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Analog Devices Inc./Maxim Integrated MAX701ESA+
- Part No.:
- MAX701ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX701ESA+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,479
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Product details
Overview
MAX701ESA+ from Maxim Integrated is a precision power-supply supervisory circuit for +5V microprocessor systems, providing dual active-low and active-high reset outputs with factory-trimmed 4.65V threshold, guaranteed valid reset down to VCC = 1V, and ≥200ms reset pulse width during power-up, power-down, and brownout conditions. It operates across –40°C to +85°C in an 8-pin narrow-SO package and includes a debounced manual-reset input.
For engineers reviewing the MAX701ESA+ datasheet, MAX701ESA+ pinout, MAX701ESA+ application, or MAX701ESA+ equivalent, this device supports robust system initialization in embedded controllers, industrial instrumentation, and critical µP power monitoring where deterministic reset timing and supply-voltage reliability are essential.
Technical Context
The MAX701ESA+ implements a voltage-monitoring comparator with internal 4.65V reference and built-in hysteresis (30mV typical), ensuring noise-immune reset assertion/deassertion. Its dual complementary RESET/RESET outputs drive standard TTL/CMOS logic levels with sink/source capability up to 16mA and 3.2mA respectively.
It features a debounced MR input with 0.7V threshold and internal 5µA pullup, enabling reliable pushbutton-initiated resets without external RC networks. The device requires no external components when used in +5V systems and guarantees correct output state for VCC as low as 1V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.50V–4.75V (factory-trimmed for +5V systems; ensures reset activation before µP malfunction) |
| Reset Pulse Width | 200–500ms (guarantees sufficient time for µP core and peripherals to fully initialize) |
| VCC Valid Range | 1.0V–15.5V (enables operation during deep brownout and compatibility with wide-input supplies) |
| Supply Current | 100–200µA (ultra-low quiescent draw preserves battery life in always-on monitoring) |
| Output Drive | RESET sinks 16mA @ 5V; RESET sources 3.2mA @ 4.25V (direct interface with µP reset pins without buffers) |
| Operating Temp | –40°C to +85°C (supports extended industrial environments without derating) |
| MR Input Threshold | 0.7V (compatible with open-drain or mechanical switch inputs without level-shifting) |
Pinout & Package
MAX701ESA+ is housed in an 8-pin narrow-SO (SOIC-8) package, RoHS-compliant with lead-free finish indicated by the '+' suffix. Pinout matches industry-standard SOIC-8 footprint (outline 21-0041, land pattern 90-0096).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MR | Manual Reset Input | Debounced active-low input with 5µA internal pullup; asserts both RESET/RESET on logic-low transition |
| 2 GND | Ground Reference | Primary return path for all internal comparators, outputs, and MR pullup current |
| 3 RESET | Active-Low Reset Output | Open-drain NMOS output; sinks up to 16mA; requires external pullup for µP-compatible logic-high |
| 4 RESET | Active-High Reset Output | Push-pull CMOS output; sources up to 3.2mA; directly drives µP reset pins requiring active-high assertion |
| 5 VCC | Power Supply Input | +5V supply input and monitored voltage source; valid from 1.0V to 15.5V |
| 6 N.C. | No Connection | Internally unconnected; must remain floating or tied to GND per layout guidelines |
| 7 N.C. | No Connection | Internally unconnected; must remain floating or tied to GND per layout guidelines |
| 8 N.C. | No Connection | Internally unconnected; must remain floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual Complementary Reset Outputs | Simultaneous active-low (open-drain) and active-high (push-pull) signals eliminate need for external inverters in mixed-logic systems |
| Factory-Trimmed 4.65V Threshold | ±150mV accuracy over temperature avoids calibration overhead and ensures consistent reset point across production batches |
| Guaranteed Reset Below 1V VCC | Ensures deterministic reset assertion even during catastrophic supply collapse-no undefined output states |
| Debounced Manual-Reset Input | Internal 5µA pullup and hardware debounce prevent contact bounce-induced spurious resets without external RC components |
| No External Components Required | Enables drop-in replacement of discrete reset circuits in +5V designs, reducing BOM count and PCB area |
Applications
| Industrial Controllers | Embedded Instrumentation |
|---|---|
Use Scenario: PLC I/O modules requiring fail-safe restart after AC line sags or backup battery depletion. IC Role / Device Role / Timing Role: Primary power-fail detector and system-wide reset initiator with 200ms minimum hold time. Use Value: Prevents partial register writes and firmware corruption during unstable VCC transitions. | Use Scenario: Portable multimeters and data loggers operating from coin-cell or rechargeable batteries. IC Role / Device Role / Timing Role: Low-power supply monitor that asserts reset before µP enters undefined state at end-of-life battery voltage. Use Value: Extends usable battery life by enabling clean shutdown instead of erratic behavior near cutoff. |
| Server Management Cards | Medical Diagnostic Equipment |
