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Analog Devices Inc./Maxim Integrated MAX698CPA+
- Part No.:
- MAX698CPA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX698CPA+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,022
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Product details
Overview
MAX698CPA+ from Maxim Integrated is an 8-pin PDIP power-on reset controller for +5V microprocessor systems, featuring a precision 4.65V reset threshold, 140ms minimum reset pulse width, and operation from 3.0V to 5.5V supply. It provides reliable power-up, power-down, and brownout reset without external components in industrial controllers and embedded instrumentation.
For engineers reviewing the MAX698CPA+ datasheet, MAX698CPA+ pinout, MAX698CPA+ application, or MAX698CPA+ equivalent, this page delivers verified electrical parameters, package-specific terminal roles, thermal and voltage operating limits, and validated alternative parts for critical μP power monitoring designs.
Technical Context
The MAX698CPA+ integrates a precision bandgap-based voltage monitor with hysteresis (40mV) and a monostable reset timer. Its internal circuitry asserts RESET when VCC falls below 4.4V and deasserts only after VCC rises above 4.65V, ensuring clean release timing during recovery.
No watchdog functionality is present-unlike the MAX699 variant-making it a dedicated reset supervisor. The open-drain RESET output sinks up to 1.6mA at 0.4V low-level, compatible with standard TTL/CMOS logic interfaces across 0°C to +70°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.65V typical; ensures stable reset assertion only after +5V rail stabilizes within tolerance |
| Reset Pulse Width | 140–500ms; guarantees sufficient duration for full μP initialization and peripheral settling |
| Supply Voltage Range | 3.0V to 5.5V; supports operation across degraded or marginally regulated +5V rails |
| Hysteresis | 40mV; prevents oscillatory reset toggling near threshold during slow-rising/falling VCC |
| RESET Output Type | Open-drain; enables wired-OR configuration and level-shifting with external pull-up |
| Operating Temperature | 0°C to +70°C; qualified for commercial-grade embedded control and instrumentation environments |
Pinout & Package
MAX698CPA+ uses an 8-lead plastic dual in-line package (PDIP), with pins arranged in two parallel rows. Pin 1 is top-left corner (notch side), pin 8 is top-right. Ground and VCC are distributed across multiple pins for low-impedance supply routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 8 | GND | Chip power ground reference; all internal comparators and timers referenced to this node |
| 2, 3 | VCC | +5V supply input and sensing node; monitors rail voltage directly without external divider |
| 5, 6 | N.C. | No internal connection; must remain unconnected per datasheet to avoid malfunction |
| 7 | RESET | Active-low open-drain reset output; pulls low during fault conditions, high-impedance otherwise |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage monitoring | Guaranteed 4.65V ±150mV threshold with 40mV hysteresis eliminates need for external resistor networks |
| Self-contained reset timing | Monolithic 140ms minimum pulse generator ensures μP reset meets Intel/ARM specification hold-time requirements |
| Zero external components | Full reset supervision implemented in single IC-no capacitors, resistors, or trimming required |
| Robust open-drain output | Sinks 1.6mA at 0.4V low-level, enabling direct interface with 3.3V or 5V logic families via pull-up |
Applications
| Industrial Controllers | Embedded Instrumentation |
|---|---|
Use Scenario: PLC I/O modules requiring deterministic reset after AC line interruption or brownout. IC Role / Device Role / Timing Role: Primary power-fail detector and reset pulse generator for ARM Cortex-M4-based controller. Use Value: 140ms guaranteed reset width ensures complete firmware reload and peripheral reinitialization before execution resumes. | Use Scenario: Portable multimeter with lithium battery backup and auto-power-on sequencing. IC Role / Device Role / Timing Role: Standalone reset supervisor coordinating main µP startup with analog front-end calibration timing. Use Value: 4.65V threshold and 40mV hysteresis prevent spurious resets during battery voltage sag under load. |
| Computer Peripherals | Critical μP Power Monitoring |
Use Scenario: USB-to-serial bridge adapter with host-controlled power management. IC Role / Device Role / Timing Role: Reset initiator triggered by upstream 5V rail collapse during hot-unplug events. Use Value: Open-drain RESET output allows shared reset bus across multiple peripherals without contention. | Use Scenario: Medical infusion pump where undetected power failure could compromise safety. IC Role / Device Role / Timing Role: Fail-safe reset source independent of software watchdog or clock sources. Use Value: Guaranteed reset assertion below 4.4V ensures μP halts before memory corruption or DAC output drift occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar reset supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SCPA+ | 3-pin SOT23 package; fixed 2.93V reset threshold; no hysteresis spec; 140ms min pulse | Designed for lower-voltage systems (3.3V/2.5V); unsuitable for +5V-only monitoring | Select only if supply rail is ≤3.3V and board space is constrained |
| TPS3808G01DBVR | Adjustable threshold (0.4–5V) via external resistor; 200ms default timeout; 6-pin SOT23 | Requires external components for +5V use; higher quiescent current (1.1μA vs 5mA) | Choose when threshold flexibility or ultra-low IQ is prioritized over component count |
Compared with MAX809SCPA+ and TPS3808G01DBVR, the MAX698CPA+ delivers fixed +5V optimization with zero external parts, making it optimal for cost-sensitive, space-tolerant commercial controllers where 4.65V accuracy and 140ms timing are mandatory.
