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Analog Devices Inc. ADM706TARZ-REEL
- Part No.:
- ADM706TARZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADM706TARZ-REEL.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,665
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Product details
Overview
ADM706TARZ-REEL from Analog Devices is a 3.08 V precision microprocessor supervisory circuit in an 8-lead SOIC package, providing active-low reset output, 200 ms reset pulse width, 1.6 s watchdog timeout, and 1.25 V power-fail comparator for 3 V/3.3 V systems. It ensures reliable power-on, brownout, and software fault recovery in embedded controllers.
For engineers reviewing the ADM706TARZ-REEL datasheet, ADM706TARZ-REEL pinout, ADM706TARZ-REEL application, or ADM706TARZ-REEL equivalent, this page delivers verified specifications, functional block context, package-validated pin roles, real-world use cases, and two confirmed alternative parts with documented technical distinctions.
Technical Context
The ADM706TARZ-REEL integrates a precision voltage monitor (3.08 V threshold), debounced manual reset input (MR), independent watchdog timer (1.6 s timeout), and dedicated 1.25 V power-fail comparator (PFI/PFO). Its reset generator guarantees valid output down to VCC = 1 V.
All logic outputs-RESET, WDO, and PFO-are open-drain compatible with pull-up configurations; RESET remains asserted low during VCC < 3.08 V and holds for 200 ms after recovery. The watchdog clears on any WDI transition and resets during active reset assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08 V ±75 mV - precisely monitors 3.3 V supply rails for brownout detection |
| Reset Pulse Width | 200 ms typical - provides sufficient stabilization time for microprocessors at power-up |
| Watchdog Timeout | 1.6 s ±0.65 s - detects firmware hangs without requiring external timing components |
| Quiescent Current | 100 µA typical at VCC < 3.6 V - enables battery-backed operation in portable instruments |
| Power-Fail Threshold | 1.25 V ±50 mV - supports early warning of supply collapse via external resistive divider |
| VCC Validity Range | 3.15 V to 5.5 V operating, 1 V minimum for RESET assertion - ensures fail-safe behavior during deep undervoltage |
| Output Type | Active-low open-drain RESET - interfaces directly with standard microprocessor reset inputs |
Pinout & Package
ADM706TARZ-REEL is housed in an 8-lead SOIC_N (R-8) package per JEDEC MS-012-AA, with 1.27 mm lead pitch and 5.00 mm × 4.00 mm body dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MR | Debounced manual reset input | Internally pulled up with 70 µA; triggers 200 ms RESET when driven below 0.6 V |
| 2 VCC | Power supply input | Accepts 3.15–5.5 V; requires local 0.1 µF decoupling to GND |
| 3 GND | Ground reference | Common return path for all internal circuits and output sinks |
| 4 PFI | Power-fail comparator noninverting input | Monitors external supply via resistor divider; asserts PFO when <1.25 V |
| 5 PFO | Power-fail comparator output | Open-drain output signaling supply collapse; used for NMI or system shutdown |
| 6 WDI | Watchdog input | Edge-sensitive; clears 1.6 s timer on any high↔low transition; accepts 50 ns pulses |
| 7 RESET | Active-low reset output | Open-drain; held low while VCC < 3.08 V or MR active; 200 ms pulse after recovery |
| 8 WDO | Watchdog output | Open-drain; goes low on timeout or VCC undervoltage; resets only on WDI edge or VCC recovery |
Key Features
| Feature | Design Value |
|---|---|
| Precision 3.08 V reset threshold | Enables accurate monitoring of 3.3 V systems without external calibration |
| Guaranteed RESET validity down to VCC = 1 V | Maintains processor in known state during deep brownout or battery depletion |
| Integrated 1.25 V power-fail comparator | Allows early warning of supply collapse using simple resistor network on PFI |
| Debounced MR input with 70 µA pull-up | Eliminates need for external RC filter or Schmitt trigger on pushbutton reset |
| Independent watchdog timer with edge-triggered clear | Prevents false timeouts from noise or slow edges; immune to static WDI states |
Applications
| Industrial Controller Monitoring | Portable Instrument Power Management |
|---|---|
|
Use Scenario: PLC I/O modules powered from 3.3 V rail with battery backup during AC loss. IC Role / Device Role / Timing Role: Supervises main supply and triggers orderly shutdown via PFO interrupt before battery depletion. Use Value: Prevents data corruption by enabling firmware-controlled save-and-halt sequence within 1.25 V warning window. |
Use Scenario: Handheld test equipment with dual 3.3 V/5 V supplies and user-initiated reset. IC Role / Device Role / Timing Role: Provides 200 ms power-on reset and debounced front-panel MR input. Use Value: Eliminates external debounce circuitry and ensures deterministic boot across battery charge states. |
| Microprocessor Brownout Recovery | Embedded System Watchdog Enforcement |
|
Use Scenario: Automotive infotainment head unit experiencing transient 12 V supply dips. IC Role / Device Role / Timing Role: Detects 3.3 V regulator dropout and asserts RESET until stable for ≥200 ms. Use Value: Avoids partial execution or register corruption during marginal supply conditions. |
