Low Power, Precision Analog Microcontroller
,
Dual Sigma-Delta ADCs, Flash/EE, ARM7TDMI
ADuC7060/ADuC7061
Packages and temperature range
Fully specified for −40°C to +125°C operation
32-lead LFCSP (5 mm × 5 mm)
48-lead LFCSP and LQFP
FEATURES
Analog input/output
Dual (24-bit) ADCs
Single-ended and differential inputs
Programmable ADC output rate (4 Hz to 8 kHz)
Programmable digital filters
Built-in system calibration
Derivatives
32-lead LFCSP (ADuC7061)
48-lead LQFP and 48-lead LFCSP (ADuC7060)
Low power operation mode
Primary (24-bit) ADC channel
APPLICATIONS
Industrial automation and process control
Intelligent, precision sensing systems, 4 mA to 20 mA
loop-based smart sensors
2 differential pairs or 4 single-ended channels
PGA (1 to 512) input stage
Selectable input range: 2.34 mꢀ to 1.2 ꢀ
30 nꢀ rms noise
GENERAL DESCRIPTION
Auxiliary (24-bit) ADC: 4 differential pairs or 7 single-
ended channels
The ADuC706x series are fully integrated, 8 kSPS, 24-bit data acqui-
sition systems incorporating high performance multichannel
sigma-delta (Σ-Δ) analog-to-digital converters (ADCs), 16-bit/
32-bit ARM7TDMI® MCU, and Flash/EE memory on a single chip.
On-chip precision reference ( 10 ppm/°C)
Programmable sensor excitation current sources
200 μA to 2 mA current source range
Single 14-bit voltage output DAC
Microcontroller
ARM7TDMI core, 16-/32-bit RISC architecture
JTAG port supports code download and debug
Multiple clocking options
The ADCs consist of a primary ADC with two differential pairs or
four single-ended channels and an auxiliary ADC with up to seven
channels. The ADCs operate in single-ended or differential input
mode. A single-channel buffered voltage output DAC is available
on chip. The DAC output range is programmable to one of four
voltage ranges.
Memory
32 kB (16 kB × 16) Flash/EE memory, including 2 kB kernel
4 kB (1 kB × 32) SRAM
Tools
In-circuit download, JTAG based debug
Low cost, QuickStart™ development system
Communications interfaces
The devices operate from an on-chip oscillator and a PLL gene-
rating an internal high frequency clock up to 10.24 MHz. The
microcontroller core is an ARM7TDMI, 16-bit/32-bit RISC
machine offering up to 10 MIPS peak performance; 4 kB of SRAM
and 32 kB of nonvolatile Flash/EE memory are provided on chip.
The ARM7TDMI core views all memory and registers as a single
linear array.
SPI interface (5 Mbps)
4-byte receive and transmit FIFOs
UART serial I/O and I2C (master/slave)
On-chip peripherals
4× general-purpose (capture) timers including
Wake-up timer
The ADuC706x contains four timers. Timer1 is a wake-up timer
with the ability to bring the part out of power saving mode. Timer2
is configurable as a watchdog timer. A 16-bit PWM with six output
channels is also provided. The ADuC706x 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 is supported. On-chip factory firmware
supports in-circuit serial download via the UART serial interface
ports and nonintrusive emulation via the JTAG interface. The parts
operate from 2.375 V to 2.625 V over an industrial temperature
range of −40°C to +125°C.
Watchdog timer
ꢀectored interrupt controller for FIQ and IRQ
8 priority levels for each interrupt type
Interrupt on edge or level external pin inputs
16-bit, 6-channel PWM
General-purpose inputs/outputs
Up to 14 GPIO pins that are fully 3.3 ꢀ compliant
Power
AꢀDD/DꢀDD specified for 2.5 ꢀ ( 5ꢁ)
Active mode: 2.74 mA (@ 640 kHz, ADC0 active)
10 mA (@ 10.24 MHz, both ADCs active)
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2009–2010 Analog Devices, Inc. All rights reserved.
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