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DAC-HK12BMC-C

更新时间： 2024-11-26 02:54:43
品牌 Logo 应用领域
达特尔 - DATEL /
页数 文件大小 规格书
5页 197K
描述
High-Performance, 12-Bit DAC’s with Input Registers

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DAC-HK12BMC-C 数据手册

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DAC-HK Series  
High-Performance, 12-Bit DAC’s with Input Registers  
FEATURES  
„
„
„
„
„
„
„
12-Bit resolution  
Integral nonlinearity error 1/2LSB, max.  
Differential nonlinearity error 3/4LSB, max.  
MIL-STD-883 high-reliability versions available  
Input register  
3μs fast settling time  
Guaranteed monotonicity over full temperature  
range  
PRODUCT OVERVIEW  
INPUT/OUTPUT CONNECTIONS  
The DAC-HK Series hybrid D/A converters are  
highperformance 12-bit devices with a fast settling reference circuit. This eliminates code-dependent  
voltage output. They incorporate a level-controlled ground currents by routing current from the  
input storage register and are specifically designed positive supply to the internal ground node as  
for systems applications such as data bus interfac- determined by the R-2R ladder network. The  
The DAC-HK Series contains a precision zener  
PIN FUNCTION  
PIN FUNCTION  
1
BIT 1 (MSB)  
BIT 2  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
REFERENCE OUT  
2
GAIN ADJUST  
+15V SUPPLY  
GROUND  
3
BIT 3  
4
BIT 4  
ing with computers. When the “load” input is high,  
data in the storage register is held, and when the  
load input is low, data is transferred through to  
the DAC. There are two basic models available by  
coding option: binary and two’s complement. The  
output voltage ranges are externally pinprogram-  
mable and include: 0 to +5V, 0 to +10V, 2.5V,  
5V and 10V.  
internal feedback resistors for the on-board ampli-  
fier track the ladder network resistors, enhancing  
temperature performance. The excellent tracking  
of the resistors results in a differential nonlinearity  
tempco of 2ppm/ꢀC maximum. The temperature  
coefficient of gain is 20ppm/ꢀC maximum, and  
the tempco of zero is 5ppm/ꢀC maximum.  
5
BIT 5  
SUMMING JUNCTION  
20V RANGE  
6
BIT 6  
7
BIT 7  
10V RANGE  
8
BIT 8  
BIPOLAR OFFSET  
LOAD  
9
BIT 9  
10  
11  
12  
BIT 10  
BIT 11  
BIT 12 (LSB)  
VOLTAGE OUTPUT  
–15V SUPPLY  
+5V SUPPLY  
BLOCK DIAGRAM  
REF.  
OUT  
24  
GAIN  
ADJUST  
23  
+15V  
SUPPLY SUPPLY  
22 14  
–15V  
+5V  
SUPPLY  
13  
BIPOLAR  
OFFSET  
17  
19 20V RANGE  
5k  
Ω
5k  
Ω
+5V  
18 10V RANGE  
D/A CONVERTER  
SUMMING  
20  
JUNCTION  
LOAD 16  
VOLTAGE  
15  
OUTPUT  
REGISTER  
74LS75  
REGISTER  
74LS75  
REGISTER  
74LS75  
21 GROUND  
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9 10 11 12  
9 10 11 12  
BITS  
MSB  
DIGITAL INPUTS  
LSB  
Figure 1. DAC-HK Functional Block Diagram  
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA  
•
Tel: (508) 339-3000  
•
www.datel.com  
•
e-mail: help@datel.com  
MDA_DAC-HK.C01 Page 1 of 5  
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