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參數(shù)資料
| 型號： | AD5744CSU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | Complete, Quad, 14/16-Bit, High Accuracy, Serial Input, Bipolar Voltage Output DAC |
| 中文描述： | SERIAL INPUT LOADING, 8 us SETTLING TIME, 14-BIT DAC, PQFP32 |
| 封裝： | MO-026-ABA, TQFP-32 |
| 文件頁數(shù)： | 13/27頁 |
| 文件大?。?/td> | 243K |
| 代理商： | AD5744CSU |
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Preliminary Technical Data
TERMINOLOGY
Rev. PrA 15-Nov-04| Page 13 of 27
Relative Accuracy
For the DAC, relative accuracy or Integral Nonlinearity (INL) is
a measure of the maximum deviation, in LSBs, from a straight
line passing through the endpoints of the DAC transfer
function. A typical INL vs. code plot can be seen in Figure .
Differential Nonlinearity
Differential Nonlinearity (DNL) is the difference between the
measured change and the ideal 1 LSB change between any two
adjacent codes. A specified differential nonlinearity of ±1 LSB
maximum ensures monotonicity. This DAC is guaranteed
monotonic by design. A typical DNL vs. code plot can be seen
in Figures .
Monotonicity
A DAC is monotonic, if the output either increases or remains
constant for increasing digital input code. The AD5744/64 is
monotonic over its full operating temperature range
Bipolar Zero Error
Bipolar zero error is the deviation of the analog output from the
ideal half-scale output of 0 V when the DAC register is loaded
with 0x8000 (Offset Binary coding) or 0x0000 (2sComplement
coding)
Full-Scale Error
Full-scale error is a measure of the output error when full-scale
code is loaded to the DAC register. Ideally the output voltage
should be full scale value – 1 LSB. Full-scale error is expressed
in percentage of full-scale range. A plot of full-scale error vs.
temperature can be seen in Figure .
Negative Full-Scale Error / Zero Scale Error
Negative full-scale error is the error in the DAC output voltage
when 0x0000 (Offset Binary coding) or 0x8000 (2sComplement
coding) is loaded to the DAC register. Ideally the output voltage
should be negative full scale value – 1 LSB.
Output Voltage Settling Time
Output voltage settling time is the amount of time it takes for
the output to settle to a specified level for a full-scale input
change.
Slew Rate
The slew rate of a device is a limatation in the rate of change of
the output voltage. The output slewing speed of a voltage-
output D/A converter is usually limited by the slew rate of the
amplifier used at its output. Slew rate is measured from 10% to
90% of the output signal and is given in V/μs.
Gain Error
This is a measure of the span error of the DAC. It is the
deviation in slope of the DAC transfer characteristic from the
ideal, expressed as a percentage of the full-scale range.
Total Unadjusted Error
Total Unadjusted Error (TUE) is a measure of the output error
taking all the various errors into account. A typical TUE vs.
code plot can be seen in Figure .
Zero-Code Error Drift
This is a measure of the change in zero-code error with a
change in temperature. It is expressed in μV/°C.
Gain Error Drift
This is a measure of the change in gain error with changes in
temperature. It is expressed in (ppm of full-scale range)/°C.
Digital-to-Analog Glitch Impulse
Digital-to-analog glitch impulse is the impulse injected into the
analog output when the input code in the DAC register changes
state. It is normally specified as the area of the glitch in nV secs
and is measured when the digital input code is changed by
1 LSB at the major carry transition (7FFF Hex to 8000 Hex). See
Figure .
Digital Feedthrough
Digital feedthrough is a measure of the impulse injected into
the analog output of the DAC from the digital inputs of the
DAC but is measured when the DAC output is not updated. It is
specified in nV secs and measured with a full-scale code change
on the data bus, i.e., from all 0s to all 1s and vice versa.
Power Supply Sensitivity
Power supply sensitivity indicates how the output of the DAC is
affected by changes in the power supply voltage.
DC Crosstalk
This is the dc change in the output level of one DAC in response
to a change in the output of another DAC. It is measured with a
full-scale output change on one DAC while monitoring another
DAC. It is expressed in μV.
DAC-to-DAC Crosstalk
This is the glitch impulse transferred to the output of one DAC
due to a digital code change and subsequent output change of
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| AD5744RCSUZ | 功能描述:IC DAC 4CH 14BIT SER 1LSB 32TQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 設置時間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉換器數(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） 供應商設備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類型:2 電壓，單極 采樣率（每秒）:* 產品目錄頁面:1398 (CN2011-ZH PDF) |
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