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參數(shù)資料
| 型號： | MAX534AEPE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | +5V, Low-Power, 8-Bit Quad DAC with Rail-to-Rail Output Buffers |
| 中文描述： | SERIAL INPUT LOADING, 8 us SETTLING TIME, 8-BIT DAC, PDIP16 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-16 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 125K |
| 代理商： | MAX534AEPE |
M
+5V, Low-Power, 8-Bit Quad DAC
with Rail-to-Rail Output Buffers
______________________________________________________________________________________
13
__________Applic ations Information
DAC Linearity and V oltage Offset
The output buffer can have a negative input offset volt-
age that would normally drive the output negative, but
since there is no negative supply the output stays at 0V
(Figure 9). When linearity is determined using the end-
point method, it is measured between zero code (all
inputs 0) and full-scale code (all inputs 1) after offset
and gain error are calibrated out. However, in single-
supply operation the next code after zero may not
change the output, so the lowest code that produces a
positive output is the lower endpoint.
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
MAX534 unipolar configuration, and Table 2 shows the
unipolar code.
DAC CODE
0V
NEGATIVE
OFFSET
OUTPUT
VOLTAGE
Figure 9. Effect of Negative Offset (Single Supply)
OUTC
OUTD
AGND
OUTB
OUTA
REF
SYSTEM GND
Figure 10. Suggested PC Board Layout for Minimizing
Crosstalk (Bottom View)
DAC A
DAC B
DAC C
DAC D
REFAB
MAX534
OUTA
OUTB
OUTC
OUTD
SERIAL
INTERFACE
NOT SHOWN
REFERENCE INPUT
2
1
16
15
V
DD
+3V
3
13
14
12
AGND
DGND
Figure 11. Unipolar Output Circuit
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| MAX534AMJE | +5V, Low-Power, 8-Bit Quad DAC with Rail-to-Rail Output Buffers |
| MAX534BCEE | +5V, Low-Power, 8-Bit Quad DAC with Rail-to-Rail Output Buffers |
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| MAX534BEPE | +5V, Low-Power, 8-Bit Quad DAC with Rail-to-Rail Output Buffers |
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| MAX534AEPE+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 4Ch Precision 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 |
| MAX534AMJE | 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 |
| MAX534BC/D | 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 |
| MAX534BCEE | 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 |
| MAX534BCEE+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 4Ch Precision 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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