參數(shù)資料
型號： MAX5580AEUP
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： DAC
英文描述： Quadruple Low-Power Differential Line Receiver 16-CFP -55 to 125
中文描述： SERIAL INPUT LOADING, 3 us SETTLING TIME, 12-BIT DAC, PDSO20
封裝： 4.40 MM, MO-153ACT, TSSOP-20
文件頁數(shù)： 30/34頁
文件大小： 1206K
代理商： MAX5580AEUP
M
Buffered, Fast-Settling, Quad,
12-/10-/8-Bit, Voltage-Output DACs
30
______________________________________________________________________________________
Applications Information
Unipolar Output
Figure 7 shows the unity-gain MAX5580 in a unipolar
output configuration. Table 23 lists the unipolar out-
put codes.
Bipolar Output
The MAX5580 outputs can be configured for bipolar
operation, as shown in Figure 8. The output voltage is
given by the following equation:
V
OUT_
= V
REF
x (CODE - 2048) / 2048
where CODE represents the numeric value of the
DAC’s binary input code (0 to 4095 decimal). Table 24
shows digital codes and the corresponding output volt-
age for the circuit in Figure 8.
Configurable Output Gain
The MAX5581/MAX5583/MAX5585 have force-sense
outputs, which provide a direct connection to the invert-
ing terminal of the output op amp, yielding the most
flexibility. The force-sense output has the advantage
that specific gains can be set externally for a given
application. The gain error for the MAX5581/MAX5583/
MAX5585 is specified in a unity-gain configuration (op-
amp output and inverting terminals connected), and
additional gain error results from external resistor
tolerances. The force-sense DACs allow many useful
circuits to be created with only a few simple external
components.
An example of a custom, fixed gain using the
MAX5581’s force-sense output is shown in Figure 9. In
this example, the external reference is set to 1.25V, and
the gain is set to +1.1V/V with external discrete resis-
tors to provide an approximate 0 to 1.375V DAC output
voltage range.
V
OUT
= [(0.5 x V
REF_
x CODE) / 4096] x [1 + (R2 / R1)]
where CODE represents the numeric value of the
DAC’s binary input code (0 to 4095 decimal).
In this example, R2 = 12k
and R1 = 10k
to set the
gain = 1.1V/V:
V
OUT
= [(0.5 x 1.25V x CODE) / 4096] x 2.2
Table 24. Bipolar Code Table (Gain = +1)
DAC CONTENTS
MSB
1111
1111
1000
0000
1000
0000
0111
1111
0000
0000
0000
0000
LSB
1111
0001
0000
1111
0001
0000
ANALOG OUTPUT
+V
REF
(2047 / 2048)
+V
REF
(1 / 2048)
0
-V
REF
(1 / 2048)
-V
REF
(2047 / 2048)
-V
REF
(2048 / 2048) = -V
REF
Figure 8. Bipolar Output Circuit
MAX5580
MAX5582
MAX5584
DAC_
REF
10k
10k
V+
V-
V
OUT_
MAX6126
MAX5581
DAC_
REF
OUT_
FB_
R2 = 12k
0.1%
25ppm
R1 = 10k
0.1%
25ppm
MAX6126
Figure 9. Configurable Output Gain
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5580AEUP+ 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-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
MAX5580AEUP+T 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-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
MAX5580AEUP-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
MAX5580BETP 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
MAX5580BETP+ 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-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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