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DAC7614UBG4 PDF预览

DAC7614UBG4

更新时间： 2024-02-17 03:00:33
品牌 Logo 应用领域
德州仪器 - TI 光电二极管转换器数模转换器
页数 文件大小 规格书
17页 529K
描述
四路串行输入 12 位电压输出数模转换器 | DW | 16 | -40 to 85

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DAC7614UBG4 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：SOP, SOP16,.4针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.78最大模拟输出电压：2.5 V
最小模拟输出电压：-2.5 V转换器类型：D/A CONVERTER
输入位码：BINARY输入格式：SERIAL
JESD-30 代码：R-PDSO-G16JESD-609代码：e4
长度：10.3 mm最大线性误差 (EL)：0.0244%
湿度敏感等级：3标称负供电电压：-5 V
位数：12功能数量：1
端子数量：16最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP16,.4
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260电源：5/+-5 V
认证状态：Not Qualified采样速率：0.089 MHz
座面最大高度：2.65 mm最大稳定时间：10 µs
标称安定时间 (tstl)：10 µs子类别：Other Converters
最大压摆率：1.9 mA标称供电电压：5 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：7.5 mm

DAC7614UBG4 数据手册

 浏览型号DAC7614UBG4的Datasheet PDF文件第6页浏览型号DAC7614UBG4的Datasheet PDF文件第7页浏览型号DAC7614UBG4的Datasheet PDF文件第8页浏览型号DAC7614UBG4的Datasheet PDF文件第10页浏览型号DAC7614UBG4的Datasheet PDF文件第11页浏览型号DAC7614UBG4的Datasheet PDF文件第12页 
ANALOG OUTPUTS  
THEORY OF OPERATION  
When VSS = –5V (dual supply operation), the output  
amplifier can swing to within 2.25V of the supply rails,  
over the –40°C to +85°C temperature range. With VSS = 0V  
(single-supply operation), the output can swing to ground.  
Note that the settling time of the output op amp will be  
longer with voltages very near ground. Also, care must be  
taken when measuring the zero-scale error when VSS = 0V.  
If the output amplifier has a negative offset, the output  
voltage may not change for the first few digital input codes  
(000H, 001H, 002H, etc.) since the output voltage cannot  
swing below ground.  
The DAC7614 is a quad, serial input, 12-bit, voltage output  
DAC. The architecture is a classic R-2R ladder configuration  
followed by an operational amplifier that serves as a buffer.  
Each DAC has its own R-2R ladder network and output op  
amp, but all share the reference voltage inputs. The minimum  
voltage output (“zero-scale”) and maximum voltage output  
(“full-scale”) are set by external voltage references (VREFL  
and VREFH, respectively). The digital input is a 16-bit serial  
word that contains the 12-bit DAC code and a 2-bit address  
code that selects one of the four DACs (the two remaining  
bits are unused). The converter can be powered from a single  
+5V supply or a dual ±5V supply. Each device offers a reset  
function which immediately sets all DAC output voltages and  
internal registers to either zero-scale (code 000H) or mid-scale  
(code 800H). The reset code is selected by the state of the  
RESETSEL pin (LOW = 000H, HIGH = 800H). See Figures  
1 and 2 for the basic operation of the DAC7614.  
The behavior of the output amplifier can be critical in some  
applications. Under short-circuit conditions (DAC output  
shorted to ground), the output amplifier can sink a great deal  
more current than it can source. See the Specifications table  
for more details concerning short-circuit current.  
+5V  
DAC7614(1)  
+
1µF to 10µF  
0.1µF  
0.1µF  
1
2
3
4
5
6
7
8
VDD  
RESETSEL 16  
Reset DACs(2)  
VOUTD  
VOUTC  
VREFL  
VREFH  
VOUTB  
VOUTA  
VSS  
RESET 15  
LOADDACS 14  
NIC 13  
0V to +2.5V  
0V to +2.5V  
Update Selected Register  
+2.500V  
Chip Select  
Clock  
CS 12  
CLK 11  
0V to +2.5V  
0V to +2.5V  
Serial Data In  
SDI 10  
GND  
9
NOTES: (1) P and U package pin configurations shown. (2) As configured, RESET LOW sets all internal registers  
to code 000H (0V). If RESETSEL is HIGH, RESET LOW sets all internal registers to code 800H (1.25V).  
FIGURE 1. Basic Single-Supply Operation of the DAC7614.  
DAC7614(1)  
+5V  
+
1µF to 10µF  
0.1µF  
+5V  
1
2
3
4
5
6
7
8
VDD  
RESETSEL 16  
Reset DACs(2)  
VOUTD  
VOUTC  
VREFL  
VREFH  
VOUTB  
VOUTA  
VSS  
RESET 15  
LOADDACS 14  
NIC 13  
–2.5V to +2.5V  
–2.5V to +2.5V  
Update Selected Register  
–2.500V  
0.1µF  
0.1µF  
Chip Select  
Clock  
CS 12  
+2.500V  
CLK 11  
Serial Data In  
SDI 10  
–2.5V to +2.5V  
–2.5V to +2.5V  
GND  
9
–5V  
1µF to 10µF  
0.1µF  
+
NOTES: (1) P and U package pin configurations shown. (2) As configured, RESET LOW sets all internal register  
to code 800H (0V). If RESETSEL is LOW, RESET LOW sets all internal registers to code 000H (–2.5V).  
FIGURE 2. Basic Dual-Supply Operation of the DAC7614.  
®
9
DAC7614  
1...6789101112...17

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