Analog Devices Inc. ADM1063ACPZ

Overview

ADM1063ACPZ from Analog Devices is a configurable multisupply supervisor and sequencer with integrated 12-bit ADC, temperature monitoring, and programmable driver outputs. It supervises up to 10 voltage rails with <1.0% accuracy across temperature, supports supply margining on 6 rails, and delivers charge-pumped 12 V gate drive (PDO1–PDO6) for external N-FETs in power-path control. Used in DSP/FPGA supply sequencing and multivoltage line cards.

For engineers reviewing the ADM1063ACPZ datasheet, ADM1063ACPZ pinout, ADM1063ACPZ application, or ADM1063ACPZ equivalent, key selection criteria include its 10-supply fault detection capability, dual-mode PDO outputs (LV logic enable or HV FET drive), internal/external temperature sensing, SMBus-configurable sequencing engine, and support for 14.4 V high-voltage supervision with selectable input attenuators.

Technical Context

The ADM1063ACPZ implements a state-machine-based sequencing engine supporting up to 63 programmable states, enabling conditional power-up/down sequences triggered by input events (e.g., supply OK, fault, watchdog timeout). Its 12-bit SAR ADC performs round-robin conversion across VH, VPx, and VXx inputs with 0.44 ms per channel and 84 ms for full 12-channel readback with 16× averaging.

Power arbitration selects the highest valid supply among VH (3.0–14.4 V) or VPx (3.0–6.0 V) to generate a regulated 4.75 V VDDCAP output; no external regulator is needed. Five VXx pins serve as dual-function inputs-either ultralow-range (0.573–1.375 V) fault detectors or general-purpose logic inputs-with 1 MΩ impedance and programmable glitch filtering (0–100 μs).

Key Specifications

Pinout & Package

ADM1063ACPZ is packaged in a 40-lead, 6 mm × 6 mm LFCSP 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 ADM1168ACPZ and TPS40422RTWR, the ADM1063ACPZ uniquely combines 10-supply supervision, charge-pumped HV outputs for N-FET control, 12-bit ADC telemetry, and triple temperature sensing in a single SMBus-configurable IC-enabling fully autonomous, self-validating power management without external processors or discrete support components.

Availability

ADM1063ACPZ is available at Aetrix Electronics and suitable for server/routers, DSP/FPGA supply sequencing, and multivoltage system line cards requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for ADM1063ACPZ 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 systems.

The ADM1063ACPZ belongs to Analog Devices' Power Management & Supervisory IC product line, designed specifically for autonomous, high-accuracy power sequencing and telemetry in complex multirail systems such as servers, telecom infrastructure, and programmable logic platforms.

FAQ

What is the maximum input voltage supported by the ADM1063ACPZ VH pin?

The ADM1063ACPZ VH pin supports up to 14.4 V in high-range mode, with absolute maximum rating of 16 V. This allows direct connection to 12 V backplane supplies while maintaining accurate fault detection down to ±1.0% across temperature. Operation above 14.4 V violates specification and may compromise accuracy or reliability of the ADM1063ACPZ.

Does the ADM1063ACPZ require an external reference for optimal ADC performance?

The ADM1063ACPZ includes an internal 2.048 V ±0.25% REFOUT pin that can be connected directly to REFIN for standard operation. However, for applications demanding higher ADC gain accuracy (e.g., precision margining), an external low-noise reference driving REFIN is supported and improves gain error specification from ±0.05% to match the external reference's tolerance. The ADM1063ACPZ functions correctly with either source.

How many temperature sensors does the ADM1063ACPZ integrate, and what types are they?

The ADM1063ACPZ integrates one internal diode-based temperature sensor and supports two external thermal diodes via differential D1P/D1N and D2P/D2N pins. All three sensors are read by the same 12-bit ADC, providing simultaneous local die temperature and remote component monitoring with ±3°C accuracy. This architecture eliminates need for separate thermal ICs in the ADM1063ACPZ design.

Can the ADM1063ACPZ drive N-channel MOSFETs directly, and which pins support this?

Yes, the ADM1063ACPZ can directly drive N-channel MOSFET gates using its charge-pumped high-voltage outputs. PDO1 through PDO6 feature an internal charge pump delivering up to 14 V at 20 μA average current-sufficient to fully enhance common logic-level N-FETs in power-path control. PDO7–PDO10 lack this capability and are limited to LV logic signaling, making PDO1–PDO6 the designated pins for FET gate drive in the ADM1063ACPZ.

What package options are available for the ADM1063ACPZ, and is the exposed pad electrically connected?

The ADM1063ACPZ is offered in a 40-lead, 6 mm × 6 mm LFCSP package (ACPZ suffix). The exposed pad on the bottom is a no-connect (NC) terminal-electrically isolated from all internal circuits-but should be soldered to the PCB ground plane for mechanical stability and thermal dissipation. This differs from some other LFCSP devices where the pad is VSS-connected; for the ADM1063ACPZ, it remains floating per Analog Devices datasheet Rev. D.