MAX1202:5V、8通道、串行、12位ADC,3V数字接口

可理想用于12位+5V或±5V模拟、+3V数字供电系统

The MAX1202/MAX1203 are 12-bit data-acquisition systems specifically designed for use in applications with mixed +5V (analog) and +3V (digital) supply voltages. They operate with a single +5V analog supply or dual ±5V analog supplies, and combine an 8-channel multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. A 4-wire serial interface connects directly to SPI/MICROWIRE® devices without external logic, and a serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX1202/MAX1203 use either the internal clock or an external serial-interface clock to perform successive approximation analog-to-digital conversions. The serial interface operates at up to 2MHz. The MAX1202 features an internal 4.096V reference, while the MAX1203 requires an external reference. Both parts have a reference-buffer amplifier that simplifies gain trim. They also have a VL pin that is the power supply for the digital outputs. Output logic levels (3V, 3.3V, or 5V) are determined by the value of the voltage applied to this pin. These devices provide a hard-wired active-low SHDN pin and two software-selectable power-down modes. Accessing the serial interface automatically powers up the devices. A quick turn-on time enables the MAX1202/MAX1203 to be shut down between conversions, allowing the user to optimize supply currents. By customizing power-down between conversions, supply current can drop below 10µA at reduced sampling rates. The MAX1202/MAX1203 are available in 20-pin SSOP and PDIP packages, and are specified for the commercial and extended temperature ranges.

关键特性
  • 8-Channel Single-Ended or 4-Channel Differential Inputs
  • Operates from Single +5V or Dual ±5V Supplies
  • User-Adjustable Output Logic Levels (2.7V to 5.25V)
  • Low Power:
    • 1.5mA (Operating Mode)
    • 2µA (Power-Down Mode)
  • Internal Track/Hold, 133kHz Sampling Rate
  • Internal 4.096V Reference (MAX1202)
  • SPI/MICROWIRE/TMS320-Compatible 4-Wire Serial Interface
  • Software-Configurable Unipolar/Bipolar Inputs
  • 20-Pin PDIP/SSOP
MAX1202、MAX1203:典型工作电路
MAX1202、MAX1203:典型工作电路
应用
  • 5V/3V混合供电系统
  • 电池供电应用
  • 数据采集
  • 高精度过程控制
  • 医疗仪器
数据手册DataSheet
语言下载文件备注
英文MAX1202-MAX1203.pdfRev 3; 10/2014
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
MAX1202128133SARSPIBoth4.0962.554.0962.04870-801
  • CDIP(N)/20
  • PDIP(N)/20
  • SSOP/20
$9.91 @1k
MAX120371
  • CDIP(N)/20
  • PDIP(N)/20
  • SSOP/20
$9.31 @1k
开发工具
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订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX1202ACAP停止供货MAX1202ACAP+SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:否
MAX1202ACAP+生产中SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:无铅
MAX1202ACAP+T生产中SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:无铅
MAX1202ACAP-T停止供货MAX1202ACAP+TSSOP;20引脚0°C至+70°C参考数据资料
MAX1202ACPP停止供货MAX1202ACPP+PDIP(N),;20引脚;217.1mm²0°C至+70°CRoHS/无铅:否
MAX1202ACPP+生产中PDIP(N),;20引脚;217.1mm²0°C至+70°CRoHS/无铅:无铅
MAX1202AEAP停止供货MAX1202AEAP+SSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:否
MAX1202AEAP+生产中SSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX1202AEAP+T生产中SSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX1202AEAP-T停止供货MAX1202AEAP+TSSOP;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?
MAX1202AEPP停止供货MAX1202AEPP+PDIP(N),;20引脚;217.1mm²-40°C至+85°CRoHS/无铅:否
MAX1202AEPP+生产中PDIP(N),;20引脚;217.1mm²-40°C至+85°CRoHS/无铅:无铅
MAX1202BC/D停止供货DICE SALES,;NA引脚;DICE;0°C至+70°C参考数据资料
MAX1202BCAP停止供货MAX1202BCAP+SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:否
MAX1202BCAP+生产中SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:无铅
MAX1202BCAP+T生产中SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:无铅
MAX1202BCAP-T停止供货MAX1202BCAP+TSSOP;20引脚0°C至+70°C参考数据资料
MAX1202BCPP停止供货MAX1202BCPP+PDIP(N),;20引脚;217.1mm²0°C至+70°CRoHS/无铅:否
MAX1202BCPP+生产中PDIP(N),;20引脚;217.1mm²0°C至+70°CRoHS/无铅:无铅
MAX1202BEAP停止供货MAX1202BEAP+SSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:否
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?
MAX1202BEAP+生产中SSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX1202BEAP+T生产中SSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX1202BEAP-T停止供货MAX1202BEAP+TSSOP;20引脚-40°C至+85°C参考数据资料
MAX1202BEPP停止供货MAX1202BEPP+PDIP(N),;20引脚;217.1mm²-40°C至+85°CRoHS/无铅:否
MAX1202BEPP+生产中PDIP(N),;20引脚;217.1mm²-40°C至+85°CRoHS/无铅:无铅
MAX1202BMJP停止供货CDIP(N),;20引脚;218.9mm²-55°C至+125°CRoHS/无铅:否
MAX1202EVL11-DIP停止供货参考数据资料
MAX1202-MAX1203.pdf MAX1203
MAX1202-MAX1203.pdf MAX1203