My Inquiry
My Account
Analog Devices Inc. ADM1815-R22ARTZ-R7
- Part No.:
- ADM1815-R22ARTZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1815-R22ARTZ-R7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,404
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADM1815-R22ARTZ-R7 from Analog Devices is an active-low, open-drain microprocessor reset circuit with internal pull-up resistor, designed for monitoring 2.18 V (typical) supply rails in space-constrained embedded systems. It delivers 150 ms reset timeout, 2.12–2.25 V trip range, and operates across −40°C to +105°C in a 3-lead SOT-23 package. Used in automotive ECUs and industrial controllers requiring reliable power-on initialization.
For engineers reviewing the ADM1815-R22ARTZ-R7 datasheet, ADM1815-R22ARTZ-R7 pinout, ADM1815-R22ARTZ-R7 application, or ADM1815-R22ARTZ-R7 equivalent, key selection criteria include reset threshold accuracy, open-drain output compatibility with 3.3 V logic, thermal stability over extended temperature range, and SOT-23 footprint constraints in high-density PCB layouts.
Technical Context
The ADM1815-R22ARTZ-R7 implements a precision voltage comparator with built-in hysteresis and a fixed 150 ms power-up delay timer. Its reset assertion is triggered when VCC falls below 2.12–2.25 V (min–max), and deassertion occurs only after VCC rises above threshold and remains stable for ≥150 ms.
This device belongs to the ADM1815/ADM1816/ADM1817/ADM1818 family of low-power (≤16 µA at 5.5 V) reset monitors featuring open-drain outputs with integrated 3.1–7.5 kΩ pull-up resistors - eliminating external components required for manual reset integration or level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.12 V (min), 2.18 V (typ), 2.25 V (max) - ensures reliable detection of brown-out on 2.5 V or lower supply rails |
| Reset Timeout | 100–250 ms - guarantees safe microprocessor startup after power stabilization |
| Supply Range | 1.2 V to 5.5 V - supports operation even during deep undervoltage conditions |
| Quiescent Current | 4 µA (typ at 3.6 V), 9–16 µA (max at 5.5 V) - enables battery-backed or ultra-low-power system designs |
| Output Type | Active-low open-drain with internal 3.1–7.5 kΩ pull-up - directly interfaces with 3.3 V or 5 V reset inputs without external resistor |
| Operating Temp | −40°C to +105°C - qualified for under-hood automotive and industrial control environments |
| Package | SOT-23 (RT-3) - 2.9 mm × 1.3 mm footprint compatible with standard pick-and-place assembly |
Pinout & Package
ADM1815-R22ARTZ-R7 is housed in a 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB, with 1.9 mm height, 0.95 mm nominal lead pitch, and coplanarity ≤0.10 mm - suitable for automated optical inspection and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low open-drain reset output | Pulled low during reset; floats high (via internal resistor) when deasserted - compatible with CMOS/TTL reset inputs and manual push-button circuits |
| VCC | Supply voltage input | Monitored rail input; also powers internal comparator and timer - accepts 1.2–5.5 V, enabling use with diverse core/logic supplies |
| GND | Ground reference | 0 V return path for all internal circuitry and reset output sink current - must be low-impedance to ensure accurate threshold detection |
Key Features
| Feature | Design Value |
|---|---|
| Integrated pull-up resistor | 3.1–7.5 kΩ internal resistor eliminates need for external pull-up, reducing BOM count and board area |
| Manual reset support | Compatible with push-button between RST and GND - triggers 150 ms reset pulse upon button release |
| Fixed 150 ms timeout | Guaranteed minimum delay prevents premature processor release before power rail stabilization |
| Low temperature drift | Reset threshold deviation <±1.5% over −40°C to +105°C - maintains reliability in harsh thermal environments |
| High ESD tolerance | Rated to ±2 kV HBM - reduces risk of field failure during handling or system integration |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitors 2.5 V auxiliary supply powering CAN transceiver and sensor interface ASICs in engine bay. IC Role / Device Role / Timing Role: Active-low reset supervisor ensuring MCU resets only after 2.5 V rail stabilizes post-ignition, with 150 ms hold-off. Use Value: Prevents spurious CAN bus errors and sensor data corruption caused by premature MCU boot during cold cranking voltage sag. | Use Scenario: Supervises 2.18 V FPGA configuration voltage in modular I/O base unit operating near motor drives. IC Role / Device Role / Timing Role: Voltage monitor with open-drain output tied to FPGA's PROG_B pin, asserting reset on undervoltage. Use Value: Eliminates need for external pull-up resistor and discrete reset timing RC network - simplifies layout and improves long-term calibration stability. |
| Medical Infusion Pump Controller | Railway Signaling Interface Board |
Use Scenario: Guards 2.5 V microcontroller core supply in battery-operated infusion pump with safety-critical firmware. IC Role / Device Role / Timing Role: Reset generator with guaranteed 100–250 ms timeout and −40°C to +105°C qualification for extended shelf life. Use Value: Ensures deterministic boot sequence after battery insertion or low-voltage recovery - critical for FDA Class II device compliance. | Use Scenario: Monitors isolated 2.5 V DC-DC output powering opto-isolated RS-485 transceivers in track-side signaling node. IC Role / Device Role / Timing Role: Low-quiescent-current (≤16 µA) supervisor minimizing standby power draw in always-on railway infrastructure. Use Value: Extends backup battery runtime during grid outage while maintaining EN 50121-3-2 EMC immunity via robust internal design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326-L21T | 2.1 V nominal threshold, 140 ms timeout, SOT-23-3, push-pull output (no internal pull-up) | Requires external pull-up for open-drain interface; tighter threshold tolerance (±0.5%) but no manual reset support | Select when precise threshold matching is prioritized over manual reset integration and board space savings |
| TPS3808G12DBVR | 1.22 V threshold, adjustable timeout (1.25 ms–10 s), SOT-23-6, active-low open-drain, higher IQ (12 µA typ) | Supports programmable delay and wider supply range (0.8–6 V); larger footprint and more complex layout due to 6-pin package | Choose when system requires configurable reset timing or multi-rail supervision beyond single 2.18 V point |
Compared with MAX6326-L21T and TPS3808G12DBVR, the ADM1815-R22ARTZ-R7 offers integrated pull-up and manual reset capability in the smallest possible 3-pin SOT-23 footprint - making it optimal for cost-sensitive, space-constrained applications where fixed 150 ms delay and 2.18 V threshold meet requirements without added complexity.
