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參數(shù)資料
| 型號(hào)： | AD5320BRTZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 3/20頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 12BIT R-R W/BUFF SOT23-6 |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 設(shè)置時(shí)間： | 8µs |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-6 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-6 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 輸出數(shù)目和類型： | 1 電壓，雙極 |
| 采樣率（每秒）： | 125k |
| 產(chǎn)品目錄頁(yè)面： | 782 (CN2011-ZH PDF) |
| 其它名稱： | AD5320BRTZ-REEL7DKR-ND AD5320BRTZREEL7DKR |
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AD5320
Rev. C | Page 11 of 20
THEORY OF OPERATION
D/A SECTION
The AD5320 DAC is fabricated on a CMOS process. The
architecture consists of a string DAC followed by an output
buffer amplifier. Because there is no reference input pin, the
block diagram of the DAC architecture.
VDD
VOUT
GND
RESISTOR
STRING
REF (+)
REF (–)
OUTPUT
AMPLIFIER
DAC REGISTER
00
93
4-
0
23
Figure 23. DAC Architecture
Since the input coding to the DAC is straight binary, the ideal
output voltage is given by:
×
=
4096
D
V
DD
OUT
where D = decimal equivalent of the binary code that is loaded
to the DAC register; it can range from 0 to 4095.
RESISTOR STRING
The resistor string section is shown in Figure 24. It is simply a
string of resistors, each of value R. The code loaded to the DAC
register determines at which node on the string the voltage is
tapped off to be fed into the output amplifier. The voltage is
tapped off by closing one of the switches connecting the string
to the amplifier. Because it is a string of resistors, it is
guaranteed monotonic.
R
TO OUTPUT
AMPLIFIER
00
93
4-
0
24
Figure 24. Resistor String
OUTPUT AMPLIFIER
The output buffer amplifier is capable of generating rail-to-rail
voltages on its output that gives an output range of 0 V to VDD. It
is capable of driving a load of 2 kΩ in parallel with 1000 pF to
GND. The source and sink capabilities of the output amplifier
with a half-scale settling time of 8 μs with the output unloaded.
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| AD5320BRTZ-REEL71 | 制造商:AD 制造商全稱:Analog Devices 功能描述:2.7 V to 5.5 V, 140 ??A, Rail-to-Rail Output 12-Bit DAC in an SOT-23 |
| AD5321 | 制造商:AD 制造商全稱:Analog Devices 功能描述:2.5 V to 5.5 V, 230uA, Parallel Interface Dual Voltage-Output 8-/10-/12-Bit DACs |
| AD5321BRM | 功能描述:IC DAC 12BIT 2.5V 2-WIRE 8-MSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時(shí)間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
| AD5321BRM-REEL | 制造商:Analog Devices 功能描述:DAC 1-CH Resistor-String 12-bit 8-Pin MSOP T/R 制造商:Analog Devices 功能描述:DAC 1CH RES-STRING 12-BIT 8MSOP - Tape and Reel |
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