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Analog Devices Inc. ADM698ANZ
- Part No.:
- ADM698ANZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ADM698ANZ.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:240
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Product details
Overview
ADM698ANZ from Analog Devices is a microprocessor supervisory circuit that monitors +5 V power supply integrity, asserts active-low RESET during power-up/down and brown-out events (4.65 V threshold), guarantees RESET functionality down to VCC = 1 V, delivers 140–280 ms reset pulse width, and operates across –40°C to +85°C in an 8-pin plastic DIP package for embedded controller reset management.
For engineers reviewing the ADM698ANZ datasheet, ADM698ANZ pinout, ADM698ANZ application, or ADM698ANZ equivalent, this page provides verified functional identity, validated reset timing and voltage thresholds, confirmed DIP-8 package mapping, real-world use cases in automotive and industrial controllers, and two documented alternative supervisory ICs with explicit technical distinctions.
Technical Context
The ADM698ANZ implements a precision bandgap-based voltage detector with 40 mV hysteresis to reject VCC transients, and an internal monostable circuit that guarantees minimum 140 ms RESET assertion after VCC rises above 4.65 V. It lacks watchdog functionality-unlike the ADM699-making it a dedicated power-fail monitor without WDI or WDO pins.
Its RESET output is open-drain compatible with 1.6 mA sink capability at 4.4 V, and remains functional even when VCC drops to 1 V (output voltage ≤200 mV at 10 µA sink). The device requires no external components beyond a recommended 0.1 µF VCC bypass capacitor for noise immunity.
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) - precisely tracks 5 V rail; triggers RESET when VCC falls below this level to prevent unstable µP operation. |
| Reset Active Time | 140–280 ms - ensures sufficient processor hold time during power transitions and eliminates chatter during marginal VCC recovery. |
| Supply Current | 0.6 mA (typ) - enables low-power system monitoring without significant load on the 5 V rail. |
| RESET Output Sink | 1.6 mA @ 4.4 V - drives standard TTL/CMOS reset inputs directly; supports pull-up to 5 V or 3.3 V logic levels. |
| Min VCC for RESET | 1 V - guarantees reliable reset assertion during deep brown-out or controlled power-down sequences. |
| Reset Hysteresis | 40 mV - prevents oscillation near threshold due to noise or ripple on VCC. |
Pinout & Package
ADM698ANZ 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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | +5 V power supply input; must be decoupled with 0.1 µF ceramic capacitor to GND. |
| 2 | GND | Ground reference for all internal circuitry and RESET output. |
| 3 | RESET | Active-low open-drain reset output; sinks current to hold µP reset line low during fault conditions. |
| 4 | NC | No connect - internally unconnected; must remain floating or grounded per layout guidelines. |
| 5 | NC | No connect - internally unconnected; no external connection required. |
| 6 | NC | No connect - internally unconnected; not used in ADM698 variant. |
| 7 | GND | Secondary ground pin - electrically tied to Pin 2; improves noise immunity in high-noise environments. |
| 8 | VCC | Second +5 V supply pin - electrically tied to Pin 1; reduces IR drop and enhances supply stability. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RESET at VCC = 1 V | Ensures fail-safe microprocessor shutdown during deep undervoltage, preventing undefined state or latch-up. |
| Precision 4.65 V Threshold | Matches standard +5 V ±5% supply tolerance, eliminating need for external resistor dividers or calibration. |
| 40 mV Reset Hysteresis | Rejects short-duration VCC dips and noise spikes, avoiding spurious resets in electrically noisy industrial settings. |
| 140–280 ms Reset Pulse Width | Meets JEDEC JESD8-12B and Intel 80x86 reset timing requirements without external RC timing components. |
| Low 0.6 mA Quiescent Current | Minimizes standby power draw in battery-backed or energy-sensitive applications such as automotive ECUs. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Mainboard |
|---|---|
|
Use Scenario: Monitors 5 V supply to MCU during cold cranking, where battery voltage may dip to 6–8 V causing regulator output sag. IC Role / Device Role / Timing Role: Power-fail detector and reset generator ensuring deterministic MCU restart after voltage recovery. Use Value: Prevents ECU lockup or erratic behavior during transient brown-outs by asserting RESET until VCC stabilizes above 4.65 V for ≥140 ms. |
Use Scenario: Provides supervised reset for ARM Cortex-M7-based controller during AC line interruption or surge events. IC Role / Device Role / Timing Role: Standalone reset supervisor with guaranteed low-VCC operation and hysteresis-filtered threshold detection. Use Value: Eliminates need for discrete comparator + timer circuit, reducing BOM count while meeting IEC 61000-4-11 immunity requirements. |
| Medical Infusion Pump Controller | Rack-Mounted Telecom Shelf Manager |
|
Use Scenario: Ensures safe shutdown and restart of safety-critical pump motor control logic during mains failure or backup battery transition. IC Role / Device Role / Timing Role: Fail-safe reset source with 1 V operational floor, enabling controlled state preservation before power loss. Use Value: Maintains RESET assertion down to 1 V, allowing firmware to save critical parameters to nonvolatile memory before complete power collapse. |
Use Scenario: Supervises 5 V auxiliary rail powering shelf-level FPGA configuration and hot-swap controllers. IC Role / Device Role / Timing Role: High-reliability reset generator with thermal-stable threshold (±0.5% over –40°C to +85°C). Use Value: Delivers consistent reset timing across temperature extremes, avoiding false resets in thermally cycled telecom chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX698CPA+ | Identical 4.65 V threshold and 140–280 ms reset timeout; higher 2.5 mA max supply current; no 1 V RESET guarantee. | Lacks guaranteed RESET functionality below 2.5 V - unsuitable for deep brown-out recovery scenarios. | Select MAX698CPA+ only if legacy footprint compatibility is required and VCC never drops below 2.5 V. |
| TPS3808G33DBVR | Adjustable threshold (via external resistor); 3.3 V fixed option available; 200 ms typical reset delay; 1.5 µA quiescent current. | Requires external resistor network for 4.65 V setting; optimized for ultra-low-power 3.3 V systems, not 5 V legacy designs. | Choose TPS3808G33DBVR only when redesigning for 3.3 V domains or requiring programmable reset thresholds. |
Compared with MAX698CPA+ and TPS3808G33DBVR, the ADM698ANZ uniquely combines guaranteed 1 V reset operation, fixed 4.65 V accuracy, and DIP-8 through-hole compatibility-making it irreplaceable in field-deployed 5 V industrial controllers requiring robust brown-out resilience without layout changes.
