MAX1109:单电源、低功耗、2通道、串行8位ADC

功耗最低的8位、串行接口、双通道ADC,内置基准

The MAX1108/MAX1109 low-power, 8-bit, dual-channel, analog-to-digital converters (ADCs) feature an internal track/hold (T/H) voltage reference, clock, and serial interface. The MAX1108 is specified from +2.7V to +3.6V and consumes only 105µA. The MAX1109 is specified from +4.5V to +5.5V and consumes only 130µA. The analog inputs are software configurable, allowing unipolar/bipolar and single-ended/differential operation; battery monitoring capability is also included. The full-scale analog input range is determined by the internal reference of +2.048V (MAX1108) or +4.096V (MAX1109), or by an externally applied reference ranging from 1V to VDD. The MAX1108/MAX1109 also feature a software power-down mode that reduces power consumption to 0.5µA when the device is not in use. The 4-wire serial interface directly connects to SPI™, QSPI™, and MICROWIRE™ devices without external logic. Conversions up to 50ksps are performed using either the internal clock or an external serial-interface clock. The MAX1108 and MAX1109 are available in a 10-pin µMAX package with a footprint that is just 20% of an 8-pin plastic DIP.

关键特性
  • Single Supply:
    • +2.7V to +3.6V (MAX1108)
    • +4.5V to +5.5V (MAX1109)
  • Low Power:
    • 105µA at +3V and 50ksps
    • 0.5µA in Power-Down Mode
  • Software-Configurable Unipolar or Bipolar Inputs
  • Input Voltage Range: 0 to VDD
  • Internal Track/Hold
  • Internal Reference:
    • +2.048V (MAX1108)
    • +4.096V (MAX1109)
  • Reference Input Range: 1V to VDD
  • SPI/QSPI/MICROWIRE-Compatible Serial Interface
  • VDD Monitoring Mode
  • Small 10-Pin µMAX Package
MAX1108、MAX1109典型工作电路
MAX1108、MAX1109典型工作电路
应用
  • 4mA至20mA供电远端系统
  • 手持式测量设备
  • 医疗仪器
  • 便携式数据记录
  • 接收信号强度指示
  • 太阳能供电远端系统
  • 系统诊断
数据手册DataSheet
语言下载文件备注
英文MAX1108-MAX1109.pdfRev 1; 06/2003
关键参数
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
Bipolar VIN
(±V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalminmaxmaxmaxSee Notes
MAX11088250SARSPIBoth2.04815.52.0481.02449-700.2µMAX/10$2.24 @1k
MAX11094.0964.0962.0480.15µMAX/10$2.36 @1k
相关产品
  • MAX1103:8位编解码器
  • MAX1106:单电源、低功耗、串行8位ADC
  • MAX1107:单电源、低功耗、串行8位ADC
  • MAX1112:+5V、低功耗、多通道、串行8位ADC
  • MAX1113:+5V、低功耗、多通道、串行8位ADC
  • MAX1111:+2.7V、低功耗、多通道、串行8位ADC
  • MAX1110:+2.7V、低功耗、多通道、串行8位ADC
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX1109CUB停止供货MAX1109CUB+µMAX,;10引脚;15.4mm²0°C至+70°CRoHS/无铅:否
MAX1109CUB+生产中µMAX,;10引脚;15.4mm²0°C至+70°CRoHS/无铅:无铅
MAX1109CUB+T生产中µMAX,;10引脚;15.4mm²0°C至+70°CRoHS/无铅:无铅
MAX1109CUB-T停止供货MAX1109CUB+TµMAX,;10引脚;15.4mm²0°C至+70°CRoHS/无铅:否
MAX1109EUB停止供货MAX1109EUB+µMAX,;10引脚;15.4mm²-40°C至+85°CRoHS/无铅:否
MAX1109EUB+生产中µMAX,;10引脚;15.4mm²-40°C至+85°CRoHS/无铅:无铅
MAX1109EUB+T生产中µMAX,;10引脚;15.4mm²-40°C至+85°CRoHS/无铅:无铅
MAX1109EUB-T停止供货MAX1109EUB+TµMAX,;10引脚;15.4mm²-40°C至+85°CRoHS/无铅:否
MAX1108-MAX1109.pdf MAX1109
典型工作电路 MAX1109