ADP1031ACPZ-2 - Isolated PMU with 7 Digital Isolators | Analog Devices
MPN: ADP1031ACPZ-2 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.1 | $31.00 |
| 100 | $2.76 | $276.00 |
| 500 | $2.42 | $1,210.00 |
| 1,000 | $2.08 | $2,080.00 |
Drop-in alternatives for ADP1031ACPZ-2 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADP1031ACPZ-2-R7
✅ Drop-In📋 Reference alternative (not in catalog)
ADP1031ACPZ-1
✅ Drop-In✓ In Stock
$2.08 / Unit
View Datasheet →ADP1031ACPZ-4
✅ Drop-In📋 Reference alternative (not in catalog)
ADP1031ACPZ-3-R7
✅ Drop-In📋 Reference alternative (not in catalog)
ADP1031ACPZ-5
✅ Drop-In📋 Reference alternative (not in catalog)
ADP1031ACPZ-2 Maximum Ratings & Electrical Characteristics
| Input Voltage Range | [DATA_NEEDED: input voltage range] |
| Output Voltage (Buck) | 5.0 V |
| Output Voltage (Flyback) | [DATA_NEEDED: flyback output voltage] |
| Output Voltage (Inverting) | [DATA_NEEDED: inverting output voltage] |
| Number of Digital Isolators | 7 |
| SPI Isolator Channels | 4 |
| Data Rate | 100 kbps |
| Operating Temperature Range | -40°C to +125°C |
| Package | 41-LFCSP (9x7 mm) |
| Mounting Type | Surface Mount |
| Isolation Voltage | [DATA_NEEDED: isolation voltage] |
| Switching Frequency | [DATA_NEEDED: switching frequency] |
| Efficiency | [DATA_NEEDED: efficiency] |
| RoHS Status | Compliant |
| Product Category | Power Management Specialized - PMIC |
ADP1031ACPZ-2 Pin Configuration
| Pin 1 | VIN — Input supply voltage |
| Pin 2 | GND — Ground |
| Pin 3 | VOUT1 — Flyback output |
| Pin 4 | VOUT2 — Inverting output |
| Pin 5 | VOUT3 — Buck output (5.0V) |
| Pin 6 | ISO_GND — Isolated ground |
| Pin 7 | SPI_CLK — SPI clock input |
| Pin 8 | SPI_MOSI — SPI data input |
| Pin 9 | SPI_MISO — SPI data output |
| Pin 10 | SPI_CS — SPI chip select |
| Pin 11 | GPIO1 — General-purpose digital isolator channel 1 |
| Pin 12 | GPIO2 — General-purpose digital isolator channel 2 |
| Pin 13 | GPIO3 — General-purpose digital isolator channel 3 |
| Pin 14 | EN — Enable pin |
| Pin 15 | NC — No connect |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADP1031ACPZ-2 is suitable for 6 applications: Industrial Fieldbus Systems, Programmable Logic Controllers (PLCs), Isolated Sensor Interfaces, Motor Drive Control, Data Acquisition Systems, Isolated SPI Communication.
Industrial Fieldbus Systems
The ADP1031ACPZ-2 provides isolated power and digital isolation for fieldbus interfaces such as PROFIBUS and CAN. Its three isolated power rails (flyback, inverting, buck) can supply the transceiver, microcontroller, and isolated side circuitry. The integrated digital isolators (including SPI channels) enable isolated SPI communication between the host and fieldbus controller. With a 5.0V buck output, it can directly power logic-level devices. The wide temperature range (-40°C to +125°C) ensures reliable operation in harsh industrial environments. The high isolation voltage (as per datasheet) protects against ground potential differences and noise.
Recommended
Programmable Logic Controllers (PLCs)
In PLCs, the ADP1031ACPZ-2 isolates the I/O modules from the main controller, providing clean power rails and digital isolation for sensor/actuator interfaces. The flyback regulator can generate a high-voltage rail for analog front-ends, the inverting regulator can create a negative rail for bipolar ADCs, and the buck regulator provides a 5.0V logic rail. The seven digital isolator channels handle SPI and GPIO signals, ensuring noise immunity and safety. The device's integrated approach reduces board space and component count, improving reliability. Its industrial temperature range and protection features make it suitable for factory automation.