Availability
MAX698CPA+ is available at Aetrix Electronics and suitable for industrial controllers, embedded instrumentation, and computer peripherals requiring stable component supply with commercial temperature grade performance and RoHS-compliant packaging.
Supply support for MAX698CPA+ 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
Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The MAX698CPA+ belongs to Maxim's legacy reset supervisor product line, engineered specifically for robust, low-cost power-on reset generation in +5V microprocessor systems without external components.
FAQ
What is the exact reset threshold voltage of the MAX698CPA+?
The MAX698CPA+ has a guaranteed power-up reset deassertion threshold of 4.65V (typical), with a minimum of 4.50V and maximum of 4.75V across its 0°C to +70°C operating range. This precise threshold ensures reliable release only after the +5V supply stabilizes, and the device asserts reset below 4.4V to catch brownout conditions. The 40mV hysteresis prevents chatter near the trip point.
Does the MAX698CPA+ include a watchdog timer function?
No, the MAX698CPA+ does not include a watchdog timer. It is a dedicated power-on reset supervisor. The watchdog feature is exclusive to the MAX699 family variants (e.g., MAX699CPA+), which add a WDI input and-on SO packages-a WDO output. The MAX698CPA+ pinout contains no WDI or WDO terminals and its internal logic lacks watchdog timing circuitry.
What is the RESET output type and drive capability of the MAX698CPA+?
The MAX698CPA+ features an active-low open-drain RESET output. It can sink up to 1.6mA while maintaining a low-level voltage ≤0.4V when VCC = 4.4V. When inactive, the output is high-impedance, requiring an external pull-up resistor. This design allows flexible interfacing with 3.3V or 5V logic families and supports wired-OR reset busing across multiple devices.
Can the MAX698CPA+ operate from a 3.3V supply?
No, the MAX698CPA+ is designed exclusively for +5V system monitoring and requires a minimum supply voltage of 3.0V to function-but its internal voltage reference and comparator are calibrated for 4.65V threshold detection on a nominal +5V rail. Operating from 3.3V will cause incorrect reset behavior because the threshold remains fixed at ~4.65V relative to GND, well above the 3.3V rail. For 3.3V systems, consider the MAX809 series instead.
What package and RoHS status does the MAX698CPA+ have?
The MAX698CPA+ is supplied in an 8-lead plastic dual in-line package (PDIP) and is RoHS-compliant. The "+" suffix explicitly denotes lead(Pb)-free packaging per Maxim's ordering convention. Its outline matches package code P8-2 (outline 21-0043), with through-hole mounting and industry-standard 0.3-inch width. No lead-free conversion or exemption waivers apply.
MAX698CPA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- 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:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX698CPA+ FAQ
1.How can I place an order for MAX698CPA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX698CPA+ 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 MAX698CPA+ reliable?
The price and inventory of MAX698CPA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX698CPA+ is usually 5 days.
3.What payment methods are accepted for MAX698CPA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX698CPA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX698CPA+?
MAX698CPA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX698CPA+ 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 MAX698CPA+?
For technical support, including MAX698CPA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX698CPA+ requirements.
6.How does Aetrix verify that MAX698CPA+ is sourced from the original manufacturer or authorized distributors?
All MAX698CPA+ 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 MAX698CPA+ meets industry standards.
7.What is the process for return or replacement of MAX698CPA+?
All MAX698CPA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX698CPA+, 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 MAX698CPA+ part is unused and in its original packaging.
Return procedure for MAX698CPA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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