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Analog Devices Inc. ADM698AR-REEL
- Part No.:
- ADM698AR-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADM698AR-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,980
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Product details
Overview
ADM698AR-REEL from Analog Devices is a microprocessor supervisory circuit in 16-lead SOIC package that monitors +5 V power supply, asserts active-low 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 ADM698AR-REEL datasheet, ADM698AR-REEL pinout, ADM698AR-REEL application, or ADM698AR-REEL equivalent, key selection criteria include guaranteed reset assertion at 1 V VCC, precision 4.65 V voltage monitoring, 140 ms minimum reset timeout, low 0.6 mA quiescent current, and SOIC-16 packaging for surface-mount reliability in temperature-critical environments.
Technical Context
The ADM698AR-REEL implements a precision bandgap-based voltage detector with 4.65 V nominal threshold and 40 mV hysteresis to reject VCC transients, coupled with an internal monostable timer that holds RESET low for ≥140 ms after VCC exceeds threshold during power-up. It lacks watchdog functionality - unlike the ADM699 - and does not include WDI or WDO pins.
This device operates across –40°C to +85°C, draws ≤1.95 mA max supply current, and maintains RESET output sink capability (≤0.4 V at 1.6 mA) even as VCC drops to 1 V (200 mV typical at 10 µA). Its RESET output remains functional through full VCC range (3.0 V to 5.5 V), enabling robust operation during undervoltage recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 3.0 V to 5.5 V - supports nominal +5 V rails with ±10% tolerance and safe operation during brown-in/brown-out transitions. |
| Reset Threshold | 4.65 V typ, 4.5–4.73 V min/max - precisely targets 5 V system margin; 40 mV hysteresis prevents chatter near threshold. |
| Reset Pulse Width | 140–280 ms - ensures microprocessor core and peripherals fully stabilize before release from reset state. |
| Supply Current | 0.6 mA typ, 1.95 mA max - enables low-power operation in battery-backed or energy-constrained systems. |
| RESET Low Voltage | ≤0.4 V at ISINK = 1.6 mA (VCC = 4.4 V); ≤200 mV at ISINK = 10 µA (VCC = 1.0 V) - guarantees logic-low assertion even during deep undervoltage. |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded control and automotive under-hood auxiliary modules. |
Pinout & Package
ADM698AR-REEL is housed in a 16-lead SOIC (R-16) package with 1.27 mm pitch, JEDEC MS-012AC compliant, body size 10.50 × 7.60 mm, and thermal resistance θJA = 110°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 15, 16 | GND | Ground reference for all internal circuitry and RESET output; multiple pins reduce ground impedance and improve noise immunity. |
| 3, 4 | VCC | +5 V power input; dual pins lower series resistance and support stable internal voltage regulation during transient load. |
| 13 | RESET | Active-low open-drain reset output; sinks up to 1.6 mA; asserted when VCC < 4.65 V or during power-up sequencing. |
| 14 | RESET | Active-high complementary reset output (SOIC-only); provides direct interface to µPs requiring non-inverted reset signal. |
| 5–12 | NC | No-connect pins; electrically isolated and must remain unconnected per design - no pull-up/down or routing allowed. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RESET at VCC = 1 V | Ensures deterministic microprocessor shutdown and restart integrity during severe undervoltage events, preventing undefined states. |
| Precision 4.65 V Threshold + 40 mV Hysteresis | Rejects short-duration VCC dips (e.g., switching noise, load transients) while reliably detecting sustained brown-out conditions. |
| 140–280 ms Power-Up Reset Timeout | Meets or exceeds typical microprocessor tRST requirements, allowing clock stabilization, memory initialization, and PLL lock. |
| Low 0.6 mA Quiescent Current | Minimizes standby power draw in always-on systems such as industrial HMIs, remote sensors, and backup controller modules. |
| SOIC-16 Package with Dual VCC/GND Pins | Improves power delivery integrity and reduces ground bounce in noisy industrial EMI environments. |
Applications
| Industrial PLC Controllers | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Power sequencing and fault recovery in programmable logic controllers exposed to wide ambient temperature swings and line-voltage fluctuations. IC Role / Device Role / Timing Role: Primary power-on reset generator and brown-out detector; asserts RESET until VCC stabilizes above 4.65 V and sustains it ≥140 ms. Use Value: Prevents firmware corruption and I/O latch-up during factory floor power sags or generator switchover events. |
Use Scenario: Supervision of microcontroller power in door module ECUs where battery voltage may dip to 6–7 V during cranking. IC Role / Device Role / Timing Role: Monitors 5 V regulated rail derived from vehicle battery; triggers hard reset if rail collapses below 4.65 V for >140 ms. Use Value: Eliminates need for external RC timing networks while maintaining AEC-Q100-compatible reset behavior. |
| Medical Diagnostic Instrumentation | Networked Industrial Sensors |
|
Use Scenario: Ensuring deterministic boot sequence in portable ultrasound or patient monitor subsystems with dual-supply architectures. IC Role / Device Role / Timing Role: Provides fail-safe reset coordination between analog front-end and digital processing unit during cold start or AC loss recovery. Use Value: Guarantees RESET remains asserted down to VCC = 1 V, enabling controlled shutdown before ADC/DAC reference collapse. |
