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參數(shù)資料
| 型號： | MAX533 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Single Universal Serial Bus Port Transient Suppressor 4-DSBGA -40 to 85 |
| 中文描述： | 2.7V、低功耗、8位四路DAC，帶有滿擺幅輸出緩沖器 |
| 文件頁數(shù)： | 14/16頁 |
| 文件大?。?/td> | 146K |
| 代理商： | MAX533 |
M
Power S equenc ing
The voltage applied to REF should not exceed V
DD
at
any time. If proper power sequencing is not possible,
connect an external Schottky diode between REF and
V
DD
to ensure compliance with the absolute maximum
ratings. Do not apply signals to the digital inputs before
the device is fully powered up.
Power-S upply Bypassing
and Ground Management
Connect AGND and DGND together at the IC. This
ground should then return to the highest-quality ground
available. Bypass V
DD
with a 0.1μF capacitor, located
as close to V
DD
and DGND as possible.
Careful PC board layout minimizes crosstalk among
DAC outputs and digital inputs. Figure 10 shows sug-
gested circuit board layout to minimize crosstalk.
Unipolar-Output,
T wo-Quadrant Multiplic ation
In unipolar operation, the output voltages and the refer-
ence input are the same polarity. Figure 11 shows the
MAX533 unipolar configuration, and Table 2 shows the
unipolar code.
2.7V, Low-Power, 8-Bit Quad DAC
with Rail-to-Rail Output Buffers
14
______________________________________________________________________________________
Table 2. Unipolar Code Table
Note:
1LSB = (V
REF
) (2
-8
) = +V
REF
(
–1
)
256
+V
REF
(
–1
)
256
0 0 0 1
0 0 0 0
0V
0 0 0 0
0 0 0 0
256
+V
REF
(
127
)
1 1 1 1
0 1 1 1
–––
256 2
+V
REF
(
128 V
= + –
0 0 0 0
1 0 0 0
256
+V
REF
(
129
)
0 0 0 1
1 0 0 0
256
+V
REF
(
255
)
1 1 1 1
1 1 1 1
ANALOG
OUTPUT
LSB
MSB
DAC CONTENTS
DAC CODE
0V
NEGATIVE
OFFSET
OUTPUT
VOLTAGE
Figure 9. Effect of Negative Offset (Single Supply)
R1
R0
REF
D7
D5
D6
D4
R15
R16
R255
LSB DECODER
D2
D3
DAC A
D1
D0
M
Figure 8. DAC Simplified Circuit Diagram
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| MAX5331UCB-TD | 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 |
| MAX5331UGK | 制造商:Maxim Integrated Products 功能描述:12-BIT 32 CHANNEL S&H VOUT DAC W/ 50W TERMINA - Rail/Tube |
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