Datasheet.kr   

AD7147A 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 AD7147A은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 AD7147A 자료 제공

부품번호 AD7147A 기능
기능 CapTouch Programmable Controller
제조업체 Analog Devices
로고 Analog Devices 로고


AD7147A 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 30 페이지수

미리보기를 사용할 수 없습니다

AD7147A 데이터시트, 핀배열, 회로
www.DataSheet4U.com
CapTouch Programmable Controller for
Single-Electrode Capacitance Sensors
AD7147A
FEATURES
Programmable capacitance-to-digital converter (CDC)
Femtofarad (ff) resolution
13 capacitance sensor inputs
9 ms update rate, all 13 sensor inputs
No external RC components required
Automatic conversion sequencer
On-chip automatic calibration logic
Automatic compensation for environmental changes
Automatic adaptive threshold and sensitivity levels
Register map is compatible with the AD714x
On-chip RAM to store calibration data
Serial peripheral interface (SPI) (AD7147A)
I2C-compatible serial interface (AD7147A-1)
Separate VDRIVE level for serial interface
Interrupt output and general-purpose input/output (GPIO)
25-ball, 2.3 mm × 2.1 mm WLCSP
2.6 V to 3.6 V supply voltage
Low operating current
Full power mode: 1 mA
Low power mode: 28.96 μA
APPLICATIONS
Cell phones
Personal music and multimedia players
Smart handheld devices
Television, A/V, and remote controls
Gaming consoles
Digital still cameras
GENERAL DESCRIPTION
The AD7147A CapTouch™ controller is designed for use with
capacitance sensors implementing functions such as buttons,
scroll bars, and wheels. The sensors need only one PCB layer,
enabling ultrathin applications.
The AD7147A is an integrated CDC with on-chip environmen-
tal calibration. The CDC has 13 inputs channeled through a
switch matrix to a 16-bit, 250 kHz sigma-delta (Σ-Δ) converter.
The CDC is capable of sensing changes in the capacitance of the
external sensors and uses this information to register a sensor
activation. By programming the registers, the user has full control
over the CDC setup.
High resolution sensors require minor software to run on the
host processor and may require two PCB layers.
CIN0 D3
CIN1 A3
CIN2 B3
CIN3 A4
CIN4 C3
CIN5 A5
CIN6 B4
CIN7 B5
CIN8 C4
CIN9 C5
CIN10 D4
CIN11 D5
CIN12 E5
FUNCTIONAL BLOCK DIAGRAM
ACSHIELD VCC GND
E4 D2 E2
BIAS
E3
POWER-ON
RESET LOGIC
EXCITATION
SOURCE
AD7147A
CALIBRATION
RAM
16-BIT
Σ-Δ
CDC
CALIBRATION
ENGINE
CONTROL
AND DATA
REGISTERS
VDRIVE C2
SERIAL INTERFACE
AND CONTROL LOGIC
INTERRUPT
AND GPIO
LOGIC
B2 NC
A2 GPIO
E1 D1 C1 B1
A1
SDO SDI SCLK CS
(SDA) (ADD0)
(ADD1)
INT
NOTES
1. PIN NAMES IN PARENTHESES ARE FOR THE AD7147A-1.
Figure 1.
The AD7147A is designed for single electrode capacitance
sensors (grounded sensors). There is an active shield output to
minimize noise pickup in the sensor.
The AD7147A has on-chip calibration logic to compensate for
changes in the ambient environment. The calibration sequence
is performed automatically and at continuous intervals as long
as the sensors are not touched. This ensures that there are no
false or nonregistering touches on the external sensors due to a
changing environment.
The AD7147A has an SPI-compatible serial interface, and the
AD7147A-1 has an I2C®-compatible serial interface. Both parts
have an interrupt output, as well as a GPIO. There is a VDRIVE pin
to set the voltage level for the serial interface independent of VCC.
The AD7147A is available in a 25-ball, 2.3 mm × 2.1 mm
WLCSP and operates from a 2.6 V to 3.6 V supply. The operating
current consumption in low power mode is typically 28.96 μA
for 13 sensors.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2009 Analog Devices, Inc. All rights reserved.




