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參數(shù)資料
| 型號(hào)： | MAX5174AEEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類(lèi)： | 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(yè)數(shù)： | 12/16頁(yè) |
| 文件大小： | 255K |
| 代理商： | MAX5174AEEE |
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M
Low-Power, S erial, 12-Bit DACs
with Voltage Output
12
______________________________________________________________________________________
User-Programmable Logic Output (UPO)
The user-programmable logic output (UPO) allows con-
trol of an external device through the serial interface,
thereby reducing the number of microcontroller I/O pins
required. During power-down, this output will retain its
digital state prior to shutdown. When
CLR
is pulled low,
UPO will reset to its programmed default state. See
Table 1 for specific commands to control the UPO.
Reset (RS ) and Clear (
CLR
)
The MAX5174/MAX5176 offers a clear pin (
CLR
), which
resets the output voltage. If RS = DGND, then
CLR
resets the output voltage to 0. If RS = V
DD
, then
CLR
resets the output voltage to mid-scale. In either case,
CLR
will reset UPO to its programmed default state.
Applic ations Information
Unipolar Output
Figure 6 shows the MAX5174/MAX5176 configured for
unipolar, rail-to-rail operation with a gain of 1.638V/V.
Table 2 lists the codes for unipolar output voltages. The
output voltage is limited to V
DD
. Use the OS pin to intro-
duce an offset voltage as shown in Figure 7 and
described in the Offset and Buffer Configurations section.
Bipolar Output
Figure 8 shows the MAX5174/MAX5176 configured for
bipolar output operation. The output voltage is given by
the following equation (OS = AGND):
where N represents the numeric value of the DAC’s
binary input code and V
REF
is the voltage of the exter-
nal reference. Table 3 shows digital codes and the cor-
responding output voltage for Figure 8’s circuit.
V
V
N
OUT
REF
=
2
4096
1
CS
SCLK
DIN
COMMAND
EXECUTED
9
8
16
1
C1
C2
S0
C0
D9
D8
D7
D6
D3
D2
D1
D0
S2
S1
D5
D4
Figure 4. Serial-Interface Timing Diagram
CS
SCLK
DIN
DOUT
t
CSW
t
CS1
t
CSH
t
CSS
t
CSO
t
D02
t
CH
t
CL
t
CP
t
D01
t
DS
t
DH
Figure 5. Detailed Serial-Interface Timing Diagram
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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(lèi)型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)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(lèi)型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)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(lèi)型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)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(lèi)型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)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(lèi)型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)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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