Output DACs with Internal Reference and I
參數(shù)資料
型號： MAX5815BAUD+T
廠商： Maxim Integrated Products
文件頁數(shù)： 18/30頁
文件大?。?/td> 0K
描述： IC DAC 12BIT SRL 4CH 14TSSOP
產(chǎn)品培訓模塊： Obsolescence Mitigation Program
標準包裝： 2,500
設置時間： 4.5µs
位數(shù)： 12
數(shù)據(jù)接口： I²C，串行
轉(zhuǎn)換器數(shù)目： 4
電壓電源： 模擬和數(shù)字
功率耗散（最大）： 797mW
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 14-TSSOP（0.173"，4.40mm 寬）
供應商設備封裝： 14-TSSOP
包裝： 帶卷 (TR)
輸出數(shù)目和類型： 4 電壓，單極
MAX5813/MAX5814/MAX5815
Ultra-Small, Quad-Channel, 8-/10-/12-Bit Buffered
Output DACs with Internal Reference and I2C Interface
25
Maxim Integrated
CONFIG Command
The CONFIG command (B[23:20] = 0110) updates the
LDAC and LOAD functions of selected DACs. Issue the
command with B16 = 0 to allow the DAC latches to oper-
ate normally or with B16 = 1 to disable the DAC latches,
making them perpetually transparent. Mode settings of
the selected DACs are updated while the mode settings
of the rest of the DACs remain unchanged; DAC(s) are
selected by bits B[11:8]. See Table 9.
REF Command
The REF command updates the global reference setting
used for all DAC channels. Set B[17:16] = 00 to use an
external reference for the DACs or set B[17:16] to 01, 10,
or 11 to select either the 2.5V, 2.048V, or 4.096V internal
reference, respectively.
If RF2 (B18) is set to zero (default) in the REF command,
the reference will be powered down any time all DAC
channels are powered down (in STANDBY mode). If RF2
(B18 = 1) is set to one, the reference will remain powered
even if all DAC channels are powered down, allowing
continued operation of external circuitry. In this mode,
the 1FA shutdown state is not available. See Table 10.
Table 9. CONFIG Command Format
Table 10. REF Command Format
B23 B22 B21 B20 B19 B18 B17 B16 B15 B14 B13 B12 B11 B10 B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
0
1
0
All
0
LDB
X
D
C
B
A
X
CONFIG Command
0=
Select
Individual
DACs
1=
Select
All
DACs
CONFIG
Command
0=
Normal
1=
Transparent
Don’t Care
DAC Select:
1 = DAC Selected
0 = DAC Not
Selected
Don’t Care
Default Values (All DACs)
0
X
1
X
B23 B22 B21 B20 B19 B18 B17 B16 B15 B14 B13 B12 B11 B10 B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
0
1
0
RF2 RF1 RF0
X
REF Command
0=
Off
in
Standby
1=
On
in
Standby
REF Mode:
00 = EXT
01 = 2.5V
10 = 2.0V
11 = 4.0V
Don’t Care
Default Values
0
X
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