Analog Devices Inc. ADP1032ACPZ-5-R7

Overview

ADP1032ACPZ-5-R7 from Analog Devices is a two-channel isolated micropower management unit (PMU) integrating an isolated flyback regulator (24 V fixed output), a buck regulator (3.3 V output), and seven digital isolators - four high-speed SPI channels and three 100 kbps general-purpose isolators. It operates from 4.5 V to 60 V input, delivers up to 2.5 W total isolated power, and targets industrial field-side power and signal isolation in compact, thermally constrained systems.

For engineers reviewing the ADP1032ACPZ-5-R7 datasheet, ADP1032ACPZ-5-R7 pinout, ADP1032ACPZ-5-R7 application, or ADP1032ACPZ-5-R7 equivalent, this device serves as a single-chip solution for simultaneous isolated power generation and bidirectional digital signal isolation - especially where space, EMI, and junction temperature (−40°C to +125°C) are critical constraints in process control and data acquisition designs.

Technical Context

The ADP1032ACPZ-5-R7 implements dual regulation with phase-shifted switching (250 kHz flyback / 125 kHz buck) to reduce EMI, uses iCoupler® chip-scale transformer isolation for all seven channels, and features independent precision enable and power-good signaling per domain. Its flyback regulator includes adjustable slew rate control via SLEW pin and severe overvoltage protection (30 V threshold).

Isolation domains are strictly segregated: Field Power (VINP, SWP, PGNDP), Master (MVDD, MCK, MI), and Slave (SVDD1/SVDD2, SCK, SO, SGPO1–2, SGPI3). Each domain has dedicated ground pins (PGNDP, MGND, SGND1/SGND2), and internal creepage/clearance meets 2.15 mm minimum per IEC 61010-1 and VIORM = 565 VPEAK per DIN V VDE 0884-10.

Key Specifications

Pinout & Package

ADP1032ACPZ-5-R7 is housed in a 41-lead, 9 mm × 7 mm LFCSP package with three exposed thermal pads (EPGNDP, EPGNDM, EPGND2) internally connected to respective domain grounds. Pin layout separates Field Power (pins 28–33), Master (pins 1–4, 34–41), and Slave (pins 5–27, 29–30) domains to maintain >2.15 mm creepage and clearance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar isolated power + signal isolation applications.

Compared with ADP1031ACPZ-5-R7, the ADP1032ACPZ-5-R7 delivers 47% higher flyback current for heavier analog loads; compared with ISO1211DWLR, it eliminates external DC/DC design effort and reduces total solution size by 38%, but trades off flexibility in output voltage selection.

Availability

ADP1032ACPZ-5-R7 is available at Aetrix Electronics and suitable for industrial automation, process control, and precision data acquisition systems requiring stable component supply, long-term lifecycle support, and certified isolation performance.

Supply support for ADP1032ACPZ-5-R7 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 R&D centers worldwide focused on precision, power, and isolation technologies.

The ADP1032ACPZ-5-R7 belongs to Analog Devices' isolated PMU product line, designed specifically to consolidate isolated power generation and digital signal isolation into a single package for space-constrained industrial and instrumentation applications.

FAQ

What output voltages does the ADP1032ACPZ-5-R7 provide?

The ADP1032ACPZ-5-R7 provides two factory-programmed isolated outputs: VOUT1 is fixed at 24 V (±1.5% accuracy), and VOUT2 is fixed at 3.3 V (±1.5% accuracy). These values are permanently set during manufacturing and cannot be adjusted externally. The 24 V rail powers field-side circuitry such as sensors or actuators, while the 3.3 V rail supplies isolated digital logic like microcontrollers or ADCs. Both outputs are independently regulated and monitored for power-good assertion.

How does the SLEW pin affect performance of the ADP1032ACPZ-5-R7?

The SLEW pin (Pin 32) on the ADP1032ACPZ-5-R7 controls the slew rate of the flyback switch node (SWP) to balance efficiency and EMI. When left open, SWP transitions at maximum speed for peak efficiency; when tied to VINP, it enables normal slew for balanced operation; when tied to GNDP, it slows transitions to minimize radiated emissions. This pin directly impacts conducted EMI profiles and thermal dissipation - measured data shows up to 8 dB reduction in 30–100 MHz emissions with slow slew mode enabled.

What safety certifications apply to the ADP1032ACPZ-5-R7?

The ADP1032ACPZ-5-R7 carries pending safety certifications including UL 1577 (2500 V rms, 1 minute), CSA Component Acceptance Notice 5A, and VDE V 0884-10 (VIORM = 565 VPEAK). It meets basic insulation requirements per IEC 61010-1 (300 V rms) and achieves 2.15 mm minimum creepage/clearance across all domain boundaries. These ratings are validated under DIN V VDE 0884-10 test conditions and support use in measurement Category II/III industrial equipment.

Can the ADP1032ACPZ-5-R7 synchronize to an external clock?

Yes, the ADP1032ACPZ-5-R7 supports external clock synchronization via the SYNC pin (Pin 14). Applying a 350–750 kHz square wave to SYNC forces the flyback regulator to run at fSYNC/2 and the buck regulator at fSYNC/4. This feature enables precise EMI frequency placement away from sensitive bands (e.g., wireless comms or audio) and allows multi-device synchronization in dense PCB layouts. The SYNC input requires a 100 kΩ pull-down resistor to SGND2 and accepts logic levels referenced to SVDD2.

What is the maximum total isolated power output of the ADP1032ACPZ-5-R7?

The ADP1032ACPZ-5-R7 delivers up to 2.5 W total isolated output power under typical conditions (VINP = 24 V, VOUT1 = 24 V @ 100 mA, VOUT2 = 3.3 V @ 30 mA, using Coilcraft ZA9644-AE transformer). Efficiency reaches 86.5% at this load point. At lighter loads (25 mA/7 mA), output power drops to 623 mW with 84.5% efficiency. Thermal derating begins above 85°C ambient, limiting continuous power to ~1.8 W at 105°C ambient per the safety limiting curve in the datasheet.