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參數(shù)資料
| 型號： | MAX509BCWP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Quad, Serial 8-Bit DACs with Rail-to-Rail Outputs |
| 中文描述： | QUAD, SERIAL INPUT LOADING, 6 us SETTLING TIME, 8-BIT DAC, PDSO20 |
| 封裝： | SOP-20 |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 235K |
| 代理商： | MAX509BCWP |
M
Quad, S erial 8-Bit DACs
with Rail-to-Rail Outputs
______________________________________________________________________________________
15
Unipolar-Output, 2-Quadrant Multiplic ation
In unipolar operation, the output voltages and the refer-
ence input(s) are the same polarity. Figures 11 and 12
show the MAX509/MAX510 unipolar configurations.
Both devices can be operated from a single supply if
the reference inputs are positive. If dual supplies are
used, the reference input can vary from V
SS
to V
DD
.
Table 2 shows the unipolar code.
Bipolar-Output, 2-Quadrant Multiplic ation
Bipolar-output, 2-quadrant multiplication is achieved by
offsetting AGND positively or negatively. Table 3 shows
the bipolar code.
AGND can be biased above DGND to provide an arbi-
trary nonzero output voltage for a 0 input code, as
shown in Figure 13. The output voltage at OUTA is:
V
OUTA
= V
BIAS
+ (NB/256)(V
IN
),
Figure 9. Suggested MAX509 PC Board Layout for Minimizing
Crosstalk (Bottom View)
OUTC
OUTD
V
DD
REFC
REFD
OUTB
OUTA
V
SS
REFB
REFA
SYSTEM GND
AGND
Figure 10. Suggested MAX510 PC Board Layout for Minimizing
Crosstalk (Bottom View)
OUTC
OUTD
V
DD
REFCD
OUTB
OUTA
V
SS
REFAB
SYSTEM GND
AGND
DAC CONTENTS
MSB
LSB
ANALOG
OUTPUT
1 1 1 1
1 1 1 1
256
+V
REF
(
255
)
1 0 0 0
0 0 0 1
256
+V
REF
(
129
)
1 0 0 0
0 0 0 0
–––
256 2
+V
REF
(
128 V
= + –
0 1 1 1
1 1 1 1
256
+V
REF
(
127
)
0 0 0 0
0 0 0 0
0V
0 0 0 0
0 0 0 1
+V
REF
(
–1
)
256
Table 2. Unipolar Code Table
Note:
1LSB = (V
REF
) (2-8) = +V
REF
(
–1
)
256
Table 3. Bipolar Code Table
1 0 0 0
DAC CONTENTS
0 0 0 1
MSB
LSB
ANALOG
OUTPUT
1 1 1 1
1 1 1 1
128
+V
REF
(
127
)
+V
REF
(
–1
)
128
1 0 0 0
0 0 0 0
0V
0 1 1 1
1 1 1 1
-V
REF
(
–1
)
128
0 0 0 0
0 0 0 0
128
-V
REF
(
128
)
= -V
REF
0 0 0 0
0 0 0 1
128
-V
REF
(
127
)
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| MAX509BCWP-T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX509BEAP | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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