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參數(shù)資料
| 型號： | MAX1271BEAI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 6/20頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 8CH 28-SSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 46 |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS），ADC |
| 分辨率（位）： | 12 b |
| 采樣率（每秒）： | 110k |
| 數(shù)據(jù)接口： | 串行 |
| 電壓電源： | 單電源 |
| 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： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SSOP |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1396 (CN2011-ZH PDF) |
MAX1270/MAX1271
Multirange, +5V, 8-Channel,
Serial 12-Bit ADCs
14
______________________________________________________________________________________
conversion in progress. Figure 10 shows the SSTRB
timing in internal clock mode.
Internal clock mode conversions can be completed
with 13 external clocks per conversion but require a
waiting period of 15s for the conversion to be com-
pleted (Figure 11).
Most microcontrollers require that conversions occur in
multiples of 8 SCLK clock cycles. Sixteen clock cycles
per conversion (as shown in Figure 12) is typically the
most convenient way for a microcontroller to drive the
MAX1270/MAX1271.
Applications Information
Power-On Reset
The MAX1270/MAX1271 power up in normal operation
(all internal circuitry active) and internal clock mode,
waiting for a start bit. The contents of the output data
register are cleared at power-up.
Internal or External Reference
The MAX1270/MAX1271 operate with either an internal
or external reference. An external reference is connect-
ed to either REF or REFADJ (Figure 13). The REFADJ
internal buffer gain is trimmed to 1.638V to provide
4.096V at REF from a 2.5V reference.
SSTRB
CS
SCLK
DIN
DOUT
1
8
20
START SEL2 SEL1 SEL0 RNG
BIP
PD1
PD0
D11 D10
D1
D0
ACQUISITION
FILLED WITH ZEROS
CONVERSION
A/D STATE
910
19
16 INT CLK
12 INT CLK
MSB
LSB
MSB
LSB
2 EXT SCLK
+4 INT CLK
HIGH-Z
Figure 9. Internal Clock Mode—20 SCLK/Conversion Timing
SCLK #8
tSSTRB
tCSH
tSCK
tCSS
NOTE: FOR BEST NOISE PERFORMANCE, KEEP SCLK LOW DURING CONVERSION.
SSTRB
SCLK
CS
Figure 10. Internal Clock Mode—SSTRB Detailed Timing
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1271BEAI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 110ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1271BEAI+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 110ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1271BEAI-T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1271BENG | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1271BENG+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 110ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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