Use Scenario: Medical sensor node running safety-critical firmware with periodic task checks. IC Role / Device Role / Timing Role: Monitors WDI toggling; asserts WDO on 1.6 s stall to trigger NMI-based recovery. Use Value: Enforces software liveness without adding CPU overhead for timer management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX706TCSA+ | Same 3.08 V threshold, 200 ms reset, but 1.2 µA max quiescent current vs. 200 µA; no integrated PFI/PFO comparator | Lacks power-fail warning capability; requires external comparator for early shutdown signaling | Choose for ultra-low-power battery systems where PFI functionality is unnecessary |
| TPS3808G33DBVR | 3.3 V threshold (±0.5%), 200 ms reset, 1.6 µA quiescent current, but no watchdog or PFI/PFO functions | Provides only reset supervision; no watchdog or power-fail monitoring features | Choose when only basic reset generation is required and lowest possible current draw is critical |
Compared with MAX706TCSA+ and TPS3808G33DBVR, ADM706TARZ-REEL uniquely combines 3.08 V precision reset, 1.6 s watchdog, and 1.25 V power-fail comparator in one SOIC-8 device-enabling full-system supervision without supplemental ICs.
Availability
ADM706TARZ-REEL is available at Aetrix Electronics and suitable for industrial controllers, portable instrumentation, automotive infotainment, and medical sensor nodes requiring stable component supply and long-term lifecycle support.
Supply support for ADM706TARZ-REEL 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 ADM706 family was designed specifically for robust microprocessor supervision in 3 V/3.3 V embedded systems, integrating reset, watchdog, and power-fail detection to replace discrete solutions and improve system reliability.
FAQ
What is the exact reset threshold voltage for ADM706TARZ-REEL?
The ADM706TARZ-REEL has a nominal reset threshold of 3.08 V, with guaranteed limits of 3.00 V (min) and 3.15 V (max) over temperature and supply range. This value is factory-trimmed and applies specifically to the 'T' suffix variant, distinguishing it from the 2.63 V (R) and 2.93 V (S) versions in the same family.
Does ADM706TARZ-REEL include a watchdog timer function?
Yes, ADM706TARZ-REEL includes a fully integrated watchdog timer with a nominal timeout period of 1.6 seconds. The timer resets on any edge transition at the WDI pin and asserts the open-drain WDO output low upon timeout-providing hardware-enforced firmware liveness detection without external components.
What package type and lead count does ADM706TARZ-REEL use?
ADM706TARZ-REEL is supplied in an 8-lead SOIC_N (Small Outline Integrated Circuit, narrow body) package designated R-8 per JEDEC MS-012-AA, with 1.27 mm lead pitch and 5.00 mm × 4.00 mm footprint-identical to industry-standard SOIC-8 devices for drop-in PCB compatibility.
Can ADM706TARZ-REEL monitor a second power supply?
Yes, ADM706TARZ-REEL can monitor a secondary supply using its PFI input and PFO output. By connecting the additional supply through a resistive divider to PFI, the device generates a PFO low signal when that supply falls below the 1.25 V comparator threshold-enabling early warning or cascaded reset triggering.
Is ADM706TARZ-REEL pin-compatible with other ADM706 variants?
Yes, ADM706TARZ-REEL shares identical pinout and package with all ADM706P/R/S/T variants in SOIC-8 (R-8) form, including ADM706RARZ-REEL and ADM706SARZ-REEL. Only the reset threshold voltage differs between suffixes; all other electrical and functional characteristics-including MR, WDI, PFI, RESET, WDO, and PFO pin behavior-are identical.
ADM706TARZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.08V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 160ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADM706TARZ-REEL FAQ
1.How can I place an order for ADM706TARZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM706TARZ-REEL 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 ADM706TARZ-REEL reliable?
The price and inventory of ADM706TARZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM706TARZ-REEL is usually 5 days.
3.What payment methods are accepted for ADM706TARZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM706TARZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM706TARZ-REEL?
ADM706TARZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM706TARZ-REEL 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 ADM706TARZ-REEL?
For technical support, including ADM706TARZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM706TARZ-REEL requirements.
6.How does Aetrix verify that ADM706TARZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADM706TARZ-REEL 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 ADM706TARZ-REEL meets industry standards.
7.What is the process for return or replacement of ADM706TARZ-REEL?
All ADM706TARZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADM706TARZ-REEL, 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 ADM706TARZ-REEL part is unused and in its original packaging.
Return procedure for ADM706TARZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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