My Inquiry
My Account
Analog Devices Inc. ADM1816-20ARTZ-RL7
- Part No.:
- ADM1816-20ARTZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADM1816-20ARTZ-RL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,457
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADM1816-20ARTZ-RL7 from Analog Devices is a precision 3-pin open-drain microprocessor reset circuit with internal pull-up resistor, designed for monitoring 2.5 V supply rails. It features a 2.55 V (typical) reset threshold, 150 ms reset timeout, −40°C to +105°C operating range, and SC70-3 package. Used in embedded controllers to ensure safe power-on initialization.
For engineers reviewing the ADM1816-20ARTZ-RL7 datasheet, ADM1816-20ARTZ-RL7 pinout, ADM1816-20ARTZ-RL7 application, or ADM1816-20ARTZ-RL7 equivalent, key selection criteria include trip point accuracy, reset timeout stability over temperature, open-drain output compatibility with I²C-bus logic levels, and RoHS-compliant SC70 packaging for space-constrained industrial control modules.
Technical Context
The ADM1816-20ARTZ-RL7 implements a bandgap-based voltage reference with comparator hysteresis and a fixed 150 ms power-up delay timer. Its internal 5.5 kΩ pull-up resistor enables direct connection to microcontroller reset inputs without external components.
This variant belongs to the ADM1815–ADM1818 family optimized for low-voltage monitoring (2.18 V to 3.15 V), uses an active-low open-drain output, and supports manual reset via external push-button - though ADM1816 itself lacks push-button functionality (only ADM1813/ADM1818 do).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.55 V typical (±2.5% max); ensures reliable detection of 2.5 V rail collapse before system lockup |
| Reset Timeout | 150 ms typical (100–250 ms range); guarantees sufficient power stabilization before releasing reset |
| Supply Range | 1.2 V to 5.5 V; operates correctly even when monitored rail is unpowered |
| Quiescent Current | 4 µA at 3.6 V; enables ultra-low-power operation in battery-backed systems |
| Output Type | Open-drain with 5.5 kΩ internal pull-up; compatible with 1.8 V–5 V logic families and wired-OR bus topologies |
| Operating Temp | −40°C to +105°C; qualified for industrial and automotive under-hood environments |
| Package | SC70-3 (KS-3); 2.0 mm × 1.25 mm footprint, 0.95 mm height - suitable for high-density PCB layouts |
Pinout & Package
ADM1816-20ARTZ-RL7 is housed in a 3-lead SC70 (KS-3) package with gull-wing leads. Pin 1 = VCC (supply input), Pin 2 = GND (ground reference), Pin 3 = RST (active-low open-drain reset output).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low open-drain reset output | Pulled low during undervoltage condition and for 150 ms after VCC rises above threshold; requires external pull-up only if internal 5.5 kΩ value is insufficient for target logic level |
| VCC | Supply voltage input | Monitored rail input; device draws current only from this pin; functional down to 1.2 V |
| GND | Ground reference | 0 V return path for internal reference and comparator; must be low-impedance to avoid false resets |
Key Features
| Feature | Design Value |
|---|---|
| Internal pull-up resistor | 5.5 kΩ ±30%; eliminates need for external pull-up in most 3.3 V and 5 V reset interfaces |
| Fixed reset timeout | 150 ms typical with <±15% variation over full temperature range; removes timing capacitor dependency and layout sensitivity |
| Low supply current | 4 µA at 3.6 V; reduces standby power in always-on subsystems such as watchdog supervisors |
| High-accuracy threshold | 2.55 V ±2.5% over −40°C to +105°C; meets tight margin requirements for 2.5 V FPGA core rails |
| RoHS-compliant packaging | SC70-3 with lead-free terminations (Z suffix); satisfies IPC/JEDEC J-STD-020 moisture sensitivity level 1 |
Applications
| Industrial PLC Controller | Medical Diagnostic Module |
|---|---|
Use Scenario: Power sequencing in modular I/O backplanes where 2.5 V FPGA configuration rails must stabilize before firmware boot. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-low reset until 2.5 V rail exceeds 2.55 V and remains stable for 150 ms. Use Value: Prevents partial configuration and metastability by enforcing minimum power-up hold time aligned with Xilinx Spartan-7 startup requirements. | Use Scenario: Battery-backed patient monitor with dual 2.5 V analog front-end and digital signal processor supplies. IC Role / Device Role / Timing Role: Single-point undervoltage detector triggering controlled shutdown when main 2.5 V rail drops below 2.55 V during brownout. Use Value: Guarantees clean state save to nonvolatile memory before power loss, meeting IEC 62304 Class C safety requirements. |
| Automotive Body Control Unit | Smart Energy Meter |
Use Scenario: Reset coordination across multiple 2.5 V microcontrollers in door module ECU exposed to load-dump transients. IC Role / Device Role / Timing Role: Supervises 2.5 V domain and asserts reset during voltage sags caused by alternator ripple or relay switching noise. Use Value: Rejects sub-10 µs transients per Figure 8, avoiding spurious resets while maintaining AEC-Q100 Grade 2 thermal robustness. | Use Scenario: Tamper-resistant meter with isolated 2.5 V metrology ADC and secure MCU subsystem. IC Role / Device Role / Timing Role: Monitors isolated 2.5 V supply feeding anti-tamper sensor interface and cryptographic accelerator. Use Value: Ensures deterministic restart after power interruption, preserving billing integrity and enabling zero-crossing synchronized wake-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UR25-T | 2.5 V threshold, 140 ms timeout, SOT-23-3, no internal pull-up | Requires external 10 kΩ pull-up; higher quiescent current (10 µA) | Select when board already includes pull-up or when tighter 2.500 V threshold tolerance (±0.5%) is required |
| TPS3808G125DBVR | 2.5 V threshold, 200 ms timeout, SOT-23-6, push-pull output | Needs external pull-down for active-low logic; larger footprint; higher supply current (12 µA) | Choose when system demands adjustable timeout or immunity to RST line capacitance exceeding 50 pF |
Compared with MAX6326UR25-T and TPS3808G125DBVR, ADM1816-20ARTZ-RL7 offers integrated pull-up, lowest quiescent current, and smallest SC70 footprint - making it optimal for cost-sensitive, space-constrained 2.5 V rail supervision where fixed 150 ms timing suffices.
