參數(shù)資料
型號: MAX1258BETM+T
廠商: Maxim Integrated Products
文件頁數(shù): 32/43頁
文件大?。?/td> 0K
描述: IC ADC/DAC 12BIT 48-TQFN
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
類型: ADC,DAC
分辨率(位): 12 b
采樣率(每秒): 225k
數(shù)據(jù)接口: 串行
電壓電源: 模擬和數(shù)字
電源電壓: 4.75 V ~ 5.25 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 48-WFQFN 裸露焊盤
供應商設備封裝: 48-TQFN-EP(7x7)
包裝: 帶卷 (TR)
MAX1220/MAX1257/MAX1258
12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
38
______________________________________________________________________________________
tCSH
SCLK
NOTE: FOR THE MAX1220 GPIO WRITES, n = 16; FOR ALL DAC WRITES AND GPIO WRITES ON THE MAX1257/MAX1258, n = 24.
DIN
DOUT
CS
12
3
4
32
16
8
Dn-1
Dn-2
Dn-3
Dn-4
Dn-5
5
D15
D7
D14
D6
D13
D5
D12
D4
D0
D1
D0
tDOD
tDOT
tCSS
tCSPWH
D1
tDOE
tDS
tDH
tCH
tCL
Figure 10. DAC/GPIO Serial-Interface Timing (Clock Modes 00, 01, and 10)
DAC/GPIO Timing
Figures 10–13 detail the timing diagrams for writing to
the DAC and GPIOs. Figure 10 shows the timing speci-
fications for clock modes 00, 01, and 10. Figure 11
shows the timing specifications for clock mode 11.
Figure 12 details the timing specifications for the DAC
input select register and 2 bytes to follow. Output data
is updated on the rising edge of SCLK in clock mode
11. Figure 13 shows the GPIO timing. Figure 14 shows
the timing details of a hardware LDAC command DAC-
register update. For a software-command DAC-register
update, tS is valid from the rising edge of CS, which fol-
lows the last data bit in the software command word.
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