ADuCM363
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ADuCM363

Low Power, Precision Analog Microcontroller with Single Sigma-Delta ADC, ARM Cortex-M3

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 4
1ku List Price Starting From $7.56
Features
  • Pin compatible with the ADuCM360/ADuCM361
  • Analog input/output
    • Single 24-bit ADC
    • Programmable ADC output rate (3.5 Hz to 3.906 kHz)
    • Simultaneous 50 Hz/60 Hz noise rejection
      • At 50 SPS continuous conversion mode
      • At 16.67 SPS single conversion mode
  • Flexible input mux for input channel selection to the ADC
  • One 24-bit multichannel ADC (ADC1)
    • 6 differential or 12 single-ended input channels
    • 4 internal channels for monitoring DAC, temperature sensor, IOVDD/4, and AVDD/4 (ADC1 only)
    • Programmable gain (1 to 128)
    • Gain of 1 with input buffer on/off supported
    • RMS noise: 52 nV at 3.53 Hz, 200 nV at 50 Hz
  • Programmable sensor excitation current sources
  • On-chip precision voltage reference
    • Two external reference options supported by the ADC
  • Single 12-bit voltage output DAC
    • NPN mode for 4 mA to 20 mA loop applications
  • Microcontroller
    • ARM Cortex-M3 32-bit processor
    • Serial wire download and debug
    • Internal watch crystal for wake-up timer
    • 16 MHz oscillator with 8-way programmable divider
  • Memory
    • Up to 256 kB Flash/EE memory, 24 kB SRAM
    • In-circuit debug/download via serial wire and UART
  • Power supply range: 1.8 V to 3.6 V (maximum)
  • Power consumption, MCU active mode
    • Core consumes 290 μA/MHz
    • Overall system current consumption of 1.0 mA with core operating at 500 kHz (both ADCs on, input buffers off, PGA gain of 4, one SPI port on, and all timers on)
  • Power consumption, power-down mode: 4 μA (wake-up timer active)
  • On-chip peripherals
    • 2× UART, I2C, and 2 × SPI serial I/O
    • 16-bit PWM controller
    • 19-pin multifunction GPIO port
    • 2 general-purpose timers
    • Wake-up timer/watchdog timer
    • Multichannel DMA and interrupt controller
      • DMA support for both SPI channels
  • Package and temperature range
    • 48-lead, 7 mm × 7 mm LFCSP
    • Specified for −40°C to +125°C operation
  • Development tools
    • Low cost QuickStart Development System
    • Third-party compiler and emulator tool support
  • Multiple diagnostic functions that support SIL certification
Additional Details
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The ADuCM362/ADuCM363 is a fully integrated, 3.9 kSPS, 24-bit data acquisition system that incorporates dual, high performance, multichannel sigma-delta (Σ-Δ) analog-to-digital converters (ADCs), a 32-bit ARM Cortex™-M3 processor, and Flash/EE memory on a single chip. The ADuCM362/ ADuCM363 are designed for direct interfacing to external precision sensors in both wired and battery-powered applications. The ADuCM363 contains all the features of the ADuCM362, except that only one 24-bit Σ-Δ ADC (ADC1) is available.

The ADuCM362/ADuCM363 contain an on-chip 32 kHz oscillator and an internal 16 MHz high frequency oscillator. The high frequency oscillator is routed through a programmable clock divider from which the operating frequency of the processor core clock is generated. The maximum core clock speed is 16 MHz; this speed is not limited by operating voltage or temperature.

The microcontroller core is a low power ARM Cortex-M3 processor, a 32-bit RISC machine that offers up to 20 MIPS peak performance. The Cortex-M3 processor incorporates a flexible, 11-channel DMA controller that supports all wired communica-tion peripherals (both SPIs, both UARTs, and I2C). Also integrated on chip are up to 256 kB of nonvolatile Flash/EE memory and 24 kB of SRAM.

The analog subsystem consists of dual ADCs, each connected to a flexible input mux. Both ADCs can operate in fully differential and single-ended modes. Other on-chip ADC features include dual programmable excitation current sources, diagnostic current sources, and a bias voltage generator of AVDD_REG/2 (900 mV) to set the common-mode voltage of an input channel. A low-side internal ground switch is provided to allow power-down of an external circuit (for example, a bridge circuit) between conversions. Optional input buffers are provided for the analog inputs and the external reference inputs. These buffers can be enabled for all PGA gain settings.