AD7147A pdf, 반도체, 판매, 대치품
AD7147A
www.DataSheet4U.com
AVERAGE CURRENT SPECIFICATIONS
Table 2. Typical Average Current in Low Power Mode1
Low Power Decimation
Current Values of Conversion Stages (μA)
Mode Delay Rate
123456 7 8 9
200 ms
64
22.27 26.53 30.77 34.98 39.15 43.29 47.40 51.48 55.53
128 27.95 36.37 44.66 52.84 60.89 68.82 76.64 84.34 91.94
256 39.15 55.53 71.44 86.89 101.9 116.48 130.67 144.47 157.90
400 ms
64
18.89 21.04 23.19 25.32 27.45 29.57 31.68 33.78. 35.88
128 21.76 26.03 30.27 34.48 38.66 42.80 46.92 51.00 55.05
256 27.45 35.88 44.18 52.36 60.41 68.35 76.18 83.89 91.49
600 ms
64
17.76 19.20 20.63 22.06 23.49 24.91 26.33 27.75 29.16
128 19.68 22.54 25.39 28.22 31.04 33.85 36.64 39.42 42.18
256 23.49 29.16 34.78 40.34 45.84 51.29 56.69 62.03 67.32
800 ms
64
17.20 18.28 19.35 20.43 21.50 22.57 23.64 24.71 25.78
128 18.63 20.79 22.93 25.07 27.20 29.32 31.43 33.53 35.63
256 21.50 25.78 30.02 34.23 38.41 42.56 46.67 50.76 54.82
10
59.55
99.42
170.98
37.96
59.08
98.98
30.57
44.93
72.56
26.84
37.72
58.84
11
63.54
106.80
183.71
40.04
63.07
106.37
31.98
47.67
77.75
27.90
39.80
62.84
12
67.51
114.08
196.11
42.11
67.04
113.65
33.38
50.39
82.89
28.96
41.87
66.80
1 VCC = 3.3 V, TA = 25°C, load = 50 pF.
Table 3. Maximum Average Current in Low Power Mode1
Low Power Decimation
Current Values of Conversion Stages (μA)
Mode Delay Rate
1234 5 6 7 8 9
200 ms
64
32.62 38.12 43.58 48.99 54.35 59.67 64.95 70.18 75.37
128 39.95 50.78 61.44 71.92 82.23 92.37 102.36 112.18 121.85
256 54.35 75.37 95.72 115.42 134.51 153.02 170.96 188.38 205.28
400 ms
64
28.32 31.10 33.86 36.61 39.35 42.08 44.80 47.50 50.19
128 32.02 37.53 42.99 48.40 53.77 59.09 64.38 69.61 74.81
256 39.35 50.19 60.86 71.35 81.67 91.82 101.82 111.65 121.33
600 ms
64
26.88 28.74 30.59 32.43 34.27 36.11 37.94 39.76 41.58
128 29.36 33.05 36.72 40.37 44.00 47.60 51.19 54.76 58.31
256 34.27 41.58 48.80 55.95 63.01 70.00 76.92 83.76 90.52
800 ms
64
26.16 27.56 28.95 30.33 31.72 33.10 34.48 35.85 37.23
128 28.02 30.80 33.56 36.31 39.05 41.78 44.50 47.21 49.90
256 31.72 37.23 42.69 48.11 53.48 58.80 64.09 69.33 74.53
10
80.52
131.27
221.70
52.88
79.96
130.86
43.39
61.84
97.21
38.60
52.59
79.68
11
85.63
140.74
237.65
55.55
85.07
140.24
45.20
65.35
103.83
39.96
55.26
84.80
12
90.69
149.97
253.15
58.21
90.14
149.47
47.00
68.84
110.39
41.33
57.92
89.87
1 VCC = 3.6 V, TA = −40°C to +85°C, load = 50 pF.
Rev. 0 | Page 4 of 68

4페이지










AD7147A 전자부품, 판매, 대치품
ABSOLUTE MAXIMUM RATINGS
Table 6.
Parameter
VCC to GND
Analog Input Voltage to GND
Digital Input Voltage to GND
Digital Output Voltage to GND
Input Current to Any Pin Except Supplies1
ESD Rating
BIAS and ACSHIELD Pins (HBM Contact
and Air Discharge)
All Other Pins (HBM Contact)
Operating Temperature Range
Storage Temperature Range
Junction Temperature
WLCSP
Power Dissipation
θJA Thermal Impedance
IR Reflow Peak Temperature
Lead Temperature (Soldering, 10 sec)
Rating
−0.3 V to +3.6 V
−0.3 V to VCC + 0.3 V
−0.3 V to VDRIVE + 0.3 V
−0.3 V to VDRIVE + 0.3 V
10 mA
8 kV
2 kV
−40°C to +105°C
−65°C to +150°C
150°C
1W
65°C/W
260°C (± 0.5°C)
300°C
1 Transient currents of up to 100 mA do not cause SCR latch-up.
AD7147Awww.DataSheet4U.com
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
Rev. 0 | Page 7 of 68

7페이지


구       성 총 30 페이지수
다운로드[ AD7147A.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
AD7147

CapTouch Programmable Controller

Analog Devices
Analog Devices
AD7147A

CapTouch Programmable Controller

Analog Devices
Analog Devices

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