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Analog Devices Inc. ADM13307-18ARZ
- Part No.:
- ADM13307-18ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADM13307-18ARZ.pdf
- Description:
- IC SUPERVISOR 3 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:242
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Product details
Overview
ADM13307-18ARZ from Analog Devices is a triple voltage supervisor IC designed to monitor three independent supply rails-specifically 3.3 V, 1.8 V, and an adjustable 1.25 V threshold-in microprocessor and DSP systems. It delivers push-pull active-high and active-low reset outputs, features 140 ms minimum reset timeout, operates from 2.0 V to 5.5 V, and supports −40°C to +85°C industrial temperature range.
For engineers reviewing the ADM13307-18ARZ datasheet, ADM13307-18ARZ pinout, ADM13307-18ARZ application, or ADM13307-18ARZ equivalent, key selection criteria include its fixed dual-threshold configuration (2.93 V / 1.68 V), externally adjustable third threshold (1.25 V reference), low 40 μA supply current, and guaranteed RESET assertion down to VDD ≥ 1.1 V.
Technical Context
The ADM13307-18ARZ implements a triple-input undervoltage detection architecture with two internally pretrimmed SENSE inputs (SENSE1 = 2.93 V nominal, SENSE2 = 1.68 V nominal) and one adjustable SENSE input (SENSE3 referenced to 1.25 V). Each input includes hysteresis (30 mV at 2.93 V, 15 mV at 1.68 V, 20 mV at 1.25 V) and supports glitch immunity via minimum pulse width requirements (6 μs for SENSEv).
It integrates a precision oscillator-based reset timeout timer (140–280 ms), manual reset (MR) input with 100 ns minimum pulse width, and dual complementary push-pull reset outputs (RESET and RESET) that remain valid down to VDD = 1.1 V. The device uses internal bandgap references and resistor-divider programmability only on SENSE3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - supports wide-range logic and I/O rail monitoring in mixed-voltage systems. |
| Fixed Thresholds (SENSE1/SENSE2) | 2.93 V (±30 mV) and 1.68 V (±15 mV) - factory-trimmed for 3.3 V and 1.8 V rails without external components. |
| Adjustable Threshold (SENSE3) | 1.25 V reference - enables precise monitoring of custom voltages (e.g., 1.5 V, 2.5 V) via external resistor divider. |
| Reset Timeout | 140 ms (min) - ensures stable processor initialization after power-up or brownout recovery. |
| Supply Current | 40 μA (max) - ultra-low quiescent current suitable for battery-backed and portable applications. |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded and computing environments. |
| Reset Valid Down To | VDD ≥ 1.1 V - guarantees reliable reset assertion during deep brownout conditions. |
Pinout & Package
ADM13307-18ARZ is housed in an 8-lead narrow-body SOIC package (JEDEC MS-012-AA, R-8), measuring 4.90 mm × 3.90 mm × 1.75 mm, with 1.27 mm lead pitch and RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - SENSE1 | Fixed-threshold voltage monitor input | Monitors 3.3 V rail at 2.93 V nominal; hysteresis = 30 mV; requires no external components. |
| 2 - SENSE2 | Fixed-threshold voltage monitor input | Monitors 1.8 V rail at 1.68 V nominal; hysteresis = 15 mV; immune to short glitches ≥6 μs. |
| 3 - SENSE3 | Adjustable-threshold voltage monitor input | Referenced to 1.25 V internal bandgap; configured via external resistor divider for custom supply monitoring. |
| 4 - GND | Analog and digital ground reference | Single ground connection; decoupling capacitor (0.1 μF) required between VDD and GND for noise immunity. |
| 5 - RESET | Active-low push-pull reset output | Drives low during fault or power-up; sinks up to 2 mA at 3.3 V; VOL ≤ 0.4 V. |
| 6 - RESET | Active-high push-pull reset output | Complementary to RESET; sources up to 2 mA at 3.3 V; VOH ≥ VDD − 0.4 V. |
| 7 - MR | Manual reset input | Active-low; accepts logic-level or push-button signal; triggers full reset timeout when asserted ≥100 ns. |
| 8 - VDD | Power supply input | Accepts 2.0–5.5 V; powers all internal circuitry including references, comparators, and timers. |
