參數(shù)資料
型號(hào)： MAX1221BETX+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 43/44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
8
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = DVDD = 2.7V to 5.25V, external reference VREF = 2.5V, fCLK = 3.6MHz (50% duty cycle), TA = -40°C to +85°C, unless other-
wise noted. Typical values are at AVDD = DVDD = 3V. TA = +25°C. Outputs are unloaded, unless otherwise noted.)
Note 1: Tested at DVDD = AVDD = +2.7V.
Note 2: Offset nulled.
Note 3: No bus activity during conversion. Conversion time is defined as the number of conversion clock cycles, multiplied by the
clock period.
Note 4: See Table 5 for reference-mode details.
Note 5: Not production tested. Guaranteed by design.
Note 6: See the
ADC/DAC References section.
Note 7: Fast automated test, excludes self-heating effects.
Note 8: Specified over the -40°C to +85°C temperature range.
Note 9: REFSEL[1:0] = 00 or when DACs are not powered up.
Note 10: DAC linearity, gain, and offset measurements are made between codes 115 and 3981.
Note 11: The DAC buffers are guaranteed by design to be stable with a 1nF load.
Note 12: Time required by the DAC output to power up and settle within 1 LSB in the external reference mode.
Note 13: All DAC dynamic specifications are valid for a load of 100pF and 10kΩ.
Note 14: Only one digital output (either DOUT,
EOC, or the GPIOs) can be indefinitely shorted to either supply at one time.
Note 15: All digital inputs at either DVDD or DGND. DVDD should not exceed AVDD.
Note 16: See the
Reset Register section and Table 9 for details on programming the SLOW bit.
Note 17: Clock mode 11 only.
Typical Operating Characteristics
(AVDD = DVDD = 3V external VREF = 2.5V, fCLK = 3.6MHz (50% duty cycle), fSAMPLE = 225ksps, CLOAD = 50pF, 0.1F capacitor at
REF, TA = +25°C, unless otherwise noted.)
0
0.1
0.3
0.2
0.4
0.5
2.5
3.5
3.0
4.0
4.5
5.0
5.5
ANALOG SHUTDOWN CURRENT
vs. ANALOG SUPPLY VOLTAGE
MAX1221
toc01
SUPPLY VOLTAGE (V)
ANALOG
SHUTDOWN
CURRENT
(μ
A)
ANALOG SHUTDOWN CURRENT
vs. TEMPERATURE
MAX1221
toc02
TEMPERATURE (
°C)
ANALOG
SHUTDOWN
CURRENT
(μ
A)
60
35
10
-15
0.1
0.2
0.3
0.4
0
-40
85
ADC INTEGRAL NONLINEARITY
vs. OUTPUT CODE
MAX1221
toc03
OUTPUT CODE
INTEGRAL
NONLINEARITY
(LSB)
3072
2048
1024
-0.75
-0.50
-0.25
0
0.25
0.50
0.75
1.00
-1.00
0
4096
AVDD = DVDD = 5V
EXTERNAL REFERENCE = 4.096V
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MAX1221BETX+ 功能描述:ADC / DAC多通道 12-Bit 8Ch 300ksps 5.25V Precision ADC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX1221BETX+T 功能描述:ADC / DAC多通道 12-Bit 8Ch 300ksps 5.25V Precision ADC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX1221BETX-T 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40
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