My Inquiry
My Account
Analog Devices Inc. ADM809JAKSZ-REEL7
- Part No.:
- ADM809JAKSZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ADM809JAKSZ-REEL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADM809JAKSZ-REEL7 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), 240 ms typical power-on reset timeout, 17 μA supply current at 3.6 V, and operation down to 1.0 V VCC. It monitors 4 V-class power rails in embedded controllers and industrial microprocessor systems.
For engineers reviewing the ADM809JAKSZ-REEL7 datasheet, ADM809JAKSZ-REEL7 pinout, ADM809JAKSZ-REEL7 application, or ADM809JAKSZ-REEL7 equivalent, key selection criteria include guaranteed reset assertion below 1 V VCC, ±30 ppm/°C temperature coefficient on threshold, glitch-immune comparator, SC70-3 package compatibility, and support for wide-temperature industrial operation.
Technical Context
The ADM809JAKSZ-REEL7 integrates a precision voltage reference, comparator with built-in glitch immunity, and internal 240 ms reset timer. Its reset comparator operates reliably with VCC as low as 1.0 V and maintains valid logic levels across full industrial temperature range.
This device uses a fixed 4.00 V reset threshold optimized for monitoring 4 V nominal supplies, with tight tolerance (±2.5% max over −40°C to +125°C) and low temperature drift (30 ppm/°C). The push-pull output drives RESET directly without external pull-up, sinking up to 3.2 mA at VTH min.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.00 V (typ), ±2.5% over −40°C to +125°C - ensures reliable reset assertion for 4 V rail monitoring |
| Reset Timeout | 240 ms (typ), 140–460 ms (min–max) - holds microprocessor in reset until supply stabilizes |
| Supply Current | 17 μA (typ) at VCC < 3.6 V - enables use in battery-powered and ultra-low-power systems |
| VCC Operating Range | 1.0 V to 5.5 V - supports brownout detection down to near-zero supply conditions |
| Output Type | Push-pull active-low RESET - eliminates need for external pull-up resistor |
| Reset Output Low | 0.4 V max at ISINK = 3.2 mA - ensures solid logic-low interface with 3.3 V/5 V microcontrollers |
| Temp Coefficient | 30 ppm/°C - minimizes threshold drift across industrial temperature range |
Pinout & Package
ADM809JAKSZ-REEL7 is housed in a 3-lead SC70 (KS-3) package, measuring 2.00 mm × 2.10 mm × 0.95 mm, with gull-wing leads and JEDEC-compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal circuitry and reset comparator; must be connected to system ground plane |
| 2 | RESET | Active-low push-pull output; asserts low during power-up, brownout, or power-down; drives directly into MCU reset input |
| 3 | VCC | Monitored supply input; powers internal circuitry and serves as reference for reset threshold detection |
Key Features
| Feature | Design Value |
|---|---|
| Glitch-immune reset comparator | Rejects transients ≤100 μs duration at 100 mV overdrive - prevents false resets from supply noise |
| Low-voltage reset operation | Valid RESET assertion down to 1.0 V VCC - detects brownout before microprocessor loses functional integrity |
| Precision threshold accuracy | ±2.5% over full temperature range - eliminates need for external calibration in industrial designs |
| Ultra-low quiescent current | 17 μA typical - extends battery life in portable instrumentation and remote sensors |
| Wide temperature rating | −40°C to +125°C operation - qualified for under-hood automotive, industrial PLC, and outdoor equipment |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Monitors 4.0 V auxiliary supply powering CAN controller and I/O drivers in programmable logic controllers. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-low RESET to hold ARM Cortex-M4 core in reset until 4 V rail reaches stable regulation. Use Value: Prevents firmware corruption during cold cranking or load dump by guaranteeing 240 ms minimum reset hold time and operation down to 1.0 V. |
Use Scenario: Watches 4.0 V domain supplying microcontroller, LIN transceivers, and door lock actuators in body electronics. IC Role / Device Role / Timing Role: Voltage monitor generating clean, glitch-free reset signal synchronized to 4 V rail ramp-up after ignition switch closure. Use Value: Ensures deterministic boot sequence despite battery voltage sag to 6 V during starter engagement, using 1.0 V operational floor. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Supervises 4.0 V backup rail derived from supercapacitor during AC mains failure in Class II medical devices. IC Role / Device Role / Timing Role: Reset generator maintaining MCU in safe state while energy storage decays, with precise 4.00 V trip point. Use Value: Enables fail-safe shutdown and alarm activation before critical 3.3 V logic supply drops below 3.0 V, leveraging ±2.5% threshold accuracy. |
Use Scenario: Monitors isolated 4.0 V DC-DC output powering metrology SoC and RF mesh transceiver in ANSI C12.22-compliant meters. IC Role / Device Role / Timing Role: Power-on supervisor ensuring secure boot of cryptographic processor only after stable 4 V supply is confirmed. Use Value: Guarantees tamper-resistant initialization by enforcing 240 ms reset timeout and rejecting fast transients per IEC 61000-4-4 Level 3. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SEUR+T | 4.00 V threshold, SOT-23-3, 1.2 μA max supply current, 140 ms min reset timeout | Lower quiescent current but tighter reset timeout spec; no 1 V operation guarantee | Preferred where ultra-low power dominates over brownout resilience |
| TPS3808G33DBVR | 3.3 V threshold (not 4.0 V), SOT-23-6, adjustable delay, 1.8 μA supply current | Requires external resistor for delay tuning; mismatched threshold necessitates redesign of monitored rail | Only viable if system can shift to 3.3 V supervision and accept layout changes |
Compared with MAX809SEUR+T and TPS3808G33DBVR, the ADM809JAKSZ-REEL7 uniquely combines 4.00 V precision threshold, 1.0 V operational floor, and SC70-3 footprint-enabling drop-in replacement in space-constrained industrial controllers without compromising brownout robustness.
