參數(shù)資料
型號: AD5320BRT-REEL
廠商: Analog Devices Inc
文件頁數(shù): 3/20頁
文件大?。?/td> 0K
描述: IC DAC 12BIT R-R W/BUFF SOT-23-6
產(chǎn)品培訓模塊: Data Converter Fundamentals
DAC Architectures
標準包裝: 10,000
設(shè)置時間: 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: 帶卷 (TR)
輸出數(shù)目和類型: 1 電壓,雙極
采樣率(每秒): 125k
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
power supply (VDD) acts as the reference. Figure 23 shows a
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
can be seen in Figure 11 and Figure 12. The slew rate is 1 V/μs
with a half-scale settling time of 8 μs with the output unloaded.
相關(guān)PDF資料
PDF描述
VI-B64-IU-B1 CONVERTER MOD DC/DC 48V 200W
LTC1664IGN#TRPBF IC D/A CONV 10BIT QUAD 16-SSOP
LTC1664IGN#TR IC DAC 10BIT QUAD MCRPWR 16SSOP
VI-2WH-MW-F1 CONVERTER MOD DC/DC 52V 100W
VI-B60-IU-B1 CONVERTER MOD DC/DC 5V 200W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD5320BRT-REEL7 功能描述:IC DAC 12BIT R-R W/BUFF SOT23-6 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 標準包裝:91 系列:- 設(shè)置時間: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):*
AD5320BRTZ 制造商:Analog Devices 功能描述:AD5320BRTZ
AD5320BRTZ-500RL7 功能描述:IC DAC 12BIT R-R W/BUFF SOT23-6 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 標準包裝:91 系列:- 設(shè)置時間: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):*
AD5320BRTZ-500RL7 制造商:Analog Devices 功能描述:12BIT DAC 140UA 2.7~5.5V SOT23-6 制造商:Analog Devices 功能描述:12BIT DAC, 140UA, 2.7~5.5V, SOT23-6
AD5320BRTZ-500RL71 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