My Inquiry
My Account
Analog Devices Inc. ADM8322WC26ARJZR7
- Part No.:
- ADM8322WC26ARJZR7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
ADM8322WC26ARJZR7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,771
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADM8322WC26ARJZR7 from Analog Devices is a supervisory circuit with manual reset input and open-drain active-low reset output, designed for microprocessor voltage monitoring in automotive and industrial systems. It features a 2.63 V reset threshold (±1.5% over −40°C to +125°C), 140 ms minimum reset timeout, and operates from 0.9 V to 5.5 V supply with only 10 µA typical supply current.
For engineers reviewing the ADM8322WC26ARJZR7 datasheet, ADM8322WC26ARJZR7 pinout, ADM8322WC26ARJZR7 application, or ADM8322WC26ARJZR7 equivalent, this device supports robust brownout detection, push-button reset initiation, and failsafe system recovery in space-constrained SOT-23 designs requiring AEC-Q100-aligned reliability.
Technical Context
The ADM8322WC26ARJZR7 implements undervoltage supervision via an internal factory-trimmed voltage divider, asserting reset when VCC falls below 2.63 V (±1.5% over full temperature range). Its manual reset input (MR) includes a 75 kΩ internal pull-up and 100 ns glitch rejection, enabling reliable external reset initiation without external components.
This variant lacks watchdog functionality (N/A per Ordering Guide), uses an open-drain RESET output requiring external pull-up, and guarantees valid reset assertion down to VCC = 0.9 V. It is qualified for automotive applications (W-grade) and specified across −40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63 V ±1.5% (−40°C to +125°C); ensures stable brownout detection for 2.7 V–3.3 V rail monitoring |
| Reset Timeout | 140 ms minimum; provides sufficient hold time for processor initialization after power stabilization |
| Supply Voltage Range | 0.9 V to 5.5 V; enables operation during deep brownout and compatibility with 1.8 V–5 V systems |
| Supply Current | 10 µA typical at 3.6 V; supports ultra-low-power portable and battery-backed applications |
| Operating Temperature | −40°C to +125°C; meets automotive under-hood and industrial control environment requirements |
| Package | 5-lead SOT-23 (RJ-5); surface-mount footprint compatible with high-density PCB layouts |
| Reset Output Type | Active-low open-drain; allows wired-OR configuration and level translation with external pull-up |
Pinout & Package
ADM8322WC26ARJZR7 is housed in a 5-lead SOT-23 (RJ-5) package with 0.95 mm pitch, 2.9 mm × 1.6 mm body, and 1.1 mm max height - optimized for compact, thermally constrained designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-low open-drain reset output; requires external pull-up resistor (e.g., 10 kΩ) to VCC or higher logic rail |
| 2 | GND | Ground reference for all internal circuits and reset timing; must be low-impedance connection |
| 3 | RESET | Active-high push-pull reset output; driven high during reset assertion, low otherwise; no external pull required |
| 4 | MR | Manual reset input (active low); internally pulled up to ~75 kΩ; accepts push-button switch to GND |
| 5 | VCC | Monitored supply voltage input; powers device and serves as reference for reset threshold detection |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | W-grade variant qualified per AEC-Q100 for infotainment and body control modules |
| Reset threshold accuracy | ±1.5% over −40°C to +125°C ensures consistent trip point across thermal extremes |
| Dual reset outputs | Simultaneous active-low open-drain and active-high push-pull outputs simplify interface to diverse MCU reset inputs |
| Glitch-immune MR input | 100 ns noise rejection on manual reset pin eliminates false triggers from EMI or switch bounce |
| Low-voltage operation | Valid reset assertion down to VCC = 0.9 V enables fail-safe behavior during severe brownout conditions |
Applications
| Automotive Infotainment Systems | Industrial PLC Controllers |
|---|---|
Use Scenario: Power sequencing and fault recovery in head-unit MCUs exposed to wide battery voltage swings (6 V–16 V). IC Role / Device Role / Timing Role: Supervises 3.3 V domain, asserts dual reset signals on undervoltage or user-initiated reset, holds reset for 140 ms minimum. Use Value: Prevents corrupted firmware execution during cold-crank events by guaranteeing clean reset before boot code execution. |
Use Scenario: Reliable restart of programmable logic controllers after AC/DC converter output sag during motor startup. IC Role / Device Role / Timing Role: Monitors 2.63 V reference rail derived from regulated 3.3 V supply; triggers reset on dropout or front-panel button press. Use Value: Eliminates need for external RC timing networks and discrete reset ICs, reducing BOM count and board area. |
| Medical Diagnostic Equipment | Smart Energy Meters |
Use Scenario: Ensuring deterministic boot state in portable ultrasound processors operating from Li-ion batteries. IC Role / Device Role / Timing Role: Provides 2.63 V reset threshold aligned with low-voltage LDO output; delivers active-high and open-drain reset to separate subsystems. Use Value: Enables simultaneous reset of ARM core and FPGA fabric while maintaining isolation between reset domains. |
Use Scenario: Maintaining data integrity during grid voltage dips in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: Supervises backup 3.3 V rail feeding real-time clock and nonvolatile memory; asserts reset if VCC drops below 2.63 V for >140 ms. Use Value: Guarantees EEPROM write completion before power loss by extending reset hold time beyond typical brownout duration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADM8322WB26ARJZRL7 | Same reset threshold (2.63 V) and timeout (20 ms), but supplied in tape-and-reel (3,000 pcs) vs. cut tape (3,000 pcs); identical electrical specs. | Identical functional role; differs only in packaging format (REEL vs. R7 suffix denotes standard reel). | Select ADM8322WB26ARJZRL7 for high-volume automated assembly where reel packaging is preferred. |
| MAX6326LT26D3+T | 2.63 V reset threshold, 140 ms timeout, open-drain output, but no active-high push-pull output; 1.6 µA max quiescent current. | Lacks dual-output capability; suited for simpler single-reset-line systems where active-high output is not required. | Choose MAX6326LT26D3+T when board space is critical and only one reset signal type is needed. |
Compared with ADM8322WC26ARJZR7, ADM8322WB26ARJZRL7 offers identical supervision performance in alternate packaging, while MAX6326LT26D3+T reduces power consumption but sacrifices dual-output flexibility - making it suitable only for minimal-reset architectures.