Key Features
| Feature | Design Value |
|---|---|
| Dual fixed + one adjustable threshold | Enables simultaneous monitoring of standard 3.3 V/1.8 V rails plus a custom rail (e.g., core voltage) without trimming resistors on fixed inputs. |
| Guaranteed RESET at VDD ≥ 1.1 V | Ensures deterministic reset behavior during brownout events where supply dips below 1.8 V but remains above 1.1 V. |
| Push-pull RESET/RESET outputs | Eliminates need for external pull-up/pull-down resistors; supports direct interface to processors with either active-high or active-low reset inputs. |
| 140 ms minimum reset timeout | Meets typical microcontroller power-on reset timing requirements without external RC networks or additional timing ICs. |
| Low 40 μA supply current | Minimizes system standby power draw-critical for always-on supervisory functions in portable and energy-sensitive designs. |
Applications
| Industrial PLC Power Monitoring | Notebook CPU Core Voltage Supervision |
|---|---|
|
Use Scenario: Monitoring 24 V DC input, 3.3 V logic rail, and 1.8 V FPGA I/O rail in programmable logic controller backplane. IC Role / Device Role / Timing Role: Triple supervisor provides synchronized reset assertion across subsystems upon any rail failure, with 140 ms timeout ensuring firmware boot stability. Use Value: Prevents partial initialization and state corruption by holding all domains in reset until all three monitored supplies stabilize within tolerance. |
Use Scenario: Supervising 12 V adapter input, 1.8 V DDR memory supply, and adjustable 1.05 V CPU core voltage in ultrabook motherboard. IC Role / Device Role / Timing Role: SENSE1 monitors adapter presence (2.93 V), SENSE2 tracks DDR rail (1.68 V), SENSE3 (1.25 V ref) watches core voltage via resistor divider. Use Value: Enables single-chip supervision of heterogeneous voltage domains while maintaining compatibility with Intel VR12/VR13 sequencing requirements. |
| Wireless Baseband Processor Reset Control | Industrial DSP Boot Integrity Assurance |
|
Use Scenario: Ensuring clean startup of LTE baseband SoC requiring coordinated reset of RF transceiver (3.3 V), digital core (1.8 V), and analog bias (1.25 V derived). IC Role / Device Role / Timing Role: Generates simultaneous RESET/RESET signals to SoC and companion chips; MR pin allows field-service reset via test point. Use Value: Eliminates risk of RF lockup or digital hang due to out-of-spec supply ramp rates or transient-induced reset glitches. |
Use Scenario: Securing boot sequence of TI C6000 DSP in motor drive controller where 5 V auxiliary, 3.3 V I/O, and 1.8 V core must be validated before code execution. IC Role / Device Role / Timing Role: Monitors 3.3 V (SENSE1), 1.8 V (SENSE2), and 1.25 V reference-derived 2.5 V (SENSE3) to confirm all critical rails meet spec prior to release. Use Value: Prevents corrupted firmware load or incorrect peripheral initialization caused by marginal supply conditions during cold start. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple-supply monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6816TPA+T | Triple supervisor with 2.93 V / 1.68 V / 1.25 V thresholds; identical pinout but higher 60 μA supply current and no MR input. | Lacks manual reset capability; unsuitable where field-service or debug-initiated reset is required. | Select only if MR functionality is unnecessary and board layout rework for MR trace removal is acceptable. |
| TPS3808G33DBVR | Single-channel 3.3 V supervisor with adjustable delay; requires two additional ICs to match triple-monitoring function. | Increases BOM count, PCB area, and power consumption; no native support for 1.8 V or adjustable 1.25 V reference. | Use only in redesign scenarios where modular supervision is preferred over integrated triple monitoring. |
Compared with MAX6816TPA+T and TPS3808G33DBVR, ADM13307-18ARZ uniquely combines fixed 2.93 V/1.68 V thresholds, 1.25 V adjustable reference, manual reset, and sub-40 μA operation in a single SOIC-8 package-enabling compact, low-power, and serviceable triple-rail supervision without compromise.
