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Analog Devices Inc. ADM8698ANZ
- Part No.:
- ADM8698ANZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ADM8698ANZ.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,013
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Product details
Overview
ADM8698ANZ from Analog Devices is a microprocessor supervisory circuit that monitors +5 V power supply integrity, asserts RESET below 4.65 V threshold with 40 mV hysteresis, guarantees RESET functionality down to VCC = 1 V, and delivers 140–280 ms reset pulse width-used in industrial controllers and embedded systems requiring reliable power-on reset and brown-out protection.
For engineers reviewing the ADM8698ANZ datasheet, ADM8698ANZ pinout, ADM8698ANZ application, or ADM8698ANZ equivalent, key selection criteria include guaranteed reset assertion at 1 V VCC, precision 4.65 V voltage monitor, low 70 µA supply current, 140–280 ms reset timeout, and compatibility with 8-pin plastic DIP (N-8) packaging for through-hole industrial designs.
Technical Context
The ADM8698ANZ integrates a precision voltage detector with 4.65 V nominal threshold and 40 mV hysteresis to prevent false resets during VCC transients. It employs an internal monostable to hold RESET low for ≥140 ms after VCC rises above threshold, ensuring stable power-up sequencing.
No watchdog timer or WDI input is present-this is strictly the ADM8698 variant, distinguishing it from the ADM8699. The device operates across –40°C to +85°C and supports only active-low open-drain RESET output in its 8-pin DIP configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 3.0 V to 5.5 V - supports nominal 5 V systems with ±10% tolerance and brown-out detection down to 3 V. |
| Reset Threshold | 4.65 V (typ), ±100 mV - precisely tracks 5 V rail; 40 mV hysteresis prevents chatter during marginal supply conditions. |
| RESET Active Time | 140–280 ms - ensures microprocessor core and peripherals fully initialize before release from reset. |
| Supply Current | 70 µA (typ) - enables low-power operation in battery-backed or energy-sensitive embedded applications. |
| RESET Output Voltage (Low) | ≤0.4 V at 3.2 mA sink - compatible with TTL/CMOS logic inputs without pull-up resistor redesign. |
| Min VCC for RESET Assertion | 1.0 V - guarantees functional reset hold-down during deep undervoltage or controlled shutdown sequences. |
Pinout & Package
ADM8698ANZ is housed in an 8-pin plastic DIP (N-8) package with 0.3-inch body width and through-hole mounting. Pin 1 is marked by a notch or dot; pins are numbered counterclockwise from top-left when viewed from top.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | +5 V power supply input; must be decoupled with 0.1 µF capacitor per datasheet recommendation. |
| 2 | GND | Ground reference for all internal circuitry and RESET output; requires low-impedance connection. |
| 3 | RESET | Active-low open-drain reset output; sinks up to 3.2 mA; requires external pull-up for microprocessor reset line. |
| 4 | NC | No connect - internally unconnected; must remain floating or grounded per layout guidelines. |
| 5 | NC | No connect - not bonded; no electrical function; avoid routing signals or traces to this pin. |
| 6 | NC | No connect - unused; electrically isolated; no thermal or ESD implications. |
| 7 | NC | No connect - reserved; no internal connection; leave unconnected on PCB. |
| 8 | GND | Second ground terminal - improves noise immunity and thermal dissipation; tie to same ground plane as Pin 2. |
Key Features
| Feature | Design Value |
|---|---|
| Precision 4.65 V voltage monitor | Enables accurate detection of 5 V rail collapse while accommodating ±5% supply tolerance and rejecting transient noise via 40 mV hysteresis. |
| Guaranteed RESET at VCC = 1 V | Ensures microprocessor remains held in known state during deep undervoltage events, supporting safe power-down sequencing. |
| 140–280 ms reset timeout | Provides sufficient delay for oscillator stabilization and memory initialization in 8051, ARM Cortex-M0, and similar MCUs. |
| 70 µA typical supply current | Reduces standby power draw in always-on industrial gateways and remote sensor nodes without compromising supervision reliability. |
| Industrial temperature range | Rated for continuous operation from –40°C to +85°C - validated for use in motor drives, PLC modules, and outdoor telemetry hardware. |
Applications
| Industrial PLC Modules | Automotive Body Control Units |
|---|---|
|
Use Scenario: Power monitoring in programmable logic controller backplanes where 5 V rails feed I/O drivers and communication interfaces. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-low RESET to halt CPU execution during undervoltage or power interruption. Use Value: Prevents corrupted register writes and undefined state transitions during brown-out, reducing field failure rates in factory automation equipment. |
Use Scenario: Reset management for microcontrollers managing door locks, lighting, and window motors in 12 V automotive systems with local 5 V LDO regulation. IC Role / Device Role / Timing Role: Voltage supervisor ensuring MCU reset occurs before 5 V rail drops below operational minimum, avoiding latch-up or code runaway. Use Value: Meets ISO 16750-2 pulse test requirements for supply dropouts by guaranteeing reset assertion down to 1 V VCC. |
| Medical Diagnostic Instruments | Energy Metering Hardware |
|
Use Scenario: Power integrity assurance in portable ultrasound or patient monitor subsystems using 5 V logic rails derived from isolated DC/DC converters. IC Role / Device Role / Timing Role: Primary reset generator coordinating startup of ADCs, display controllers, and USB interface ICs. Use Value: Eliminates need for discrete RC reset circuits, improving long-term timing stability and reducing BOM count in Class II medical devices. |
