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參數(shù)資料
| 型號： | DAC8408FPCZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 5/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 8BIT QUAD MULTIPLY 28PLCC |
| 產(chǎn)品培訓模塊： | Data Converter Fundamentals DAC Architectures |
| 標準包裝： | 39 |
| 設(shè)置時間： | 190ns |
| 位數(shù)： | 8 |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-LCC（J 形引線） |
| 供應商設(shè)備封裝： | 28-PLCC（11.51x11.51） |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 4 電流，單極；4 電流，雙極 |
| 采樣率（每秒）： | 5.26M |
DAC8408
–13–
REV. A
Figure 9. A Digitally Programmable Universal Active Filter
Figure 10. Programmable Active Filter Band-Pass
Frequency Response
All components used are available off-the-shelf. Using low drift
thin-film resistors, the DAC8408 exhibits very stable perfor-
mance over temperature. The wide bandwidth of the OP-470
produces excellent high frequency and high Q response. In addi-
tion, the OP470’s low input offset voltage assures an unusually
low dc offset at the filter output.
A DIGITALLY PROGRAMMABLE ACTIVE FILTER
A powerful D/A converter application is a programmable active
filter design as shown in Figure 9. The design is based on the
state-variable filter topology which offers stable and repeatable
filter characteristics. DAC B and DAC D can be programmed in
tandem with a single digital byte load which sets the center fre-
quency of the filter. DAC A sets the Q of the filter. DAC C sets
the gain of the filter transfer function. The unique feature of this
design is that varying the gain of filter does not affect the Q of
the filter. Similarly, the reverse is also true. This makes the pro-
grammability of the filter extremely reliable and predictable.
Note that low-pass, high-pass, and bandpass outputs are avail-
able. This sophisticated function is achieved in only two IC
packages.
The network analyzer photo shown in Figure 10 superimposes
five actual bandpass responses ranging from the lowest fre-
quency of 75 Hz (1 LSB ON) to a full-scale frequency of 19.132
kHz (all bits ON), which is equivalent to a 256 to 1 dynamic
range. The frequency is determined by fC = 1/2πRC where R is
the ladder resistance (RIN) of the DAC8408, and C is 1000 pF.
Note that from device to device, the resistance RIN varies. Thus
some tuning may be necessary.
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| DAC8408FPZ | 功能描述:IC DAC 8BIT QUAD W/MEMORY 28DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標準包裝:1 系列:- 設(shè)置時間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設(shè)備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:* 其它名稱:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
| DAC8408FS | 功能描述:IC DAC 8BIT QUAD W/MEMORY 28SOIC 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:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設(shè)置時間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC（J 形引線） 供應商設(shè)備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
| DAC8408FS-REEL | 制造商:Analog Devices 功能描述:DAC 4-CH R-2R 8-bit 28-Pin SOIC W T/R 制造商:Analog Devices 功能描述:DAC8408 W/TAPE & REEL - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:DAC8408 W/TAPE & REEL - Tape and Reel |
| DAC8408FSZ | 功能描述:IC DAC 8BIT QUAD W/MEMORY 28SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標準包裝:1 系列:- 設(shè)置時間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設(shè)備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:* 其它名稱:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
| DAC8408FSZ | 制造商:Analog Devices 功能描述:IC 8-BIT DAC |
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