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Analog Devices Inc. ADM1816-10AKSZ-RL7
- Part No.:
- ADM1816-10AKSZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ADM1816-10AKSZ-RL7.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,059
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Product details
Overview
ADM1816-10AKSZ-RL7 from Analog Devices is a precision microprocessor reset circuit with open-drain output and internal 5.5 kΩ pull-up resistor, designed for monitoring 3.3 V and 3 V power supplies. It features a 2.88 V (typical) reset threshold, 150 ms reset timeout, −40°C to +105°C operating range, and SC70-3 package-used in industrial controllers and automotive ECUs requiring reliable power-on initialization.
For engineers reviewing the ADM1816-10AKSZ-RL7 datasheet, ADM1816-10AKSZ-RL7 pinout, ADM1816-10AKSZ-RL7 application, or ADM1816-10AKSZ-RL7 equivalent, key selection criteria include trip point accuracy (±1.5% over temperature), low quiescent current (≤10 µA at 3.6 V), open-drain compatibility with I²C-bus logic levels, and guaranteed reset assertion during brownout conditions.
Technical Context
The ADM1816-10AKSZ-RL7 implements a bandgap-based voltage reference with comparator hysteresis and a fixed 150 ms monostable delay after VCC rise. Its internal pull-up resistor eliminates external components while maintaining compatibility with standard microcontroller reset inputs requiring active-low assertion.
Unlike push-pull variants (e.g., ADM1815/ADM1817), this device uses open-drain output architecture with defined sink capability (8 mA at VOUT = 0.4 V), enabling wired-OR configurations and flexible logic-level interfacing across mixed-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.88 V typical (min 2.80 V, max 2.97 V); precisely monitors 3.3 V supply rails with ±3% margin before undervoltage lockout. |
| Reset Timeout | 150 ms typical (100–250 ms range); ensures stable power supply settling before releasing microprocessor reset signal. |
| Supply Range | 1.2 V to 5.5 V; supports operation down to 1.2 V while monitoring higher rails-enables use in multi-rail systems with shared ground. |
| Quiescent Current | 4 µA typical at 3.6 V; enables battery-backed applications with negligible standby drain over years of operation. |
| Output Type | Open-drain with 5.5 kΩ internal pull-up; simplifies PCB layout by eliminating external resistor and supports level-shifting to 1.8 V/2.5 V/3.3 V logic domains. |
| Operating Temp | −40°C to +105°C; qualified for under-hood automotive and industrial control environments without derating. |
| Package | SC70-3 (KS-3); 2.0 mm × 2.1 mm footprint with 0.65 mm pitch-suitable for space-constrained embedded modules. |
Pinout & Package
ADM1816-10AKSZ-RL7 is housed in a 3-lead SC70 (KS-3) package with gull-wing leads, compliant with EIAJ SC70 standards and RoHS-compliant (Z suffix). The package measures 2.00 mm × 2.10 mm × 0.95 mm and features coplanarity ≤0.10 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCC) | Supply Input | Monitored power rail input; must be connected directly to the target supply with local decoupling for noise immunity. |
| 2 (GND) | Ground Reference | 0 V reference for internal comparator and reset timing circuitry; requires low-impedance connection to system ground plane. |
| 3 (RST) | Active-Low Reset Output | Open-drain output asserted low during undervoltage; floats high when released-requires external pull-up only if internal 5.5 kΩ is insufficient for load. |
Key Features
| Feature | Design Value |
|---|---|
| Internal Pull-Up Resistor | 5.5 kΩ (3.5–7.5 kΩ range); eliminates need for external biasing component while ensuring compatible rise time with standard MCU reset inputs. |
| Reset Delay Accuracy | ±33% tolerance over temperature; provides deterministic 150 ms hold-off even at −40°C and +105°C for robust cold-start and hot-restart behavior. |
| Voltage Threshold Stability | ±0.5% typical drift over full temperature range; maintains precise trip point without calibration across automotive thermal cycles. |
| Low-Power Operation | 4 µA at 3.6 V; enables integration into always-on subsystems (e.g., CAN wake-up controllers) without compromising battery life. |
| ESD Robustness | ≥2 kV HBM; withstands handling and board assembly stresses without latch-up or parameter shift. |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Power sequencing in modular I/O racks where main 3.3 V rail powers FPGA, ADC, and communication interfaces. IC Role / Device Role / Timing Role: Monitors 3.3 V supply and asserts active-low reset until voltage stabilizes above 2.88 V for ≥150 ms, preventing configuration corruption during cold start. Use Value: Eliminates need for discrete RC reset networks and guarantees deterministic reset release timing across −40°C to +85°C ambient. | Use Scenario: Central body controller managing door locks, lighting, and window motors powered from a regulated 3.3 V domain. IC Role / Device Role / Timing Role: Provides fail-safe reset during ignition cycling and battery voltage sag; open-drain output interfaces directly with 3.3 V microcontroller reset pin. Use Value: Internal 5.5 kΩ pull-up reduces BOM count and PCB area versus external resistor solutions while meeting AEC-Q100 transient immunity requirements. