ADuCM362
Low Power, Precision Analog Microcontroller with Dual Sigma-Delta ADCs, ARM Cortex-M3
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Features
- Pin compatible with the ADuCM360/ADuCM361
- Analog input/output
- Dual 24-bit ADCs
- 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 both ADCs
- Two 24-bit multichannel ADCs (ADC0 and 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 both ADCs
- 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
- See Data Sheet for additional information
ADuCM362-EP Supports defense and aerospace applications (AQEC standard)
- Download ADuCM362-EP data sheet (pdf)
- Military temperature range (−55°C to +125°C)
- Controlled manufacturing baseline
- One assembly/test site
- One fabrication site
- Product change notification
- Qualification data available on request
- V62/21606 DSCC Drawing Number
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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
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ADuCM362
Documentation
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Data Sheet
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ADuCM362/ADuCM363: Low Power, Precision Analog Microcontroller with Dual Sigma-Delta ADCs, ARM Cortex-M3 Data Sheet (Rev.0)
ADuCM362/ADuCM363: 低消費電力、デュアル・シグマ・デルタ ADC 搭載の 高精度アナログ・マイクロコントローラ （MicroConverter）、ARM Cortex-M3
ADuCM362-EP: Low Power, Precision Analog Microcontroller with Dual Sigma-Delta ADC, ARM Cortex-M3 Data Sheet (Rev.0)
User Guide
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895.68 K
Application Note
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Frequently Asked Question
1
Documentation
Data Sheet 3
User Guide 3
Application Note 3
Frequently Asked Question 1
Circuit Note 2
Webcast 1
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1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
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| ADUCM362BCPZ128 |
48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)
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| ADUCM362BCPZ128RL7 |
48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)
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| ADUCM362BCPZ256 |
48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)
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| ADUCM362BCPZ256RL7 |
48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)
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| ADUCM362TCPZ56EPR7 |
48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)
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- ADUCM362BCPZ128
- Pin/Package Drawing
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48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- ADUCM362BCPZ128RL7
- Pin/Package Drawing
-
48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
- ADUCM362BCPZ256
- Pin/Package Drawing
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48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- ADUCM362BCPZ256RL7
- Pin/Package Drawing
-
48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- ADUCM362TCPZ56EPR7
- Pin/Package Drawing
-
48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
Nov 10, 2022
- 22_0277
Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages
ADUCM362BCPZ128
PRODUCTION
ADUCM362BCPZ128RL7
PRODUCTION
ADUCM362BCPZ256
PRODUCTION
ADUCM362BCPZ256RL7
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Nov 10, 2022
- 22_0277
Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages
ADUCM362BCPZ128
PRODUCTION
ADUCM362BCPZ128RL7
PRODUCTION
ADUCM362BCPZ256
PRODUCTION
ADUCM362BCPZ256RL7
PRODUCTION
Software & Part Ecosystem
| Parts | Product Life Cycle | Description | ||
|---|---|---|---|---|
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4-20mA Current Loop D/A Converters3 |
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PRODUCTION |
Single Channel, 12-Bit, Current Source & Voltage Output DAC, HART Connectivity |
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PRODUCTION |
Single Channel, 16-Bit, Current Source & Voltage Output DAC, HART Connectivity |
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PRODUCTION |
16-Bit, Serial Input, Loop-Powered, 4mA to 20mA DAC |
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Digital Temperature Sensors1 |
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PRODUCTION |
±0.5°C Accurate, 16-Bit Digital I2C Temperature Sensor |
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HART Interface Solutions2 |
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PRODUCTION |
Low Power HART Modem |
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PRODUCTION |
Low Power HART Modem with Precision Internal Oscillator |
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Internal Power Switch Buck Regulators1 |
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RECOMMENDED FOR NEW DESIGNS |
50 mA, 60 V, High Efficiency Buck Regulator |
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Standard Digital Isolators1 |
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RECOMMENDED FOR NEW DESIGNS |
Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality) |
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Evaluation Kits 1
EVAL-ADuCM362-ADuCM363
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 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.
Resources
Evaluation Kits1
Tools & Simulations 3
Design Tool
Design Tool
Design Tool
ADuCM362/ADuCM363 Evaluation Software
Reference Designs 7
CN0338
NDIR Thermopile-Based Gas Sensing Circuit
Circuits from the lab
Info:Circuits from the lab
CN0267
Complete 4 mA to 20 mA Loop Powered Field Instrument with HART Interface
Circuits from the lab
Info:Circuits from the lab
Resources
CN0221
USB - Based, Thermocouple Temperature Measurement System Using ARM Cortex - M3
Circuits from the lab
Info:Circuits from the lab
CN0352
Cost Effective, Multichannel Lithium Ion Battery Testing System
Circuits from the lab
Info:Circuits from the lab
CN0300
12-Bit, 4-20mA Loop-Powered Thermocouple Measurement System Using ARM Cortex-M3
Circuits from the lab
Info:Circuits from the lab
CN0359
Fully Automatic High Performance Conductivity Measurement System
Circuits from the lab
Info:Circuits from the lab
Part Used 16
CN0319
14-Bit, 4-20 mA, Loop Powered, Thermocouple Temperature Measurement System Using ARM Cortex-M3
Circuits from the lab
Info:Circuits from the lab
Reference Designs7
CN0338
NDIR Thermopile-Based Gas Sensing Circuit
CN0267
Complete 4 mA to 20 mA Loop Powered Field Instrument with HART Interface
CN0221
USB - Based, Thermocouple Temperature Measurement System Using ARM Cortex - M3
CN0352
Cost Effective, Multichannel Lithium Ion Battery Testing System
CN0300
12-Bit, 4-20mA Loop-Powered Thermocouple Measurement System Using ARM Cortex-M3
CN0359
Fully Automatic High Performance Conductivity Measurement System
CN0319
14-Bit, 4-20 mA, Loop Powered, Thermocouple Temperature Measurement System Using ARM Cortex-M3