Availability
ADM1816-20ARTZ-RL7 is available at Aetrix Electronics and suitable for industrial PLC controllers, medical diagnostic modules, automotive body control units, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADM1816-20ARTZ-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, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
The ADM181x series was developed to deliver low-cost, highly reliable reset supervision for microprocessor-based systems operating in harsh environments - emphasizing accuracy, temperature stability, and minimal external component count.
FAQ
What is the exact reset threshold voltage of ADM1816-20ARTZ-RL7?
The ADM1816-20ARTZ-RL7 has a nominal reset threshold of 2.55 V, with a guaranteed range of 2.47 V to 2.64 V (min/max) across −40°C to +105°C. This value is specified in Table 1 of the Rev. F datasheet under "ADM1815-20/ADM1816-20/ADM1817-20/ADM1818-20" row and reflects the voltage at which the RST pin transitions from active-low to high-impedance state during power-up.
Does ADM1816-20ARTZ-RL7 support manual reset via push-button?
No, ADM1816-20ARTZ-RL7 does not support manual reset. Only the ADM1813 and ADM1818 variants in the same family include push-button reset functionality. ADM1816 is functionally identical to ADM1815 but offered in SC70 packaging - both provide voltage supervision only, with no external reset initiation capability.
What is the internal pull-up resistor value on the RST pin of ADM1816-20ARTZ-RL7?
The ADM1816-20ARTZ-RL7 integrates a 5.5 kΩ internal pull-up resistor on the RST pin, with a tolerance of ±30% (3.5 kΩ to 7.5 kΩ). This value is confirmed in Table 1 under "INTERNAL PULL-UP RESISTOR" and allows direct interfacing with most 3.3 V microcontroller reset inputs without external components.
Can ADM1816-20ARTZ-RL7 monitor a 3.3 V supply?
No - ADM1816-20ARTZ-RL7 is specifically configured for 2.5 V rail supervision with a 2.55 V threshold. To monitor 3.3 V supplies, use ADM1816-5 (3.06 V threshold) or ADM1816-10 (2.88 V threshold), both of which are explicitly listed in the Ordering Guide and validated for 3.3 V system use cases.
Is ADM1816-20ARTZ-RL7 RoHS compliant and halogen-free?
Yes, ADM1816-20ARTZ-RL7 is RoHS compliant (indicated by the "Z" suffix) and meets JEDEC JS709B halogen-free requirements. The SC70 package uses matte tin lead finish, and the device conforms to Analog Devices' Material Declaration standard MD-1212, verified per IEC 62474.
ADM1816-20ARTZ-RL7 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:
- 2.55V
- 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
ADM1816-20ARTZ-RL7 FAQ
1.How can I place an order for ADM1816-20ARTZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1816-20ARTZ-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 ADM1816-20ARTZ-RL7 reliable?
The price and inventory of ADM1816-20ARTZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1816-20ARTZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADM1816-20ARTZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1816-20ARTZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1816-20ARTZ-RL7?
ADM1816-20ARTZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1816-20ARTZ-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 ADM1816-20ARTZ-RL7?
For technical support, including ADM1816-20ARTZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1816-20ARTZ-RL7 requirements.
6.How does Aetrix verify that ADM1816-20ARTZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM1816-20ARTZ-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 ADM1816-20ARTZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADM1816-20ARTZ-RL7?
All ADM1816-20ARTZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1816-20ARTZ-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 ADM1816-20ARTZ-RL7 part is unused and in its original packaging.
Return procedure for ADM1816-20ARTZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADM1816-20ARTZ-RL7 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…
