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參數(shù)資料
| 型號： | DAC8408FS |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 8BIT QUAD W/MEMORY 28SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標(biāo)準(zhǔn)包裝： | 27 |
| 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-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SOIC W |
| 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
–12–
REV. A
SINGLE SUPPLY, VOLTAGE OUTPUT OPERATION
The DAC8408 can be connected with a single +5 V supply to
produce DAC output voltages from 0 V to +1.5 V. In Figure 8,
the DAC8408 R-2R ladder is inverted from its normal connec-
tion. A +1.500 V reference is connected to the current output pin
4 (IOUT 1A), and the normal VREF input pin becomes the DAC
output. Instead of a normal current output, the R-2R ladder out-
puts a voltage. The OP-490, consisting of four precision low
power op amps that can operate its inputs and outputs to zero
volts, buffers the DAC to produce a low impedance output volt-
age from 0 V to +1.5 V full-scale. Table III shows the code table.
With the supply and reference voltages as shown, better than 1/2
LSB differential and integral nonlinearity can be expected. To
maintain this performance level, the +5 V supply must not drop
below 4.75 V. Similarly, the reference voltage must be no higher
than 1.5 V. This is because the CMOS switches require a mini-
mum level of bias in order to maintain the linearity performance.
Table III. Single Supply Binary Code Table (Refer to Figure 8)
DAC Data Input
MSB
LSB
Analog Output
1 1 1 1 1 1 1 1
VREF
255
256
, +1.4941 V
1 0 0 0 0 0 0 1
VREF
129
256
, +0.7559 V
1 0 0 0 0 0 0 0
VREF
128
256
, +0.7500 V
0 1 1 1 1 1 1 1
VREF
127
256
, +0.7441 V
0 0 0 0 0 0 0 1
VREF
1
256
, +0.0059 V
0 0 0 0 0 0 0 0
VREF
0
256
, 0.0000 V
Figure 8. Unipolar Supply, Voltage Output DAC Operation
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(biāo)準(zhǔn)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(yīng)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 |
| DAC8408FSZ-REEL | 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(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時間: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）:* |
| DAC8408FT | 制造商:Rochester Electronics LLC 功能描述:QUAD 8-BIT CMOS DAC WITH - Bulk |
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