数据手册MAX1280, MAX1280B, MAX1281, MAX1281B .pdf [英文Rev.2(PDF,452kB)]

{状况:生产中。}

The MAX1280/MAX1281 12-bit ADCs combine an 8-channel analog-input multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. The MAX1280 operates from a single +4.5V to +5.5V supply; the MAX1281 operates from a single +2.7V to +3.6V supply. Both devices' analog inputs are software configurable for unipolar/bipolar and single-ended/pseudo-differential operation. The 4-wire serial interface connects directly to SPI™/QSPI™/MICROWIRE™ devices without external logic. A serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX1280/MAX1281 use an external serial-interface clock to perform successive-approximation analog-to-digital conversions. Both parts feature an internal +2.5V reference and a reference-buffer amplifier with a ±1.5% voltage-adjustment range. An external reference with a 1V to VDD1 range may also be used. The MAX1280/MAX1281 provide a hard-wired active-low SHDN pin and four software-selectable power modes (normal operation, reduced power, fast power-down, and full power-down). These devices can be programmed to automatically shut down at the end of a conversion or to operate with reduced power. When using the power-down modes, accessing the serial interface automatically powers up the devices, and the quick turn-on time allows them to be powered down between all conversions. This technique can cut supply current to under 100µA at reduced sampling rates. The MAX1280/MAX1281 are available in 20-pin TSSOP packages. These devices are higher-speed versions of the MAX146/MAX147 (for more information, see the respective data sheet).

产品关键特性
  • 8-Channel Single-Ended or 4-Channel Pseudo-Differential Inputs
  • Internal Multiplexer and Track/Hold
  • Single-Supply Operation
    • +4.5V to +5.5V (MAX1280)
    • +2.7V to +3.6V (MAX1281)
  • Internal +2.5V Reference
  • 400ksps Sampling Rate (MAX1280)
  • Low Power 2.5mA (400ksps)
    • 1.3mA (Reduced-Power Mode)
    • 0.9mA (Fast Power-Down Mode)
    • 2µA (Full Power-Down)
  • SPI/QSPI/MICROWIRE/TMS320-Compatible
    • 4-Wire Serial Interface
  • Software-Configurable Unipolar or Bipolar Inputs
  • 20-Pin TSSOP Package
应用与使用范围
  • 电池供电应用
  • 数据采集
  • 医疗仪器
  • 笔输入量化器
  • 便携式数据记录
  • 过程控制
典型工作电路

芯片订购型号
订购型号产品状态封装形式工作温度RoHS/无铅
MAX1280BCUP生产中TSSOP;20引脚;45.2mm²封装信息0°C至+70°CRoHS/无铅:否材料分析
MAX1280BCUP+生产中TSSOP;20引脚;45.2mm²封装信息0°C至+70°CRoHS/无铅:无铅材料分析
MAX1280BCUP+T生产中TSSOP;20引脚;45.2mm²封装信息0°C至+70°CRoHS/无铅:无铅材料分析
MAX1280BCUP-T生产中TSSOP;20引脚;45.2mm²封装信息0°C至+70°CRoHS/无铅:否材料分析
MAX1280BEUP生产中TSSOP;20引脚;45.2mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
MAX1280BEUP+生产中TSSOP;20引脚;45.2mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1280BEUP+T生产中TSSOP;20引脚;45.2mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1280BEUP-T生产中TSSOP;20引脚封装信息-40°C至+85°C参考数据资料
MAX1281BCUP生产中TSSOP;20引脚;45.2mm²封装信息0°C至+70°CRoHS/无铅:否材料分析
MAX1281BCUP+生产中TSSOP;20引脚;45.2mm²封装信息0°C至+70°CRoHS/无铅:无铅材料分析
MAX1281BCUP+T生产中TSSOP;20引脚封装信息0°C至+70°C参考数据资料
MAX1281BCUP-T生产中TSSOP;20引脚;45.2mm²封装信息0°C至+70°CRoHS/无铅:否材料分析
MAX1281BEUP生产中TSSOP;20引脚;45.2mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
MAX1281BEUP+生产中TSSOP;20引脚;45.2mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1281BEUP+T生产中TSSOP;20引脚;45.2mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX1281BEUP-T生产中TSSOP;20引脚封装信息-40°C至+85°C参考数据资料
功能接近器件
MAX1080300ksps/400ksps、单电源、低功耗、8通道、串行10位ADC,内置电压基准
MAX1080A300ksps/400ksps、单电源、低功耗、8通道、串行10位ADC,内置电压基准
MAX1080B300ksps/400ksps、单电源、低功耗、8通道、串行10位ADC,内置电压基准
MAX1082300ksps/400ksps、单电源、4通道、串行10位ADC,内置电压基准
MAX1082A300ksps/400ksps、单电源、4通道、串行10位ADC,内置电压基准
MAX1082B300ksps/400ksps、单电源、4通道、串行10位ADC,内置电压基准
MAX1084400ksps/300ksps、单电源、低功耗、串行10位ADC,内置电压基准
MAX1084A400ksps/300ksps、单电源、低功耗、串行10位ADC,内置电压基准
MAX1084B400ksps/300ksps、单电源、低功耗、串行10位ADC,内置电压基准
MAX1282300ksps/400ksps、单电源、4通道、串行12位ADC,内置电压基准
MAX1283300ksps/400ksps、单电源、4通道、串行12位ADC,内置电压基准
MAX1284400ksps/300ksps、单电源、低功耗、串行12位ADC,内置电压基准
MAX1285400ksps/300ksps、单电源、低功耗、串行12位ADC,内置电压基准
MAX1285B400ksps/300ksps、单电源、低功耗、串行12位ADC,内置电压基准
MAX1163412位、300ksps ADC,带有差分采样/保持和内部基准
MAX1163512位、300ksps ADC,带有差分采样/保持和内部基准
MAX1163612位、300ksps ADC,带有差分采样/保持和内部基准
MAX146+2.7V、低功耗、8通道、串行12位ADC
MAX147+2.7V、低功耗、8通道、串行12位ADC
MAX1162612位、300ksps ADC,带有FIFO和内部电压基准
MAX1162712位、300ksps ADC,带有FIFO和内部电压基准
MAX1162812位、300ksps ADC,带有FIFO和内部电压基准
评估板与开发套件
MAX1280EVC16MAX1280评估板/评估系统
MAX1280EVKITMAX1280评估板/评估系统
相关芯片型号
MAX1280EVC16MAX1280评估板/评估系统
MAX1280EVKITMAX1280评估板/评估系统
MAX1280-MAX1281B.pdf MAX1281B