MAXQ7670EVKIT+ Maxim Integrated Products, MAXQ7670EVKIT+ Datasheet - Page 17

• Manufacturer Part Number: MAXQ7670EVKIT+
• Description: KIT EVAL FOR MAXQ7670
• Manufacturer: Maxim Integrated Products
• Series: MAXQ®r
• Type: MCUr

Specifications of MAXQ7670EVKIT+

• Contents: Board
• For Use With/related Products: MAXQ7670
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAXQ7670 incorporates a 16-bit RISC arithmetic
logic unit (ALU) with a Harvard memory architecture
that addresses 64KB (32K x 16) of flash and 2048
bytes (1024 x 16) of RAM memory. This core combined
with digital and analog peripherals provide versatile
data-acquisition functions. The peripherals include up to
seven digital I/Os, a 4-wire SPI interface, a CAN 2.0B
bus, a JTAG interface, a timer, an integrated RC oscilla-
tor, two linear regulators, a watchdog timer, three
power-supply supervisors, a 10-bit 250ksps SAR ADC
with programmable-gain amplifier (PGA) and eight sin-
gle-ended or four differential multiplexed inputs. The
Figure 3. Simplified Analog Input Diagram (Eight Single-Ended Inputs)
P0.4/ADCCNV
______________________________________________________________________________________
REFADC
Detailed Description
AGND
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
PGA, 64KB Flash, and CAN Interface
3
Microcontroller with 10-Bit ADC,
ADCMX
2
MUX
8:1
1
MAXQ7670
0
1V/V OR
16V/V
PGA
PGG
power-efficient MAXQ20 µC core consumes less than
1mA/MIPS. Refer to the MAXQ7670 User’s Guide for
more detailed information on configuring and program-
ming the MAXQ7670.
The integrated 10-bit ADC employs an ultra-low-power
SAR-based conversion method and operates up to
250ksps with PGA = 1V/V (150.9ksps with PGA =
16V/V). The integrated 8-channel multiplexer (mux) and
PGA allow the ADC to measure eight single-ended (rel-
ative to AGND) or four fully differential analog inputs
with software-selectable input ranges through the PGA.
See Figures 3 and 4.
ADCE
CONVERSION
CONTROL
TIMER 0
10-BIT ADC
250ksps
ADCCD
CLOCK
1
ADC
DIV
0
10
ADCBY
ADCRDY
ADCBIP
ADCASD
DATA
BUS
2
ADCDUL
ACTL
1
Analog Input Peripheral
ADCCLK
SOURCE
0
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