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參數(shù)資料
型號(hào)： AD7992BRM-1
廠商： ANALOG DEVICES INC
元件分類(lèi)： ADC
英文描述： 2-Channel, 12-Bit ADC with I2C Compatible Interface in 10-Lead MSOP
中文描述： 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10
封裝： MO-187-BA, MSOP-10
文件頁(yè)數(shù)： 21/21頁(yè)
文件大小： 266K
代理商： AD7992BRM-1
AD7992
–21–
REV. PrH
PRELIMINARY TECHNICAL DATA
Mode 3 - Automatic Cycle Mode
An automatic conversion cycle can be selected and enabled
by writing a value to the Cycle Timer Register. A conver-
sion cycle interval can be set up on the AD7992 by pro-
gramming the relevant bits in the 3-bit Cycle Timer
Register as decoded in Table XIIb. When the Cycle
Timer register is programmed with any configuration
other than all 0’s, a conversion will take place every X ms,
depending on the configuration of these bits in the Cycle
Timer Register. There are 7 different cycle time intervals
to choose from as shown in Table XIIb. Once the conver-
sion has taken place the part powers down again until the
next conversion occurs. To exit this mode of operation the
user must program the Cycle Timer Register to contain
all 0’s. For cycle interval options see Table XIIb Cycle
Timer Intervals.
Figure 18. Mode 2 Sequence Operation
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
10-Lead MSOP (RM-10)
0.0197 (0.50)
BSC
0.120 (3.05)
0.112 (2.85)
0.122 (3.10)
0.114 (2.90)
10
6
5
1
0.199 (5.05)
0.187 (4.75)
PIN
1
0.122 (3.10)
0.114 (2.90)
0.012 (0.30)
0.006 (0.15)
0.037 (0.94)
0.031 (0.78)
SEATING
PLANE
0.043 (1.10)
MAX
0.006 (0.15)
0.002 (0.05)
0.028 (0.70)
0.016 (0.40)
0.009 (0.23)
0.005 (0.13)
6
0
o
0.120 (3.05)
0.112 (2.85)
o
To select channel(s) for operation in the cycle mode set
the corresponding channel(s) bits, D5 and D4, in the
Configuration Register. If both D5 and D4 are set to 1 in
the Configuration register, the ADC will automatically
cycle through the Channels, starting with the lowest chan-
nel and working its way up through the sequence. Once
the sequence is complete the ADC will start converting on
the lowest channel again, continuing to loop through the
sequence until the Cycle timer register contents are set to
all 0’s. This mode is useful for monitoring signals, e.g.
battery voltage, temperature etc, alerting only when the
limits are violated.
9
1
1
A
SCL
9
S
7-BIT ADDRESS
W
A
COMMAND/ADDRESS POINT BYTE
A
SDA
FIRST DATA BYTE (MSBs)
A
SECOND DATA BYTE (LSBs)
A
Sr
7-BIT ADDRESS
R
A
SDA
9
9
1
1
SCL
9
8
ACK BY
AD7992
ACK BY
AD7992
ACK BY
AD7992
ACK BY
MASTER
FIRST DATA BYTE (MSBs)
A
SECOND DATA BYTE (LSBs)
ACK BY
MASTER
ACK BY
MASTER
9
9
RESULT FROM CH1
RESULT FROM CH2
A/
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7992BRM-1REEL 制造商:Analog Devices 功能描述:ADC Single SAR 188ksps 12-bit Serial 10-Pin MSOP T/R
AD7992BRMZ-0 功能描述:IC ADC 12BIT 2CHAN I2C 10MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類(lèi)型:4 個(gè)單端，單極；2 個(gè)差分，單極 產(chǎn)品目錄頁(yè)面:1156 (CN2011-ZH PDF) 其它名稱(chēng):497-5435-6
AD7992BRMZ-0REEL 功能描述:IC ADC 12BIT 2CHAN I2C 10MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:16 個(gè)單端，雙極；8 個(gè)差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
AD7992BRMZ-1 功能描述:IC ADC 12BIT 2CHAN I2C 10-MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤(pán)（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類(lèi)型:8 個(gè)單端，單極 產(chǎn)品目錄頁(yè)面:892 (CN2011-ZH PDF) 其它名稱(chēng):296-25851-6
AD7992BRMZ-1-R2 制造商:Analog Devices 功能描述:
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