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參數(shù)資料
| 型號： | AD5546CRUZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 7/20頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 16BIT PAR 28TSSOP |
| 設計資源： | Precision, Unipolar, Inverting Conversion Using AD5546/56 DAC (CN0022) Precision, Bipolar Configuration for the AD5546/56 DAC (CN0024) Precision, Unipolar, Noninverting Configuration for the AD5546/56 DAC (CN0023) Precision, AC Reference Signal Attenuator Using AD5546/56 Multiplying DAC (CN0025) |
| 標準包裝： | 1,000 |
| 設置時間： | 500ns |
| 位數(shù)： | 16 |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉換器數(shù)目： | 1 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 55µW |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 28-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸出數(shù)目和類型： | 1 電流，單極；1 電流，雙極 |
| 采樣率（每秒）： | 2M |
Data Sheet
AD5546/AD5556
Rev. D | Page 15 of 20
REFERENCE SELECTION
When selecting a reference for use with the AD55xx series
of current output DACs, pay attention to the output voltage
temperature coefficient specification of the reference. Choosing
a precision reference with a low output temperature coefficient
minimizes error sources. Table 11 lists some of the references
available from Analog Devices that are suitable for use with this
range of current output DACs.
AMPLIFIER SELECTION
The primary requirement for the current-steering mode is an
amplifier with low input bias currents and low input offset voltage.
Because of the code-dependent output resistance of the DAC,
the input offset voltage of an op amp is multiplied by the variable
gain of the circuit. A change in this noise gain between two
adjacent digital fractions produces a step change in the output
voltage due to the amplifier’s input offset voltage. This output
voltage change is superimposed on the desired change in output
between the two codes and gives rise to a differential linearity
error, which, if large enough, can cause the DAC to be
nonmonotonic.
The input bias current of an op amp also generates an offset at
the voltage output because of the bias current flowing in the
feedback resistor, RFB.
Common-mode rejection of the op amp is important in voltage-
switching circuits because it produces a code-dependent error
at the voltage output of the circuit.
Provided that the DAC switches are driven from true wideband
low impedance sources, they settle quickly. Consequently, the
slew rate and settling time of a voltage-switching DAC circuit is
determined largely by the output op amp. To obtain minimum
settling time in this configuration, minimize capacitance at the
VREF node (the voltage output node in this application) of the
DAC. This is done by using low input capacitance buffer
amplifiers and careful board design.
Analog Devices offers a wide range of amplifiers for both precision
dc and ac applications, as listed in Table 12 and Table 13.
Table 11. Suitable Analog Devices Precision References
Part No.
Output Voltage (V)
Initial Tolerance (%)
Maximum Temperature
Drift (ppm/°C)
ISS (mA)
Output Noise (V p-p)
Package(s)
10
0.05
3
1
20
SOIC-8
10
0.05
9
1
20
TSOT-5, SC70-5
5.0
0.06
3
1
10
SOIC-8
5.0
0.06
9
1
10
TSOT-5, SC70-5
2.5
0.1
3
1
6
SOIC-8
2.5
0.1
9
1
6
TSOT-5, SC70-5
3.0
0.1
3
1
10
SOIC-8
3.0
0.1
9
1
10
TSOT-5, SC70-5
2.048
0.05
3
0.5
1.75
SOIC-8, MSOP-8
2.50
0.04
3
0.5
1.75
SOIC-8, MSOP-8
3.00
0.04
3
0.5
2
SOIC-8, MSOP-8
5.00
0.04
3
0.5
3.4
SOIC-8, MSOP-8
2.500
0.04
3
0.8
3.5
SOIC-8, MSOP-8
5.000
0.04
3
0.8
8
SOIC-8, MSOP-8
2.5
0.16
9
0.12
5
TSOT-5
5.0
0.10
9
0.12
8
TSOT-5
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD5547 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual Current Output, Parallel Input, 16-/14-Bit Multiplying DACs with 4-Quadrant Resistors |
| AD5547BRU | 功能描述:IC DAC 16BIT DUAL 38-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 產(chǎn)品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設置時間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉換器數(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 |
| AD5547BRU-REEL7 | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| AD5547BRUZ | 功能描述:IC DAC 16BIT DUAL 38-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 產(chǎn)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(chǎn)品目錄頁面:1398 (CN2011-ZH PDF) |
| AD5547CRUZ | 功能描述:IC DAC 16BIT PAR DUAL 38TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 產(chǎn)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(chǎn)品目錄頁面:1398 (CN2011-ZH PDF) |
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