AD7147A Analog Devices, AD7147A Datasheet - Page 8

• Manufacturer Part Number: AD7147A
• Manufacturer: Analog Devices

Specifications of AD7147A

• Resolution (bits): 16bit
• # Chan: 13
• Sample Rate: 111SPS
• Interface: I²C/Ser 2-Wire,Ser,SPI
• Analog Input Type: Capacitive
• Ain Range: ± 8 pF (Delta C)
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

AD7147A
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 7. Pin Function Descriptions
AD7147A
B4
B5
C4
C5
D4
D5
E5
E4
E3
E2
D2
C2
E1
N/A
D1
N/A
C1
B1
N/A
A1
A2
D3
A3
B3
A4
C3
A5
B2
Pin No.
AD7147A-1
B4
B5
C4
C5
D4
D5
E5
E4
E3
E2
D2
C2
N/A
E1
N/A
D1
C1
N/A
B1
A1
A2
D3
A3
B3
A4
C3
A5
B2
NOTES
1. TP DENOTES FACTORY TEST POINT.
A
B
C
D
E
Figure 5. AD7147A Pin Configuration
BALL A1
INDICATOR
SCLK
SDO
SDI
INT
CS
1
V
GPIO
GND
(BALL SIDE DOWN)
DRIVE
V
TP
2
CC
Not to Scale
TOP VIEW
Mnemonic
CIN6
CIN7
CIN8
CIN9
CIN10
CIN11
CIN12
AC
BIAS
GND
V
V
SDO
SDA
SDI
ADD0
SCLK
CS
ADD1
INT
GPIO
CIN0
CIN1
CIN2
CIN3
CIN4
CIN5
CIN1
CIN2
CIN4
CIN0
BIAS
CC
DRIVE
3
SHIELD
AC
CIN10 CIN11
CIN3
CIN6
CIN8
SHIELD
4
CIN12
CIN5
CIN7
CIN9
5
Description
Capacitance Sensor Input.
Capacitance Sensor Input.
Capacitance Sensor Input.
Capacitance Sensor Input.
Capacitance Sensor Input.
Capacitance Sensor Input.
Capacitance Sensor Input.
CDC Active Shield Output. Connect to external shield or plane.
Bias Node for Internal Circuitry. Requires 100 nF capacitor to ground.
Ground Reference Point for All Circuitry.
Supply Voltage.
Serial Interface Operating Voltage Supply.
SPI Serial Data Output.
I
SPI Serial Data Input.
I
Clock Input for Serial Interface.
SPI Chip Select Signal.
I
General-Purpose Open-Drain Interrupt Output. Programmable polarity; requires pull-up resistor.
Programmable General-Purpose Input/Output.
Capacitance Sensor Input.
Capacitance Sensor Input.
Capacitance Sensor Input.
Capacitance Sensor Input.
Capacitance Sensor Input.
Capacitance Sensor Input.
Factory Test Point Only. Tie to ground.
2
2
2
C Serial Data Input/Output. SDA requires pull-up resistor.
C Address Bit 0.
C Address Bit 1.
Rev. B | Page 8 of 68
NOTES
1. TP DENOTES FACTORY TEST POINT.
A
B
C
D
E
Figure 6. AD7147A-1 Pin Configuration
BALL A1
INDICATOR
ADD1
SCLK
ADD0
SDA
INT
1
V
GPIO
(BALL SIDE DOWN)
GND
DRIVE
V
TP
2
CC
Not to Scale
TOP VIEW
CIN1
CIN2
CIN4
CIN0
BIAS
3
AC
CIN10 CIN11
CIN3
CIN6
CIN8
SHIELD
4
CIN12
CIN5
CIN7
CIN9
5