參數(shù)資料
型號: AD9735BBCZ
廠商: Analog Devices Inc
文件頁數(shù): 44/72頁
文件大小: 0K
描述: IC DAC 12BIT 1.2GSPS 160-CSPBGA
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
標準包裝: 1
位數(shù): 12
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 模擬和數(shù)字
功率耗散(最大): 550mW
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 160-LFBGA,CSPBGA
供應(yīng)商設(shè)備封裝: 160-CSPBGA(12x12)
包裝: 托盤
輸出數(shù)目和類型: 2 電流,單極
采樣率(每秒): 1.2G
AD9734/AD9735/AD9736
Rev. A | Page 49 of 72
The full-scale output current range is approximately 10 mA to
30 mA for register values from 0x000 to 0x3FF. The default
value of 0x200 generates 20 mA full scale. The typical range is
shown in Figure 89.
35
30
25
20
I FS
(mA)
15
10
5
0
200
400
600
800
DAC GAIN CODE
1000
04862-087
Figure 89. IFS vs. DAC Gain Code
Always connect a 10 kΩ resistor from the I120 pin to ground
and use the digital controls to vary the full-scale current. The
AD973x is not a multiplying DAC. Applying an analog signal to
I120 is not supported.
VREF (Pin C14) must be bypassed to ground with a 1 nF
capacitor. The band gap voltage is present on this pin and can
be buffered for use in external circuitry. The typical output
impedance is near 5 kΩ. If desired, an external reference can be
used to overdrive the internal reference by connecting it to the
VREF pin.
IPTAT (Pin D14) is used for factory testing. Leave this pin
floating.
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