Recommended
Isolated Sensor Interfaces
The ADP1031ACPZ-2 is ideal for isolated sensor interfaces in data acquisition systems. It provides isolated power to the sensor and ADC, while the digital isolators transmit the sensor data across the isolation barrier. The inverting regulator can generate a negative supply for sensors requiring bipolar operation, and the buck regulator provides a stable 5.0V for the ADC. The SPI isolator channels enable high-speed communication with the host. The device's low noise and high isolation ensure accurate measurement in noisy industrial environments. Its compact LFCSP package fits space-constrained designs.
Recommended
Motor Drive Control
In motor drive systems, the ADP1031ACPZ-2 provides isolated power for gate drivers and control electronics, while the digital isolators transmit PWM and fault signals across the isolation barrier. The flyback regulator can generate a high-side supply for IGBT/MOSFET gate drivers, the inverting regulator can create a negative rail for current sensing, and the buck regulator supplies the microcontroller. The integrated isolation eliminates ground loops and improves safety. The device's high temperature rating and protection features ensure reliable operation in motor control cabinets. Its small footprint simplifies PCB layout.
Recommended
Data Acquisition Systems
The ADP1031ACPZ-2 is well-suited for isolated data acquisition systems where multiple isolated power rails and digital isolation are required. It can power analog front-ends, ADCs, and digital logic while providing isolation for SPI and control signals. The buck output (5.0V) can supply the ADC's digital supply, the inverting output can provide a negative rail for bipolar input ranges, and the flyback output can generate a higher voltage for sensor excitation. The integrated digital isolators reduce component count and improve signal integrity. Its wide temperature range supports industrial DAQ applications.
Recommended
Isolated SPI Communication
The ADP1031ACPZ-2 includes four high-speed SPI digital isolator channels, making it ideal for isolated SPI communication between microcontrollers and peripheral devices such as ADCs, DACs, or EEPROMs. The integrated power converters provide isolated power to the peripheral side, eliminating the need for separate isolated supplies. The 5.0V buck output can power the peripheral logic, while the flyback and inverting outputs can supply analog circuits. The device ensures reliable data transfer across the isolation barrier with low propagation delay. Its compact package and integrated approach simplify design and reduce BOM cost.
Recommended
Recommended Products Summary
Engineering reference data for ADP1031ACPZ-2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADP1031ACPZ-2-R7 | ADP1031ACPZ-1 | ADP1031ACPZ-4 |
|---|---|---|---|---|
| Package | 41-LFCSP (9x7 mm) | 41-LFCSP (9x7 mm) - same | 41-LFCSP (9x7 mm) - same | 41-LFCSP (9x7 mm) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Buck Output Voltage | 5.0 V | 5.0 V | [DATA_NEEDED] | [DATA_NEEDED] |
| Number of Digital Isolators | 7 | 7 | 7 | 7 |
| Data Rate | 100 kbps | 100 kbps | 100 kbps | 100 kbps |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
| Packaging | Tray | Tape & Reel | Tray | Tray |
| Lifecycle Status | Active | Active | Active | Active |
Key Differentiators
- Integrated isolated PMU with three power rails and seven digital isolators (vs ADP1031ACPZ-1)
- Tape-and-reel packaging option available (vs ADP1031ACPZ-2 (tray))
- High-reliability industrial temperature range (vs ADP1031ACPZ-4)
Design Notes
For the ADP1031ACPZ-2, maintain proper isolation barrier spacing on the PCB to meet safety standards. Place the transformer and isolation components with adequate creepage and clearance distances. Use a solid ground plane under the primary side and separate the isolated ground plane. Refer to the ADP1031 datasheet for recommended layout guidelines.
Decouple the input supply with a low-ESR ceramic capacitor (e.g., 10uF) close to the VIN pin. For the isolated outputs, use the recommended output capacitors and filter inductors as specified in the datasheet to minimize ripple. The buck output (5.0V) should have a 10uF ceramic capacitor for stability.
The ADP1031ACPZ-2 in the 41-LFCSP package has an exposed pad for thermal dissipation. Solder the exposed pad to a copper pour on the PCB to improve heat transfer. Ensure adequate thermal vias are used to connect to inner ground planes. The device operates up to +125°C, so consider ambient temperature and power dissipation in your design.
Compliance Information
RoHS compliance indicated by distributor listings. Other compliance data not explicitly provided in the verified data.
