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參數(shù)資料
| 型號： | AD5553 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:D38999 Series III; No. of Contacts:4; Connector Shell Size:13; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight RoHS Compliant: No |
| 中文描述： | 電流輸出/串行輸入，16-/14-Bit援 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 259K |
| 代理商： | AD5553 |
REV. A
–8–
AD5543/AD5553
APPLICATIONS
Stability
V
DD
V
REF
V
REF
V
DD
U2
U1
AD5543/AD5553
V
O
GND
I
OUT
R
FB
AD8628
C1
Figure 7. Optional Compensation Capacitor for Gain
Peaking Prevention
In the I-to-V configuration, the I
OUT
of the DAC and the inverting
node of the op amp must be connected as close as possible, and
proper PCB layout technique must be employed. Since every code
change corresponds to a step function, gain peaking may occur
if the op amp has limited GBP and there is excessive parasitic
capacitance at the inverting node.
An optional compensation capacitor C1 can be added for stability
as shown in Figure 7. C1 should be found empirically but 20 pF
is generally adequate for the compensation.
Positive Voltage Output
To achieve the positive voltage output, an applied negative
reference to the input of the DAC is preferred over the output
inversion through an inverting amplifier because of the resistor
’
s
tolerance errors. To generate a negative reference, the reference
can be level-shifted by an op amp such that the V
OUT
and GND
pins of the reference become the virtual ground and
–
2.5 V
respectively, (see Figure 8).
V
REF
V
DD
U2
U1
AD5543/AD5553
V
O
GND
I
OUT
R
FB
1/2AD8628
1/2AD8620
V–
V
OUT
V
IN
GND
V+
+5V
–5V
ADR03
+5V
–2.5V
U3
U4
C1
0 < V
O
< +2.5
Figure 8. Positive Voltage Output Configuration
Bipolar Output
The AD5543/AD5553 is inherently a 2-quadrant multiplying
D/A converter. That is, it can easily be set up for unipolar output
operation. The full-scale output polarity is the inverse of the
reference input voltage.
In some applications, it may be necessary to generate the full
4-quadrant multiplying capability or a bipolar output swing. This
is easily accomplished by using an additional external amplifier
U4 configured as a summing amplifier (see Figure 9). In this
circuit, the second amplifier U4 provides a gain of 2 that increases
the output span magnitude to 5 V. Biasing the external amplifier
with a 2.5 V offset from the reference voltage results in a full
4-quadrant multiplying circuit. The transfer equation of this circuit
shows that both negative and positive output voltages are created
as the input data (D) is incremented from code zero (V
OUT
=
–
2.5 V) to midscale (V
OUT
= 0 V) to full-scale (V
OUT
= +2.5 V).
V
D
V
OUT
=
×
(
/
,
32 768– )
V
D
V
OUT
=
×
(
/
,
– )
16 384
1
For AD5543, the resistance tolerance becomes the dominant
error of which users should be aware.
AD
REF
(
)
5543
(3)
AD
REF
(
)
5553
(4)
V
REF
V
DD
U2
U1
AD5553 ONLY
V
O
GND
I
OUT
R
FB
1/2AD8620
V
OUT
V
IN
GND
ADR03
U3
1/2AD8620
V–
V+
+5V
–5V
+5V
U4
C1
–2.5 < V
O
< +2.5
C2
5k
0.01%
R3
R1
R2
10k
0.01%
10k
0.01%
+5V
Figure 9. Four-Quadrant Multiplying Application Circuit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD5553CRM | Circular Connector; No. of Contacts:4; Series:D38999; Body Material:Metal; Connecting Termination:Crimp; Connector Shell Size:13; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:13-4 |
| AD5546 | Current Output, Parallel Input, 16-/14-Bit Multiplying DACs with 4-Quadrant Resistors |
| AD5546BRU | Current Output, Parallel Input, 16-/14-Bit Multiplying DACs with 4-Quadrant Resistors |
| AD5546BRU-REEL7 | Current Output, Parallel Input, 16-/14-Bit Multiplying DACs with 4-Quadrant Resistors |
| AD5556CRU | Current Output, Parallel Input, 16-/14-Bit Multiplying DACs with 4-Quadrant Resistors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD5553CRM | 功能描述:IC DAC 14BIT SRLIN/CUR OUT 8MSOP RoHS:否 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: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）:* |
| AD5553CRM-REEL7 | 制造商:Analog Devices 功能描述:DAC 1-CH R-2R 14-bit 8-Pin MSOP T/R 制造商:Analog Devices 功能描述:DAC 1CH R-2R 14BIT 8MSOP - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:14-BIT I OUT DAC - Tape and Reel |
| AD5553CRMZ | 功能描述:IC DAC 14BIT SERIAL-IN 8-MSOP 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(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 設(shè)置時間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉(zhuǎn)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(yīng)商設(shè)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) |
| AD5553CRMZ-REEL7 | 功能描述:IC DAC 14BIT SERIAL IN 8MSOP 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(xùn)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）:* |
| AD5554 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad, Current-Output Serial-Input, 16-Bit/14-Bit DACs |
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