MAX1112:+5V、低功耗、多通道、串行8位ADC

功耗最低的8位、4/8通道ADC,内置基准

The MAX1112/MAX1113 low-power, 8-bit, 8-channel analog-to-digital converters (ADCs) feature an internal track/hold, voltage reference, clock, and serial interface. They operate from a single 4.5V to 5.5V supply and consume only 135μA while sampling at rates up to 50ksps. The MAX1112's 8 analog inputs and the MAX1113's 4 analog inputs are software-configurable, allowing unipolar/bipolar and single-ended/differential operation. Successive-approximation conversions are performed using either the internal clock or an external serial-interface clock. The full-scale analog input range is determined by the 4.096V internal reference, or by an externally applied reference ranging from 1V to VDD. The 4-wire serial interface is compatible with the SPI™, QSPI™, and MICROWIRE™ serial-interface standards. A serial-strobe output provides the end-of-conversion signal for interrupt-driven processors. The MAX1112/MAX1113 have a software-programmable, 2µA automatic power-down mode to minimize power consumption. Using power-down, the supply current is reduced to 13µA at 1ksps, and only 82µA at 10ksps. Power-down can also be controlled using the active-low SHDN input pin. Accessing the serial interface automatically powers up the device. The MAX1112 is available in a 20-pin SSOP package. The MAX1113 is available in a small 16-pin QSOP package.

关键特性
  • 4.5V to 5.5V Single Supply
  • Low Power:
    • 135µA at 50ksps
    • 13µA at 1ksps
  • 8-Channel Single-Ended or 4-Channel Differential Inputs (MAX1112)
  • 4-Channel Single-Ended or 2-Channel Differential Inputs (MAX1113)
  • Internal Track/Hold; 50kHz Sampling Rate
  • Internal 4.096V Reference
  • SPI/QSPI/MICROWIRE-Compatible Serial Interface
  • Software-Configurable Unipolar or Bipolar Inputs
  • Total Unadjusted Error:
    • ±1 LSB (max)
    • ±0.3 LSB (typ)
MAX1112、MAX1113:典型工作电路
MAX1112、MAX1113:典型工作电路
应用
  • 4mA至20mA供电远端数据采集系统
  • 电池供电应用
  • 系统诊断
  • 触摸屏应用
数据手册DataSheet
语言下载文件备注
英文MAX1112-MAX1113.pdfRev 2; 05/2011
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
MAX11128850SARSPIBoth4.09615.54.0962.04849-700.1
  • CDIP(N)/20
  • PDIP(N)/20
  • SSOP/20
$2.07 @1k
MAX11134
  • CDIP(N)/16
  • PDIP(N)/16
  • QSOP/16
$2.43 @1k
开发工具
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
  • MAX1108:单电源、低功耗、2通道、串行8位ADC
  • MAX1109:单电源、低功耗、2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
MAX1112C/D停止供货DICE;0°C至+70°C参考数据资料
MAX1112CAP停止供货MAX1112CAP+SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:否
MAX1112CAP+生产中SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:无铅
MAX1112CAP+T生产中SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:无铅
MAX1112CAP-T停止供货MAX1112CAP+TSSOP;20引脚0°C至+70°C参考数据资料
MAX1112CPP停止供货MAX1112CAP+PDIP(N),;20引脚;217.1mm²0°C至+70°CRoHS/无铅:否
MAX1112CPP+停止供货MAX1112CAP+PDIP(N),;20引脚;217.1mm²0°C至+70°CRoHS/无铅:无铅
MAX1112EAP停止供货MAX1112EAP+SSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:否
MAX1112EAP+生产中SSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX1112EAP+T生产中SSOP;20引脚-40°C至+85°C参考数据资料
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX1112EAP-T停止供货MAX1112EAP+TSSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:否
MAX1112EPP停止供货MAX1112EAP+PDIP(N),;20引脚;217.1mm²-40°C至+85°CRoHS/无铅:否
MAX1112EPP+停止供货MAX1112EAP+PDIP(N),;20引脚;217.1mm²-40°C至+85°CRoHS/无铅:无铅
MAX1112MJP停止供货CDIP(N),;20引脚;218.9mm²-55°C至+125°CRoHS/无铅:否
MAX1112-MAX1113.pdf MAX1113
MAX1112-MAX1113.pdf MAX1113