The ADCs contain two parallel filters: a sinc3 or sinc4 filter in parallel with a sinc2 filter. The sinc3 or sinc4 filter is used for precision measurements. The sinc2 filter is used for fast measure-ments and for the detection of step changes in the input signal.

The devices contain a low noise, low drift internal band gap reference, but they can be configured to accept one or two external reference sources in ratiometric measurement config-urations. An option to buffer the external reference inputs is provided on chip. A single-channel buffered voltage output DAC is also provided on chip.

The ADuCM362/ADuCM363 integrate a range of on-chip peripherals, which can be configured under microcontroller software control as required in the application. The peripherals include two UARTs, I2C, and dual SPI serial I/O communication controllers; a 19-pin GPIO port; two general-purpose timers; a wake-up timer; and a system watchdog timer. A 16-bit PWM controller with six output channels is also provided.

The ADuCM362/ADuCM363 are specifically designed to operate in battery-powered applications where low power operation is critical. The microcontroller core can be configured in a normal operating mode that consumes 290 μA/MHz (including flash/SRAM IDD). An overall system current consumption of 1 mA can be achieved with both ADCs on (input buffers off), PGA gain of 4, one SPI port on, and all timers on.

The ADuCM362/ADuCM363 can be configured in a number of low power operating modes under direct program control, including a hibernate mode (internal wake-up timer active) that consumes only 4 μA. In hibernate mode, peripherals, such as external interrupts or the internal wake-up timer, can wake up the devices. This mode allows the devices to operate with ultralow power while still responding to asynchronous external or periodic events.

On-chip factory firmware supports in-circuit serial download via a serial wire interface (2-pin JTAG system) and UART; non-intrusive emulation is also supported via the serial wire interface. These features are incorporated into a low cost QuickStart™ Development System that supports this precision analog micro-controller family.

The devices operate from an external 1.8 V to 3.6 V voltage supply and are specified over an industrial temperature range of −40°C to +125°C.

APPLICATIONS

  • Industrial automation and process control
  • Intelligent precision sensing systems
  • 4 mA to 20 mA loop-powered smart sensor systems
  • Medical devices, patient monitoring
Part Models 4
1ku List Price Starting From $7.56

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Documentation

Documentation

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Product Lifecycle

PCN

Nov 10, 2022

- 22_0277

Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages

ADUCM363BCPZ128

PRODUCTION

ADUCM363BCPZ128RL7

PRODUCTION

ADUCM363BCPZ256

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ADUCM363BCPZ256RL7

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Filter by Model

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PCN

Nov 10, 2022

- 22_0277

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Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages

ADUCM363BCPZ128

PRODUCTION

ADUCM363BCPZ128RL7

PRODUCTION

ADUCM363BCPZ256

PRODUCTION

ADUCM363BCPZ256RL7

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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EVAL-ADuCM362-ADuCM363

ADuCM362 and ADuCM363 Evaluation Board

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EVAL-ADuCM362-ADuCM363

ADuCM362 and ADuCM363 Evaluation Board

ADuCM362 and ADuCM363 Evaluation Board

Features and Benefits

  • ADuCM362/ADuCM363 evaluation board
  • 2 power supply options: 5 V from a USB port connected to the Segger J-Link OB emulator or 1.8 V to 3.6 V from an external power supply
  • On-board resistance temperature detector (RTD) for temperature measurements
  • Access to all analog and digital pins
  • Power and general-purpose LEDs
  • Reset and download push-buttons
  • 8-pin connector to the Segger J-Link OB emulator
  • 32.768 kHz external crystal

Product Detail

The ADuCM362/ADuCM363 development system allows evaluation of ADuCM362 or ADuCM363 silicon. This quick start guide introduces the support features and tools supplied with the ADuCM362/ADuCM363 evaluation kit. In addition, this guide describes how to connect the evaluation hardware.

The getting started guide works as a tutorial, providing instructions on how to download third party evaluation software tools. Instructions are also provided on how to load code examples supplied with the software tools.

The ADuCM362 is a fully integrated, 4 kSPS, 24-bit data acquisition system that incorporates dual, high performance multichannel sigma-delta (Σ-Δ) analog-to-digital converters (ADCs), a 32-bit ARM® Cortex®-M3 processor, and Flash/EE memory on a single chip.

The ADuCM362 is designed for direct interfacing to external precision sensors in both wired and battery-powered applications. The ADuCM363 contains all the features of the ADuCM362 except for the ADC0, which is removed.

This guide gives users the ability to generate and download user code for use in unique end system requirements.

