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參數(shù)資料
| 型號： | AD7708BRU |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 15/44頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 16BIT R-R 8/10CH 28-TSSOP |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 1.37k |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 3.84mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-TSSOP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 4 個(gè)差分，單極；4 個(gè)差分，雙極；8 個(gè)偽差分，單極；8 個(gè)偽差分，雙極 |
| 配用： | EVAL-AD7708EBZ-ND - BOARD EVAL FOR AD7708 |
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REV. 0
–22–
AD7708/AD7718
ON-CHIP REGISTERS
The AD7708 and AD7718 are controlled and configured via
a number of on-chip registers which are shown in Figure 15.
The first of these registers is the communications register
which is used to control all operations on these converters. All
communications with these parts must start with a write to
the communications register to specify the next operation to
be performed. After a power-on or RESET, the device defaults
to waiting for a write to the communications register. The
STATUS register contains information pertaining to the operat-
ing conditions of the converter. The STATUS register is a read
only register. The MODE register is used to configure the con-
version mode, calibration, chop enable/disable, reference select,
channel configuration and buffered or unbuffered operation on
the AINCOM analog input. The MODE register is a read/write
register. The ADC Control register is a read/write register used
to select the active channel and program its input range and
bipolar/unipolar operation. The I/O control register is a read/
write register used to configure the operation of the 2-pin I/O
port. The filter register is a read/write register used to program
the data update rate of the converter. The ADC Data register is
a read only register that contains the result of a data conversion
on the selected channel. The ADC offset registers are read/write
registers that contain the offset calibration data. There are five
offset registers, one for each of the fully differential input channels.
When configured for pseudo-differential input mode the chan-
nels share offset registers. The ADC gain registers are read/write
registers that contain the gain calibration data. There are five
ADC gain registers, one for each of the fully differential input
channels. When configured for pseudo differential input mode
the channels share gain registers. The ADC contains Test registers
for factory use only, the user is advised not to alter the oper-
ating conditions of these registers. The ID register is a read only
register and is used for silicon identification purposes. The follow-
ing sections contains more in-depth detail on all of these registers.
In the following descriptions, SET implies a Logic 1 state and
CLEARED implies a Logic 0 state unless otherwise stated.
DOUT
DIN
DOUT
DIN
DOUT
DIN
DOUT
DIN
DOUT
DIN
DOUT
WEN R/W
00
A1
A2
A3
A0
COMMUNICATIONS REGISTER
DOUT
DIN
REGISTER
SELECT
DECODER
ADC DATA REGISTER
STATUS REGISTER
MODE REGISTER
ADC CONTROL REGISTER
I/O CONTROL REGISTER
FILTER REGISTER
ID REGISTER
TEST REGISTER
ADC GAIN REGISTER
ADC OFFSET REGISTER
DIN
Figure 15. On-Chip Registers
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| AD7708BRU-REEL | 功能描述:IC ADC 16BIT R-R 8/10CH 28-TSSOP RoHS:否 類別: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:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個(gè)單端，單極 |
| AD7708BRU-REEL7 | 功能描述:IC ADC 16BIT R-R 8/10CH 28-TSSOP RoHS:否 類別: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:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個(gè)單端，單極 |
| AD7708BRUZ | 功能描述:IC ADC 16BIT R-R 8/10CH 28-TSSOP RoHS:是 類別: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 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個(gè)單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| AD7708BRUZ-REEL | 功能描述:IC ADC 16BIT R-R 8/10CH 28TSSOP RoHS:是 類別: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:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個(gè)單端，單極 |
| AD7708BRUZ-REEL7 | 功能描述:IC ADC 16BIT R-R 8/10CH 28TSSOP RoHS:是 類別: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:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個(gè)單端，單極 |
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