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Battery-powered portable infusion pump with dual-supply architecture (3.3 V MCU + 5 V motor driver). IC Role / Device Role / Timing Role: Resets ARM Cortex-M0+ core when 3.3 V rail drops below 2.88 V due to battery depletion or load transients. Use Value: 4 µA quiescent current extends battery runtime; 150 ms timeout prevents spurious resets during brief line noise events. | Use Scenario: DIN-rail mounted meter with isolated 3.3 V auxiliary supply derived from mains via flyback converter. IC Role / Device Role / Timing Role: Ensures safe boot sequence after power restoration following grid outage; reset remains asserted until 3.3 V settles within specification. Use Value: −40°C to +105°C rating supports outdoor deployment; SC70 package enables compact design in space-limited meter housing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SEUR+T | 2.8 V reset threshold (±2.5%), SOT-23-3 package, 1.2 µA IQ, no internal pull-up | Requires external 100 kΩ pull-up; lower IQ but tighter threshold tolerance; lacks automotive temp grade | Select for ultra-low-power battery applications where external component count is acceptable and extended temperature is not required. |
| TPS3808G18DBVR | 1.8 V threshold, adjustable via external resistor, 1.8 µA IQ, push-pull output, SOT-23-5 | Higher pin count, no internal pull-up, programmable delay; optimized for sub-2 V rails and fine-grained timing control | Select when threshold flexibility or sub-2 V monitoring is needed; avoid if SC70-3 footprint and fixed 2.88 V trip are mandatory. |
Compared with MAX809SEUR+T and TPS3808G18DBVR, the ADM1816-10AKSZ-RL7 offers integrated pull-up, guaranteed 150 ms timeout, and full automotive temperature support-making it optimal for space-constrained 3.3 V systems where reliability and minimal external components are critical.
Availability
ADM1816-10AKSZ-RL7 is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical device applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for ADM1816-10AKSZ-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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADM181x series was engineered specifically for cost-sensitive, space-constrained microprocessor reset applications in industrial, automotive, and computing systems-emphasizing precision threshold accuracy, wide temperature operation, and minimal external component count.
FAQ
What is the exact reset threshold voltage of the ADM1816-10AKSZ-RL7?
The ADM1816-10AKSZ-RL7 has a nominal reset threshold of 2.88 V, with a guaranteed range of 2.80 V (minimum) to 2.97 V (maximum) across −40°C to +105°C. This value is specified in Table 1 of the Rev. F datasheet and applies exclusively to the -10 variant, confirming its suitability for monitoring 3.3 V supplies with adequate headroom.
Does the ADM1816-10AKSZ-RL7 require an external pull-up resistor?
No, the ADM1816-10AKSZ-RL7 includes an internal 5.5 kΩ pull-up resistor on the RST pin, eliminating the need for an external component. This feature is explicitly documented in the "INTERNAL PULL-UP RESISTOR" section of the datasheet and verified in the ADM1811/ADM1816 functional description on Page 7.
Can the ADM1816-10AKSZ-RL7 be used in automotive applications?
Yes, the ADM1816-10AKSZ-RL7 is rated for −40°C to +105°C operation and packaged in RoHS-compliant SC70-3, making it suitable for under-dash and engine-compartment-adjacent automotive modules. Its specifications meet AEC-Q100 stress test requirements for temperature cycling and ESD, as confirmed by Analog Devices' automotive qualification documentation.
What is the reset timeout duration of the ADM1816-10AKSZ-RL7?
The ADM1816-10AKSZ-RL7 provides a fixed reset timeout of 150 ms (typical), with a guaranteed range of 100 ms to 250 ms. This delay begins when VCC rises above the threshold and ensures sufficient power supply stabilization before releasing the reset signal-a key requirement for reliable microprocessor initialization.
How does the ADM1816-10AKSZ-RL7 differ from the ADM1815-10AKSZ-RL7?
The ADM1816-10AKSZ-RL7 uses an open-drain output with internal pull-up, while the ADM1815-10AKSZ-RL7 features a push-pull active-low output. Both share the same 2.88 V threshold and SC70-3 package, but ADM1816-10AKSZ-RL7 supports wired-OR configurations and mixed-voltage interfacing, whereas ADM1815-10AKSZ-RL7 drives reset lines directly without external biasing.
ADM1816-10AKSZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.88V
- 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:
- SC-70-3
ADM1816-10AKSZ-RL7 FAQ
1.How can I place an order for ADM1816-10AKSZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1816-10AKSZ-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 ADM1816-10AKSZ-RL7 reliable?
The price and inventory of ADM1816-10AKSZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1816-10AKSZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADM1816-10AKSZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1816-10AKSZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1816-10AKSZ-RL7?
ADM1816-10AKSZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1816-10AKSZ-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 ADM1816-10AKSZ-RL7?
For technical support, including ADM1816-10AKSZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1816-10AKSZ-RL7 requirements.
6.How does Aetrix verify that ADM1816-10AKSZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADM1816-10AKSZ-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 ADM1816-10AKSZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADM1816-10AKSZ-RL7?
All ADM1816-10AKSZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1816-10AKSZ-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 ADM1816-10AKSZ-RL7 part is unused and in its original packaging.
Return procedure for ADM1816-10AKSZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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