Datasheet > AD7156

AD7156

更新时间： 2024-02-22 11:02:34

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
28页	388K
描述
Ultralow Power, 1.8 V, 3 mm × 3 mm, 2-Channel Capacitance Converter

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数据手册

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AD7156 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SOIC
包装说明：	HVSON, SOLCC10,.12,20	针数：	10
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.55
模拟集成电路 - 其他类型：	ANALOG CIRCUIT	JESD-30 代码：	S-PDSO-N10
JESD-609代码：	e3	长度：	3 mm
湿度敏感等级：	3	功能数量：	1
端子数量：	10	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVSON	封装等效代码：	SOLCC10,.12,20
封装形状：	SQUARE	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	电源：	2/3.3 V
认证状态：	Not Qualified	座面最大高度：	0.85 mm
子类别：	Other Analog ICs	最大供电电流 (Isup)：	0.085 mA
最大供电电压 (Vsup)：	3.6 V	最小供电电压 (Vsup)：	1.8 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	3 mm
Base Number Matches：	1

AD7156 数据手册

AD7156

If a repeated start condition is encountered after the address

pointer byte, all peripherals connected to the bus respond exactly

as outlined previously for a start condition; that is, a repeated

start condition is treated the same as a start condition. When a

master device issues a stop condition, it relinquishes control of

the bus, allowing another master device to take control of the

bus. Therefore, a master wanting to retain control of the bus

issues successive start conditions known as repeated start

conditions.

GENERAL CALL

When a master issues a slave address consisting of seven 0s

with the eighth bit (R/W) set to 0, this is known as the general

call address. The general call address is for addressing every

device connected to the serial bus. The AD7156 acknowledges

this address and reads in the following data byte.

If the second byte is 0x06, the AD7156 is reset, completely

uploading all default values. The AD7156 does not respond

to the serial bus commands (do not acknowledge) during the

default values upload for approximately 2 ms.

AD7156 RESET

To reset the AD7156 without having to reset the entire serial

bus, an explicit reset command is provided. This uses a particular

address pointer word as a command word to reset the part and

upload all default settings. The AD7156 does not respond to the

serial bus commands (do not acknowledge) during the default

values upload for approximately 2 ms.

The AD7156 does not acknowledge any other general call

commands.

The reset command address word is 0xBF.

SDA

SCL

1 – 7

DATA

START ADDR

ACK SUBADDRESS ACK

ACK

STOP

R/W

Figure 40. Bus Data Transfer

WRITE

SEQUENCE

SLAVE ADDR A(S) SUB ADDR A(S)

LSB = 0

DATA

A(S)

DATA

A(M)

LSB = 1

READ

SEQUENCE

A(M)

SLAVE ADDR A(S)

SUB ADDR A(S)

SLAVE ADDR A(S)

DATA

A(S) = ACKNOWLEDGE BY SLAVE

A(M) = ACKNOWLEDGE BY MASTER

S = START BIT

P = STOP BIT

A(S) = NO ACKNOWLEDGE BY SLAVE

A(M) = NO ACKNOWLEDGE BY MASTER

Figure 41. Write and Read Sequences

Rev. 0 | Page 23 of 28

1...20 21 222324 25 26...28

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