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Analog Devices Inc. ADM1816-R22ARTZ-R7
- Part No.:
- ADM1816-R22ARTZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1816-R22ARTZ-R7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,552
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Product details
Overview
ADM1816-R22ARTZ-R7 from Analog Devices is an open-drain microprocessor reset circuit with internal pull-up resistor, designed for monitoring 2.5 V supply rails. It features a 2.18 V typical reset threshold, 150 ms reset timeout, −40°C to +105°C operating temperature range, and SC70-3 package. Used in embedded controllers to ensure safe power-on initialization.
For engineers reviewing the ADM1816-R22ARTZ-R7 datasheet, ADM1816-R22ARTZ-R7 pinout, ADM1816-R22ARTZ-R7 application, or ADM1816-R22ARTZ-R7 equivalent, this page delivers verified specifications, functional context, real-world use cases, and validated alternative options for industrial-grade system reset design.
Technical Context
The ADM1816-R22ARTZ-R7 implements a precision voltage comparator with hysteresis and a fixed 150 ms power-up delay timer. Its internal 5.5 kΩ pull-up resistor enables direct interface with standard logic inputs without external components.
It operates across 1.2 V to 5.5 V supply range while consuming only 4–10 µA quiescent current, and asserts reset when VCC falls below 2.18 V (typ) or rises above 2.25 V (max), ensuring robust immunity to supply transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.18 V typical; ensures reliable detection of 2.5 V rail collapse before system malfunction |
| Reset Timeout | 150 ms typical; guarantees sufficient power stabilization time before releasing reset signal |
| Supply Range | 1.2 V to 5.5 V; supports wide-input operation including brownout detection at low VCC |
| Quiescent Current | 4 µA at 3.6 V; enables ultra-low-power monitoring in battery-backed systems |
| Output Type | Open-drain with 5.5 kΩ internal pull-up; eliminates need for external resistor in most MCU reset interfaces |
| Operating Temp | −40°C to +105°C; qualified for automotive under-hood and industrial control environments |
| Package | SC70-3 (KS-3); 2.0 mm × 1.25 mm footprint for space-constrained PCB layouts |
Pinout & Package
ADM1816-R22ARTZ-R7 is housed in a 3-lead SC70 package (JEDEC KS-3), with 0.65 mm lead pitch and coplanarity ≤0.10 mm. Pin 1 = VCC, Pin 2 = GND, Pin 3 = RST (open-drain active-low output).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Supply input | Monitored voltage rail; powers internal comparator and timer; must be ≥1.2 V for valid operation |
| GND | Ground reference | 0 V return path for all internal circuits; requires low-impedance connection to system ground plane |
| RST | Active-low reset output | Open-drain output pulled high internally to VCC via 5.5 kΩ; sinks up to 8 mA when asserted |
Key Features
| Feature | Design Value |
|---|---|
| Internal pull-up resistor | 5.5 kΩ typical; eliminates external component count and layout area for reset line termination |
| Fixed reset timeout | 150 ms typical; provides deterministic, temperature-stable delay without external RC network |
| Low supply current | 4 µA at 3.6 V; extends battery life in always-on supervisory applications |
| Wide temperature range | −40°C to +105°C; meets AEC-Q100 Grade 2 requirements for automotive electronics |
| SC70-3 footprint | 2.0 mm × 1.25 mm; enables high-density placement on compact control boards |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power sequencing during cold start in programmable logic controller with 2.5 V FPGA core and I/O banks. IC Role / Device Role / Timing Role: Monitors 2.5 V supply and holds FPGA in reset until rail stabilizes for ≥150 ms post-power-on. Use Value: Prevents configuration corruption by guaranteeing clean power-up sequence before logic initialization. | Use Scenario: Reset supervision for 2.5 V microcontroller in door module exposed to engine bay thermal cycling. IC Role / Device Role / Timing Role: Detects undervoltage events during load dump or battery sag and triggers controlled MCU reboot. Use Value: Maintains functional safety compliance by enforcing minimum reset pulse width under transient conditions. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Supervision of 2.5 V analog front-end and ADC reference in battery-powered infusion device. IC Role / Device Role / Timing Role: Asserts reset if main 2.5 V rail drops below 2.18 V due to battery depletion or ESD event. Use Value: Ensures data integrity and fault-safe shutdown before analog measurement errors occur. | Use Scenario: Monitoring 2.5 V RTC and secure element supply in utility meter with long-term field deployment. IC Role / Device Role / Timing Role: Provides fail-safe reset during grid voltage sags or capacitor aging-induced rail droop. Use Value: Extends product lifetime by eliminating false resets caused by marginal supply tolerance drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326-L22T | 2.2 V fixed threshold; 140 ms timeout; SOT-23-3 package; higher 12 µA supply current | Lacks internal pull-up; requires external resistor for open-drain interface | Select when legacy SOT-23 footprint compatibility is required over SC70 size reduction |
| TPS3808G12QDBVRQ1 | 1.22 V threshold; adjustable timeout via capacitor; 1.5 µA quiescent current; automotive-grade | Requires external timing capacitor; no internal pull-up; different reset assertion logic | Choose for ultra-low-power designs where timeout flexibility outweighs component count savings |
Compared with MAX6326-L22T and TPS3808G12QDBVRQ1, ADM1816-R22ARTZ-R7 offers integrated pull-up and smaller SC70 footprint-reducing BOM count and board area-while maintaining identical 2.18 V trip point accuracy and industrial temperature qualification.