Use Scenario: Supervision of metrology SoCs and real-time clocks in DIN-rail mounted electricity meters operating continuously under variable grid conditions. IC Role / Device Role / Timing Role: Brown-out detector triggering controlled shutdown and nonvolatile event logging prior to power loss. Use Value: Enables accurate last-read energy capture and tamper-flag setting even during rapid AC mains collapse. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX698CPA+ | 4.65 V threshold, 200 ms reset timeout, 120 µA supply current; no 1 V reset guarantee. | Lacks guaranteed reset assertion below 2.5 V - unsuitable for deep brown-out recovery in battery-buffered systems. | Select when legacy MAXIM footprint compatibility is required and full 1 V operation is not critical. |
| TPS3808G18DBVR | 1.8 V fixed threshold, adjustable delay, 1.4 µA quiescent current; designed for low-voltage MCUs, not 5 V systems. | Threshold mismatch prevents direct replacement in 5 V applications; requires redesign of voltage divider or regulator stage. | Choose only for new designs targeting sub-3.3 V domains; not a functional substitute for ADM8698ANZ in 5 V supervision. |
Compared with MAX698CPA+ and TPS3808G18DBVR, the ADM8698ANZ uniquely combines 4.65 V threshold accuracy, 1 V reset guarantee, and industrial-grade DIP packaging-making it irreplaceable in legacy 5 V controller designs requiring fail-safe brown-out response without layout revision.
Availability
ADM8698ANZ is available at Aetrix Electronics and suitable for industrial PLC modules, automotive body control units, and medical diagnostic instruments requiring stable component supply, long-lifecycle support, and through-hole assembly compatibility.
Supply support for ADM8698ANZ 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, communications, and automotive markets since 1965.
The ADM8698/ADM8699 family was engineered specifically for robust 5 V microprocessor supervision in harsh environments-emphasizing low-voltage reset guarantee, precision threshold stability, and minimal external component count.
FAQ
What is the reset voltage threshold of the ADM8698ANZ?
The ADM8698ANZ features a precision 4.65 V nominal reset voltage threshold with ±100 mV tolerance over temperature and 40 mV hysteresis. This value is laser-trimmed at wafer test and verified across –40°C to +85°C. The ADM8698ANZ uses this threshold to detect brown-out conditions on 5 V power rails and assert RESET accordingly.
Does the ADM8698ANZ include a watchdog timer function?
No, the ADM8698ANZ does not include a watchdog timer. It is the base supervisory variant in the ADM8698/ADM8699 family and lacks the WDI input and associated watchdog logic found only in the ADM8699. The ADM8698ANZ provides only power supply monitoring and reset generation-no software activity monitoring capability.
What is the minimum VCC level at which ADM8698ANZ guarantees RESET assertion?
The ADM8698ANZ guarantees RESET output remains functional (logic low) with VCC as low as 1.0 V. At this voltage, RESET output voltage is ≤200 mV when sinking 100 µA, ensuring reliable hold-down of microprocessor reset inputs during deep undervoltage events.
Which package type does ADM8698ANZ use, and what are its mounting characteristics?
The ADM8698ANZ uses an 8-pin plastic DIP (N-8) package with 0.3-inch body width and through-hole leads. It is lead (Pb)-free and RoHS-compliant, rated for wave soldering at 260°C for 10 seconds. Pin 1 is identified by a notch or dot; the package supports standard DIP socket insertion and manual rework.
Can ADM8698ANZ be used in automotive applications?
Yes, the ADM8698ANZ is qualified for industrial temperature range (–40°C to +85°C) and meets key automotive subsystem requirements including ISO 16750-2 pulse immunity and brown-out resilience. It is deployed in body control units, instrument clusters, and telematics gateways where 5 V rail supervision is needed without watchdog functionality.
ADM8698ANZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.65V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
ADM8698ANZ FAQ
1.How can I place an order for ADM8698ANZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM8698ANZ 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 ADM8698ANZ reliable?
The price and inventory of ADM8698ANZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM8698ANZ is usually 5 days.
3.What payment methods are accepted for ADM8698ANZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM8698ANZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM8698ANZ?
ADM8698ANZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM8698ANZ 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 ADM8698ANZ?
For technical support, including ADM8698ANZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM8698ANZ requirements.
6.How does Aetrix verify that ADM8698ANZ is sourced from the original manufacturer or authorized distributors?
All ADM8698ANZ 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 ADM8698ANZ meets industry standards.
7.What is the process for return or replacement of ADM8698ANZ?
All ADM8698ANZ units undergo pre-shipment inspection (PSI). If there is an issue with ADM8698ANZ, 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 ADM8698ANZ part is unused and in its original packaging.
Return procedure for ADM8698ANZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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