I2C-ADC Datasheet, PDF (3/7 Pages) List of Unclassifed Manufacturers – I2C-ADCTM I2C 12-Bit, 8-CH ANALOG-TO-DIGITAL

I2C-ADC^TM I²C 12-Bit, 8-CH ANALOG-TO-DIGITAL
CONVERTER User Manual
Pin Configuration
CH0 (1)
CH1 (2)
CH2 (3)
CH3 (4)
CH4 (5)
CH5 (6)
GND (7)
(14) VCC
(13) REF
(12) SDA
(11) SCL
(10) NC
(9) CH7
(8) CH6
Pin No.
1-6
7
8-9
10
11
12
13
14
Name
CH0 – CH5
GND
CH6 – CH7
NC
SCL
SDA
REF
VCC
Type
Input
PWR
Input
NC
Input
I/O
Input
PWR
Description
Analog input channel 0 to 5
Supply ground
Analog input channel 6 to 7
No connect
Serial clock line
Serial data line
External reference input
Supply voltage
Interfaces
Power:
The I2C-ADC board needs an external
2.7VDC – 5.0VDC supply.
• VCC: is an input power 2.7VDC –
5.0VDC to I2C-ADC board.
• GND: is a common ground for
every pin. This pin MUST be
connected to ground of the external
power supply.
Analog input pins:
There are eight analog input pins. When
the converter enters the hold mode, the
voltage on the selected CHx pin is
captured on the internal capacitor array.
During the sample period, the source
must charge the internal sampling
capacitor (typically 25pF). The amount of
charge transfer from the analog source to
the converter is a function of conversion
rate.
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