Availability
ADM1815-R22ARTZ-R7 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC modules, and medical infusion pump controllers requiring stable component supply with full RoHS compliance and traceable lot documentation.
Supply support for ADM1815-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADM181x series was developed specifically for cost-sensitive, space-constrained microprocessor reset supervision in automotive, industrial, and medical systems - emphasizing low power, wide temperature operation, and minimal external component count.
FAQ
What is the exact reset threshold voltage range for ADM1815-R22ARTZ-R7?
The ADM1815-R22ARTZ-R7 has a guaranteed reset threshold range of 2.12 V (minimum), 2.18 V (typical), and 2.25 V (maximum) at TA = −40°C to +105°C. This specification is validated per Table 1 in the Rev. F datasheet and applies specifically to the R22 variant, not other members of the ADM1815 family.
Does ADM1815-R22ARTZ-R7 support manual reset via push-button?
Yes, ADM1815-R22ARTZ-R7 supports manual reset: connecting a push-button between RST and GND pulls the output low; releasing the button initiates a 150 ms (typical) reset pulse. This behavior is explicitly documented in the "ADM1813 AND ADM1818" section and confirmed for all R22-suffixed ADM1815/ADM1816/ADM1817/ADM1818 variants.
What package type and dimensions does ADM1815-R22ARTZ-R7 use?
ADM1815-R22ARTZ-R7 uses the 3-lead SOT-23 (RT-3) package per JEDEC TO-236-AB, with body dimensions 2.90 mm × 1.30 mm × 1.02 mm and 0.95 mm lead pitch. Pin 1 is RST, Pin 2 is VCC, and Pin 3 is GND - verified in Figure 2 and Table 3 of the Rev. F datasheet.
Is ADM1815-R22ARTZ-R7 RoHS compliant and lead-free?
Yes, ADM1815-R22ARTZ-R7 is RoHS compliant and lead-free. The "Z" suffix in the part number (ARTZ-R7) explicitly denotes RoHS-compliant packaging per Analog Devices' ordering guide footnote #2, and the device meets JEDEC J-STD-609 Category 1a marking requirements.
What is the maximum supply voltage and operating temperature range for ADM1815-R22ARTZ-R7?
ADM1815-R22ARTZ-R7 supports a supply voltage range of 1.2 V to 5.5 V and operates across −40°C to +105°C. These limits are specified in Tables 1 and 2 of the Rev. F datasheet and apply to all ADM1815-R22 variants regardless of package (SOT-23 or SC70).
ADM1815-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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.18V
- Output:
- Push-Pull, Totem Pole
- 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
ADM1815-R22ARTZ-R7 FAQ
1.How can I place an order for ADM1815-R22ARTZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1815-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 ADM1815-R22ARTZ-R7 reliable?
The price and inventory of ADM1815-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 ADM1815-R22ARTZ-R7 is usually 5 days.
3.What payment methods are accepted for ADM1815-R22ARTZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1815-R22ARTZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1815-R22ARTZ-R7?
ADM1815-R22ARTZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1815-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 ADM1815-R22ARTZ-R7?
For technical support, including ADM1815-R22ARTZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1815-R22ARTZ-R7 requirements.
6.How does Aetrix verify that ADM1815-R22ARTZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADM1815-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 ADM1815-R22ARTZ-R7 meets industry standards.
7.What is the process for return or replacement of ADM1815-R22ARTZ-R7?
All ADM1815-R22ARTZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1815-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 ADM1815-R22ARTZ-R7 part is unused and in its original packaging.
Return procedure for ADM1815-R22ARTZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADM1815-R22ARTZ-R7 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…
