- 您現(xiàn)在的位置：買賣IC網 > PDF目錄375238 > AD7738BRU (ANALOG DEVICES INC) 8-Channel, High Throughput, PDF資料下載
參數(shù)資料
| 型號： | AD7738BRU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 8-Channel, High Throughput, |
| 中文描述： | 8-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28 |
| 封裝： | MO-153AE, TSSOP-28 |
| 文件頁數(shù)： | 18/28頁 |
| 文件大?。?/td> | 407K |
| 代理商： | AD7738BRU |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁當前第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁
REV. 0
–18–
AD7738
Mode Register
8 Bits Read/Write Register, Address 38h–3Fh, Default Value 00h
The Mode register configures the part and determines the part’s operating mode. Writing to the Mode register will clear the ADC
Status register, set the
RDY
pin to logic high level, exit all current operations, and start the mode specified by the Mode bits.
The AD7738 contains only one Mode register. The three LSBs of the address used for writing to the Mode register specify the channel
selected for operation determined by the MD2 to MD0 bits. The address 38h only must be used for reading from the Mode register.
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Mnemonic
MD2
MD1
MD0
CLKDIS
DUMP
CONT RD
24/16 BIT
CLAMP
Default
0
0
0
0
0
0
0
0
Bit
Mnemonic
Description
7–5
MD2–MD0
Mode Bits. These three bits determine the AD7738 operation mode. Writing a new value to the Mode
bits will exit the part from the mode in which it has been operating and place it in the new requested
mode immediately. The function of the Mode bits is described in more detail below.
Master Clock Output Disable. When this bit is set to 1 the master clock is disabled from appearing
at the MCLKOUT pin and the MCLKOUT pin is in a high impedance state. This allows turning off the
MCLKOUT as a power saving feature. When using an external clock on MCLKIN, the AD7738
continues to have internal clocks and will convert normally regardless of CLKDIS bit state. When using
a crystal oscillator or ceramic resonator across the MCLKIN and MCLKOUT pins, the AD7738 clock is
stopped and no conversions can take place when the CLKDIS bit is active. The AD7738 digital interface
can still be accessed using the SCLK pin.
DUMP Mode. When this bit is reset to 0, the Channel Status register and Channel Data register will
be addressed and read separately. When the DUMP bit is set to 1, the Channel Status register will be followed
immediately by a read of the Channel Data register regardless of whether the Status or Data register
has been addressed through the Communication register. The Continuous Read mode will always be a
“Dump Mode” reading of the Channel Status and Data register regardless of the Dump Bit value. See the
Digital Interface Description section for more details.
When this bit is set to 1, the AD7738 will operate in the Continuous Read mode. See the Digital
Interface Description section for more details.
The Channel Data Register Data Width Selection Bit. When set to 1, the Channel Data registers will be
24 bits wide. When set to 0, then the Channel Data registers will be 16 bits wide.
This bit determines the Channel Data register’s value when the analog input voltage is outside the nominal
input voltage range. When the CLAMP bit is set to 1, the Channel Data register will be digitally clamped
either to all zeros or all ones when the analog input voltage goes outside the nominal input voltage range.
When the CLAMP bit is reset to 0, the Data registers reflect the analog input voltage even outside the
nominal voltage range. See the Analog Inputs Extended Voltage Range section.
4
CLKDIS
3
DUMP
2
CONT RD
1
24/16 BIT
0
CLAMP
MD2
MD1
MD0
Mode
Address Used for Mode Register Write Specify
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Idle Mode
Continuous Conversion Mode
Single Conversion Mode
Power Down (Standby) Mode
ADC Zero-Scale Self Calibration
For Future Use
Channel Zero-Scale System Calibration
Channel Full-Scale System Calibration
The First Channel to Start Converting
Channel to Convert
Channel Conversion Time Used for the ADC Self-Calibration
Channel to Calibrate
Channel to Calibrate
相關PDF資料 |
PDF描述 |
|---|---|
| AD7741 | Low Cost, Single & Multi-Channel,Voltage-to-Frequency Converters(低成本,單通道,電壓-頻率轉換器) |
| AD7742 | Low Cost, Single & Multi-Channel,Voltage-to-Frequency Converters(低成本,多通道,電壓-頻率轉換器) |
| AD7746ARUZ-REEL | 24-Bit Capacitance-to-Digital Converter with Temperature Sensor |
| AD7745 | 24-Bit Capacitance-to-Digital Converter with Temperature Sensor |
| AD7745ARUZ | 24-Bit Capacitance-to-Digital Converter with Temperature Sensor |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD7738BRU-REEL | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 3.05Msps 24-bit Serial 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 15.437KSPS 24BIT SERL 28TSSOP - Tape and Reel |
| AD7738BRU-REEL7 | 功能描述:IC ADC 24BIT 8CH SIG-DEL 28TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7738BRUZ | 功能描述:IC ADC 24BIT 8-CH 28-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝: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 供應商設備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個單端，單極 產品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| AD7738BRUZ | 制造商:Analog Devices 功能描述:IC 24BIT ADC SMD 7738 TSSOP28 |
| AD7738BRUZ-REEL | 功能描述:IC ADC 24BIT 8CH SIG-DEL 28TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
發(fā)布緊急采購，3分鐘左右您將得到回復。