ADUC7126

RECOMMENDED FOR NEW DESIGNS

Precision Analog Microcontroller, 12-Bit Analog I/O, Large Memory, ARM7TDMI MCU with Enhanced IRQ Handler

Data Sheet (Rev. D) Product Selection Table

Part Models: 4
1ku List Price: Starting From $8.14

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Overview

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 range
12-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
See data sheet for additional features

The ADuC7124/ADuC7126 is a 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 ADC can operate in single-ended or differential input modes. 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. The DAC output range is programmable to one of three voltage ranges. The DAC outputs have an enhanced feature of being able to retain their output voltage during a watchdog or software reset sequence.

The devices operate from an on-chip oscillator and a PLL generating an internal high frequency clock of 41.78 MHz. 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. Thirty-two kilobytes of SRAM and 126 kB of nonvolatile Flash/EE memory are provided on-chip. The ARM7TDMI core views all memory and registers as a single linear array.

The ADuC7124 contains an advanced interrupt controller. The vectored interrupt controller (VIC) allows every interrupt to be assigned a priority level. It also supports nested interrupts to a maximum level of eight per IRQ and FIQ. When IRQ and FIQ interrupt sources are combined, a total of 16 nested interrupt levels are supported. On-chip factory firmware supports in-circuit download via the UART serial interface port or the I²C port, while 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 part contains a 16-bit PWM with six output signals. For communication purposes, the part contains 2×I²C channels that can be individually configured for Master or Slave mode. An SPI interface supporting both master and slave modes is also provided. Thirdly, 2×UART channels are provided. Each UART contains a configurable 16-bit FIFO with the receive and transmit buffers.

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 ADuC7124 is available in either 64-lead LFCSP or 80-lead LFQFP packages.

APPLICATIONS

Industrial control and automation systems
Smart sensors, precision instrumentation
Base station systems, optical networking
Patient monitoring

Part Models: 4
1ku List Price: Starting From $8.14

Documentation

Data Sheet 1

ADuC7124/ADuC1726: Precision Analog Microcontroller, 12-Bit Analog I/O, Large Memory, ARM7TDMI MCU with Enhanced IRQ Handler Datasheet (Rev.D) 10/25/2011
- ADuC7124/ADuC7126: Silicon Anomaly Data Sheet (Rev. B 9/2014)

Technical Articles 5

Precision Analog Microcontroller Simplifies Optical Transceiver Design 06/03/2004

Part 1: Simplifying Design of Industrial Process-Control Systems with PLC Evaluation Boards 09/10/2009

Part 2: Simplifying Design of Industrial Process-Control Systems with PLC Evaluation Boards 09/10/2009

Integrated Route Taken to Pulse Oximetry 12/26/2004

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
ADUC7126BSTZ126	80-Lead LQFP (12mm x 12mm x 1.4mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADUC7126BSTZ126-RL	80-Lead LQFP (12mm x 12mm x 1.4mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADUC7126BSTZ126I	80-Lead LQFP (12mm x 12mm x 1.4mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADUC7126BSTZ126IRL	80-Lead LQFP (12mm x 12mm x 1.4mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 7, 2014 - 14_0163 Data Sheet & Silicon Anomaly Sheet updates for ADuC7023, ADuC7121, ADuC7122, ADuC7124/6, ADuC7060/61, ADuCM360/1, ADuCM350 product
		PCN14_0163_Form Material_Report
ADUC7126BSTZ126	PRODUCTION
ADUC7126BSTZ126-RL	PRODUCTION
ADUC7126BSTZ126I	PRODUCTION
ADUC7126BSTZ126IRL	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Evaluation Kits

ADuC7126 QuickStart Plus Development System

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Product Details

The ADuC7126 is a fully integrated, 1 MSPS, 12-bit data acquisition system incorporating high performance multichannel ADCs, 16-bit/32-bit MCUs, and Flash/EE memory on a single chip.

The QuickStart Plus Kits for the ADuC7126 Precision Analog Microcontrollers feature debug via UART and an assembly & C-source debugging environment. In addition the QuickStart Plus Kit allows true non-intrusive JTAG emulation. These kits are intended for any new users who want to have a comprehensive hardware development environment.