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AD5065BRUZ-1 PDF预览

AD5065BRUZ-1

更新时间： 2024-02-16 19:31:33
品牌 Logo 应用领域
亚德诺 - ADI 转换器数模转换器光电二极管
页数 文件大小 规格书
33页 755K
描述
Fully Accurate 12-/14-/16-Bit VOUT DAC SPI Interface 2.7 V to 5.5 V in a TSSOP

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中文翻译

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AD5065BRUZ-1 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：TSSOP, TSSOP14,.25针数：14
Reach Compliance Code：compliant风险等级：5.75
Is Samacsys：N最大模拟输出电压：5 V
最小模拟输出电压：转换器类型：D/A CONVERTER
输入位码：BINARY输入格式：SERIAL
JESD-30 代码：R-PDSO-G14JESD-609代码：e3
长度：5 mm最大线性误差 (EL)：0.0023%
位数：16功能数量：2
端子数量：14最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP14,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260电源：3/5 V
认证状态：Not Qualified座面最大高度：1.2 mm
标称安定时间 (tstl)：14 µs子类别：Other Converters
最大压摆率：4 mA标称供电电压：5 V
表面贴装：YES温度等级：AUTOMOTIVE
端子面层：MATTE TIN端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

AD5065BRUZ-1 数据手册

 浏览型号AD5065BRUZ-1的Datasheet PDF文件第27页浏览型号AD5065BRUZ-1的Datasheet PDF文件第28页浏览型号AD5065BRUZ-1的Datasheet PDF文件第29页浏览型号AD5065BRUZ-1的Datasheet PDF文件第30页浏览型号AD5065BRUZ-1的Datasheet PDF文件第32页浏览型号AD5065BRUZ-1的Datasheet PDF文件第33页 
Preliminary Technical Data  
APPLICATIONS  
AD5025/45/65  
This is an output voltage range of 5 V, with 0x0000 corre-  
sponding to a −5 V output, and 0xFFFF corresponding to a  
+5 V output.  
USING A REFERENCE AS A POWER SUPPLY FOR  
THE AD5025/45/65  
Because the supply current required by the AD5025/45/65 is  
extremely low, an alternative option is to use a voltage reference  
to supply the required voltage to the parts (see Figure 52). This is  
especially useful if the power supply is quite noisy or if the  
system supply voltages are at some value other than 5 V or 3 V,  
for example, 15 V. The voltage reference outputs a steady supply  
voltage for the AD5025, AD5045 and AD5065. If the low  
dropout REF195 is used, it must supply 500 μA of current to the  
AD5025/ AD5045 / AD5065, with no load on the output of the  
DAC. When the DAC output is loaded, the REF195 also needs  
to supply the current to the load. The total current required  
(with a 5 kΩ load on the DAC output) is  
R2 = 10kΩ  
+5V  
+5V  
R1 = 10kΩ  
AD820/  
OP295  
±5V  
V
V
OUT  
DD  
10µF  
0.1µF  
AD5025/45/65  
–5V  
THREE-WIRE  
SERIAL  
INTERFACE  
500 μA + (5 V/5 kΩ) = 1.5 mA  
Figure 53. Bipolar Operation with the AD5025/45/65  
The load regulation of the REF195 is typically 2 ppm/mA,  
which results in a 3 ppm (15 μV) error for the 1.5 mA current  
drawn from it. This corresponds to a 0.196 LSB error.  
USING THE AD5025/45/65 WITH A  
GALVANICALLY ISOLATED INTERFACE  
In process control applications in industrial environments,  
it is often necessary to use a galvanically isolated interface to  
protect and isolate the controlling circuitry from any hazardous  
common-mode voltages that can occur in the area where  
the DAC is functioning. iCoupler® provides isolation in excess  
of 2.5 kV. The AD5025/45/65 uses a 3-wire serial logic interface,  
so the ADuM1300 three-channel digital isolator provides the  
required isolation (see Figure 54). The power supply to the part  
also needs to be isolated, which is done by using a transformer.  
On the DAC side of the transformer, a 5 V regulator provides  
the 5 V supply required for the AD5025/45/65.  
15V  
5V  
REF195  
V
DD  
SYNC  
SCLK  
DIN  
THREE-WIRE  
SERIAL  
INTERFACE  
AD5065/  
AD5045/  
AD5025  
V
= 0V TO 5V  
OUT  
Figure 52. REF195 as Power Supply to the AD5025/45/65  
5V  
REGULATOR  
BIPOLAR OPERATION USING THE AD5025/45/65  
10µF  
0.1µF  
POWER  
The AD5025/45/65 has been designed for single-supply  
operation, but a bipolar output range is also possible using the  
circuit in Figure 53. The circuit gives an output voltage range of  
5 V. Rail-to-rail operation at the amplifier output is achievable  
using an AD820 or an OP295 as the output amplifier.  
V
DD  
SCLK  
V
V
V
V
OA  
SCLK  
IA  
ADuM1300  
AD5025/45/65  
The output voltage for any input code can be calculated as  
follows:  
V
SDI  
OUT  
SYNC  
V
IB  
OB  
OC  
⎡
⎤
⎥
⎦
D
65,536  
R1+ R2  
R1  
R2  
R1  
⎛
⎜
⎞
⎟
⎛
⎜
⎝
⎞
⎟
⎠
⎛
⎜
⎝
⎞
⎟
⎠
V = V  
×
×
− V  
×
⎢
O
DD  
DD  
⎝
⎠
V
⎣
DATA  
DIN  
IC  
GND  
where D represents the input code in decimal (0 to 65,535).  
With VDD = 5 V, R1 = R2 = 10 kΩ,  
Figure 54. AD5025/45/65 with a Galvanically Isolated Interface  
10 × D  
65,536  
⎛
⎜
⎞
⎟
V =  
− 5 V  
O
⎝
⎠
Rev. PrB | Page 31 of 33  
1...282930313233

中文翻译

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