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Analog Devices Inc. ADM698ARZ-REEL
- Part No.:
- ADM698ARZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADM698ARZ-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,023
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Product details
Overview
ADM698ARZ-REEL from Analog Devices is a microprocessor supervisory circuit designed for 5 V power supply monitoring in embedded systems. It guarantees RESET assertion down to VCC = 1 V, features a precision 4.65 V voltage monitor with 40 mV hysteresis, delivers 140–280 ms reset pulse width, and operates across –40°C to +85°C - enabling reliable power-up/power-down sequencing in industrial controllers.
For engineers reviewing the ADM698ARZ-REEL datasheet, ADM698ARZ-REEL pinout, ADM698ARZ-REEL application, or ADM698ARZ-REEL equivalent, key selection criteria include guaranteed low-voltage reset functionality, SOIC-16 package compatibility, watchdog-free operation (vs. ADM699), and compliance with critical mP power monitoring requirements in automotive and computing systems.
Technical Context
The ADM698ARZ-REEL implements a precision bandgap-based voltage detector with fixed 4.65 V threshold and 40 mV hysteresis to prevent false resets during VCC transients. Its internal monostable generates a minimum 140 ms active-low RESET pulse on power-up, power-down, and brown-out events - independent of external components.
Unlike the ADM699, it omits watchdog timer circuitry and WDI/WDO pins, simplifying integration where software supervision is handled externally. The SOIC-16 package provides both active-low RESET and active-high RESET outputs, supporting microprocessors requiring either polarity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC 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 (4.5 V min / 4.73 V max) - set for 5 V ±5% supply margin with hysteresis to reject noise. |
| Reset Pulse Width | 140–280 ms - ensures stable microprocessor initialization after power stabilization. |
| Supply Current | 0.6 mA typ (1.95 mA max) - enables low-power operation in battery-backed or energy-sensitive systems. |
| RESET Low Voltage @ VCC = 1 V | 4–200 mV - guarantees functional reset hold-down even during deep undervoltage conditions. |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade reliability without derating. |
Pinout & Package
ADM698ARZ-REEL is housed in a 16-lead SOIC (R-16) package with 1.27 mm pitch, 10.3 mm × 7.5 mm body, and gull-wing leads. Pin 1 marked via notch or dot; moisture sensitivity level (MSL) 1 per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 12, 13, 14, 15 | GND / NC | Pins 1, 2, 12, 13, 14, 15 are GND; pins 3, 4 are no-connect - provide low-impedance ground return and thermal dissipation. |
| 5, 6, 7, 8, 9, 10, 11, 16 | VCC / RESET / RESET | Pins 5, 6, 7, 8, 9, 10, 11: VCC (dual-supply routing); pin 16: active-low RESET; pin 11: active-high RESET - dual-reset polarity support for diverse µP families. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RESET at VCC = 1 V | Ensures deterministic microprocessor shutdown and restart during severe undervoltage, preventing undefined state retention. |
| 40 mV Reset Threshold Hysteresis | Eliminates chatter on RESET output during slow-rising/falling VCC transitions or ripple-induced threshold crossings. |
| Dual-Polarity RESET Outputs | Active-low (pin 16) and active-high (pin 11) outputs eliminate need for external inverters in mixed-logic designs. |
| Low 0.6 mA Quiescent Current | Reduces system standby power consumption - critical for always-on or battery-buffered applications. |
Applications
| Industrial PLC Controller | Automotive Engine Control Unit |
|---|---|
Use Scenario: Power sequencing and fault recovery in programmable logic controllers exposed to wide ambient temperature swings and EMI. IC Role / Device Role / Timing Role: Supervisory circuit providing brown-out detection, power-up delay, and deterministic reset assertion during voltage sags. Use Value: Prevents firmware lockup by asserting RESET for ≥140 ms when VCC drops below 4.65 V - validated over –40°C to +85°C. |
Use Scenario: Monitoring 5 V rail powering MCU and sensor interfaces in engine bay environments. IC Role / Device Role / Timing Role: Voltage supervisor ensuring safe MCU reset during alternator load dump or cold-crank undervoltage events. Use Value: Guarantees RESET remains asserted down to VCC = 1 V, enabling controlled shutdown before EEPROM corruption occurs. |
| Medical Diagnostic Instrument | Network Router Management Processor |
Use Scenario: Ensuring fail-safe boot sequence in Class II medical devices with redundant power paths. IC Role / Device Role / Timing Role: Primary reset generator coordinating power-good timing between isolated DC/DC converters and ARM Cortex-M host. Use Value: Dual RESET polarity (pins 11 and 16) allows direct interface to both legacy and modern SoCs without level-shifting. |
Use Scenario: Managing boot integrity of Linux-based management processors in carrier-grade routers. IC Role / Device Role / Timing Role: Standalone supervisor decoupling reset timing from complex PMIC behavior during hot-swap events. Use Value: 4.65 V threshold with 40 mV hysteresis rejects line noise while maintaining precise 5 V rail qualification per IEEE 802.3af. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX698CPA+ | Same 4.65 V threshold, 200 ms reset timeout, but only 8-pin DIP; no active-high RESET output. | Lacks SOIC-16 footprint and dual-polarity outputs - requires PCB redesign and external inverter for active-high reset. | Select when legacy through-hole assembly or cost-sensitive non-SOIC designs are prioritized. |
| TPS3808G33DBVR | Adjustable threshold (via resistor divider), 3.3 V nominal, 35 µA quiescent current - not pin-compatible. | Designed for 3.3 V systems; requires external components for 5 V monitoring and lacks guaranteed 1 V reset operation. | Choose for ultra-low-power 3.3 V applications where adjustable reset threshold is required. |
Compared with MAX698CPA+ and TPS3808G33DBVR, the ADM698ARZ-REEL uniquely combines guaranteed 1 V reset functionality, dual-polarity outputs, and SOIC-16 packaging - making it optimal for industrial 5 V systems demanding robust, drop-in-capable supervision without external components.
