ADUC7060 Datasheet, PDF (1/108 Pages) Analog Devices – Low Power, Precision Analog Microcontroller, Dual Sigma-Delta ADCs, Flash/EE, ARM7TDMI

Low Power, Precision Analog Microcontroller,
Dual Sigma-Delta ADCs, Flash/EE, ARM7TDMI
ADuC7060/ADuC7061
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
Low power operation mode
Primary (24-bit) ADC channel
2 differential pairs or 4 single-ended channels
PGA (1 to 512) input stage
Selectable input range: ±2.34 mV to ±1.2 V
30 nV rms noise
Auxiliary (24-bit) ADC: 4 differential pairs or 7 single-
ended channels
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
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
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
Watchdog timer
Vectored 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 V compliant
Power
AVDD/DVDD specified for 2.5 V (±5%)
Active mode: 2.74 mA (@ 640 kHz, ADC0 active)
10 mA (@ 10.24 MHz, both ADCs active)
Rev. B
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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
Derivatives
32-lead LFCSP (ADuC7061)
48-lead LQFP and 48-lead LFCSP (ADuC7060)
APPLICATIONS
Industrial automation and process control
Intelligent, precision sensing systems, 4 mA to 20 mA
loop-based smart sensors
GENERAL DESCRIPTION
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.
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.
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.
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.
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