参数资料
型号: AD7147PACPZ-RL
厂商: Analog Devices Inc
文件页数: 2/73页
文件大小: 0K
描述: IC CAP-TO-DGTL CONV PROG 24LFCSP
标准包装: 5,000
系列: CapTouch™
类型: 电容数字转换器
分辨率(位): 16 b
采样率(每秒): 250k
数据接口: 串行,SPI?
电压电源: 单电源
电源电压: 2.6 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-VFQFN 裸露焊盘,CSP
供应商设备封装: 24-LFCSP-VQ(4x4)
包装: 带卷 (TR)
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
7
C
IN
12
8
A
C
S
H
IE
L
D
9
B
IA
S
11
V
C
12
V
D
R
IV
E
10
G
N
D
21
C
IN
2
22
C
IN
3
23
C
IN
4
24
C
IN
5
20
C
IN
1
19
C
IN
0
AD7147
TOP VIEW
(Not to Scale)
06
66
3-
00
5
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
7
C
IN
12
8
A
C
S
H
IE
L
D
9
B
IA
S
11
V
C
12
V
D
R
IV
E
10
G
N
D
21
C
IN
2
22
C
IN
3
23
C
IN
4
24
C
IN
5
20
C
IN
1
19
C
IN
0
AD7147-1
TOP VIEW
(Not to Scale)
06
66
3-
00
6
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
CIN6
Capacitance Sensor Input.
2
CIN7
Capacitance Sensor Input.
3
CIN8
Capacitance Sensor Input.
4
CIN9
Capacitance Sensor Input.
5
CIN10
Capacitance Sensor Input.
6
CIN11
Capacitance Sensor Input.
7
CIN12
Capacitance Sensor Input.
8
ACSHIELD
CDC Active Shield Output. Connect to external shield or plane.
9
BIAS
Bias Node for Internal Circuitry. Requires 100 nF capacitor to ground.
10
GND
Ground Reference Point for All Circuitry.
11
VCC
Supply Voltage.
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
SCLK
Clock Input for Serial Interface.
16
N/A
CS
SPI Chip Select Signal.
N/A
16
ADD1
I2C Address Bit 1.
17
INT
General-Purpose Open-Drain Interrupt Output. Programmable polarity; requires pull-up resistor.
18
GPIO
Programmable GPIO.
19
CIN0
Capacitance Sensor Input.
20
CIN1
Capacitance Sensor Input.
21
CIN2
Capacitance Sensor Input.
22
CIN3
Capacitance Sensor Input.
23
CIN4
Capacitance Sensor Input.
24
CIN5
Capacitance Sensor Input.
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