Analog Devices Inc. ADM1062ACPZ

Overview

ADM1062ACPZ from Analog Devices is a configurable supervisory and sequencing IC for multivoltage systems, integrating 10-supply fault detection (±1% accuracy), 12-bit ADC voltage readback, six 8-bit DACs for closed-loop margining (0.300 V–1.551 V), internal/remote temperature sensing, and a state-machine-based sequencing engine with 63 programmable states. It supports FPGA/DSP supply sequencing in telecom line cards.

For engineers reviewing the ADM1062ACPZ datasheet, ADM1062ACPZ pinout, ADM1062ACPZ application, or ADM1062ACPZ equivalent, key selection considerations include its dual-mode PDO outputs (charge-pumped HV drive up to 14 V for N-FET gates + LV logic-level push/pull), SMBus-programmable configuration via 256-byte EEPROM, and support for in-circuit margining test at ±5% of nominal supplies.

Technical Context

The ADM1062ACPZ implements a deterministic state-machine sequencing engine with conditional transitions triggered by input events (e.g., supply OK, fault, timeout), enabling precise power-up/down control and fault-handling sequences across up to 10 rails. Its 12-bit SAR ADC digitizes attenuated VH/VPx/VXx inputs with 0.44 ms per conversion and ±2.5 LSB INL.

Margining is implemented via six independent 8-bit DACs with buffered outputs (2.36 mV LSB, ±0.75 LSB INL), each selectable across four center-voltage ranges (0.6 V to 1.25 V); DAC outputs interface directly to dc-dc converter feedback or reference nodes for closed-loop adjustment without external op-amps.

Key Specifications

Pinout & Package

ADM1062ACPZ is available in a 40-lead, 6 mm × 6 mm LFCSP package with exposed pad (NC, recommended for mechanical stability). Pin functions are validated per Analog Devices DS Rev. D, Figure 3 and Table 4.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADM1062ACPZ, ADM1066ACPZ offers scalability for larger systems without changing layout, while TPS40400RHLR provides lower-cost sequencing-only functionality at the expense of margining and thermal features - making ADM1062ACPZ optimal for production test and thermally constrained environments.

Availability

ADM1062ACPZ is available at Aetrix Electronics and suitable for telecom line cards, server power subsystems, and FPGA development platforms requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for ADM1062ACPZ 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 company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial, and communications markets.

The ADM1062ACPZ belongs to Analog Devices' Super Sequencer® family, designed specifically for complex multivoltage system supervision, closed-loop supply margining, and intelligent power sequencing in telecom infrastructure and high-end computing platforms.

FAQ

What is the primary function of the ADM1062ACPZ in a multivoltage system?

The ADM1062ACPZ serves as a fully configurable supervisory and sequencing IC that monitors up to 10 voltage rails with ±1% accuracy, executes programmable power-up/down sequences using its 63-state sequencing engine, and performs closed-loop voltage margining via six integrated 8-bit DACs. The ADM1062ACPZ integrates these functions into a single chip to replace multiple discrete supervisors, sequencers, and margining DACs in systems like telecom line cards and servers.

How does the ADM1062ACPZ support voltage margining during production testing?

The ADM1062ACPZ supports in-circuit voltage margining by injecting DAC-adjusted signals into the feedback node or reference input of dc-dc converters, enabling precise ±5% supply deviation testing without external equipment. Its six 8-bit DACs (0.300 V–1.551 V range, 2.36 mV LSB) and 12-bit ADC provide closed-loop readback and adjustment - a capability built into the ADM1062ACPZ and confirmed in the Rev. D datasheet's margining section.

What are the key differences between the ADM1062ACPZ and ADM1066ACPZ?

The ADM1066ACPZ is a pin-compatible extension of the ADM1062ACPZ, adding two extra VX inputs (VX6–VX7) and two additional PDO outputs (PDO11–PDO12) while retaining identical DAC resolution, ADC performance, sequencing engine architecture, and package footprint. All other specifications - including ±1% supervision accuracy, 12-bit ADC, and 63-state sequencer - are shared between ADM1062ACPZ and ADM1066ACPZ per Analog Devices' ordering guide.

Can the ADM1062ACPZ drive N-channel MOSFETs directly, and if so, which pins support this?

Yes, the ADM1062ACPZ can directly drive N-channel MOSFET gates using its charge-pumped high-voltage PDO outputs. Pins PDO1 through PDO6 support this mode, delivering up to 14 V (typical 12.5 V at 1 μA load) from a minimum 3.0 V supply - eliminating the need for external level shifters or gate drivers in power-path control applications. This capability is explicitly specified in the ADM1062ACPZ datasheet Rev. D, Table 1 under "High Voltage (Charge Pump) Mode".

Does the ADM1062ACPZ include nonvolatile configuration storage, and how is it programmed?

Yes, the ADM1062ACPZ includes 256 bytes of user EEPROM for storing configuration data, including supply thresholds, sequencing states, DAC settings, and SMBus addresses. Programming is performed via the SMBus interface using Analog Devices' GUI-based software tool, which writes configuration images to the EEPROM during power-up or runtime - a feature documented in the ADM1062ACPZ Rev. D datasheet Sections "EEPROM" and "Configuration Download at Power-Up".