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參數(shù)資料
| 型號(hào)： | MAX1271ACAI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 19/20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： | 0°C ~ 70°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 |
MAX1270/MAX1271
Multirange, +5V, 8-Channel,
Serial 12-Bit ADCs
8
_______________________________________________________________________________________
Pin Description
PIN
PDIP
SSOP
NAME
FUNCTION
11
VDD
+5V Supply. Bypass with a 0.1F capacitor to AGND.
2, 4
2, 3
DGND
Digital Ground
3, 9,
22, 24
4, 7, 8,
11, 22,
24, 25, 28
N.C.
No Connection. No internal connection.
55
SCLK
Serial Clock Input. Clocks data in and out of serial interface. In external clock mode, SCLK also
sets the conversion speed.
66
CS
Active-Low Chip-Select Input. Data is not clocked into DIN unless CS is low. When CS is high,
DOUT is high impedance.
79
DIN
Serial Data Input. Data is clocked in on the rising edge of SCLK.
810
SSTRB
Serial Strobe Output. In internal clock mode, SSTRB goes low after the falling edge of the eighth
SCLK and returns high when the conversion is done. In external clock mode, SSTRB pulses high
for one clock period before the MSB decision. High impedance when CS is high in external
clock mode.
10
12
DOUT
Serial Data Output. Data is clocked out on the falling edge of SCLK. High impedance when CS is
high.
11
13
SHDN
Shutdown Input. When low, device is in FULLPD mode. Connect high for normal operation.
12
14
AGND
Analog Ground
13–20
15–21, 23
CH0–CH7
Analog Input Channels
21
26
REFADJ
Bandgap Voltage-Reference Output/External Adjust Pin. Bypass with a 0.01F capacitor to AGND.
Connect to VDD when using an external reference at REF.
23
27
REF
Reference-Buffer Output/ADC Reference Input. In internal reference mode, the reference buffer
provides a 4.096V nominal output, externally adjustable to REFADJ. In external reference mode,
disable the internal reference by pulling REFADJ to VDD and applying the external reference to REF.
0
1
2
3
4
5
6
7
8
0.1
1
10
100
1000
AVERAGE SUPPLY CURRENT vs.
CONVERSION RATE (USING STANDBY)
MAX1270-toc10
CONVERSION RATE (ksps)
AVERAGE
SUPPLY
CURRENT
(mA)
VDD = 5V, INTERNAL REFERENCE,
fCLK = 2MHz
EXTERNAL CLOCK MODE.
LOW-RANGE UNIPOLAR MODE.
VCH_ = 0
0
1
2
3
4
5
6
7
8
0.1
1
10
100
1000
AVERAGE SUPPLY CURRENT vs.
CONVERSION RATE (USING FULLPD)
MAX1270-toc11
CONVERSION RATE (ksps)
AVERAGE
SUPPLY
CURRENT
(mA)
VDD = 5V, INTERNAL REFERENCE,
fCLK = 2MHz
EXTERNAL CLOCK MODE.
LOW-RANGE UNIPOLAR MODE.
VCH_ = 0
Typical Operating Characteristics (continued)
(Typical Operating Circuit, VDD = +5V; external reference mode, VREF = +4.096V; 4.7F at REF; external clock, fCLK = 2MHz;
110ksps; TA = +25°C, unless otherwise noted.)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1271ACAI+ | 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 |
| MAX1271ACAI+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 |
| MAX1271ACAI-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 |
| MAX1271ACNG | 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 |
| MAX1271ACNG+ | 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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