Availability
ADM8322WC26ARJZR7 is available at Aetrix Electronics and suitable for automotive infotainment, industrial PLC controllers, and smart energy meter applications requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for ADM8322WC26ARJZR7 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.
The ADM83xx family was engineered specifically for automotive and industrial microprocessor supervision, delivering precision voltage monitoring, manual reset, and configurable timing in miniature SOT-23 packages.
FAQ
What is the reset threshold voltage of the ADM8322WC26ARJZR7?
The ADM8322WC26ARJZR7 has a nominal reset threshold of 2.63 V, with tolerance of ±1.5% over the full operating temperature range (−40°C to +125°C). This value is factory-trimmed and verified per the Ordering Guide; it is not adjustable and applies specifically to the ADM8322WC26ARJZR7 variant.
Does the ADM8322WC26ARJZR7 include a watchdog timer function?
No, the ADM8322WC26ARJZR7 does not include a watchdog timer. As confirmed in the Ordering Guide and Device Model Options table, ADM8322 variants (including ADM8322WC26ARJZR7) are designated "No" for watchdog functionality. Watchdog capability is present only in ADM8316/ADM8318/ADM8320/ADM8321 models.
What are the key differences between the RESET and RESET pins on the ADM8322WC26ARJZR7?
The ADM8322WC26ARJZR7 provides two independent reset outputs: Pin 1 (RESET) is an active-low open-drain output requiring an external pull-up resistor, while Pin 3 (RESET) is an active-high push-pull output that drives high during reset and low otherwise. This dual-output architecture supports interfacing with multiple MCU reset input types without additional logic.
How is the manual reset input (MR) implemented on the ADM8322WC26ARJZR7?
The MR pin (Pin 4) on the ADM8322WC26ARJZR7 is an active-low input with a built-in 75 kΩ internal pull-up resistor. Driving MR low for >1 µs initiates a reset pulse lasting the full 140 ms timeout period. The pin rejects glitches <100 ns, and no external debounce components are required for basic push-button use.
Is the ADM8322WC26ARJZR7 suitable for automotive applications?
Yes, the ADM8322WC26ARJZR7 is explicitly qualified for automotive applications. The "W" in the part number denotes AEC-Q100 qualification, and its −40°C to +125°C operating range, robust ESD protection, and production flow meet automotive reliability requirements for infotainment and body electronics systems.
ADM8322WC26ARJZR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Watchdog Circuit
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- Output:
- Open Drain, Push-Pull
- Reset:
- Active High/Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
ADM8322WC26ARJZR7 FAQ
1.How can I place an order for ADM8322WC26ARJZR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM8322WC26ARJZR7 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 ADM8322WC26ARJZR7 reliable?
The price and inventory of ADM8322WC26ARJZR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM8322WC26ARJZR7 is usually 5 days.
3.What payment methods are accepted for ADM8322WC26ARJZR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM8322WC26ARJZR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM8322WC26ARJZR7?
ADM8322WC26ARJZR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM8322WC26ARJZR7 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 ADM8322WC26ARJZR7?
For technical support, including ADM8322WC26ARJZR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM8322WC26ARJZR7 requirements.
6.How does Aetrix verify that ADM8322WC26ARJZR7 is sourced from the original manufacturer or authorized distributors?
All ADM8322WC26ARJZR7 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 ADM8322WC26ARJZR7 meets industry standards.
7.What is the process for return or replacement of ADM8322WC26ARJZR7?
All ADM8322WC26ARJZR7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM8322WC26ARJZR7, 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 ADM8322WC26ARJZR7 part is unused and in its original packaging.
Return procedure for ADM8322WC26ARJZR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADM8322WC26ARJZR7 Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
