Analog Devices Inc. AD5748ACPZ-RL7

Overview

AD5748ACPZ-RL7 from Analog Devices is a single-channel, precision industrial current/voltage output driver with hardware- or software-programmable ranges. It delivers ±0.05% FSR TUE on voltage outputs (0 V to 5 V, 0 V to 10.5 V, ±10.5 V) and ±0.15% FSR TUE on current outputs (0 mA to 21 mA, 4 mA to 21 mA), operates from ±12 V to ±24 V analog supplies, and features SPI/MICROWIRE-compatible serial interface with PEC error checking - used in PLC analog output modules for actuator control.

For engineers reviewing the AD5748ACPZ-RL7 datasheet, AD5748ACPZ-RL7 pinout, AD5748ACPZ-RL7 application, or AD5748ACPZ-RL7 equivalent, key selection criteria include programmable output range configuration (hardware vs. software mode), ±10.5 V bipolar voltage compliance, 4–21 mA loop compatibility, fault detection (open/short-circuit, overtemperature), and 32-lead 5 mm × 5 mm LFCSP package thermal performance in −40°C to +105°C industrial environments.

Technical Context

The AD5748ACPZ-RL7 accepts a buffered 0 V to 4.096 V analog input and conditions it internally to generate either precision voltage output (via VOUT pin) or current output (via IOUT pin), with independent range selection. Its dual-mode operation-software-controlled via SPI register writes or hardware-configured via R0–R3 pins-enables flexible integration into isolated or non-isolated PLC I/O designs.

Output protection includes short-circuit and open-circuit fault detection on both channels, with dedicated open-drain alert pins (VFAULT, FAULT/TEMP, NC/IFAULT). The device supports capacitive loads up to 2 µF and inductive loads up to 0.1 H, and uses internal or external RSET resistors to optimize current output drift (±3 ppm/°C typical with internal RSET).

Key Specifications

Pinout & Package

AD5748ACPZ-RL7 is housed in a 32-lead, 5 mm × 5 mm LFCSP package with exposed paddle tied to AVSS. Pin functions support dual-mode operation (HW SELECT = 0 for software, = 1 for hardware), fault monitoring, and flexible output configuration.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar industrial output driver applications.

Compared with AD5750ACPZ-REEL7 and AD5422ACPZ-REEL7, AD5748ACPZ-RL7 uniquely balances programmable range versatility, PEC-secured digital interface, and minimal 32-lead footprint - making it optimal for upgradeable, fault-aware industrial I/O modules where design reuse and diagnostics are prioritized.

Availability

AD5748ACPZ-RL7 is available at Aetrix Electronics and suitable for PLC analog output modules, process controller actuator drivers, and isolated field transmitter interfaces requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across production batches.

Supply support for AD5748ACPZ-RL7 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.

The AD5748ACPZ-RL7 belongs to Analog Devices' industrial precision output driver product line, designed specifically for robust, programmable analog output stages in programmable logic controllers, distributed control systems, and process automation equipment.

FAQ

What output voltage ranges does the AD5748ACPZ-RL7 support?

The AD5748ACPZ-RL7 supports three voltage output ranges: 0 V to 5 V, 0 V to 10.5 V, and ±10.5 V. Range selection is configurable in software mode via SPI registers or in hardware mode using R0–R3 pins. For ±10.5 V operation, AVDD and AVSS must provide ≥1.3 V headroom relative to the output swing - e.g., ±12 V supplies are sufficient, but ±10.5 V requires ±12 V minimum.

How does the AD5748ACPZ-RL7 handle current output accuracy and drift?

The AD5748ACPZ-RL7 achieves ±0.15% FSR total unadjusted error (TUE) at 25°C for both 0–21 mA and 4–21 mA ranges, with typical output drift of ±5 ppm/°C FSR. Accuracy improves when using an external 15 kΩ RSET resistor (±0.02% FSR TUE), and the device supports open-circuit fault detection on the IOUT pin to prevent undetected loop breaks in field wiring.

Can the AD5748ACPZ-RL7 operate in both software and hardware control modes?

Yes - the AD5748ACPZ-RL7 supports dual-mode operation determined by the HW SELECT pin. When HW SELECT = 0, it operates in software mode with SPI register control; when HW SELECT = 1, it enters hardware mode where output ranges and RSET selection are set by logic levels on R0–R3 and SYNC/RSET pins. This allows seamless integration into both microcontroller-based and discrete logic-controlled systems.

What fault detection capabilities does the AD5748ACPZ-RL7 provide?

The AD5748ACPZ-RL7 integrates four fault detection mechanisms: VOUT short-circuit (via SDO/VFAULT), IOUT open-circuit (via NC/IFAULT in hardware mode or FAULT/TEMP in software mode), overtemperature (via FAULT/TEMP), and SPI packet corruption (via PEC CRC-8). All alerts are open-drain and require external pull-up resistors, enabling direct connection to MCU GPIOs or dedicated fault supervisors.

What is the recommended power supply configuration for the AD5748ACPZ-RL7?

The AD5748ACPZ-RL7 requires separate analog and digital supplies: AVDD and AVSS must be ±12 V to ±24 V (±10%), while DVCC operates from 2.7 V to 5.5 V. The exposed paddle must be soldered and connected to AVSS for thermal and electrical integrity. Output loop compliance reaches AVDD − 2.75 V, so AVDD should be sized to accommodate worst-case load voltage drop plus headroom.