for ADM809JAKSZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADM809JAKSZ-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…
