參數資料
型號: MAX510
廠商: Maxim Integrated Products, Inc.
英文描述: Quad, Serial 8-Bit DACs with Rail-to-Rail Outputs(四通道,電壓輸出,串行,8位D/A轉換器)
中文描述: 四路、串行、8位DAC,滿擺幅輸出
文件頁數: 17/20頁
文件大?。?/td> 306K
代理商: MAX510
M
Quad, S erial 8-Bit DACs
with Rail-to-Rail Outputs
______________________________________________________________________________________
17
Figure 14. MAX509 AGND Bias Circuit (Negative Offset)
DAC A
DAC B
DAC C
DAC D
MAX509
OUTA
OUTB
OUTC
OUTD
SERIAL
INTERFACE
NOT SHOWN
REFERENCE INPUTS
2
1
20
19
V
DD
+5V
16
5
17
4
18
3
-5V
8
V
SS
AGND
DGND
6
0.1
μ
F
0.1
μ
F
MAX873
+5V
0.1
μ
F
R1
330k
0.1%
+5V
+2.5V
0.1
μ
F
0.1
μ
F
-5V
6
8
7
2
3
1
R2
330k
0.1%
ICL7611A
4-Quadrant Multiplic ation
Each DAC output may be configured for 4-quadrant
multiplication using Figure 16 and 17's circuit. One op
amp and two resistors are required per channel. With
R1 = R2:
V
OUT
= V
REF
[2(NB/256)-1]
where NB represents the digital word in DAC register A.
The recommended value for resistors R1 and R2 is
330k
(±0.1%). Table 3 shows the digital code vs. out-
put voltage for Figure 16 and 17's circuit.
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