Use Scenario: Remote field sensor nodes powered by PoE or long cable runs where DC-DC output may exhibit slow ramp-up or ripple. IC Role / Device Role / Timing Role: Detects undershoot on 5 V bias rail and holds MCU in reset until rail settles within specification for ≥200 ms. Use Value: Avoids spurious wakeups or register misconfiguration caused by marginal power during network reconnection. |
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, but only available in 8-pin DIP; no SOIC option; higher 2.5 mA max supply current. | Lacks SOIC-16 footprint compatibility; unsuitable for automated SMT assembly or space-constrained PCBs. | Select MAX698CPA+ only for through-hole prototyping or legacy DIP-based designs where board real estate is unconstrained. |
| TPS3808G18DBVR | Adjustable threshold (via external resistor divider); 1.8 V fixed option; 3.3 V/5 V compatible; 1.2 µA quiescent current. | Requires external components for 4.65 V setting; lacks guaranteed 1 V operation - minimum VCC = 1.6 V. | Choose TPS3808G18DBVR when ultra-low power or multi-rail flexibility is prioritized over guaranteed sub-2 V reset hold. |
Compared with MAX698CPA+ and TPS3808G18DBVR, the ADM698AR-REEL uniquely combines SOIC-16 packaging, guaranteed 1 V reset functionality, and factory-trimmed 4.65 V threshold - making it optimal for industrial SMT designs demanding deterministic low-VCC behavior without external tuning.
Availability
ADM698AR-REEL is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, and medical diagnostic instrumentation requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature extremes.
Supply support for ADM698AR-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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
The ADM698 belongs to Analog Devices' microprocessor supervisory IC product line, engineered specifically for deterministic power-on reset, brown-out detection, and system-level reliability in industrial and automotive embedded applications.
FAQ
What is the reset voltage threshold of the ADM698AR-REEL?
The ADM698AR-REEL features a precision 4.65 V nominal reset voltage threshold, with a guaranteed range of 4.5 V to 4.73 V across temperature and process variation. This threshold is factory-trimmed and includes 40 mV hysteresis to prevent false triggering from VCC noise or transients. The ADM698AR-REEL uses this threshold to assert RESET whenever VCC falls below the lower limit and deassert it only after VCC rises above the upper limit plus hysteresis.
Does the ADM698AR-REEL include a watchdog timer function?
No, the ADM698AR-REEL does not include a watchdog timer. It is the non-watchdog variant of the ADM698/ADM699 family. Only the ADM699 variants (e.g., ADM699AR-REEL) incorporate the WDI input and WDO output for software activity monitoring. The ADM698AR-REEL provides only power supply supervision - voltage monitoring and reset generation - with no watchdog-related pins or timing circuitry.
What is the minimum VCC level at which ADM698AR-REEL guarantees RESET assertion?
The ADM698AR-REEL guarantees RESET assertion (logic-low output) down to VCC = 1 V, verified at ISINK = 10 µA with output voltage ≤200 mV. This capability ensures the microprocessor remains held in a known reset state even during deep undervoltage conditions, such as battery depletion or severe power supply sag, preventing undefined operation or data corruption.
Which package type does the ADM698AR-REEL use, and what are its key mechanical features?
The ADM698AR-REEL uses a 16-lead SOIC (R-16) package per JEDEC MS-012AC, measuring 10.50 mm × 7.60 mm with 1.27 mm lead pitch. It features dual VCC (pins 3, 4) and quad GND (pins 1, 2, 15, 16) connections to minimize power/ground impedance. Thermal resistance is θJA = 110°C/W, supporting operation up to +85°C ambient without forced airflow.
Can the ADM698AR-REEL drive a microprocessor's active-high reset input directly?
Yes, the ADM698AR-REEL provides both active-low RESET (pin 13) and active-high RESET (pin 14) outputs in its SOIC-16 package. The active-high RESET is the logical inverse of the active-low version and is designed specifically for microprocessors requiring non-inverted reset signaling. No external inverter or pull-up resistor is needed - the pin drives high to ≥3.5 V (ISOURCE = 1 µA) and low to ≤0.4 V (ISINK = 1.6 mA).
ADM698AR-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
ADM698AR-REEL FAQ
1.How can I place an order for ADM698AR-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM698AR-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 ADM698AR-REEL reliable?
The price and inventory of ADM698AR-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM698AR-REEL is usually 5 days.
3.What payment methods are accepted for ADM698AR-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM698AR-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM698AR-REEL?
ADM698AR-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM698AR-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 ADM698AR-REEL?
For technical support, including ADM698AR-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM698AR-REEL requirements.
6.How does Aetrix verify that ADM698AR-REEL is sourced from the original manufacturer or authorized distributors?
All ADM698AR-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 ADM698AR-REEL meets industry standards.
7.What is the process for return or replacement of ADM698AR-REEL?
All ADM698AR-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM698AR-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 ADM698AR-REEL part is unused and in its original packaging.
Return procedure for ADM698AR-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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