Complete specifications for the ADuCM362/ADuCM363 are provided in the ADuCM362/ADuCM363 data sheet and should be consulted in conjunction with this user guide when using the evaluation board.

Reference Designs

Reference Designs 7

ADuCM360 as a Temperature Monitor Controller with a Thermocouple Interface

12-Bit, 4-20mA Loop-Powered Thermocouple Measurement System Using ARM Cortex-M3

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CN0300

12-Bit, 4-20mA Loop-Powered Thermocouple Measurement System Using ARM Cortex-M3

CN0300

Circuits from the lab

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12-Bit, 4-20mA Loop-Powered Thermocouple Measurement System Using ARM Cortex-M3

Features and Benefits

  • T-type thermocouple measurement system, to loop powered 4-20mA output
  • Typical temperature range of -200 C to +400 C
  • Single chip solution using a Cortex processing core
  • Cold junction compensation
View Detailed Reference Design external link

Design & Integration Tools

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zip

1479 kB

NDIR Gas Sensing Circuit

NDIR Thermopile-Based Gas Sensing Circuit

ADuCM360/ADuCM361 as a Temperature Monitor Controller with a Thermocouple Interface

USB - Based, Thermocouple Temperature Measurement System Using ARM Cortex - M3

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CN0221

USB - Based, Thermocouple Temperature Measurement System Using ARM Cortex - M3

CN0221

Circuits from the lab

tooltip Info:Circuits from the lab
USB - Based, Thermocouple Temperature Measurement System Using ARM Cortex - M3

Features and Benefits

  • Typical temperature range of -200 C to +400 C
  • Precision Cortex M3 analog microcontroller with 24-bit sigma-delta ADC
  • T-type thermocouple measurement system with cold junction compensation
  • Single chip solution
View Detailed Reference Design external link

Design & Integration Tools

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zip

856 kB

ADuCM360 Controlling 4 mA-to-20 mA Loop-Based Temperature Monitor Circuit

14-Bit, 4-20 mA, Loop Powered, Thermocouple Temperature Measurement System Using ARM Cortex-M3

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CN0319

14-Bit, 4-20 mA, Loop Powered, Thermocouple Temperature Measurement System Using ARM Cortex-M3

CN0319

Circuits from the lab

tooltip Info:Circuits from the lab
14-Bit, 4-20 mA, Loop Powered, Thermocouple Temperature Measurement System Using ARM Cortex-M3

Features and Benefits

  • 4-20mA thermocouple temperature monitor
  • Cold junction compensation
  • Loop powered
View Detailed Reference Design external link

Design & Integration Tools

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zip

1365 kB

4 mA to 20 mA, Loop Powered Field Instrument

Complete 4 mA to 20 mA Loop Powered Field Instrument with HART Interface

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CN0267

Complete 4 mA to 20 mA Loop Powered Field Instrument with HART Interface

CN0267

Circuits from the lab

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Complete 4 mA to 20 mA Loop Powered Field Instrument with HART Interface

Features and Benefits

  • Complete 4mA to 20mA loop powered field instrument
  • HART compliant interface
  • Registered by HART Communication Foundation (HFC)
  • Low power, small footprint
View Detailed Reference Design external link

Design & Integration Tools

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zip

936 kB

EVAL-CN0352-EB1Z_IO, Li-ion Battery Charging and Discharging Controlling Circuit

Cost Effective, Multichannel Lithium Ion Battery Testing System

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CN0352

Cost Effective, Multichannel Lithium Ion Battery Testing System

CN0352

Circuits from the lab

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Cost Effective, Multichannel Lithium Ion Battery Testing System

Features and Benefits

  • Expandable 8-Channel Lithium Ion Battery Tester
  • Integrated Fast Charging/Discharging Battery Management
  • Precision Analog Microcontroller for Data Acquisition and Control
View Detailed Reference Design external link

Design & Integration Tools

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ZIP

15.04 M

Figure 1. High Performance Conductivity Measurement System

Fully Automatic High Performance Conductivity Measurement System

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CN0359

Fully Automatic High Performance Conductivity Measurement System

CN0359

Circuits from the lab

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Fully Automatic High Performance Conductivity Measurement System

Features and Benefits

  • Conductivity Range of 0.1 μS to 10 S
  • Automatic Measurement Ranging
  • 2- or 4-wire Conductivity Probe Compatible
  • External Temperature Compensation
  • Standalone Operation and Control
View Detailed Reference Design external link

Design & Integration Tools

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ZIP

6.65 M

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