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MAX1118：单电源、低功耗、2通道、串行8位ADC

业内功耗最低的SOT23 ADC

The MAX1117/MAX1118/MAX1119 low-power, 8-bit, dual-channel, analog-to-digital converters (ADCs) feature an internal track/hold (T/H) voltage reference (MAX1117/MAX1119), clock, and serial interface. The MAX1118 is specified from +2.7V to +5.5V and consumes only 135µA at 100ksps. The MAX1117 is specified from +2.7V to +3.6V, and the MAX1119 is specified from +4.5V to +5.5V, each consumes only 175µA at 100ksps. The full-scale analog input range is determined by the internal reference of +2.048V (MAX1117) or +4.096V (MAX1119), or by an externally applied reference ranging from +1V to VDD (MAX1118). All devices feature an automatic shutdown mode that reduces supply current to < 1µA when the device is not in use. The 3-wire serial interface directly connects to SPI™, QSPI™, and MICROWIRE™ devices without external logic. Conversions up to 100ksps are performed using an internal clock. The MAX1117/MAX1118/MAX1119 are available in an 8-pin SOT23 package with a footprint that is only 11% of an 8-pin plastic DIP.

关键特性 Single Supply +2.7V to +3.6V (MAX1117) +2.7V to +5.5V (MAX1118) +4.5V to +5.5V (MAX1119) Internal Track/Hold: 100kHz Sampling Rate Internal Reference +2.048V (MAX1117) +4.096V (MAX1119) Reference Input Range: 0 to VDD (MAX1118) SPI/QSPI/MICROWIRE-Compatible Serial Interface Small 8-Pin SOT23 Package Automatic Power-Down Analog Input Range: 0 to VREF Low Power 175µA at 100ksps (typ) (MAX1117/MAX1119) 135µA at 100ksps (typ) (MAX1118) 18µA at 10ksps (typ) 1µA (typ) in Power-Down Mode

MAX1117、MAX1118、MAX1119：典型工作电路 应用 4mA至20mA供电远端数据采集系统 电池供电测试设备 低功耗、手持式便携设备 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

关键参数

开发工具

• MAX1117EVSYS

技术资料

• Bench Characterization of ADCs Using a Low-Cost PC-Based Data-Acquisition Board

相关产品

• MAX1394：1.5V至3.6V、416ksps、单通道真差分/双通道单端、8位SAR ADC
• MAX1117：单电源、低功耗、2通道、串行8位ADC
• MAX1115：单电源、低功耗、串行8位ADC
• MAX1116：单电源、低功耗、串行8位ADC

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