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Analog Devices Inc./Maxim Integrated MAX8216CPD
- Part No.:
- MAX8216CPD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX8216CPD.pdf
- Description:
- IC SUPERVISOR MPU VOLT MONITOR
- Quantity:
- Payment:
- Shipping:
Inventory:539
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Product details
Overview
MAX8216CPD from Maxim Integrated is a precision quad +5V/−5V/+15V/−15V dedicated voltage monitor IC with one auxiliary comparator, open-drain outputs, built-in hysteresis, and internal 1.24V reference (±1% initial accuracy). It operates from 2.7V to 11V supply, draws ≤250µA over temperature, and targets microprocessor reset and multi-rail power supervision in industrial controllers and portable instruments.
For engineers reviewing the MAX8216CPD datasheet, MAX8216CPD pinout, MAX8216CPD application, or MAX8216CPD equivalent, key selection criteria include ±15V trip level accuracy (±1.5%), auxiliary comparator programmability for overvoltage/undervoltage detection, open-drain output compatibility with wire-OR logic, and PDIP-14 package suitability for prototyping and legacy industrial PCBs.
Technical Context
The MAX8216CPD integrates five comparators: four fixed-threshold comparators for +5V (±1.25% accuracy), −5V, +15V, and −15V (all ±1.5% accuracy), plus one auxiliary comparator with externally accessible noninverting input (DIN) and internal reference-connected inverting input. All outputs are open-drain, requiring external pull-ups.
Hysteresis is fully integrated-no external resistors needed-and provides 1.25–2.25% threshold hysteresis depending on rail. The internal 1.24V reference exhibits ±1% initial accuracy, <15ppm/°C tempco, and stable regulation down to VDD = 2.85V, enabling accurate trip-point derivation across temperature and supply variation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| +5V Trip Level Accuracy | ±1.25% - enables reliable microprocessor undervoltage reset at nominal 4.5V–4.65V window |
| ±15V Trip Level Accuracy | ±1.5% - supports precise monitoring of analog front-end or op-amp rails in industrial equipment |
| Supply Current | ≤250µA over temperature - allows battery-backed operation in portable instruments |
| Reference Voltage | 1.24V ±1% initial - serves as stable, low-drift basis for auxiliary comparator trip-point calculation |
| Operating Supply Range | 2.7V to 11V - accommodates wide-input DC-DC converters and brownout-tolerant systems |
| Comparator Response Time | 20µs @ 30mV overdrive - ensures timely fault detection in fast-transient power systems |
| Output Type | Open-drain - permits flexible pull-up to any logic rail and native wire-OR configuration for system-level fault aggregation |
Pinout & Package
MAX8216CPD is housed in a 14-pin plastic DIP (PDIP) package with 0.300" body width, 0.100" lead pitch, and through-hole mounting. Pin 1 is located at the left end of the top row when viewed from the top with notch or dot oriented left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VREF | Internal reference output | Provides 1.24V ±1% reference for auxiliary comparator and external circuitry; requires no load for stability |
| 2 GND | Analog ground | Reference node for +5V/−5V inputs; must be connected to PGND (Pin 8) for proper biasing |
| 3 +5V | +5V supply monitor input | Fixed-threshold comparator input; trips at 4.500V–4.657V (decreasing); ±1.25% accuracy |
| 4 −5V | −5V supply monitor input | Fixed-threshold comparator input; trips at −4.304V–−4.500V (decreasing); ±1.5% accuracy |
| 5 +15V | +15V supply monitor input | Fixed-threshold comparator input for MAX8216 only; trips at 12.904V–13.566V (decreasing) |
| 6 −15V | −15V supply monitor input | Fixed-threshold comparator input for MAX8216 only; trips at −12.904V–−13.566V (decreasing) |
| 7 DIN | Auxiliary comparator noninverting input | Programmable input for custom overvoltage/undervoltage detection using external resistor divider |
| 8 PGND | Power ground | Bypass node for VDD (Pin 14); connect 0.1µF capacitor directly between Pins 14 and 8 |
