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參數(shù)資料
| 型號： | MAX5590BEUG |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Buffered, Fast-Settling, Octal, 12/10/8-Bit, Voltage-Output DACs |
| 中文描述： | PARALLEL, WORD INPUT LOADING, 3 us SETTLING TIME, 12-BIT DAC, PDSO24 |
| 封裝： | 4.40 MM, MO-153AD, TSSOP-24 |
| 文件頁數(shù)： | 30/33頁 |
| 文件大?。?/td> | 1114K |
| 代理商： | MAX5590BEUG |
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M
Buffered, Fast-Settling, Octal, 12/10/8-Bit,
Voltage-Output DACs
30
______________________________________________________________________________________
Applications Information
Unipolar Output
Figure 7 shows the unity-gain MAX5590 in a unipolar
output configuration. Table 24 lists the unipolar out-
put codes.
Bipolar Output
The MAX5590 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 25
shows digital codes and the corresponding output volt-
age for the Figure 8 circuit.
Configurable Output Gain
The MAX5591/MAX5593/MAX5595 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 MAX5591/MAX5593/
MAX5595 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
MAX5591’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 25. 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
MAX5590
DAC_
REF
OUT_
10k
10k
V+
V-
V
OUT
MAX5591
DAC_
REF
OUT_
FB_
R2 = 12k
0.1%
25ppm
R1 = 10k
0.1%
25ppm
Figure 9. Configurable Output Gain
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相關(guān)代理商/技術(shù)參數(shù) |
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| MAX5590BEUG+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit 8Ch 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5590BEUG+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit 8Ch 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5590BEUG-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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5591AEUI | 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5591AEUI+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 256-Tap Digi Pot 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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