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參數(shù)資料
| 型號： | MAX5295ETE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Single Supply RS232C Line Driver/Receiver(?????μ?o?RS232C ?o?????????¨???2???2??????) |
| 中文描述： | SERIAL INPUT LOADING, 2 us SETTLING TIME, 8-BIT DAC, QCC16 |
| 封裝： | 4 X 4 MM, 0.80 MM HEIGHT, MO-220WGGC, TQFN-16 |
| 文件頁數(shù)： | 28/33頁 |
| 文件大小： | 941K |
| 代理商： | MAX5295ETE |
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M
Buffered, Fast-Settling, Dual, 12-/10-/8-Bit,
Voltage-Output DACs
28
______________________________________________________________________________________
Applications Information
Unipolar Output
Figure 7 shows the unity gain of the MAX5290 in a
unipolar output configuration. Table 24 lists the unipolar
output codes.
Bipolar Output
The MAX5290 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 MAX5291/MAX5293/MAX5295 have force-sense out-
puts, which provide a connection directly to the inverting
terminal of the output op amp, yielding the most flexibility.
The advantage of the force-sense output is that specific
gains can be set externally for a given application. The
gain error for the MAX5291/MAX5293/MAX5295 is speci-
fied 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
MAX5291
’
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, if R2 = 12k
and R1 = 10k
, 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
MAX5290
DAC_
REF
OUT_
10k
10k
V+
V-
V
OUT_
MAX5291
DAC_
REF
OUT_
FB_
R2 = 12k
0.1%
25ppm
R1 = 10k
0.1%
25ppm
Figure 9. Configurable Output Gain
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX5295EUE | Single Supply RS232C Line Driver/Receiver(?????μ?o?RS232C ?o?????????¨???2???2??????) |
| MAX5290BETE | Buffered, Fast-Settling, Dual, 12-/10-/8-Bit, Voltage-Output DACs |
| MAX5291BETE | Buffered, Fast-Settling, Dual, 12-/10-/8-Bit, Voltage-Output DACs |
| MAX530 | +5V, Low-Power, Parallel-Input, Voltage-Output, 12-Bit DAC(單通道,電壓輸出,12位并行D/A轉(zhuǎn)換器) |
| MAX5312EAE | +-10V, 12-Bit, Serial, Voltage-Output DAC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5295EUE | 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 |
| MAX5295EUE+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 2Ch 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 |
| MAX5295EUE+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 8-Bit 2Ch 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 |
| MAX5295EUE-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 |
| MAX529C/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 |
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