| 9 DOUT | Auxiliary comparator open-drain output | Active-low fault signal; requires external pull-up; supports time-delayed reset via RC network |
| 10–13 OUT1–OUT4 | Dedicated comparator open-drain outputs | OUT1 = +5V fault, OUT2 = −5V fault, OUT3 = +15V fault, OUT4 = −15V fault; all require pull-ups |
| 14 VDD | Positive supply input | Accepts 2.7V–11V; powers all comparators and reference; bypass to PGND (Pin 8) with 0.1µF |
Key Features
| Feature | Design Value |
|---|---|
| Five integrated comparators | Four fixed-rail (+5V/−5V/+15V/−15V) + one programmable auxiliary comparator eliminates need for discrete comparators and external references |
| Built-in hysteresis | 1.25–2.25% per comparator prevents noise-induced oscillation without external feedback resistors |
| Internal 1.24V reference | ±1% initial accuracy and <15ppm/°C drift enables stable trip-point generation across industrial temperature range |
| Open-drain outputs | Supports wired-OR fault-bus architecture and flexible logic-level interfacing (e.g., to 3.3V or 5V microcontrollers) |
| Low quiescent current | ≤250µA max over −40°C to +85°C allows use in always-on supervisory circuits with minimal battery drain |
Applications
| Microprocessor Reset System | Industrial Power Rail Monitoring |
|---|---|
|
Use Scenario: Supervising +5V, −5V, +15V, and −15V rails powering an embedded controller and analog signal chain in factory automation hardware. IC Role / Device Role / Timing Role: Dedicated comparator outputs flag individual rail faults; auxiliary comparator monitors VDD for self-supply undervoltage with 200ms reset hold-off. Use Value: Prevents erratic microprocessor behavior during power sequencing and ensures clean restart after brownout events. |
Use Scenario: Real-time monitoring of dual-polarity supplies in test equipment requiring guaranteed ±15V compliance before enabling high-voltage DACs. IC Role / Device Role / Timing Role: +15V and −15V comparators assert independent fault signals; hysteresis prevents chatter near trip thresholds during thermal drift. Use Value: Enables deterministic power-good assertion and avoids false triggers in noisy industrial environments. |
| Portable Instrument Battery Backup | Mobile Radio Power Management |
|
Use Scenario: Detecting failure of primary +5V/−5V rails in handheld spectrum analyzer while maintaining backup real-time clock operation. IC Role / Device Role / Timing Role: Low 250µA supply current allows continuous monitoring during sleep mode; open-drain outputs interface directly to low-power MCU GPIOs. Use Value: Extends battery life while preserving system integrity and enabling graceful shutdown upon rail collapse. |
Use Scenario: Ensuring stable ±15V amplifier rails in vehicular HF transceiver before RF power-up sequence begins. IC Role / Device Role / Timing Role: Auxiliary comparator configured as overvoltage detector on +15V rail; DOUT drives enable logic to prevent amplifier damage from overvoltage transients. Use Value: Adds hardware-level protection layer independent of firmware, meeting automotive reliability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8215CPD | Monitors ±12V instead of ±15V; identical pinout, reference, and comparator architecture | Suitable only where ±12V rails replace ±15V; not interchangeable without board-level voltage scaling | Select MAX8215CPD only for legacy ±12V systems; MAX8216CPD required for true ±15V monitoring |
| TPS3808G33DBVR | Single-channel 3.3V supervisor with adjustable delay; no multi-rail or ±15V capability; SOT-23-6 package | Lacks dedicated negative-rail monitoring and auxiliary comparator; intended for single-rail microcontroller reset only | Use TPS3808G33DBVR only for cost-sensitive, space-constrained 3.3V-only applications; not a functional substitute |
Compared with MAX8215CPD, MAX8216CPD provides higher positive/negative trip points essential for ±15V analog subsystems, while TPS3808G33DBVR offers lower cost and footprint but sacrifices rail count, polarity support, and programmability-making it unsuitable for direct replacement in multi-supply monitoring.
