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AD5061YRJZ-1500RL7 PDF预览

AD5061YRJZ-1500RL7

更新时间: 2024-02-05 01:27:55
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
21页 1730K
描述
SERIAL INPUT LOADING, 4 us SETTLING TIME, 16-BIT DAC, PDSO8, LEAD FREE, MO-178BA, SOT-23, 8 PIN

AD5061YRJZ-1500RL7 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:LSSOP,针数:8
Reach Compliance Code:unknown风险等级:5.73
最大模拟输出电压:4.096 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:SERIALJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:2.9 mm
最大线性误差 (EL):0.0061%湿度敏感等级:1
位数:16功能数量:1
端子数量:8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:LSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:COMMERCIAL座面最大高度:1.45 mm
标称安定时间 (tstl):4 µs标称供电电压:3 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:40宽度:1.6 mm
Base Number Matches:1

AD5061YRJZ-1500RL7 数据手册

 浏览型号AD5061YRJZ-1500RL7的Datasheet PDF文件第13页浏览型号AD5061YRJZ-1500RL7的Datasheet PDF文件第14页浏览型号AD5061YRJZ-1500RL7的Datasheet PDF文件第15页浏览型号AD5061YRJZ-1500RL7的Datasheet PDF文件第17页浏览型号AD5061YRJZ-1500RL7的Datasheet PDF文件第18页浏览型号AD5061YRJZ-1500RL7的Datasheet PDF文件第19页 
AD5061  
THEORY OF OPERATION  
The AD5061 is a single 16-bit, serial input, voltage output DAC.  
It operates from supply voltages of 2.7 V to 5.5 V. Data is writ-  
ten to the AD5061 in a 2±-bit word format, via a 3-wire serial  
interface.  
LYNC  
line low. Data  
The write sequence begins by bringing the  
from the DIN line is clocked into the 2±-bit shift register on the  
falling edge of LCꢀK. The serial clock frequency can be as high  
as 30 MHz, making these parts compatible with high speed  
DLPs. On the 2±th falling clock edge, the last data bit is clocked  
in and the programmed function is executed (that is, a change  
in the DAC register contents and/or a change in the mode of  
operation).  
The AD5061 incorporates a power-on reset circuit that ensures  
the DAC output powers up to zero-scale or midscale. The  
device also has a software power-down mode pin that reduces  
the typical current consumption to less than 1 µA.  
LYNC  
At this stage, the  
line may be kept low or be brought  
DAC ARCHITECTURE  
high. In either case, it must be brought high for a minimum of  
12 ns before the next write sequence so that a falling edge of  
The DAC architecture of the AD5061 consists of two matched  
DAC sections. A simplified circuit diagram is shown in  
Figure 37. The four MLBs of the 16-bit data word are decoded  
to drive 15 switches, E1 to E15. Each of these switches connects  
one of 15 matched resistors to either DACGND or VREF buffer  
output. The remaining 12 bits of the data word drive switches  
L0 to L11 of a 12-bit voltage mode R-2R ladder network.  
LYNC  
LYNC  
can initiate the next write sequence. Because the  
buffer draws more current when VIH = 1.8 V than it does when  
VIH = 0.8 V, should be idled low between write sequences  
LYNC  
for an even lower power operation of the part. As previously  
indicated, however, it must be brought high again just before  
the next write sequence.  
V
OUT  
INPUT SHIFT REGISTER  
2R  
E2  
2R  
2R  
S0  
2R  
S1  
2R  
2R  
E1  
2R  
The input shift register is 2± bits wide; see Figure 38. PD1 and  
PD0 are control bits that control which mode of operation the  
part is in (normal mode or any one of three power-down  
modes). There is a more complete description of the various  
modes in the Power-Down Modes section. The next 16 bits are  
the data bits. These are transferred to the DAC register on the  
2±th falling edge of LCꢀK.  
E15  
S11  
V
REF  
12-BIT R-2R LADDER  
FOUR MSBs DECODED INTO  
15 EQUAL SEGMENTS  
Figure 37. DAC Ladder Structure  
REFERENCE BUFFER  
SYNC INTERRUPT  
The AD5061 operates with an external reference. The reference  
input (VREF) has an input range of 2 V to VDD − 50 mV. This  
input voltage is then used to provide a buffered reference for the  
DAC core.  
In a normal write sequence, the  
line is kept low for at  
LYNC  
least 2± falling edges of LCꢀK and the DAC is updated on the  
2±th falling edge. However, if is brought high before the  
LYNC  
2±th falling edge, this acts as an interrupt to the write sequence.  
The shift register is reset and the write sequence is seen as  
invalid. Neither an update of the DAC register contents nor a  
change in the operating mode occurs; see Figure ±1.  
SERIAL INTERFACE  
LYNC  
The AD5061 has a 3-wire serial interface (  
, LCꢀK, and  
DIN), which is compatible with LPI, QLPI, and MICROWIRE  
interface standards, as well as most DLPs. Lee Figure 2 for a  
timing diagram of a typical write sequence.  
DB15 (MSB)  
DB0 (LSB)  
0
0
0
0
0
0
PD1  
PD0  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
DATA BITS  
NORMAL OPERATION  
3-STATE  
0
0
1
1
0
1
0
1
100kTO GND  
1kTO GND  
POWER-DOWN MODES  
Figure 38. Input Register Contents  
Rev. A | Page 15 of 20  
 
 
 

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