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参数资料
| 型号： | MAX1270BCAI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 19/20页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT SERIAL 28-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 类型： | 数据采集系统（DAS），ADC |
| 分辨率（位）： | 12 b |
| 采样率（每秒）： | 110k |
| 数据接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 电压电源： | 单电源 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1270BCNG | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1270BCNG+ | 功能描述:模数转换器 - ADC 12-Bit 8Ch 110ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1270BEAI | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1270BEAI+ | 功能描述:模数转换器 - ADC 12-Bit 8Ch 110ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1270BEAI+T | 功能描述:模数转换器 - ADC 12-Bit 8Ch 110ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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