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Analog Devices Inc. ADM8710L2ARJZ-RL7
- Part No.:
- ADM8710L2ARJZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
ADM8710L2ARJZ-RL7.pdf
- Description:
- IC SUPERVISOR 4 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,962
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Product details
Overview
ADM8710L2ARJZ-RL7 from Analog Devices is a low-voltage, high-accuracy quad voltage supervisory circuit that monitors up to four system supply voltages-including factory-set 3.3 V (±5%) and 1.8 V (±2%) thresholds plus two adjustable inputs referenced to 0.62 V (±1.5%). It delivers a 50 ms typical reset timeout, open-drain active-low RESET output with internal 10 µA pull-up to IN2, and operates across −40°C to +85°C in telecom and embedded microprocessor systems.
For engineers reviewing the ADM8710L2ARJZ-RL7 datasheet, ADM8710L2ARJZ-RL7 pinout, ADM8710L2ARJZ-RL7 application, or ADM8710L2ARJZ-RL7 equivalent, this page provides verified pin functions, threshold accuracy data, reset timing behavior, SOT-23 package details, and real-world use cases for multi-rail power monitoring in space-constrained designs.
Technical Context
The ADM8710L2ARJZ-RL7 integrates two factory-trimmed UVLO comparators (for 3.3 V and 1.8 V rails) and two adjustable inputs using an internal 0.62 V reference with ±1.5% accuracy over temperature. Its reset logic asserts active-low when any monitored input falls below its threshold and holds RESET low for 35–70 ms after all inputs recover.
Powered directly from IN2, the device maintains valid RESET output down to IN1 or IN2 = 1 V and exhibits 60 ppm/°C threshold temperature coefficient and 0.3% hysteresis-ensuring robust immunity to supply glitches and ambient noise without external filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Timeout Period | 35–70 ms (typical 50 ms); ensures sufficient processor hold time during power-up or brownout recovery. |
| Threshold Accuracy (Adjustable) | ±1.5% over −40°C to +85°C; enables precise reset assertion for custom rail voltages via resistor dividers. |
| Threshold Accuracy (Factory-set) | ±2% for 3.3 V (3.01–3.13 V) and 1.8 V (1.705–1.76 V); matches standard LDO and regulator tolerances. |
| RESET Output Type | Open-drain with 10 µA internal pull-up to IN2; eliminates need for external pull-up in many logic interfaces. |
| Operating Temperature Range | −40°C to +85°C; supports industrial and telecom equipment deployment without derating. |
| Supply Voltage Range (IN2) | 1.2 V to 5.5 V (−40°C to +85°C); allows direct monitoring of low-voltage rails including 1.2 V and 1.8 V domains. |
| Input Current (IN2) | 55–115 µA at nominal 3.3 V; minimizes loading on monitored supplies while maintaining comparator stability. |
Pinout & Package
ADM8710L2ARJZ-RL7 is housed in a RoHS-compliant, lead-free 6-lead SOT-23 (RJ-6) package measuring 2.90 mm × 1.60 mm × 1.15 mm, optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1) | Adjustable monitor input | Accepts external resistor divider to set threshold based on 0.62 V internal reference; must be tied to >VTH if unused. |
| 2 (IN2) | Primary supply input & internal power source | Supplies device core; powers internal reference and comparators; RESET pull-up sourced from this pin. |
| 3 (IN3) | Factory-set 1.8 V monitor input | Dedicated comparator with −2% tolerance (1.705–1.76 V); designed for 1.8 V I/O or core rails. |
| 4 (IN4) | Adjustable monitor input | Second programmable input identical to IN1; supports dual custom rail monitoring. |
| 5 (GND) | Analog ground reference | Common return for all comparators and internal circuitry; requires low-impedance connection to system ground plane. |
| 6 (RESET) | Active-low open-drain reset output | Asserts low during fault; remains valid as long as IN1 or IN2 ≥ 1 V; compatible with 1.8 V, 3.3 V, or 5 V logic families. |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent voltage monitoring | Simultaneously supervises four distinct supply rails-two fixed (1.8 V/3.3 V) and two user-programmable-reducing BOM count and board area vs. discrete supervisors. |
| 0.62 V internal reference accuracy | ±1.5% over full temperature range enables <1% total threshold error for custom rails when combined with precision resistors. |
| Glitch-immune UVLO detection | Rejects transients ≤100 µs (per Figure 6), eliminating false resets caused by switching noise or brief supply dips. |
| Single-supply operation from IN2 | Eliminates need for auxiliary bias supply; simplifies power architecture and reduces component count in multi-rail systems. |
| Reset output validity down to 1 V | Ensures reliable reset signaling even during deep brownout conditions where IN1 or IN2 drops to 1 V. |
Applications
| Telecom Power Management | Multi-Rail Microprocessor Systems |
|---|---|
|
Use Scenario: Monitoring 3.3 V backplane, 1.8 V FPGA I/O, 1.2 V CPU core, and 0.9 V DDR3 VDDQ in a base station line card. IC Role / Device Role / Timing Role: Quad supervisor asserting unified RESET signal to halt boot sequence until all rails stabilize within spec. Use Value: Prevents partial initialization and latch-up by enforcing coordinated reset across four independent voltage domains. |
Use Scenario: Ensuring safe startup of an ARM-based SoC with separate 3.3 V peripheral, 1.8 V memory interface, 1.2 V core, and adjustable 0.85 V analog rail. IC Role / Device Role / Timing Role: Centralized voltage integrity checker triggering system-wide reset before firmware execution begins. Use Value: Eliminates need for four discrete supervisors and associated RC networks-reducing layout complexity and improving timing consistency. |
| Industrial Server Motherboards | Notebook Platform Power Sequencing |
|
