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AD7147 Datasheet(PDF) 10 Page - Analog Devices

Part # AD7147
Description  CapTouch Programmable Controller for Single-Electrode Capacitance Sensors
PDF  73 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7147 Datasheet(HTML) 10 Page - Analog Devices

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Data Sheet
AD7147
Rev. D | Page 9 of 72
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
PIN 1
INDICATOR
1
CIN6
2
CIN7
3
CIN8
4
CIN9
5
CIN10
6
CIN11
15 SCLK
16 CS
17 INT
18 GPIO
14 SDI
13 SDO
AD7147
TOP VIEW
(Not to Scale)
NOTES
1. THE EXPOSED PAD IS NOT CONNECTED INTERNALLY. FOR INCREASED
RELIABILITY OF THE SOLDER JOINTS AND MAXIMUM THERMAL CAPABILITY
IT IS RECOMMENDED THAT THE PAD BE SOLDERED TO THE GROUND PLANE.
Figure 5. AD7147 Pin Configuration
PIN 1
INDICATOR
1
CIN6
2
CIN7
3
CIN8
4
CIN9
5
CIN10
6
CIN11
15 SCLK
16 ADD1
17 INT
18 GPIO
14 ADD0
13 SDA
AD7147-1
TOP VIEW
(Not to Scale)
NOTES
1. THE EXPOSED PAD IS NOT CONNECTED INTERNALLY. FOR INCREASED
RELIABILITY OF THE SOLDER JOINTS AND MAXIMUM THERMAL CAPABILITY
IT IS RECOMMENDED THAT THE PAD BE SOLDERED TO THE GROUND PLANE.
Figure 6. AD7147-1 Pin Configuration
Table 7. Pin Function Descriptions
Pin No.
AD7147
AD7147-1
Mnemonic
Description
1
1
CIN6
Capacitance Sensor Input.
2
2
CIN7
Capacitance Sensor Input.
3
3
CIN8
Capacitance Sensor Input.
4
4
CIN9
Capacitance Sensor Input.
5
5
CIN10
Capacitance Sensor Input.
6
6
CIN11
Capacitance Sensor Input.
7
7
CIN12
Capacitance Sensor Input.
8
8
ACSHIELD
CDC Active Shield Output. Connect to external shield or plane.
9
9
BIAS
Bias Node for Internal Circuitry. Requires 100 nF capacitor to ground.
10
10
GND
Ground Reference Point for All Circuitry.
11
11
VCC
Supply Voltage.
12
12
VDRIVE
Serial Interface Operating Voltage Supply.
13
N/A
SDO
SPI Serial Data Output.
N/A
13
SDA
I2C Serial Data Input/Output. SDA requires pull-up resistor.
14
N/A
SDI
SPI Serial Data Input.
N/A
14
ADD0
I2C Address Bit 0.
15
15
SCLK
Clock Input for Serial Interface.
16
N/A
CS
SPI Chip Select Signal.
N/A
16
ADD1
I2C Address Bit 1.
17
17
INT
General-Purpose Open-Drain Interrupt Output. Programmable polarity; requires pull-up resistor.
18
18
GPIO
Programmable GPIO.
19
19
CIN0
Capacitance Sensor Input.
20
20
CIN1
Capacitance Sensor Input.
21
21
CIN2
Capacitance Sensor Input.
22
22
CIN3
Capacitance Sensor Input.
23
23
CIN4
Capacitance Sensor Input.
24
24
CIN5
Capacitance Sensor Input.



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