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參數(shù)資料
| 型號： | MAX5290AETE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Buffered, Fast-Settling, Dual, 12-/10-/8-Bit, Voltage-Output DACs |
| 中文描述： | SERIAL INPUT LOADING, 3 us SETTLING TIME, 12-BIT DAC, QCC16 |
| 封裝： | 4 X 4 MM, 0.80 MM HEIGHT, MO-220WGGC, TQFN-16 |
| 文件頁數(shù)： | 27/33頁 |
| 文件大?。?/td> | 941K |
| 代理商： | MAX5290AETE |
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M
Buffered, Fast-Settling, Dual, 12-/10-/8-Bit,
Voltage-Output DACs
______________________________________________________________________________________
27
GPI, GPOL, GPOH
UPIO1 and UPIO2 can each be configured as a gener-
al-purpose logic input (GPI), a general-purpose logic-
low output (GPOL), or general-purpose logic-high
output (GPOH).
The GPI can detect interrupts from μPs or microcon-
trollers. It provides three functions:
1) Sample the signal at GPI at the time of the read
(RTP1 and RTP2).
2) Detect whether or not a falling edge has occurred
since the last read or reset (LF1 and LF2).
3) Detect whether or not a rising edge has occurred
since the last read or reset (LR1 and LR2).
RTP1, LF1, and LR1 represent the data read from
UPIO1. RTP2, LF2, and LR2 represent the data read
from UPIO2.
To issue a read command for the UPIO configured as
GPI, use the command in Table 23.
Once the command is issued, RTP1 and RTP2 provide
the real-time status (0 or 1) of the inputs at UPIO1 or
UPIO2, respectively, at the time of the read. If LF2 or
LF1 is one, then a falling edge has occurred on the
UPIO1 or UPIO2 input since the last read or reset. If
LR2 or LR1 is one, then a rising edge has occurred
since the last read or reset.
GPOL outputs a constant logic low, and GPOH outputs
a constant logic high (see Figure 6).
TOGG
Use the TOGG input to toggle a DAC output between
the values in the input register and DAC register. A
delay of greater than 100ns from the end of the previ-
ous write command is required before the TOGG signal
can be correctly switched between the new value and
the previously stored value. When TOGG = 0, the out-
put follows the information in the input registers. When
TOGG = 1, the output follows the information in the
DAC register (Figure 5).
FAST
The MAX5290
–
MAX5295 have two settling-time-mode
options: FAST (3μs max at 12 bits) and SLOW (6μs max
at 12 bits). To select the FAST mode, drive
FAST
low,
and to select SLOW mode, drive
FAST
high. This over-
rides (not overwrites) the SPDA and SPDB bit settings.
Table 23. GPI Read Command
DATA
DIN
DOUTRB
X = Don’t care.
CONTROL BITS
1
1
X
X
DATA BITS
X
X
RTP2
1
X
1
X
0
X
0
X
1
X
X
X
X
X
X
X
X
X
X
X
LF2
LR2
RTP1
LF1
LR1
Table 24. Unipolar 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
(4095 / 4096)
+V
REF
(2049 / 4096)
+V
REF
(2048 / 4096) = V
REF
/ 2
+V
REF
(2047 / 4096)
+V
REF
(1 / 4096)
0
MAX5290
DAC_
REF
OUT_
V
OUT_
= V
REF
x CODE / 4096
CODE IS THE DAC_ INPUT
CODE (0 TO 4095 DECIMAL).
Figure 7. Unipolar Output Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| MAX5290AEUD | 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 |
| MAX5290AEUD-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 |
| MAX5290AEUE | 制造商:Maxim Integrated Products 功能描述:BUFFERED, FAST SETTLING, DUAL 12-/10-/8-BIT V - Rail/Tube |
| MAX5290BEUD | 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 |
| MAX5290BEUD+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-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 |
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