參數(shù)資料
型號(hào)： DAC7574EVM
廠商： Texas Instruments, Inc.
英文描述： DAC7574 Evaluation Module(DAC7574評(píng)估模塊)
中文描述： DAC7574評(píng)估模塊（DAC7574評(píng)估模塊）
文件頁(yè)數(shù)： 33/39頁(yè)
文件大?。?/td> 437K
代理商： DAC7574EVM
The Output Op Amp
3-5
EVM Operation
Table 3-7.DAC7574/DAC6574/DAC5574 I
2
C Slave Address Map
Factory Set I
2
C Address
W7
W8
R/W
I
2
C Address and
Function
0x9E (Write)
0x9C (Write)
0x9A (Write)
0x98 (Write)
0x9F (Read)
0x9D (Read)
0x9B (Read)
0x99 (Read)
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Open
Open
Close
Close
Open
Open
Close
Close
Open
Close
Open
Close
Open
Close
Open
Close
0
0
0
0
1
1
1
1
Table 3-8.DAC7571/DAC6571/DAC5571 I
2
C Slave Address Map
Factory Set I
2
C Address
Address Resistor
R/W
I
2
C Address and
Function
1
0
0
1
1
0
R22 installed
R13 installed
R22 not installed
R13 installed
R22 installed
R13 installed
R22 not installed
0
0x98 (Write)
1
0
0
1
1
0
0
0 9A (Write)
0x9A (Write)
1
0
0
1
1
0
1
0x99 (Read)
1
0
0
1
1
0
1
0x9B (Read)
R13 installed
Table 3-9.DAC8571 I
2
C Slave Address Map
Factory Set I
2
C
Address
Address Resistor
See
Note
R/W
I
2
C Address and
Function
1
0
0
1
1
R2 installed
R23 installed
R2 installed
R23 not installed
R2 installed
R23 installed
R2 installed
R23 not installed
0
0
0 98 (Write)
0x98 (Write)
1
0
0
1
1
0
0
0x9C (Write)
1
0
0
1
1
0
1
0x99 (Read)
1
0
0
1
1
0
1
0x9D (Read)
Note:
Shaded columns represent factory-set I
2
C address bits.
3.4
The Output Op Amp
The EVM includes an optional signal conditioning circuit for the DAC output
through an external operational amplifier, U2. Only one DAC output channel
can be monitored at any given time for evaluation since the odd numbered pins
(J4-1 to J4-7) are tied together. The output op-amp is configured to unity gain
by default. Nevertheless, the raw outputs of the DAC can be probed through
the even pins of J4, the output terminal, which also provides mechanical
stability when stacking or plugging into any interface card. J4 also provides
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