Availability
ADM809JAKSZ-REEL7 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-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADM809JAKSZ-REEL7 belongs to Analog Devices' microprocessor supervisory IC family, engineered specifically for deterministic power-on reset generation and brownout protection in harsh-environment embedded systems.
FAQ
What is the exact reset threshold voltage of ADM809JAKSZ-REEL7 and its tolerance over temperature?
The ADM809JAKSZ-REEL7 has a nominal reset threshold of 4.00 V at 25°C, with a guaranteed range of 3.80 V to 4.20 V over −40°C to +125°C. This ±2.5% tolerance ensures reliable detection of undervoltage on 4 V nominal rails without requiring external trimming or calibration in the ADM809JAKSZ-REEL7 design.
Does ADM809JAKSZ-REEL7 support operation below 1.5 V VCC, and what happens to the RESET output at low voltage?
Yes, ADM809JAKSZ-REEL7 remains fully functional down to 1.0 V VCC. Its RESET output stays asserted low until VCC rises above the 4.00 V threshold and sustains the 240 ms timeout. Below 0.8 V, the output transitions to high-impedance, but the ADM809JAKSZ-REEL7 continues asserting reset via internal logic until VCC recovers.
Is ADM809JAKSZ-REEL7 pin-compatible with other members of the ADM803/ADM809/ADM810 family?
No-ADM809JAKSZ-REEL7 uses the same SC70-3 pinout as ADM803 and ADM810 variants, but pin functions differ: Pin 2 is RESET (active-low push-pull) in ADM809JAKSZ-REEL7, whereas ADM810 uses Pin 2 for active-high RESET and ADM803 requires an external pull-up on its open-drain Pin 2. Direct substitution without schematic review is not recommended.
What is the maximum sink current capability of the RESET output in ADM809JAKSZ-REEL7?
The ADM809JAKSZ-REEL7 RESET output sinks up to 3.2 mA while maintaining ≤0.4 V at VCC = VTH min (3.80 V), and up to 1.2 mA at VCC = VTH min for R/S/T/Z variants. This drive strength ensures direct interfacing with standard CMOS and TTL reset inputs without buffering in the ADM809JAKSZ-REEL7 application.
How does ADM809JAKSZ-REEL7 handle fast transients on the VCC line, and what is its immunity specification?
The ADM809JAKSZ-REEL7 reset comparator features built-in glitch immunity, rejecting transients ≤100 μs duration when overdrive (VTH − VCC) is ≥100 mV. Per Figure 11 in the datasheet, it withstands 350 μs transients at 10 mV overdrive-ensuring no spurious reset assertion during switching noise or EFT events in the ADM809JAKSZ-REEL7 deployment.
ADM809JAKSZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-REEL7 FAQ
1.How can I place an order for ADM809JAKSZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM809JAKSZ-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 ADM809JAKSZ-REEL7 reliable?
The price and inventory of ADM809JAKSZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM809JAKSZ-REEL7 is usually 5 days.
3.What payment methods are accepted for ADM809JAKSZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM809JAKSZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM809JAKSZ-REEL7?
ADM809JAKSZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM809JAKSZ-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 ADM809JAKSZ-REEL7?
For technical support, including ADM809JAKSZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM809JAKSZ-REEL7 requirements.
6.How does Aetrix verify that ADM809JAKSZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADM809JAKSZ-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 ADM809JAKSZ-REEL7 meets industry standards.
7.What is the process for return or replacement of ADM809JAKSZ-REEL7?
All ADM809JAKSZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM809JAKSZ-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 ADM809JAKSZ-REEL7 part is unused and in its original packaging.
Return procedure for ADM809JAKSZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADM809JAKSZ-REEL7 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…
