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參數(shù)資料
| 型號： | MAX5174AEEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Low-Power, Serial, 12-Bit DACs with Voltage Output |
| 中文描述： | SERIAL INPUT LOADING, 18 us SETTLING TIME, 12-BIT DAC, PDSO16 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, QSOP-16 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 255K |
| 代理商： | MAX5174AEEE |
M
Low-Power, S erial, 12-Bit DACs
with Voltage Output
Offset and Buffer Configurations
The simple circuit of Figure 7 illustrates how to intro-
duce an offset to the output voltage. The amount of off-
set introduced by a voltage at the OS pin is shown in
the following equation:
V
OFFSET
= V
OS
·
(1- Gain)
where Gain = 1.638.
However, the total output voltage of the device cannot
exceed V
DD
, regardless of the voltage on the OS pin.
To set the gain of the output amplifier to 1, connect OS
to OUT.
Daisy-Chaining Devic es
The serial-data output pin (DOUT) allows multiple
MAX5174/MAX5176s to be daisy-chained together as
shown in Figure 9. The advantage of this is that only two
lines are needed to control all the DACs. The disadvan-
tage is that it takes ncommands to program the DACs.
Figure 10 shows several MAX5174/MAX5176s sharing
one common DIN signal line. In this configuration the
data bus is common to all devices; however, more I/O
lines are required because each device needs a dedi-
cated
CS
line. The advantage of this configuration is
that only one command is needed to program any DAC.
DAC CONTENTS
MSB
11 1111 1111 11 (00)
10 0000 0000 01 (00)
10 0000 0000 00 (00)
01 1111 1111 11 (00)
00 0000 0000 01 (00)
00 0000 0000 00 (00)
LSB
+V
REF
(2049/4096)
·
1.638
+V
REF
(2048/4096)
·
1.638
+V
REF
(2047/4096)
·
1.638
+V
REF
(1/4096)
·
1.638
0
+V
REF
(4095/4096)
·
1.638
ANALOG OUTPUT
Table 2. Unipolar Code Table
(Circuit of Figure 6)
MAX5174
MAX5176
DAC
REF
OUT
OS
DGND
AGND
+5V/+3V
V
DD
Figure 6. Unipolar Output Circuit (Rail-to-Rail)
DAC CONTENTS
MSB
11 1111 1111 11 (00)
10 0000 0000 01 (00)
10 0000 0000 00 (00)
LSB
+V
REF
[(2 · 2049/4096) - 1]
+V
REF
[(2 · 2048/4096) - 1]
+V
REF
[(2 · 4095/4096) - 1]
ANALOG OUTPUT
01 1111 1111 11 (00)
00 0000 0000 01 (00)
00 0000 0000 00 00
+V
REF
[(2 · 2047/4096) - 1]
+V
REF
[(2 · 1/4096) - 1]
-V
REF
Table 3. Bipolar Code Table
(Circuit of Figure 8)
Figure 7. Setting OS for Output Offset
MAX5174
MAX5176
DAC
AGND
DGND
REF
OUT
OS
V
OS
+5V/+3V
V
DD
________________________________________________________________________________________13
TOLERANCES: 10k
±0.1%
AGND
DGND
MAX5174
MAX5176
DAC
REF
OS
OUT
10k
10k
V-
V+
V
DD
V
OUT
+5V/+3V
Figure 8. Bipolar Output Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5174AEEE+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit 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 |
| MAX5174AEEE+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit 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 |
| MAX5174AEEE-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 |
| MAX5174BEEE | 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 |
| MAX5174BEEE+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit 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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