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AD5557CRUZ Datasheet(数据表) 9 Page - Analog Devices

部件型号  AD5557CRUZ
说明  Dual-Current Output, Parallel Input, 16-/14-Bit Multiplying DACs
下载  20 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
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AD5557CRUZ Datasheet(HTML) 9 Page - Analog Devices

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Data Sheet
AD5547/AD5557
Rev. D | Page 9 of 20
Pin No.
Mnemonic
Function
23
RS
Active low resets both input and DAC registers. Resets to zero-scale if MSB = 0 and resets to midscale if MSB = 1.
Signal level must be ≤V
DD + 0.3 V.
24 to 28,
30 to 38
D13 to D0
Digital Input Data Bits D13 to D0. Signal level must be ≤V
DD + 0.3 V.
29
VDD
Positive Power Supply Input. The specified range of operation is 2.7 V to 5.5 V.
Table 5. Address Decoder Pins
A1
A0
Output Update
0
0
DAC A
0
1
None
1
0
DAC A and DAC B
1
1
DAC B
Table 6. Control Inputs
RS
WR
LDAC
Register Operation
0
X
X
Reset the output to 0 with MSB = 0; reset the output to midscale with MSB = 1.
1
0
0
Load the input register with data bits.
1
1
1
Load the DAC register with the contents of the input register.
1
0
1
The input and DAC registers are transparent.
1
When LDAC and WR are tied together and programmed as a pulse, the data bits are loaded into the input register
on the falling edge of the pulse and are then loaded into the DAC register on the rising edge of the pulse.
1
1
0
No register operation.




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