- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10362 > AD7904WYRUZ-REEL7 (Analog Devices Inc)IC ADC 8BIT 4CH W/SEQ 16TSSOP PDF資料下載
參數(shù)資料
| 型號： | AD7904WYRUZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 7/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 8BIT 4CH W/SEQ 16TSSOP |
| 標準包裝： | 1 |
| 位數(shù)： | 8 |
| 采樣率（每秒）： | 1M |
| 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）： | 13.5mW |
| 電壓電源： | 單電源 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 16-TSSOP |
| 包裝： | 標準包裝 |
| 輸入數(shù)目和類型： | 4 個單端，單極 |
| 其它名稱： | AD7904WYRUZ-REEL7DKR |
第1頁第2頁第3頁第4頁第5頁第6頁當前第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頁第29頁第30頁第31頁第32頁
Data Sheet
AD7904/AD7914/AD7924
Rev. C | Page 15 of 32
CONTROL REGISTER
The control register of the AD7904/AD7914/AD7924 is a
12-bit, write-only register. Data is loaded from the DIN pin of
the AD7904/AD7914/AD7924 on the falling edge of SCLK. The
data is transferred on the DIN line at the same time that the
conversion result is read from the part. The data transferred on
the DIN line corresponds to the AD7904/AD7914/AD7924
configuration for the next conversion. This requires 16 serial
clocks for every data transfer. Only the information provided
on the first 12 falling clock edges (after the CS falling edge) is
loaded to the control register. MSB denotes the first bit in the
data stream. The bit functions are outlined in Table 8.
Table 7. Channel Selection
ADD1
ADD0
Analog Input Channel
0
VIN0
0
1
VIN1
1
0
VIN2
1
VIN3
Table 8. Control Register Bit Functions
MSB
LSB
11
10
9
8
7
6
5
4
3
2
1
0
WRITE
SEQ1
DONTC
ADD1
ADD0
PM1
PM0
SEQ0
DONTC
RANGE
CODING
Bit
Mnemonic
Description
11
WRITE
The value written to this bit determines whether the following 11 bits will be loaded to the control register. If this bit
is set to 1, the following 11 bits will be written to the control register; if this bit is set to 0, the remaining 11 bits are not
loaded to the control register, which remains unchanged.
10
SEQ1
The SEQ1 bit is used in conjunction with the SEQ0 bit to control the use of the sequencer function (see Table 10).
[9:8]
DONTC
Don’t care bits.
[7:6]
ADD1,
ADD0
The two address bits are loaded at the end of the present conversion sequence and select which analog input
channel is to be converted in the next serial transfer, or they may select the final channel in a consecutive sequence
as described in Table 10. The selected input channel is decoded as shown in Table 7. The address bits corresponding
to the conversion result are also output on DOUT prior to the 12 bits of data (see the Serial Interface section). The next
channel to be converted on will be selected by the mux on the 14th SCLK falling edge.
[5:4]
PM1, PM0
The two power management bits decode the mode of operation of the AD7904/AD7914/AD7924 as described in
3
SEQ0
The SEQ0 bit is used in conjunction with the SEQ1 bit to control the use of the sequencer function (see Table 10).
2
DONTC
Don’t care bit.
1
RANGE
This bit selects the analog input range to be used on the AD7904/AD7914/AD7924. If it is set to 0, the analog input
range will extend from 0 V to 2 × REFIN. If it is set to 1, the analog input range will extend from 0 V to REFIN (for the next
conversion). For the 0 V to 2 × REFIN input range, VDD = 4.75 V to 5.25 V.
0
CODING
This bit selects the type of output coding that the AD7904/AD7914/AD7924 will use for the conversion result. If this
bit is set to 0, the output coding for the part will be twos complement. If this bit is set to 1, the output coding from
the part will be straight binary (for the next conversion).
Table 9. Power Mode Selection
PM1
PM0
Mode
Description
1
Normal
operation
In normal operation mode, the AD7904/AD7914/AD7924 remain in full power mode regardless of
the status of any of the logic inputs. This mode allows the fastest possible throughput rate from the
AD7904/AD7914/AD7924.
1
0
Full
shutdown
In full shutdown mode, the AD7904/AD7914/AD7924 are in full shutdown with all circuitry on the
device powering down. The AD7904/AD7914/AD7924 retain the information in the control register
while in full shutdown. The part remains in full shutdown until these bits are changed.
0
1
Auto
shutdown
In auto shutdown mode, the AD7904/AD7914/AD7924 automatically enter full shutdown mode at the
end of each conversion when the control register is updated. Wake-up time from full shutdown is 1 μs;
the user should ensure that 1 μs has elapsed before attempting to perform a valid conversion on the
part in this mode.
0
Invalid
Invalid selection. This configuration is not allowed.
相關PDF資料 |
PDF描述 |
|---|---|
| D2-45157-QR-T | IC DGTL AMP PWM CTRLR 68QFN |
| D38999/26WB5BN | CONN HSG PLUG 5POS STRGHT SCKT |
| D2-45057-QR-T | IC DGTL AMP PWM CTRLR 68QFN |
| D38999/26WD5BN | CONN HSG PLUG 5POS STRGHT SCKT |
| D38999/24WD97SNLC | CONN HSG RCPT 12POS JAM NUT SCKT |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7908 | 制造商:AD 制造商全稱:Analog Devices 功能描述:8-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 20-Lead TSSOP |
| AD7908BRU | 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 8-bit Serial 20-Pin TSSOP 制造商:Rochester Electronics LLC 功能描述:8-BIT 8, CH 1 MSPS ADC - Bulk 制造商:Analog Devices 功能描述:IC 8BIT ADC SMD 7908 TSSOP20 |
| AD7908BRU-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 8-bit Serial 20-Pin TSSOP T/R 制造商:Analog Devices 功能描述:ADC SGL SAR 1MSPS 8BIT SERL 20TSSOP - Tape and Reel |
| AD7908BRU-REEL7 | 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 8-bit Serial 20-Pin TSSOP T/R 制造商:Analog Devices 功能描述:ADC SGL SAR 1MSPS 8BIT SERL 20TSSOP - Tape and Reel |
| AD7908BRUZ | 功能描述:IC ADC 8BIT 8CH 1MSPS 20-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(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(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
發(fā)布緊急采購，3分鐘左右您將得到回復。