MAX110BEAP Maxim Integrated, MAX110BEAP Datasheet - Page 16
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MAX110BEAP
Manufacturer Part Number
MAX110BEAP
Description
Analog to Digital Converters - ADC
Manufacturer
Maxim Integrated
Datasheet
1.MAX111AEAP-T.pdf
(24 pages)
Specifications of MAX110BEAP
Number Of Channels
2
Architecture
Sigma-Delta
Conversion Rate
0.05 KSPs
Resolution
14 bit
Input Type
Single-Ended/Differential
Snr
No
Interface Type
QSPI, Serial (SPI, Microwire)
Operating Supply Voltage
+/- 5V
Maximum Operating Temperature
+ 85 C
Package / Case
SSOP-20
Maximum Power Dissipation
842 mW
Minimum Operating Temperature
- 40 C
Number Of Converters
1
Voltage Reference
5.3 V
Low-Cost, 2-Channel, ±14-Bit Serial ADCs
Table 3. Procedure to Calibrate the ADC
16
Table 2. Allowable Input Multiplexer Configurations
X = Don't Care
X = Don't Care
CAL
STEP
X
0
0
0
0
1
1
1
2
3
______________________________________________________________________________________
NUL
0
0
1
1
1
0
X
Sets the new conversion speed (if required)
and performs an offset correction conversion
with the internal ADC inputs shorted to REF-.
The result is stored in the null register.
(This step also selects the speed/resolution
for the ADC.)
Performs a gain-calibration conversion with
the null register contents as the starting value.
The result is stored in the calibration register.
Performs an offset-null conversion with the
internal ADC inputs shorted to the selected
input channel's negative input (IN1- or IN2-).
The next operation performs the first signal
conversion with the new setup.
CHS
X
X
X
0
1
0
1
N N O O - - O O P P
1
1
1
1
1
1
0
DESCRIPTION
ADC IN+
Change
REF+
IN1+
IN2+
REF-
IN1-
IN2-
No
ADC IN-
Change
REF-
REF-
IN1-
IN2-
IN1-
IN2-
No
Channel 1 connected to ADC inputs. Conversion begins when CS returns high.
Channel 2 connected to ADC inputs. Conversion begins when CS returns high.
IN1- connected to the ADC inputs; offset-null mode selected. Autonull conversion
begins when CS returns high, and the results are stored in the null register.
IN2- connected to the ADC inputs; offset-null mode selected. Autonull conversion
begins when CS returns high, and the results are stored in the null register.
REF- connected to the ADC inputs; offset-null mode selected. Autonull conversion
begins when CS returns high, and the results are stored in the null register.
REF+ and REF- connected to the ADC inputs; gain-calibration mode
selected. Autocal conversion begins when CS returns high, and the results are
stored in the 16-bit I/O register.
Input control word is not transferred to the control register. ADC
configuration remains unchanged and no new conversion starts when CS
returns high.
N N O O - - O O P P
1
1
1
Used
Not
00
00
00
CONV1-
CONV4
Change
Change
New
Data
No
No
DV2 &
DESCRIPTION
DV4
CONTROL WORD
XX
XX
XX
Used
Not
00
00
00
CHS
or
X
X
0
1
CAL
1
1
0
NUL
1
0
1
PDX
0
0
0
PD
0
0
0