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AD5302BRM-REEL7

更新时间： 2024-02-06 17:21:44
品牌 Logo 应用领域
罗彻斯特 - ROCHESTER 输入元件光电二极管转换器
页数 文件大小 规格书
25页 1926K
描述
SERIAL INPUT LOADING, 6 us SETTLING TIME, 8-BIT DAC, PDSO10, MO-187BA, MSOP-10

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AD5302BRM-REEL7 技术参数

Source Url Status Check Date：2013-05-01 14:56:11.758是否无铅： 含铅
是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：TSSOP包装说明：MO-187BA, MSOP-10
针数：10Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：7.54最大模拟输出电压：5.499 V
最小模拟输出电压：0.001 V转换器类型：D/A CONVERTER
输入位码：BINARY输入格式：SERIAL
JESD-30 代码：S-PDSO-G10JESD-609代码：e0
长度：3 mm最大线性误差 (EL)：0.1953%
湿度敏感等级：1位数：8
功能数量：1端子数量：10
最高工作温度：105 °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：TSOP10,.5封装形状：SQUARE
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：240
电源：2.5/5.5 V认证状态：Not Qualified
座面最大高度：1.1 mm标称安定时间 (tstl)：6 µs
子类别：Other Converters最大压摆率：0.4 mA
标称供电电压：3 V表面贴装：YES
技术：CMOS温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn85Pb15)端子形式：GULL WING
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：3 mm
Base Number Matches：1

AD5302BRM-REEL7 数据手册

 浏览型号AD5302BRM-REEL7的Datasheet PDF文件第16页浏览型号AD5302BRM-REEL7的Datasheet PDF文件第17页浏览型号AD5302BRM-REEL7的Datasheet PDF文件第18页浏览型号AD5302BRM-REEL7的Datasheet PDF文件第20页浏览型号AD5302BRM-REEL7的Datasheet PDF文件第21页浏览型号AD5302BRM-REEL7的Datasheet PDF文件第22页 
AD5302/AD5312/AD5322  
APPLICATIONS INFORMATION  
TYPICAꢀ APPꢀICATION CIRCUIT  
6V to 16V  
The AD5302/AD5312/AD5322 can be used with a wide range  
of reference voltages, especially if the reference inputs are  
configured to be unbuffered, in which case the devices offer full,  
one-quadrant multiplying capability over a reference range of  
0 V to VDD. More typically, the AD5302/AD5312/AD5322 can  
be used with a fixed, precision reference voltage. Figure 38  
shows a typical setup for the AD5302/AD5312/AD5322  
when using an external reference. If the reference inputs are  
unbuffered, the reference input range is from 0 V to VDD, but if  
the on-chip reference buffers are used, the reference range is  
reduced. Suitable references for 5 V operation are the AD780  
and REF192 (2.5 V references). For 2.5 V operation, a suitable  
external reference would be the REF191, a 2.048 V reference.  
V
0.1µF  
1µF  
10µF  
IN  
REF195  
V
OUT  
V
DD  
V
A
OUT  
GND  
V
V
A
B
REF  
REF  
AD5302/AD5312/  
AD5322  
SCLK  
DIN  
V
B
OUT  
SYNC  
GND  
SERIAL  
INTERFACE  
Figure 39. Using a REF195 as Power and Reference to the  
AD5302/AD5312/AD5322  
V
= 2.5V to 5.5V  
DD  
BIPOꢀAR OPERATION USING THE  
AD5302/AD5312/AD5322  
V
DD  
EXT  
REF  
V
The AD5302/AD5312/AD5322 are designed for single-supply  
operation, but bipolar operation is also achievable using the  
circuit shown in Figure 40. This circuit is configured to achieve  
an output voltage range of –5 V < VOUT < +5 V. Rail-to-rail  
operation at the amplifier output is achievable using an AD820  
or OP295 as the output amplifier.  
OUT  
V
V
A
B
V
A
REF  
OUT  
1µF  
REF  
AD780/REF192  
WITH V = 5V  
OR REF191 WITH  
AD5302/AD5312/  
DD  
AD5322  
V
= 2.5V  
DD  
SCLK  
DIN  
V
B
OUT  
SYNC  
GND  
V
= 5V  
6V to 16V  
DD  
R2  
10kΩ  
SERIAL  
INTERFACE  
0.1µF  
10µF  
Figure 38. AD5302/AD5312/AD5322 Using External Reference  
+5V  
–5V  
R1  
10kΩ  
V
IN  
If an output range of 0 V to VDD is required when the reference  
inputs are configured as unbuffered (for example, 0 V to 5 V),  
the simplest solution is to connect the reference inputs to VDD  
As this supply cannot be very accurate and can be noisy, the  
AD5302/AD5312/AD5322 can be powered from the reference  
voltage, for example, a 5 V reference such as the REF195, as  
shown in Figure 39. The REF195 outputs a steady supply  
voltage for the AD5302/AD5312/AD5322. The current required  
from the REF195 is 300 μA supply current and approximately  
30 μA into each reference input. This is with no load on the  
DAC outputs. When the DAC outputs are loaded, the REF195  
also needs to supply the current to the loads. The total current  
required (with a 10 kꢁ load on each output) is  
±5V  
REF195  
V
V
DD  
AD820/  
OP295  
OUT  
V
A/B  
REF  
.
1µF  
GND  
AD5302/AD5312/  
AD5322  
SCLK  
DIN  
V
A/B  
OUT  
SYNC  
GND  
SERIAL  
INTERFACE  
Figure 40. Bipolar Operation Using the AD5302/AD5312/AD5322  
The output voltage for any input code can be calculated as  
follows:  
REF ×D /2N  
R1  
)
×(R1+ R2)  
⎡
⎢
⎣
⎤
⎥
⎦
(
V
⎛
⎜
⎜
⎝
⎞
⎟
⎟
⎠
5 V  
VOUT  
=
−V  
× R2/ R1  
( )  
REF  
360 μA+2  
=1.36 mA  
10 kΩ  
where:  
The load regulation of the REF195 is typically 2 ppm/mA,  
which results in an error of 2.7 ppm (13.5 μV) for the 1.36 mA  
current drawn from it. This corresponds to a 0.0007 LSB error  
at eight bits and a 0.011 LSB error at 12 bits.  
D is the decimal equivalent of the code loaded to the DAC.  
N is the DAC resolution.  
V
REF is the reference voltage input.  
If VREF = 5 V, R1 = R2 = 1 kꢁ, and VDD = 5 V:  
VOUT − 5V  
10 × D /2N  
=
(
)
Rev. D | Page 18 of 24  
 
 
 
 
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