MAX11359AETL Maxim Integrated, MAX11359AETL Datasheet - Page 53

• Manufacturer Part Number: MAX11359AETL
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX11359AETL

• Number Of Channels: 10
• Architecture: Sigma-Delta
• Conversion Rate: 10 SPs to 512 SPs
• Resolution: 16 bit
• Input Type: Differential
• Interface Type: 4-Wire Serial, Microwire, QSPI, SPI
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Power Dissipation: 2051.3 mW
• Number Of Converters: 1
• Voltage Reference: 1.251 V 1.996 V, 2.422 V

The temperature-sensor control register controls the
internal and external temperature measurement.
IMUX<1:0>: Internal current-source MUX bits. Selects
the pin to be driven by the internal current sources as
shown in Table 20. The power-on default is 00.
This register is the internal temperature sensor calibra-
tion register.
TGAIN<7:0>: Factory-preset temperature gain correction
coefficient bits. This is the linear scaling factor used to
derive absolute temperature values from temperature val-
ues measured with the internal temperature sensor
(T
optimized for an internal voltage reference of 1.25V using
the four-current method. The power-on default varies.
TEMP_CTRL Register (Power-On State: 0000 XXXX)
Table 20. Selecting Internal Current Source
TEMP_CAL Register (Power-On State: Varies By Factory Calibration)
Maxim Integrated
UPIOs, RTC, Voltage Monitors, and Temp Sensor
Internal temperature sensor
ACTUAL
TGAIN7
TOFFS5
IMUX1
16-Bit Data-Acquisition System with ADC, DAC,
CURRENT SOURCE
MSB
MSB
= T
Disabled
AIN1
AIN2
MEAS
TOFFS4
TGAIN6
IMUX0
x T
GAIN
+ T
OFFS
IMUX1
TGAIN5
TOFFS3
IVAL1
0
0
1
1
). The coefficients are
IMUX0
TGAIN4
TOFFS2
IVAL0
0
1
0
1
IVAL<1:0>: Internal current-source value bits. Selects
the value of the internal current source as shown in
Table 21. The power-on default is 00.
TOFFS<5:0>: Factory-preset temperature offset cor-
rection coefficient bits. This is the linear offset factor
used to derive absolute temperature values from tem-
perature values measured with the internal temperature
sensor (T
cients are optimized for an internal voltage reference of
1.25V using the four-current method. The power-on
default varies.
Table 21. Setting the Current Level
CURRENT
TOFFS1
TGAIN3
X
I
I
I
I
1
2
3
4
ACTUAL
TYPICAL CURRENT (µA)
TGAIN2
TOFFS0
= T
X
MEAS
120
60
64
4
MAX11359A
x T
GAIN
TGAIN1
X
X
+ T
OFFS
IVAL1
0
0
1
1
). The coeffi-
TGAIN0
LSB
LSB
X
X
IVAL0
0
1
0
1
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