ADUC7028
Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI® MCU
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Features
- Analog I/O
Multichannel, 12-bit, 1 MSPS ADC
Up to 16 ADC channels
Fully differential and single-ended modes
0 V to VREF analog input range12-bit voltage output DACs
Up to 4 DAC outputs available
On-chip voltage reference
On-chip temperature sensor (±3°C)
Voltage comparator
- Microcontroller
ARM7TDMI core, 16-bit/32-bit RISC architecture
JTAG port supports code download and debug - Clocking options
Trimmed on-chip oscillator (±3%)
External watch crystal
External clock source up to 44 MHz
41.78 MHz PLL with programmable divider - See datasheet for additional features
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The ADuC7019 / ADuC7020 / ADuC7021 / ADuC7022 / ADuC7024 / ADuC7025 / ADuC7026 / ADuC7027 / ADuC7028 / ADuC7029 are fully integrated, 1 MSPS, 12-bit data acquisition systems incorporating high performance multichannel ADCs, 16-bit/32-bit MCUs, and Flash®/EE memory on a single chip.
The ADC consists of up to 12 single-ended inputs. An additional four inputs are available but are multiplexed with the four DAC output pins. The four DAC outputs are available only on certain models (ADuC7020, ADuC7026, ADuC7028, and ADuC7029). However, in many cases where the DAC outputs are not present, these pins can still be used as additional ADC inputs, giving a maximum of 16 ADC input channels. The ADC can operate in single-ended or differential input mode. The ADC input voltage is 0 V to VREF. A low drift band gap reference, temperature sensor, and voltage comparator complete the ADC peripheral set.
Depending on the part model, up to four buffered voltage output DACs are available on-chip. The DAC output range is programmable to one of three voltage ranges.
The devices operate from an on-chip oscillator and a PLL generating an internal high frequency clock of 41.78 MHz (UCLK). This clock is routed through a programmable clock divider from which the MCU core clock operating frequency is generated. The microcontroller core is an ARM7TDMI®, 16-bit/32-bit RISC machine, which offers up to 41 MIPS peak performance. Eight kilobytes of SRAM and 62 kilobytes of nonvolatile Flash/EE memory are provided on-chip. The ARM7TDMI core views all memory and registers as a single linear array.
On-chip factory firmware supports in-circuit serial download via the UART or I2 C serial interface port; nonintrusive emulation is also supported via the JTAG interface. These features are incorporated into a low cost QuickStart™ development system supporting this MicroConverter® family.
The parts operate from 2.7 V to 3.6 V and are specified over an industrial temperature range of −40°C to +125°C. When operating at 41.78 MHz, the power dissipation is typically 120 mW. The ADuC7019/ADuC7020/ADuC7021/ADuC7022/ADuC7024/ADuC7025/ADuC7026/ADuC7027/ADuC7028/ADuC7029 are available in a variety of memory models and packages (see Ordering Guide).
APPLICATIONS
- Industrial control and automation systems
- Smart sensors, precision instrumentation
- Base station systems, optical networking
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
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Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
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ADUC7028
Documentation
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Data Sheet
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ADuC70xx Series: Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU Data Sheet (Rev.H)
ADuC70xxシリーズ: 高精度アナログ・マイクロコントローラ、12ビット・アナログI/O、ARM7TDMI® MCU (Rev.A)
Application Note
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Data Sheet 1
Application Note 3
Technical Articles 5
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 |
|---|---|---|---|
| ADUC7028BBCZ62 |
64-Ball CSPBGA (6mm x 6mm x 1.4mm)
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| ADUC7028BBCZ62-RL |
64-Ball CSPBGA (6mm x 6mm x 1.4mm)
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- ADUC7028BBCZ62
- Pin/Package Drawing
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64-Ball CSPBGA (6mm x 6mm x 1.4mm)
- 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
- ADUC7028BBCZ62-RL
- Pin/Package Drawing
-
64-Ball CSPBGA (6mm x 6mm x 1.4mm)
- Documentation
-
HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
Software & Part Ecosystem
Evaluation Kits 1
EVAL-ADUC7028
ADuC7028 QuickStart Plus Development System
Product Detail
The QuickStart Kits for the ADuC702x Precision Analog Microcontrollers feature debug via UART and an assembly & C-source debugging environment.
Resources
Software
ZIP
ZIP
1.34 M
ZIP
1.17 M
ZIP
1.29 M
ZIP
Evaluation Kits1
Reference Designs 1
CN0153
USB Based Temperature Monitor Using the ADuC7122 Precision Analog Microcontroller and an External Thermistor
Circuits from the lab
Info:Circuits from the lab
Part Used 15
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