Analog Devices Inc. ADM1063ASUZ-REEL7

Overview

ADM1063ASUZ-REEL7 from Analog Devices is a multisupply supervisory and sequencing IC with integrated 12-bit ADC, dual external temperature sensor interfaces, and 10 programmable driver outputs (PDOs). It monitors up to 10 voltage rails with <1.0% accuracy across −40°C to +85°C, supports supply margining on 6 rails, and implements state-machine-based sequencing for power-up/down and fault response in multivoltage systems such as FPGA/DSP boards.

For engineers reviewing the ADM1063ASUZ-REEL7 datasheet, ADM1063ASUZ-REEL7 pinout, ADM1063ASUZ-REEL7 application, or ADM1063ASUZ-REEL7 equivalent, key selection criteria include its 10-supply supervision capability, charge-pumped high-voltage PDO outputs (up to 14 V), internal EEPROM configuration storage, SMBus interface compliance, and support for both local and remote diode-based temperature monitoring.

Technical Context

The ADM1063ASUZ-REEL7 integrates a sequencing engine (SE) implementing a 63-state finite-state machine that conditions PDO output transitions on input events-including undervoltage, overvoltage, and out-of-window faults-enabling deterministic, event-driven control of power sequencing. Its 12-bit SAR ADC performs round-robin conversion across up to 12 channels (VH, VP1–VP4, VX1–VX5, D1P/D1N, D2P/D2N, REFIN), with 0.44 ms per conversion and ±2.5 LSB INL.

Power arbitration selects the highest valid supply among VH (3.0–14.4 V) or VPx (3.0–6.0 V) to regulate VDDCAP at 4.75 V, ensuring operation during rail brownouts via a 10 μF reservoir capacitor. Six PDOs (PDO1–PDO6) feature internally charge-pumped drivers capable of sourcing up to 14 V at 1 μA load for N-FET gate driving, while PDO7–PDO10 operate as LV logic-level outputs with configurable pull-up targets (VDDCAP or VPx).

Key Specifications

Pinout & Package

ADM1063ASUZ-REEL7 is packaged in a 40-lead, 6 mm × 6 mm LFCSP (Lead Frame Chip Scale Package) with exposed pad (NC, recommended for mechanical stability). Pin functions are validated per Analog Devices Rev. D datasheet Figures 3 and Table 4.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multisupply supervisory and sequencing applications.

Compared with ADM1066ASTZ-REEL and TPS40400RHLR, ADM1063ASUZ-REEL7 uniquely combines high-voltage PDO drive, 12-bit multi-channel ADC readback, dual remote temperature sensing, and field-programmable sequencing logic in a single 40-lead LFCSP-enabling compact, intelligent power management where flexibility and measurement fidelity are critical.

Availability

ADM1063ASUZ-REEL7 is available at Aetrix Electronics and suitable for FPGA power sequencing, DSP voltage margining, and telecom central office power management requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for ADM1063ASUZ-REEL7 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, serving industrial, automotive, communications, and healthcare markets with precision data conversion and power management solutions.

The ADM1063ASUZ-REEL7 belongs to Analog Devices' Power Monitoring and Sequencing product line, designed specifically for intelligent, autonomous power management in high-reliability multivoltage systems such as servers, routers, and FPGA-based accelerators.

FAQ

What is the maximum input voltage supported by the VH pin on the ADM1063ASUZ-REEL7?

The VH pin on the ADM1063ASUZ-REEL7 supports up to 14.4 V in high-range mode and 6.0 V in mid-range mode, with absolute maximum rating of 16 V per the datasheet Absolute Maximum Ratings table. This allows direct connection to 12 V backplane supplies while maintaining accurate supervision down to ±1.0% across temperature. The ADM1063ASUZ-REEL7 uses internal attenuation and comparator circuitry to maintain this accuracy without external components.

Does the ADM1063ASUZ-REEL7 support remote temperature sensing, and how many channels are available?

Yes, the ADM1063ASUZ-REEL7 supports remote temperature sensing via two differential input pairs: D1P/D1N and D2P/D2N, each interfacing with an external thermal diode. It also includes one internal temperature sensor. All three sensors are digitized by the same 12-bit ADC, providing ±3°C accuracy and 0.125°C resolution. The ADM1063ASUZ-REEL7 uses programmable current sources (200 μA high/12 μA low) to bias the diodes and reject noise in noisy telecom or server environments.

Can the ADM1063ASUZ-REEL7 drive N-channel MOSFETs directly, and which pins provide this capability?

Yes, the ADM1063ASUZ-REEL7 can directly drive N-channel MOSFET gates using its charge-pumped high-voltage PDO outputs: PDO1 through PDO6. These pins deliver up to 14 V at 1 μA load, sufficient to fully enhance common logic-level and standard N-FETs used in high-side supply switching. This eliminates external level shifters or boost circuits. PDO7–PDO10 lack charge-pump capability and are limited to VDDCAP or VPx voltage levels.

How is configuration stored and retained on the ADM1063ASUZ-REEL7 after power cycling?

Configuration data-including fault thresholds, sequencing states, ADC settings, and margining parameters-is stored in the ADM1063ASUZ-REEL7's 256-byte user EEPROM. This nonvolatile memory retains settings across power cycles, enabling fully autonomous operation without host processor initialization. The EEPROM supports SMBus-based programming and is rated for ≥100,000 erase/write cycles. The ADM1063ASUZ-REEL7 automatically loads configuration at power-up, ensuring consistent behavior from first boot.

What communication interface does the ADM1063ASUZ-REEL7 use, and what are its timing specifications?

The ADM1063ASUZ-REEL7 uses a standard SMBus 2-wire interface (SCL and SDA pins) compliant with 400 kHz clock frequency, matching Fast-Mode I²C. Key timing specs include tLOW = 1.3 μs, tHIGH = 0.6 μs, and data hold time tHD;DAT = 5 ns. It supports full SMBus protocols-including block writes/reads, alert response, and packet error checking-enabling robust host communication for real-time monitoring, reconfiguration, and fault logging in industrial and telecom systems.