Analog Devices Inc. ADUC7025BCPZ32-RL

Overview

ADUC7025BCPZ32-RL from Analog Devices is a precision analog microcontroller integrating an ARM7TDMI core, 12-bit 1 MSPS ADC (10 single-ended + 2 multiplexed ADC/DAC channels), on-chip 2.5 V voltage reference, and temperature sensor (±3°C accuracy). It operates at up to 41.78 MHz with 62 kB Flash/EE and 8 kB SRAM, targeting high-accuracy industrial sensor conditioning and closed-loop control.

For engineers reviewing the ADUC7025BCPZ32-RL datasheet, ADUC7025BCPZ32-RL pinout, ADUC7025BCPZ32-RL application, or ADUC7025BCPZ32-RL equivalent, key selection criteria include its 10-channel ADC configuration (no DAC outputs), 40-lead 6 mm × 6 mm LFCSP package, −40°C to +125°C operation, and integrated 3-phase PWM generator for motor control interfacing.

Technical Context

The ADUC7025BCPZ32-RL implements an ARM7TDMI 16/32-bit RISC core with JTAG debug support and executes from on-chip 62 kB Flash/EE memory. Its analog subsystem centers on a 12-bit SAR ADC with 1 MSPS sampling rate, configurable for single-ended (0 V to VREF) or differential input modes, and includes a low-drift 2.5 V band gap reference (±5 mV, ±40 ppm/°C).

Digital peripherals include UART, dual I²C, SPI, 4 general-purpose timers, watchdog timer, wake-up timer, and a dedicated 3-phase PWM block with six complementary outputs (PWM0H/L, PWM1H/L, PWM2H/L). The device lacks on-chip DACs-ADC12 and ADC13 are available as analog inputs only, not DAC pins.

Key Specifications

Pinout & Package

ADUC7025BCPZ32-RL uses a 40-lead, 6 mm × 6 mm LFCSP package with exposed thermal pad (EPAD). Pin functions align with the ADuC7025-specific configuration shown in Figure 6 of Rev. H datasheet, omitting DAC output pins present on higher variants (e.g., ADuC7026/28/29).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision analog microcontroller applications.

Compared with ADUC7024BCPZ32-RL and ADUC7026BCPZ64-RL, the ADUC7025BCPZ32-RL delivers identical core performance and ADC precision while eliminating DAC circuitry and external memory logic-reducing power, cost, and PCB area for applications needing only analog input and 3-phase PWM.

Availability

ADUC7025BCPZ32-RL is available at Aetrix Electronics and suitable for industrial sensor conditioning, motor control feedback systems, and optical transceiver monitoring requiring stable component supply, long-term lifecycle support, and guaranteed −40°C to +125°C operation.

Supply support for ADUC7025BCPZ32-RL 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 ADuC70xx family was designed specifically for precision data acquisition and real-time control in harsh industrial environments, combining high-resolution analog front-ends with robust ARM-based processing in a single chip.

FAQ

Does ADUC7025BCPZ32-RL include on-chip DAC outputs?

No, ADUC7025BCPZ32-RL does not include DAC outputs. Unlike ADUC7024/26/28/29 variants, its ADC12 and ADC13 pins are configured exclusively as analog inputs-not DAC-capable. This simplifies design for applications requiring only high-accuracy ADC and PWM, reducing layout complexity and cost.

What is the maximum ADC channel count supported by ADUC7025BCPZ32-RL?

ADUC7025BCPZ32-RL supports 10 dedicated single-ended ADC channels (ADC0–ADC9) plus two additional inputs (ADC12 and ADC13), totaling 12 analog input channels. These are not multiplexed with DACs, and all 12 are usable simultaneously for analog acquisition.

Can ADUC7025BCPZ32-RL operate with an external reference voltage?

Yes, ADUC7025BCPZ32-RL accepts external reference voltages from 0.625 V to AVDD on the VREF pin. When using an external reference, the ADC input range becomes 0 V to VREF, and specifications such as INL (±1.0 LSB) and DNL (+0.7/−0.6 LSB) apply per the datasheet Table 1.

What PWM features are implemented in ADUC7025BCPZ32-RL?

ADUC7025BCPZ32-RL integrates a full 3-phase PWM generator with six complementary outputs (PWM0H/L, PWM1H/L, PWM2H/L), programmable dead time, synchronous update, and trip inputs for fault protection-enabling direct interface to 3-phase inverter gate drivers without external logic.

Is ADUC7025BCPZ32-RL qualified for automotive applications?

ADUC7025BCPZ32-RL is specified for −40°C to +125°C operation and meets industrial reliability standards, but it is not AEC-Q100 qualified. For automotive use, designers must perform system-level qualification; Analog Devices offers AEC-Q100 qualified variants in other families (e.g., ADuC7023) but not within the ADuC7025 product line.