Use Scenario: BMC (Baseboard Management Controller) subsystems needing independent reset coordination during hot-swap PSU events. IC Role / Device Role / Timing Role: Dual-output supervisor synchronizing host processor and peripheral FPGA reset sequences. Use Value: Eliminates race conditions between CPU and co-processor initialization via simultaneous RESET/RESET assertion. | Use Scenario: Ultrasound front-end processors where power integrity directly impacts signal fidelity and patient safety compliance. IC Role / Device Role / Timing Role: Critical power-good monitor enforcing mandatory reset before analog acquisition chain powers up. Use Value: Meets IEC 62304 Class C software safety requirements by guaranteeing deterministic boot state under all supply fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G33DBVR | Single active-low reset output; 3.3V fixed threshold; 200ms min pulse; 1.8–6.0V VCC range | Lacks complementary RESET output and manual reset input; optimized for 3.3V systems only | Select when only one reset polarity is needed and VCC is strictly 3.3V; not suitable for +5V legacy µP interfaces requiring active-high reset |
| ADM6713ARZ-REEL | Single active-low reset; 4.63V threshold; 240ms min pulse; includes watchdog timer and power-fail comparator | Includes watchdog functionality absent in MAX701ESA+; no manual reset debounce or dual outputs | Choose when system-level watchdog supervision is required alongside reset; avoid if dual-output timing coordination or MR simplicity is critical |
Compared with TPS3808G33DBVR and ADM6713ARZ-REEL, the MAX701ESA+ uniquely delivers synchronized complementary reset signaling and integrated MR debounce in a single +5V-optimized device-enabling simpler, more deterministic reset architecture for legacy microprocessor platforms.
Availability
MAX701ESA+ is available at Aetrix Electronics and suitable for industrial controllers, embedded instrumentation, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX701ESA+ 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 high-performance analog and mixed-signal ICs for industrial, communications, computing, and consumer applications.
The MAX700/MAX701/MAX702 family was engineered specifically for cost-sensitive, space-constrained µP systems needing guaranteed reset behavior across voltage transients and temperature extremes-without external passive components.
FAQ
What is the reset threshold voltage for MAX701ESA+?
The MAX701ESA+ features a factory-trimmed reset threshold of 4.65V, with guaranteed limits of 4.50V (min) and 4.75V (max) across its full operating temperature range (–40°C to +85°C). This threshold applies to the internal VCC monitoring circuit when CTL is grounded, and it ensures reliable reset assertion before most +5V microprocessors enter an undefined operational state.
Does MAX701ESA+ require external components for basic +5V operation?
No, the MAX701ESA+ requires no external components for standard +5V power-supply monitoring. Its internal reference, comparator, and output drivers are fully self-contained. Only an external pullup resistor on the open-drain RESET pin is needed for proper logic-high level-no capacitors, resistors, or trimming potentiometers are necessary, simplifying design and reducing BOM cost.
Can MAX701ESA+ be used with microprocessors requiring active-high reset inputs?
Yes, the MAX701ESA+ provides a dedicated active-high RESET output (Pin 4) that sources up to 3.2mA at VCC – 0.4V, making it directly compatible with µP reset pins requiring asserted-high logic. Unlike many single-output supervisors, MAX701ESA+ eliminates the need for external inverters or level translators in mixed-logic systems.
What is the minimum VCC voltage at which MAX701ESA+ guarantees correct reset output state?
The MAX701ESA+ guarantees correct RESET/RESET output state for VCC voltages as low as +1.0V-verified across temperature and process corners. This ensures deterministic behavior during severe brownout conditions where other supervisors may produce invalid or oscillating outputs, preserving system integrity in critical failure modes.
Is the manual reset input (MR) on MAX701ESA+ debounced internally?
Yes, the MR input on MAX701ESA+ includes hardware debounce circuitry and an internal 5µA pullup current source. This allows direct connection to mechanical pushbuttons without external RC filters, preventing contact bounce from causing multiple or unintended reset assertions-a key reliability feature for field-deployed equipment.
MAX701ESA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 200ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX701ESA+ FAQ
1.How can I place an order for MAX701ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX701ESA+ 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 MAX701ESA+ reliable?
The price and inventory of MAX701ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX701ESA+ is usually 5 days.
3.What payment methods are accepted for MAX701ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX701ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX701ESA+?
MAX701ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX701ESA+ 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 MAX701ESA+?
For technical support, including MAX701ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX701ESA+ requirements.
6.How does Aetrix verify that MAX701ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX701ESA+ 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 MAX701ESA+ meets industry standards.
7.What is the process for return or replacement of MAX701ESA+?
All MAX701ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX701ESA+, 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 MAX701ESA+ part is unused and in its original packaging.
Return procedure for MAX701ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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