Availability
MAX8216CPD is available at Aetrix Electronics and suitable for industrial controllers, portable instruments, mobile radios, data-acquisition systems, and microprocessor reset circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX8216CPD 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 and mixed-signal ICs for industrial, medical, and communications applications, emphasizing high accuracy, low power, and robust performance.
The MAX8216CPD belongs to Maxim's microprocessor voltage monitor product line, engineered specifically for reliable, multi-rail power supervision in harsh environments where ±15V analog circuitry coexists with digital logic.
FAQ
What is the operating temperature range for MAX8216CPD?
The MAX8216CPD is specified for 0°C to +70°C ambient operation (Commercial grade). Its electrical characteristics-including ±15V trip accuracy, 1.24V reference stability, and 250µA max supply current-are guaranteed across this full range. For extended temperature applications, consider MAX8216EPD (−40°C to +85°C) or MAX8216MPD (−55°C to +125°C).
How does the auxiliary comparator in MAX8216CPD differ from the dedicated comparators?
The MAX8216CPD auxiliary comparator (DIN/DOUT) features an externally accessible noninverting input and internally tied inverting input to the 1.24V reference, enabling programmable overvoltage/undervoltage detection via resistor dividers. In contrast, the four dedicated comparators have fixed internal thresholds for +5V, −5V, +15V, and −15V rails and no external input flexibility.
Can MAX8216CPD monitor its own VDD supply?
Yes, the MAX8216CPD can monitor its own VDD supply using the +5V comparator (if VDD ≈ +5V) or the auxiliary comparator with a resistor divider. Figure 4 in the datasheet shows a validated circuit where the +5V comparator detects VDD undervoltage and the auxiliary comparator detects VDD overvoltage-both functioning reliably down to VDD = 0.8V.
What pull-up resistor value is recommended for MAX8216CPD open-drain outputs?
Maxim recommends ≥2.7kΩ pull-up resistors when pulled to VDD, but higher values (e.g., 100kΩ) are preferred to minimize supply current and reduce susceptibility to oscillation. Values below 2.7kΩ increase sink current demand and may destabilize the auxiliary comparator; always verify stability with layout and load conditions.
Is MAX8216CPD pin-compatible with MAX8215CPD?
Yes, MAX8216CPD is pin-compatible with MAX8215CPD in the same package (e.g., PDIP-14). Pin functions, supply requirements, reference output, and output drive characteristics are identical-the only difference is the internal trip thresholds for Pins 5/6 (+12V/−12V in MAX8215 vs. +15V/−15V in MAX8216), requiring no PCB change but verification of rail voltages.
MAX8216CPD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 5
- Voltage - Threshold:
- ±5V, ±15V, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- -
- Reset Timeout:
- 20µs Typical Propagation Delay
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MAX8216CPD FAQ
1.How can I place an order for MAX8216CPD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8216CPD 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 MAX8216CPD reliable?
The price and inventory of MAX8216CPD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8216CPD is usually 5 days.
3.What payment methods are accepted for MAX8216CPD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8216CPD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8216CPD?
MAX8216CPD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8216CPD 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 MAX8216CPD?
For technical support, including MAX8216CPD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8216CPD requirements.
6.How does Aetrix verify that MAX8216CPD is sourced from the original manufacturer or authorized distributors?
All MAX8216CPD 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 MAX8216CPD meets industry standards.
7.What is the process for return or replacement of MAX8216CPD?
All MAX8216CPD units undergo pre-shipment inspection (PSI). If there is an issue with MAX8216CPD, 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 MAX8216CPD part is unused and in its original packaging.
Return procedure for MAX8216CPD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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