MAX11311 Datasheet, PDF (10/51 Pages) Maxim Integrated Products – PIXI, 12-Port Programmable Mixed-Signal I/O with 12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO

MAX11311
PIXI, 12-Port Programmable Mixed-Signal I/O with
12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO
Power Supply Specifications
PARAMETER
V_AVDD
V_DVDD
V_AVDDIO
V_AVSSIO
V_AVDDIO to V_AVSSIO
I_AVDD
I_DVDD
I_AVDDIO
I_AVSSIO
SYMBOL
CONDITIONS
All ports in high-impedance mode
LPEN = 1
All ports in ADC-related modes
All ports in DAC-related modes
Serial interface in idle mode
All ports in mode 0
All ports in mode 0
MIN
4.75
1.62
V_AVDD
-12.0
V_AVDD
-400
TYP
14
11
17
18
MAX
5.25
5.50
15.75
0
24
18
2
150
UNITS
V
V
V
V
V
mA
mA
mA
mA
µA
µA
µA
Recommended VDDIO/VSSIO Supply Selection
ADC RANGE
-10V TO 0V
-5V TO +5V
0V TO +10V
-10V TO 0V
-5V TO +5V
0V TO +10V
V_AVDDIO = +5V
V_AVSSIO = -12V
V_AVDDIO = +7V
V_AVSSIO = -10V
V_AVDDIO = +12V
V_AVSSIO = -10V
V_AVDDIO = +5V
V_AVSSIO = -12V
V_AVDDIO = +7V
V_AVSSIO = -7V
V_AVDDIO = +12V
V_AVSSIO = -5V
V_AVDDIO = +10V
V_AVSSIO = -12V
V_AVDDIO = +10V
V_AVSSIO = -7V
V_AVDDIO = +12V
V_AVSSIO = -2V
0 TO 2.5V
V_AVDDIO = +5V
V_AVSSIO = -12V
V_AVDDIO = +7V
V_AVSSIO = -7V
V_AVDDIO = +12V
V_AVSSIO = -2V
The values of VAVDDIO ^{and V}AVSSIO ^{supply voltages depend on the application circuit and the device configuration.}
V_AVDDIO needs to be the maximum of those four values:
●● If one or more ports are in mode 3, 4, 5, 6, or 10 (DAC-related modes), V_AVDDIO must be set, at minimum, to the
value of the largest voltage driven by any of the ports set in those modes. For improved linearity, it is recommended
to set V_AVDDIO 2.0V above the largest voltage value.
●● If one or more ports are in mode 7, 8, or 9 (ADC-related modes), V_AVDDIO must be set, at minimum, to the value of
the largest voltage applied to any of the ports set in those modes.
●● If one or more ports are in mode 11 or 12 (Analog switch-related modes), V_AVDDIO must be set, at minimum, to
2.0V above the value of the largest voltage applied to any of the ports functioning as analog switch terminals.
●● V_AVDDIO cannot be set lower than V_AVDD.
V_AVSSIO needs to be the minimum of those four values:
●● If one or more ports are in mode 3, 4, 5, 6, or 10 (DAC-related modes), V_AVSSIO must be set, at maximum, to the
value of the lowest voltage driven by any of the ports set in those modes. For improved linearity, it is recommended
to set V_AVSSIO 2.0V below the lowest voltage value.
●● If one or more ports are in mode 7, 8, or 9 (ADC-related modes), V_AVSSIO must be set, at maximum, to the value
of the lowest voltage applied to any of the ports set in those modes.
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