MAX1297:265ksps、+3V、6/2通道、12位ADC,带有+2.5V电压基准及并行接口

尺寸最小的低功耗、并行输出、12位ADC

The MAX1295/MAX1297 low-power, 12-bit analog-to-digital converters (ADCs) feature a successive-approximation ADC, automatic power-down, fast wake-up (2µs), an on-chip clock, +2.5V internal reference, and a high-speed 12-bit parallel interface. They operate with a single +2.7V to +3.6V analog supply. Power consumption is only 5.4mW at the maximum sampling rate of 265ksps. Two software-selectable power-down modes enable the MAX1295/MAX1297 to be shut down between conversions; accessing the parallel interface returns them to normal operation. Powering down between conversions can reduce supply current below 10µA at lower sampling rates. Both devices offer software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation. In single-ended mode, the MAX1295 has six input channels and the MAX1297 has two (three input channels and one input channel, respectively, when in pseudo-differential mode). 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. The MAX1295/MAX1297 tri-states active-low INT when active-low CS goes high. Refer to MAX1265/MAX1267 if tri-stating active-low INT is not desired. The MAX1295 is offered in a 28-pin QSOP package, while the MAX1297 comes in a 24-pin QSOP. For pin-compatible +5V, 12-bit versions, refer to the MAX1294/MAX1296 data sheet.

关键特性
  • 12-Bit Resolution, ±0.5 LSB Linearity
  • +3V Single-Supply Operation
  • Internal +2.5V Reference
  • Software-Configurable Analog Input Multiplexer
    • 6-Channel Single-Ended/3-Channel Pseudo-Differential (MAX1295)
    • 2-Channel Single-Ended/1-Channel Pseudo-Differential (MAX1297)
  • Software-Configurable Unipolar/Bipolar Analog Inputs
  • Low Current
    • 1.9mA (265ksps)
    • 1.0mA (100ksps)
    • 400µA (10ksps)
    • 2µA (Shutdown)
  • Internal 3MHz Full-Power Bandwidth Track/Hold
  • Parallel 12-Bit Interface
  • Small Footprint
    • 28-Pin QSOP (MAX1295)
    • 24-Pin QSOP (MAX1297)
应用
  • 数据采集系统
  • 数据记录
  • 能量管理
  • 工业控制系统
  • 病人监护
  • 触摸屏
数据手册DataSheet
语言下载文件备注
英文MAX1295-MAX1297.pdfRev 3; 04/2003
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)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalminmaxmaxmaxSee Notes
MAX1295126265SARµP/12Both2.513.62.51.25-781QSOP/28$8.86 @1k
MAX12972QSOP/24$8.89 @1k
相关产品
  • MAX1267:265ksps、+3V、6/2通道、12位ADC,带有+2.5V电压基准及并行接口
  • MAX1268:420ksps、+5V、6/2通道、12位ADC,带有+2.5V电压基准及并行接口
  • MAX1264:450ksps、+5V、8/4通道、12位ADC,带有+2.5V电压基准及并行接口
  • MAX1293:250ksps、+3V、8/4通道、12位ADC,带有+2.5V电压基准及并行接口
  • MAX1291:250ksps、+3V、8/4通道、12位ADC,带有+2.5V电压基准及并行接口
  • MAX1296:420ksps、+5V、6/2通道、12位ADC,带有+2.5V电压基准及并行接口
  • MAX1294:420ksps、+5V、6/2通道、12位ADC,带有+2.5V电压基准及并行接口
  • MAX1292:400ksps、+5V、8/4通道、12位ADC,带有+2.5V电压基准及并行接口
  • MAX196:6通道、多量程、5V、12位DAS,带有12位总线接口和故障保护
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX1297ACEG停止供货MAX1297ACEG+QSOP,;24引脚;54.2mm²0°C至+70°CRoHS/无铅:否
MAX1297ACEG+生产中QSOP,;24引脚;54.2mm²0°C至+70°CRoHS/无铅:无铅
MAX1297ACEG+T生产中QSOP,;24引脚;54.2mm²0°C至+70°CRoHS/无铅:无铅
MAX1297ACEG-T停止供货MAX1297ACEG+TQSOP;24引脚0°C至+70°C参考数据资料
MAX1297AEEG停止供货MAX1297AEEG+QSOP,;24引脚;54.2mm²-40°C至+85°CRoHS/无铅:否
MAX1297AEEG+生产中QSOP,;24引脚;54.2mm²-40°C至+85°CRoHS/无铅:无铅
MAX1297AEEG+T生产中QSOP,;24引脚;54.2mm²-40°C至+85°CRoHS/无铅:无铅
MAX1297AEEG-T停止供货MAX1297AEEG+TQSOP;24引脚-40°C至+85°C参考数据资料
MAX1297BCEG停止供货MAX1297BCEG+QSOP,;24引脚;54.2mm²0°C至+70°CRoHS/无铅:否
MAX1297BCEG+生产中QSOP,;24引脚;54.2mm²0°C至+70°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?
MAX1297BCEG+T生产中QSOP;24引脚0°C至+70°C参考数据资料
MAX1297BCEG-T停止供货MAX1297BCEG+TQSOP,;24引脚;54.2mm²0°C至+70°CRoHS/无铅:否
MAX1297BEEG停止供货MAX1297BEEG+QSOP,;24引脚;54.2mm²-40°C至+85°CRoHS/无铅:否
MAX1297BEEG+生产中QSOP,;24引脚;54.2mm²-40°C至+85°CRoHS/无铅:无铅
MAX1297BEEG+T生产中QSOP,;24引脚;54.2mm²-40°C至+85°CRoHS/无铅:无铅
MAX1297BEEG-T停止供货MAX1297BEEG+TQSOP;24引脚-40°C至+85°C参考数据资料
MAX1295-MAX1297.pdf MAX1297