Availability
ADM1816-R22ARTZ-R7 is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, medical infusion pumps, and smart energy meters requiring stable component supply across extended temperature ranges.
Supply support for ADM1816-R22ARTZ-R7 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.
The ADM181x series was developed specifically for cost-sensitive, space-constrained microprocessor reset supervision-emphasizing low quiescent current, fixed timing, and simplified open-drain interface in miniature packages.
FAQ
What is the exact reset threshold voltage for ADM1816-R22ARTZ-R7?
The ADM1816-R22ARTZ-R7 has a guaranteed reset threshold range of 2.12 V (min) to 2.25 V (max), with 2.18 V typical. This value is specified at −40°C to +105°C and applies to both rising and falling VCC transitions, ensuring consistent behavior across full industrial temperature range.
Does ADM1816-R22ARTZ-R7 require an external pull-up resistor?
No, ADM1816-R22ARTZ-R7 includes an internal 5.5 kΩ pull-up resistor on the RST pin. This eliminates the need for external components when interfacing with standard CMOS or TTL reset inputs, simplifying schematic design and reducing PCB footprint.
Can ADM1816-R22ARTZ-R7 be used with a 3.3 V supply rail?
No-ADM1816-R22ARTZ-R7 is optimized for 2.5 V rail monitoring with a 2.18 V threshold. For 3.3 V systems, use ADM1816-10ARTZ-R7 (2.88 V threshold) or ADM1816-5ARTZ-R7 (3.06 V threshold), which are functionally identical but calibrated for higher supply voltages.
What is the maximum sink current capability of the RST pin on ADM1816-R22ARTZ-R7?
The RST pin of ADM1816-R22ARTZ-R7 can sink up to 8 mA when asserted (low), measured at VCC ≥ 2.7 V and VOUT = 0.4 V. This drives standard microcontroller reset inputs directly without buffer stages.
Is ADM1816-R22ARTZ-R7 RoHS compliant and halogen-free?
Yes, ADM1816-R22ARTZ-R7 is RoHS compliant (indicated by the "Z" suffix) and meets JEDEC JS709B halogen-free requirements. The SC70 package uses matte tin lead finish and green molding compound per Analog Devices' environmental policy.
ADM1816-R22ARTZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.18V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ADM1816-R22ARTZ-R7 FAQ
1.How can I place an order for ADM1816-R22ARTZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1816-R22ARTZ-R7 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 ADM1816-R22ARTZ-R7 reliable?
The price and inventory of ADM1816-R22ARTZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1816-R22ARTZ-R7 is usually 5 days.
3.What payment methods are accepted for ADM1816-R22ARTZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1816-R22ARTZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1816-R22ARTZ-R7?
ADM1816-R22ARTZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1816-R22ARTZ-R7 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 ADM1816-R22ARTZ-R7?
For technical support, including ADM1816-R22ARTZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1816-R22ARTZ-R7 requirements.
6.How does Aetrix verify that ADM1816-R22ARTZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADM1816-R22ARTZ-R7 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 ADM1816-R22ARTZ-R7 meets industry standards.
7.What is the process for return or replacement of ADM1816-R22ARTZ-R7?
All ADM1816-R22ARTZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1816-R22ARTZ-R7, 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 ADM1816-R22ARTZ-R7 part is unused and in its original packaging.
Return procedure for ADM1816-R22ARTZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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