參數(shù)資料
型號(hào)： MAX1221BETX+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 20/44頁(yè)
文件大?。?/td> 0K
描述： IC ADC/DAC 12BIT W/FIFO 36TQFNEP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 50
類型： ADC，DAC
分辨率（位）： 12 b
采樣率（每秒）： 225k
數(shù)據(jù)接口： MICROWIRE?，QSPI?，串行，SPI?
電壓電源： 模擬和數(shù)字
電源電壓： 2.7 V ~ 5.25 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 36-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 36-TQFN 裸露焊盤（6x6）
包裝： 管件
MAX1221/MAX1223/MAX1343
12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
______________________________________________________________________________________
27
Table 6. Unipolar-Mode Register (Addressed Through the Setup Register)
BIT NAME
BIT
FUNCTION
UCH0/1
7 (MSB)
Configure AIN0 and AIN1 for unipolar differential conversion.
UCH2/3
6
Configure AIN2 and AIN3 for unipolar differential conversion.
UCH4/5
5
Configure AIN4 and AIN5 for unipolar differential conversion.
UCH6/7
4
Configure AIN6 and AIN7 for unipolar differential conversion.
UCH8/9
3
Configure AIN8 and AIN9 for unipolar differential conversion (MAX1223). Set UCH8/9 to zero on the
MAX1221/MAX1343.
UCH10/11
2
Configure AIN10 and AIN11 for unipolar differential conversion (MAX1223). Set UCH8/9 to zero on
the MAX1221/MAX1343.
X
1
Don’t care.
X
0 (LSB)
Don’t care.
Table 7. Bipolar-Mode Register (Addressed Through the Setup Register)
BIT NAME
BIT
FUNCTION
BCH0/1
7 (MSB)
Set to one to configure AIN0 and AIN1 for bipolar differential conversion. Set the corresponding bits
in the unipolar-mode and bipolar-mode registers to zero to configure AIN0 and AIN1 for unipolar
single-ended conversion.
BCH2/3
6
Set to one to configure AIN2 and AIN3 for bipolar differential conversion. Set the corresponding bits
in the unipolar-mode and bipolar-mode registers to zero to configure AIN2 and AIN3 for unipolar
single-ended conversion.
BCH4/5
5
Set to one to configure AIN4 and AIN5 for bipolar differential conversion. Set the corresponding bits
in the unipolar-mode and bipolar-mode registers to zero to configure AIN4 and AIN5 for unipolar
single-ended conversion.
BCH6/7
4
Set to one to configure AIN6 and AIN7 for bipolar differential conversion. Set the corresponding bits
in the unipolar-mode and bipolar-mode registers to zero to configure AIN6 and AIN7 for unipolar
single-ended conversion.
BCH8/9
3
Set to one to configure AIN8 and AIN9 for bipolar differential conversion (MAX1223). Set the
corresponding bits in the unipolar-mode and bipolar-mode registers to zero to configure AIN8 and
AIN9 for unipolar single-ended conversion. Set BCH8/9 to zero on the MAX1221 and MAX1343.
BCH10/11
2
Set to one to configure AIN10 and AIN11 for bipolar differential conversion (MAX1223). Set the
corresponding bits in the unipolar-mode and bipolar-mode registers to zero to configure AIN10 and
AIN11 for unipolar single-ended conversion. Set BCH8/9 to zero on the MAX1221 and MAX1343.
X
1
Don’t care.
X
0 (LSB)
Don’t care.
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