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參數(shù)資料
| 型號(hào)： | AD7303BRMZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 16/16頁(yè) |
| 文件大小： | 0K |
| 描述： | IC DAC 8BIT DUAL R-R 8-MSOP |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 設(shè)置時(shí)間： | 1.2µs |
| 位數(shù)： | 8 |
| 數(shù)據(jù)接口： | 串行 |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 6.93mW |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-MSOP |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 2 電壓，單極；2 電壓，雙極 |
| 采樣率（每秒）： | 833k |
| 產(chǎn)品目錄頁(yè)面： | 784 (CN2011-ZH PDF) |
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AD7303
–9–
REV. 0
grammed to transfer data in 16-bit words. After clocking all six-
teen bits to the shift register, the rising edge of SYNC executes
the programmed function. The DACs are double buffered
which allows their outputs to be simultaneously updated.
INPUT SHIFT REGISTER DESCRIPTION
The input shift register is 16 bits wide. The first eight bits con-
sist of control bits and the last eight bits are data bits. Figure 23
shows a block diagram of the logic interface on the AD7303
DAC. The seven bits in the control word are taken from the in-
put shift register to a latch sequencer that decodes this data and
provides output signals that control the data transfers to the in-
put and data registers of the selected DAC, as well as output
updating and various power-down features associated with the
control section. A description of all bits contained in the input
shift register is given below.
SERIAL INTERFACE
The AD7303 contains a versatile 3-wire serial interface that is
compatible with SPI, QSPI and Microwire interface stan-
dards as well as a host of digital signal processors. An active
low SYNC enables the shift register to receive data from the
serial data input DIN. Data is clocked into the shift register on
the rising edge of the serial clock. The serial clock frequency
can be as high as 30 MHz. This shift register is 16 bits wide as
shown in Figures 23 and 24. The first eight bits are control bits
and the second eight bits are data bits for the DACs. Each
transfer must consist of a 16-bit transfer. Data is sent MSB first
and can be transmitted in one 16-bit write or two 8-bit writes.
SPI and Microwire interfaces output data in 8-bit bytes and
thus require two 8-bit transfers. In this case the SYNC input to
the DAC should remain low until all sixteen bits have been
transferred to the shift register. QSPI interfaces can be pro-
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
INT/EXT
CR0
CR1
A/B
PDA
PDB
LDAC
X
8
LATCH
SEQUENCER
7
MSB
LSB
DAC A POWER-DOWN
DAC B POWER-DOWN
BANDGAP POWER-DOWN
LATCH & CLK
DRIVERS
16
REF
SELECTOR
INT
REFERENCE
CURRENT
SWITCH
CLOCK BUS
REF
RESISTOR
SWITCH
DAC A BIAS
DAC B BIAS
16-BIT
SHIFT
REGISTER
DIN
SYNC
DAC
REGISTER
30
DAC A
VOUT A
30
8 TO 32
DECODER
INPUT
REGISTER
8
SYNC
SCLK
BANDGAP
BIAS GEN
8
DAC
REGISTER
30
DAC B
VOUT B
30
8 TO 32
DECODER
INPUT
REGISTER
8
Figure 23. Logic Interface on the AD7303
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| AD7303BRMZ-REEL | 功能描述:IC DAC 8BIT DUAL R-R 8-MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產(chǎn)品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標(biāo)準(zhǔn)包裝:91 系列:- 設(shè)置時(shí)間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:8 電壓電源:單電源 功率耗散（最大）:2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-DFN-EP（4x3） 包裝:管件 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:* |
| AD7303BRMZ-REEL7 | 功能描述:IC DAC 8BIT DUAL R-R 8-MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產(chǎn)品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標(biāo)準(zhǔn)包裝:91 系列:- 設(shè)置時(shí)間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:8 電壓電源:單電源 功率耗散（最大）:2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-DFN-EP（4x3） 包裝:管件 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:* |
| AD7303BR-REEL | 制造商:Analog Devices 功能描述:DAC 2-CH Current Steering 8-bit 8-Pin SOIC N T/R |
| AD7303BR-REEL7 | 功能描述:IC DAC 8BIT DUAL R-R 8-SOIC T/R RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產(chǎn)品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標(biāo)準(zhǔn)包裝:91 系列:- 設(shè)置時(shí)間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:8 電壓電源:單電源 功率耗散（最大）:2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-DFN-EP（4x3） 包裝:管件 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:* |
| AD7303BRZ | 功能描述:IC DAC 8BIT DUAL R-R 8-SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 設(shè)置時(shí)間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類型:2 電壓，單極 采樣率（每秒）:* 產(chǎn)品目錄頁(yè)面:1398 (CN2011-ZH PDF) |
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