Availability
ADM698ANZ is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC mainboards, medical infusion pump controllers, and rack-mounted telecom shelf managers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADM698ANZ 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 ADM698/ADM699 family was designed specifically for reliable, low-component-count power supervision in 5 V microprocessor systems-emphasizing brown-out immunity, wide operating voltage range, and guaranteed reset assertion at ultra-low VCC.
FAQ
What is the primary function of the ADM698ANZ?
The ADM698ANZ is a dedicated microprocessor supervisory circuit that monitors the +5 V VCC supply and generates a precise, hysteresis-stabilized active-low RESET signal during power-up, power-down, and brown-out conditions. Unlike the ADM699, the ADM698ANZ does not include watchdog functionality-its sole role is voltage monitoring and reset generation. It guarantees RESET assertion down to VCC = 1 V and delivers a minimum 140 ms reset pulse width, making it ideal for safety-critical 5 V embedded systems.
Does the ADM698ANZ support watchdog timer functionality?
No, the ADM698ANZ does not support watchdog timer functionality. Watchdog input (WDI) and watchdog output (WDO) features are exclusive to the ADM699 variant. The ADM698ANZ contains only VCC monitoring, reset generation, and the RESET output pin. Its functional block diagram and pin configuration confirm absence of WDI or WDO terminals. For watchdog capability, the ADM699AR or ADM699AN must be selected instead.
What package type is used for the ADM698ANZ?
The ADM698ANZ uses an 8-pin plastic dual in-line package (DIP), designated N-8 in Analog Devices' ordering guide. This through-hole package has 0.3 inch lead spacing, 0.1 inch pin pitch, and is RoHS-compliant. It differs from SOIC (R-16) and Cerdip (Q-8) variants-only the N-8 version carries the "ANZ" suffix. Pin 1 is identified by a notch or dot, and Pins 1 and 8 are both VCC, while Pins 2 and 7 are both GND for improved supply integrity.
What is the minimum VCC voltage at which ADM698ANZ can assert RESET?
The ADM698ANZ guarantees RESET assertion down to VCC = 1 V, with RESET output voltage ≤200 mV when sinking 10 µA. This is explicitly specified in the datasheet's "RESET Output Voltage (VCC = 1 V)" parameter row. At this voltage, the internal voltage detector remains functional and the open-drain RESET output pulls low reliably-enabling controlled microprocessor shutdown during severe brown-out or controlled power-down sequences where other supervisors would release reset prematurely.
How does the ADM698ANZ differ from the MAX698 in practical design use?
The ADM698ANZ is positioned as a superior upgrade to the MAX698, with identical pinout and core specifications but enhanced performance: it guarantees RESET functionality at VCC = 1 V (MAX698 only guarantees down to 2.5 V), offers tighter reset threshold accuracy (±1.5% vs. ±2.5%), and specifies full temperature-range operation (–40°C to +85°C) without derating. These differences make the ADM698ANZ more suitable for automotive and industrial applications demanding deeper brown-out resilience and wider thermal stability than the legacy MAX698 supports.
ADM698ANZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
ADM698ANZ FAQ
1.How can I place an order for ADM698ANZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM698ANZ 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 ADM698ANZ reliable?
The price and inventory of ADM698ANZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM698ANZ is usually 5 days.
3.What payment methods are accepted for ADM698ANZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM698ANZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM698ANZ?
ADM698ANZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM698ANZ 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 ADM698ANZ?
For technical support, including ADM698ANZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM698ANZ requirements.
6.How does Aetrix verify that ADM698ANZ is sourced from the original manufacturer or authorized distributors?
All ADM698ANZ 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 ADM698ANZ meets industry standards.
7.What is the process for return or replacement of ADM698ANZ?
All ADM698ANZ units undergo pre-shipment inspection (PSI). If there is an issue with ADM698ANZ, 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 ADM698ANZ part is unused and in its original packaging.
Return procedure for ADM698ANZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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