參數(shù)資料
型號(hào)： MAX5741
廠商： Maxim Integrated Products, Inc.
英文描述： 10-bit，low-power，quad，voltage-output DAC with serial interface
中文描述： 10位、低功耗、四路、電壓輸出DAC，串行接口
文件頁數(shù)： 10/15頁
文件大?。?/td> 635K
代理商： MAX5741
M
10-Bit, Low-Power, Quad, Voltage-Output
DAC with Serial Interface
10
______________________________________________________________________________________
tents to the DAC latch.
CS
may then either be held low
or brought high.
CS
must be brought high for a mini-
mum of 80ns before the next write sequence, since a
write sequence is initiated on a falling edge of
CS
. Not
keeping
CS
low during the first 15 SCLK cycles dis-
cards input data. The serial clock (SCLK) can idle
either high or low between transitions.
The MAX5741 has two internal registers per DAC, the
input register and the DAC register. The input register
holds the data that is waiting to be shifted to the DAC
register. All four input registers can be loaded without
updating the output. This function is useful when all out-
puts need to be updated at the same time. The input
register can be made transparent. When the input reg-
ister is transparent, the data written into DIN loads
directly to the DAC register and the output is updated.
The DAC output is not updated until data is written to
the DAC register. See Table 2 for a list of serial-inter-
face programming commands.
Power-On Reset (POR)
The MAX5741 has an internal POR circuit. At power-up all
DACs are powered-down and OUT_ is terminated to
GND through 100k
resistors. Contents of input and DAC
registers are cleared to all zero. 8μs recovery time after
issuing a wake-up command is needed before writing to
the DAC registers. Power-down mode control commands
can be applied immediately with no recovery time.
C3
–
C0 are control bits. The data bits D9 to D0 are in
straight binary format. Set bits S1 and S0 to zero. All
zeros correspond to zero scale and all ones corre-
spond to full scale.
EXTENDED
CONTROL
DATA BITS
C3
1
1
1
1
C2
1
1
1
1
C1
1
1
1
1
C0
1
1
1
1
D9–D3
X
X
X
X
D4
0
0
0
0
D3
0
0
0
0
D2
0
0
0
0
S1
0
0
1
1
S0
0
1
0
1
DESCRIPTION
FUNCTION
DAC A
DAC A
DAC A
DAC A
DAC O/P, wake-up
Floating output
Output is terminated with 1k
Output is terminated with 100k
DAC O/P, wake-up
Floating output
Output is terminated with 1k
Output is terminated with 100k
DAC O/P, wake-up
Floating output
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
X
X
X
X
X
X
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
1
1
0
0
0
1
0
1
0
1
DAC B
DAC B
DAC B
DAC B
DAC C
DAC C
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
X
X
X
X
X
X
0
0
0
0
0
0
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
0
1
1
0
1
0
1
0
1
DAC C
DAC C
DAC D
DAC D
DAC D
DAC D
Output is terminated with 1k
Output is terminated with 100k
DAC O/P, wake-up
Floating output
Output is terminated with 1k
Output is terminated with 100k
DAC O/P, wake-up
Floating output
Output is terminated with 1k
Output is terminated with 100k
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
X
X
X
X
1
1
1
1
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
1
DAC A-D
DAC A-D
DAC A-D
DAC A-D
Table 1. Power-Down Mode Control
X = Don’t Care
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