Availability
ADM13307-18ARZ is available at Aetrix Electronics and suitable for industrial PLCs, notebook motherboards, wireless baseband modules, and DSP-based motor controllers requiring stable component supply across extended temperature and long product lifecycles.
Supply support for ADM13307-18ARZ 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, with design and manufacturing operations worldwide.
The ADM13307 family was developed to address demand for compact, low-power, multi-rail supervision in space-constrained embedded systems-particularly those deploying DSPs, microcontrollers, and FPGAs in industrial and portable equipment.
FAQ
What voltage rails does the ADM13307-18ARZ monitor by default?
The ADM13307-18ARZ monitors three rails: SENSE1 at 2.93 V (for 3.3 V systems), SENSE2 at 1.68 V (for 1.8 V systems), and SENSE3 referenced to 1.25 V (adjustable via external resistor divider for custom voltages like 1.05 V or 2.5 V). These thresholds are specified in the Ordering Guide and confirmed in Tables 1 and 10 of the Rev. 0 datasheet.
Does ADM13307-18ARZ support manual reset functionality?
Yes, ADM13307-18ARZ includes a dedicated MR (Manual Reset) pin (Pin 7) that asserts both RESET and RESET outputs when pulled low for ≥100 ns. This allows hardware-triggered resets via push-button switches or logic signals, and the device holds reset for the full 140 ms timeout after MR release-ensuring deterministic recovery.
Can ADM13307-18ARZ operate reliably during brownout conditions?
Yes, ADM13307-18ARZ guarantees RESET assertion down to VDD = 1.1 V, enabling robust response to brownouts where supply sags below nominal but remains above 1.1 V. Its internal references and comparators remain functional in this range, and both RESET outputs retain valid logic states per datasheet Table 1.
What is the package type and RoHS status of ADM13307-18ARZ?
ADM13307-18ARZ is supplied in an 8-lead narrow-body SOIC package (JEDEC MS-012-AA, R-8) with RoHS-compliant finish (denoted by "Z" suffix per Ordering Guide). Dimensions are 4.90 mm × 3.90 mm × 1.75 mm, lead pitch 1.27 mm, and thermal resistance θJA = 206°C/W.
How does the adjustable threshold on SENSE3 work in ADM13307-18ARZ?
SENSE3 in ADM13307-18ARZ is internally referenced to a precise 1.25 V bandgap. To monitor a custom voltage (e.g., 1.05 V), connect a resistor divider between the target rail and SENSE3 such that VSENSE3 = 1.25 V when the rail reaches its trip point-per the equation VMONITORED = 1.25 V × (1 + R1/R2) shown in Figure 13 of the datasheet.
ADM13307-18ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 3
- Voltage - Threshold:
- 1.68V, 2.93V, Adj
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High/Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADM13307-18ARZ FAQ
1.How can I place an order for ADM13307-18ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM13307-18ARZ 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 ADM13307-18ARZ reliable?
The price and inventory of ADM13307-18ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM13307-18ARZ is usually 5 days.
3.What payment methods are accepted for ADM13307-18ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM13307-18ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM13307-18ARZ?
ADM13307-18ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM13307-18ARZ 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 ADM13307-18ARZ?
For technical support, including ADM13307-18ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM13307-18ARZ requirements.
6.How does Aetrix verify that ADM13307-18ARZ is sourced from the original manufacturer or authorized distributors?
All ADM13307-18ARZ 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 ADM13307-18ARZ meets industry standards.
7.What is the process for return or replacement of ADM13307-18ARZ?
All ADM13307-18ARZ units undergo pre-shipment inspection (PSI). If there is an issue with ADM13307-18ARZ, 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 ADM13307-18ARZ part is unused and in its original packaging.
Return procedure for ADM13307-18ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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