Availability
ADM698ARZ-REEL is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive engine control units, and medical diagnostic instruments requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for ADM698ARZ-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 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 ADM698ARZ-REEL belongs to Analog Devices' microprocessor supervisory circuits product line, engineered specifically for deterministic power monitoring and reset generation in mission-critical 5 V embedded systems.
FAQ
What is the reset voltage threshold of the ADM698ARZ-REEL?
The ADM698ARZ-REEL has a precision reset voltage threshold of 4.65 V (typical), with a guaranteed range of 4.5 V to 4.73 V over temperature. This threshold is optimized for nominal 5 V supplies with ±5% tolerance and includes 40 mV hysteresis to prevent oscillation during marginal VCC conditions. The ADM698ARZ-REEL uses an internal bandgap reference to maintain accuracy across –40°C to +85°C.
Does the ADM698ARZ-REEL include a watchdog timer?
No, the ADM698ARZ-REEL does not include a watchdog timer. It is the non-watchdog variant of the ADM698/ADM699 family. The watchdog input (WDI) and watchdog output (WDO) functions are exclusive to the ADM699 series. The ADM698ARZ-REEL provides only voltage monitoring and reset generation - making it ideal for systems where software supervision is implemented externally or not required.
What are the key differences between ADM698ARZ-REEL and ADM699ARZ-REEL?
The ADM698ARZ-REEL and ADM699ARZ-REEL share identical voltage monitoring, reset timing, and SOIC-16 packaging, but the ADM699ARZ-REEL adds a 1-second watchdog timer with WDI input and WDO output. The ADM698ARZ-REEL omits these pins and associated circuitry, reducing complexity and cost where hardware-level software execution monitoring is unnecessary.
Can the ADM698ARZ-REEL operate with VCC below 4.65 V and still assert RESET?
Yes - the ADM698ARZ-REEL guarantees RESET assertion down to VCC = 1 V, meaning the RESET output remains logic low even as the supply collapses. This ensures the microprocessor stays held in reset during deep undervoltage events, preventing erratic behavior or memory corruption. At VCC = 1 V, RESET low voltage is specified at 4–200 mV with 10 µA sink current.
What is the function of the active-high RESET pin on the ADM698ARZ-REEL?
The active-high RESET pin (pin 11) on the ADM698ARZ-REEL provides a complementary output to the active-low RESET (pin 16), allowing direct interface to microprocessors that require an active-high reset signal - such as certain ARM Cortex-M or Renesas RX series MCUs. This eliminates the need for external inverters or level shifters, simplifying board layout and improving signal integrity.
ADM698ARZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.65V
- Output:
- Push-Pull, Push-Pull
- Reset:
- Active High/Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADM698ARZ-REEL FAQ
1.How can I place an order for ADM698ARZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM698ARZ-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 ADM698ARZ-REEL reliable?
The price and inventory of ADM698ARZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM698ARZ-REEL is usually 5 days.
3.What payment methods are accepted for ADM698ARZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM698ARZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM698ARZ-REEL?
ADM698ARZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM698ARZ-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 ADM698ARZ-REEL?
For technical support, including ADM698ARZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM698ARZ-REEL requirements.
6.How does Aetrix verify that ADM698ARZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADM698ARZ-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 ADM698ARZ-REEL meets industry standards.
7.What is the process for return or replacement of ADM698ARZ-REEL?
All ADM698ARZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM698ARZ-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 ADM698ARZ-REEL part is unused and in its original packaging.
Return procedure for ADM698ARZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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