Use Scenario: Supervising redundant 5 V standby, 3.3 V main, 1.8 V chipset, and adjustable 1.05 V GPU rail in a rack-mounted server. IC Role / Device Role / Timing Role: Fault-detection node feeding watchdog timer and BMC reset logic with validated rail status. Use Value: Enables early-failure detection and graceful shutdown before thermal or electrical overstress damages downstream components. |
Use Scenario: Coordinating power-up of CPU, GPU, display, and USB controller rails in ultra-thin notebook designs with tight space constraints. IC Role / Device Role / Timing Role: Compact, single-chip solution replacing legacy discrete supervisor + RC delay networks. Use Value: Saves >25 mm² PCB area and removes four external capacitors/resistors-critical for fanless, thermally sensitive platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6314US31D3+T | Triple monitor (3.08 V, 3.08 V, 3.08 V), fixed thresholds only; no adjustable inputs; 200 ms reset timeout. | Limited to identical-rail monitoring; unsuitable for mixed-voltage systems requiring 1.8 V + 3.3 V + custom rails. | Select when only three identical supply rails require supervision and longer reset hold time is acceptable. |
| TPS3808G33DBVR | Single-channel, 3.3 V supervisor with 200 ms timeout; adjustable threshold option available but no quad capability. | Requires three additional ICs to match ADM8710L2ARJZ-RL7's quad functionality-increasing cost and footprint. | Choose only for simple single-rail applications where board space and BOM count are secondary to procurement familiarity. |
Compared with MAX6314US31D3+T and TPS3808G33DBVR, the ADM8710L2ARJZ-RL7 uniquely combines factory-set 1.8 V/3.3 V monitoring with two 0.62 V-referenced adjustable inputs in one SOT-23 package-enabling true multi-rail supervision without design compromises.
Availability
ADM8710L2ARJZ-RL7 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial servers, and notebook computing applications requiring stable component supply, guaranteed lead-free compliance, and extended temperature support.
Supply support for ADM8710L2ARJZ-RL7 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 ADM8710L2ARJZ-RL7 belongs to Analog Devices' microprocessor supervisory product line, engineered specifically for reliable, space-efficient power-rail monitoring in multi-voltage embedded systems where accuracy, glitch immunity, and compact packaging are critical.
FAQ
What is the exact reset timeout period for ADM8710L2ARJZ-RL7?
The ADM8710L2ARJZ-RL7 features a reset timeout period specified as 35 ms (minimum), 50 ms (typical), and 70 ms (maximum) across −40°C to +85°C. This timeout begins after all monitored inputs rise above their respective thresholds and ensures the microprocessor remains held in reset long enough for stable clock and memory initialization before release.
Can ADM8710L2ARJZ-RL7 monitor a 1.2 V supply rail?
Yes, ADM8710L2ARJZ-RL7 can monitor a 1.2 V rail using either IN1 or IN4 with an external resistor divider configured around its 0.62 V internal reference. For example, a 1.2 V rail requires R1/R2 ≈ 0.94 to set VTH = 1.2 V, achieving ±1.5% accuracy over temperature when using 0.1% resistors.
Does ADM8710L2ARJZ-RL7 require an external pull-up resistor on the RESET pin?
No, ADM8710L2ARJZ-RL7 includes a 10 µA internal pull-up to IN2, eliminating the need for an external pull-up in most applications. An external resistor is only required if interfacing with a logic supply voltage outside IN2's range (e.g., 5 V logic driving a 3.3 V IN2), and even then, internal circuitry prevents reverse current flow into IN2.
What happens to the RESET output if IN2 drops below 1 V?
If IN2 falls below 1 V, the ADM8710L2ARJZ-RL7 no longer guarantees correct RESET output state-the device may cease functioning or assert indeterminate logic. The datasheet explicitly states RESET remains valid only while IN1 or IN2 ≥ 1 V, making IN2's minimum operating voltage a hard system-level constraint.
How does ADM8710L2ARJZ-RL7 handle short-duration supply glitches?
ADM8710L2ARJZ-RL7 rejects transients ≤100 µs (per Figure 6 in the datasheet), thanks to built-in comparator hysteresis (0.3% of VTH) and internal filtering. This prevents false resets during switching regulator noise or brief load-dump events without requiring external RC networks on monitored inputs.
ADM8710L2ARJZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 4
- Voltage - Threshold:
- 1.73V, 3.07V, Adj, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 35ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
ADM8710L2ARJZ-RL7 FAQ
1.How can I place an order for ADM8710L2ARJZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM8710L2ARJZ-RL7 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 ADM8710L2ARJZ-RL7 reliable?
The price and inventory of ADM8710L2ARJZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM8710L2ARJZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADM8710L2ARJZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM8710L2ARJZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM8710L2ARJZ-RL7?
ADM8710L2ARJZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM8710L2ARJZ-RL7 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 ADM8710L2ARJZ-RL7?
For technical support, including ADM8710L2ARJZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM8710L2ARJZ-RL7 requirements.
6.How does Aetrix verify that ADM8710L2ARJZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM8710L2ARJZ-RL7 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 ADM8710L2ARJZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADM8710L2ARJZ-RL7?
All ADM8710L2ARJZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM8710L2ARJZ-RL7, 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 ADM8710L2ARJZ-RL7 part is unused and in its original packaging.
Return procedure for ADM8710L2ARJZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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