AD7152BRMZ(Rev0) View Datasheet(PDF) - Analog Devices
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AD7152BRMZ Datasheet PDF : 24 Pages
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PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
AD7152/AD7153
GND 1
VDD 2
CIN1(–) 3
CIN1(+) 4
EXC2 5
10 SDA
AD7152
TOP VIEW
(Not to Scale)
9 SCL
8 CIN2(–)
7 CIN2(+)
6 EXC1
Figure 4. AD7152 Pin Configuration
GND 1
VDD 2
CIN1(–) 3
CIN1(+) 4
NC 5
10 SDA
AD7153 9 SCL
TOP VIEW 8 NC
(Not to Scale) 7 NC
6 EXC1
NC = NO CONNECT
Figure 5. AD7153 Pin Configuration
Table 4. Pin Function Descriptions
Pin No. Mnemonic Description
1
GND
Ground Pin.
2
VDD
Power Supply Voltage. This pin should be decoupled to GND, using a low impedance capacitor, for example, in
combination with a 10 μF tantalum and a 0.1 μF multilayer ceramic capacitor.
3
CIN1(–)
CDC Negative Capacitive Input of Channel 1. If not used, this pin can be left as an open circuit or connected to
GND. This pin is internally disconnected in single-ended CDC configuration.
4
CIN1(+)
CDC Positive Capacitive Input of Channel 1. If not used, this pin can be left as an open circuit or connected to GND.
5
EXC2/NC
AD7152: CDC Excitation Output for Channel 2. The measured capacitance is connected between one of the EXC
pins and one of the CIN pins. If not used, these pins should be left as an open circuit.
AD7153: No Connect. This pin must be left as an open circuit.
6
EXC1
CDC Excitation Output for Channel 1. The measured capacitance is connected between one of the EXC pins and
one of the CIN pins. If not used, these pins should be left as an open circuit.
7
CIN2(+)/NC AD7152: CDC Positive Capacitive Input of Channel 2. If not used, this pin can be left as an open circuit or
connected to GND.
AD7153: No Connect. This pin must be left as an open circuit.
8
CIN2(–)/NC AD7152: CDC Negative Capacitive Input of Channel 2. If not used, this pin can be left as an open circuit or
connected to GND. This pin is internally disconnected in single-ended CDC configuration.
AD7153: No Connect. This pin must be left as an open circuit.
9
SCL
Serial Interface Clock Input. Connects to the master clock line. Requires a pull-up resistor if one is not already
provided in the system.
10
SDA
Serial Interface Bidirectional Data. Connects to the master data line. Requires a pull-up resistor if one is not
provided elsewhere in the system.
Rev. 0 | Page 7 of 24
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