MAX145:+2.7V、低功耗、2通道、108ksps、串行12位ADC,8引脚µMAX封装

The MAX144/MAX145 low-power, 12-bit analog-to-digital converters (ADCs) are available in 8-pin µMAX® and DIP packages. Both devices operate with a single +2.7V to +5.25V supply and feature a 7.4µs successive- approximation ADC, automatic power-down, fast wake-up (2.5µs), an on-chip clock, and a high-speed, 3-wire serial interface. Power consumption is only 3.2mW (VDD = +3.6V) at the maximum sampling rate of 108ksps. At slower throughput rates, the automatic shutdown (0.2µA) further reduces power consumption. The MAX144 provides 2-channel, single-ended operation and accepts input signals from 0 to VREF. The MAX145 accepts pseudo-differential inputs ranging from 0 to VREF. An external clock accesses data-through the 3-wire serial interface, which is SPI™, QSPI™, and MICROWIRE™-compatible. Excellent dynamic performance and low power, combined with ease of use and small package size, make these converters ideal for battery-powered and data-acquisition applications, or for other circuits with demanding power-consumption and space requirements. For pin-compatible 10-bit ADCs, see the MAX157 and MAX159 data sheets.

关键特性
  • Single-Supply Operation (+2.7V to +5.25V)
  • Two Single-Ended Channels (MAX144) One Pseudo-Differential Channel (MAX145)
  • Low Power
    • 0.9mA (108ksps, +3V Supply)
    • 100µA (10ksps, +3V Supply)
    • 10µA (1ksps, +3V Supply)
    • 0.2µA (Power-Down Mode)
  • Internal Track/Hold
  • 108ksps Sampling Rate
  • SPI/QSPI/MICROWIRE-Compatible 3-Wire Serial Interface
  • Space-Saving 8-Pin µMAX Package
  • Pin-Compatible 10-Bit Versions Available
MAX144、MAX145:引脚配置
MAX144、MAX145:引脚配置
应用
  • 电池供电应用
  • 仪表
  • 隔离型数据采集
  • 医疗仪器
  • 便携式数据记录
  • 过程控制监视
  • 系统监控
  • 测试设备
数据手册DataSheet
语言下载文件备注
英文MAX144-MAX145.pdfRev 2; 12/2005
关键参数
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputExternal VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxminmaxmaxSee Notes
MAX144122108SARSPIS.E. Only05.255.25-801
  • µMAX/8
  • PDIP(N)/8
$7.39 @1k
MAX1451
  • µMAX/8
  • PDIP(N)/8
$5.83 @1k
质量和环境数据
相关产品
  • MAX1329:12/16位DAS,具有ADC、DAC、DPIO、APIO、基准、电压监测器和温度传感器
  • MAX1393:1.5V至3.6V、312.5ksps、单通道真差分/双通道单端、12位SAR ADC
  • MAX1288:150ksps、12位、双通道单端及单通道真差分ADC
  • MAX1284:400ksps/300ksps、单电源、低功耗、串行12位ADC,内置电压基准
  • MAX157:+2.7V、低功耗、2通道、108ksps、串行10位ADC,8引脚µMAX封装
  • MAX159:+2.7V、低功耗、2通道、108ksps、串行10位ADC,8引脚µMAX封装
  • MAX1330:12/16位DAS,具有ADC、DAC、DPIO、APIO、基准、电压监测器和温度传感器
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX145ACPA停止供货MAX145ACPA+PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:否
MAX145ACPA+生产中PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:无铅
MAX145ACUA停止供货MAX145ACUA+µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:否
MAX145ACUA+生产中µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:无铅
MAX145ACUA+T生产中µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:无铅
MAX145ACUA-T停止供货MAX145ACUA+TµMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:否
MAX145AEPA停止供货MAX145AEPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
MAX145AEPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
MAX145AEUA停止供货MAX145AEUA+µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
MAX145AEUA+生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
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?
MAX145AEUA+T生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
MAX145AEUA-T停止供货MAX145AEUA+TµMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
MAX145BCPA停止供货MAX145BCPA+PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:否
MAX145BCPA+生产中PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:无铅
MAX145BCUA停止供货MAX145BCUA+µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:否
MAX145BCUA+生产中µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:无铅
MAX145BCUA+T生产中uMAX;8引脚0°C至+70°C参考数据资料
MAX145BCUA-T停止供货MAX145BCUA+TuMAX;8引脚0°C至+70°C参考数据资料
MAX145BEPA停止供货MAX145BEPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
MAX145BEPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
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?
MAX145BEUA停止供货MAX145BEUA+µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
MAX145BEUA+生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
MAX145BEUA+T生产中uMAX;8引脚-40°C至+85°C参考数据资料
MAX145BEUA-T停止供货MAX145BEUA+TuMAX;8引脚-40°C至+85°C参考数据资料
MAX144-MAX145.pdf MAX145
MAX145.pdf MAX145
MAX144-MAX145.pdf MAX145