MAX11300 Datasheet, PDF (25/54 Pages) Maxim Integrated Products – Up to 20 General-Purpose Digital I/Os

MAX11300
PIXI, 20-Port Programmable Mixed-Signal I/O with
12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO
ADC_INT_REF ADC_EXT_REF
PORT
SCALING
BLOCK
SEQUENCER
Figure 3. ADC with Single-Ended Input
REFERENCE
MUX
ADC
DIGITAL
CORE
12 BITS
UP TO 400ksps
CNVT
SPI
SERIAL
INTERFACE
INT
ADC_INT_REF ADC_EXT_REF
ANY
PORT
ANY OTHER
PORT
SCALING
BLOCK
SCALING
BLOCK
Figure 4. ADC with Differential Inputs
SEQUENCER
REFERENCE
MUX
ADC
DIGITAL
CORE
12 BITS
UP TO 400ksps
CNVT
SPI
SERIAL
INTERFACE
INT
ADC_INT_REF ADC_EXT_REF
ANY
PORT
ANY OTHER
PORT
SCALING
BLOCK
SCALING
BLOCK
SEQUENCER
REFERENCE
MUX
ADC
DIGITAL
CORE
CNVT
SPI
SERIAL
INTERFACE
INT
SCALING
BLOCK
DAC_REF
INTERNAL OR
EXTERNAL FOR
ALL PORTS
SEQUENCER
DAC
Figure 5. ADC with Pseudo-Differential Input Set by DAC
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