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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX11300 Datasheet

20-Port Programmable Mixed-Signal I/O

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MAX11300
EVALUATION KIT AVAILABLE
PIXI, 20-Port Programmable Mixed-Signal I/O with
12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO
General Description
The MAX11300 integrates a PIXI™, 12-bit, multichannel,
analog-to-digital converter (ADC) and a 12-bit, multichannel,
buffered digital-to-analog converter (DAC) in a single
integrated circuit. This device offers 20 mixed-signal high-
voltage, bipolar ports, which are configurable as an ADC
analog input, a DAC analog output, a general-purpose
input (GPI), a general-purpose output (GPO), or an analog
switch terminal. One internal and two external temperature
sensors track junction and environmental temperature.
Adjacent pairs of ports are configurable as a logic-level
translator for open-drain devices or an analog switch.
PIXI ports provide highly flexible hardware configuration
for 12-bit mixed-signal applications. The MAX11300 is best
suited for applications that demand a mixture of analog and
digital functions. Each port is individually configurable with
up to four selectable voltage ranges within -10V to +10V.
The MAX11300 allows for the averaging of 2, 4, 8, 16, 32,
64, or 128 ADC samples from each ADC-configured port
to improve noise performance. A DAC-configured output
port can drive up to 25mA. The GPIO ports can be
programmed to user-defined logic levels, and a GPI
coupled with a GPO forms a logic-level translator.
Internal and external temperature measurements monitor
programmable conditions of minimum and maximum
temperature limits, using the interrupt to notify the host if one
or more conditions occur. The temperature measurement
results are made available through the serial interface.
The device features an internal, low-noise 2.5V voltage
reference and provides the option to use external voltage
references with separate inputs for the DAC and ADC.
The device uses a 4-wire, 20MHz, SPI-compatible serial
interface, operating from a 5V analog supply and a 1.8V
to 5.0V digital supply. The PIXI port supply voltages operate
from a wide range of -12.0V to +12.0V.
The MAX11300 is available in a 40-pin TQFN, 6mm x 6mm
package or a 48-pin TQFP, 7mm x 7mm package specified
over the -40°C to +105°C temperature range.
Applications
● Base Station RF Power Device Bias Controllers
● System Supervision and Control
● Power-Supply Monitoring
● Industrial Control and Automation
● Control for Optical Components
Benefits and Features
● 20 Configurable Mixed-Signal Ports Maximize Design
Flexibility Across Platforms
Up to 20 12-Bit ADC Inputs
• Single-Ended, Differential, or Pseudo-Differential
• Range Options: 0 to 2.5V, ±5V, 0 to +10V, -10V to 0V
• Programmable Sample Averaging Per ADC Port
• Unique Voltage Reference for Each ADC PIXI Port
Up to 20 12-Bit DAC Outputs
• Range Options: ±5V, 0 to +10V, -10V to 0V
• 25mA Current Drive Capability with Overcurrent
Protection
Up to 20 General-Purpose Digital I/Os
• 0 to +5V GPI Input Range
• 0 to +2.5V GPI Programmable Threshold Range
• 0 to +10V GPO Programmable Output Range
• Logic-Level Shifting Between Any Two Pins
60Ω Analog Switch Between Adjacent PIXI Ports
Internal/External Temperature Sensors, ±1˚C Accuracy
● Adapts to Specific Application Requirements and Allows
for Easy Reconfiguration as System Needs Change
● Configurability of Functions Enables Optimized PCB
Layout
● Reduces BOM Cost with Fewer Components in
Small Footprint
• 36mm2 40-Pin TQFN
• 49mm2 48-Pin TQFP
Ordering Information appears at end of data sheet.
PIXI is a trademark of Maxim Integrated Products, Inc.
19-7318; Rev 3; 4/16


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX11300 Datasheet

20-Port Programmable Mixed-Signal I/O

No Preview Available !

MAX11300
Functional Diagram
PIXI, 20-Port Programmable Mixed-Signal I/O with
12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO
CNVT
DOUT
CS
SCLK
DIN
DVDD DAC_REF ADC_INT_REF ADC_EXT_REF
AVDD
AVDDIO
INTERNAL
REFERENCE
SERIAL
INTERFACE
AND
DIGITAL
CORE
CLOCK
GENERATOR
2.5V
2.5V
MAX11300
TEMPERATURE
MONITORS
EXT AND INT
TEMP SENSORS
REFERENCE
MUX
ADC
DAC
GPI
GPO
DAC
SEQUENCER
ADC
SEQUENCER
20
20
20 PIXI PORT
MANAGER
20
20
D1P
D1N
D0P
D0N
PORT[x+1]
PORT[x]
(0 ≤ x ≤ 18)
INT DGND
AGND1 AGND
AVSSIO
www.maximintegrated.com
Maxim Integrated 2


Part Number MAX11300
Description 20-Port Programmable Mixed-Signal I/O
Maker Maxim
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MAX11300 Datasheet PDF






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