MAX1290:400ksps、+5V、8/4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 MAX1290/MAX1292 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, byte-wide parallel interface. The devices operate with a single +5V analog supply and feature a VLOGIC pin that allows them to interface directly with a +2.7V to +5.5V digital supply. Power consumption is only 10mW (VDD = VLOGIC) at a 400ksps max sampling rate. Two software-selectable power-down modes enable the MAX1290/MAX1292 to be shut down between conversions; accessing the parallel interface returns them to normal operation. Powering down between conversions can cut supply current to under 10µA at reduced sampling rates. Both devices offer software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation. In single-ended mode, the MAX1290 has eight input channels and the MAX1292 has four input channels (four and two input channels, 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 MAX1290/MAX1292 tri-states active-low INT when active-low CS goes high. Refer to MAX1262/MAX1264 if tri-stating active-low INT is not desired. The MAX1290 is available in a 28-pin QSOP package, while the MAX1292 comes in a 24-pin QSOP. For pin-compatible +3V, 12-bit versions, refer to the MAX1291/MAX1293 data sheet.

关键特性
  • 12-Bit Resolution, ±0.5 LSB Linearity
  • +5V Single-Supply Operation
  • User-Adjustable Logic Level (+2.7V to +5.5V)
  • Internal +2.5V Reference
  • Software-Configurable Analog Input Multiplexer
    • 8-Channel Single-Ended/4-Channel Pseudo-Differential (MAX1290)
    • 4-Channel Single-Ended/2-Channel Pseudo-Differential (MAX1292)
  • Software-Configurable Unipolar/Bipolar Analog Inputs
  • Low Current:
    • 2.5mA (400ksps)
    • 1.0mA (100ksps)
    • 400µA (10ksps)
    • 2µA (Shutdown)
  • Internal 6MHz Full-Power Bandwidth Track/Hold
  • Byte-Wide Parallel (8 + 4) Interface
  • Small Footprint:
    • 28-Pin QSOP (MAX1290)
    • 24-Pin QSOP (MAX1292)
MAX1290、MAX1292:典型工作电路
MAX1290、MAX1292:典型工作电路
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MAX1290-MAX1292.pdfRev 3; 03/2003
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
MAX1290128400SARµP/8Both2.515.52.51.25-801QSOP/28$9.61 @1k
MAX12924QSOP/24$8.29 @1k
开发工具
质量和环境数据
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
  • MAX1261:250ksps、+3V、8/4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
  • MAX1262:450ksps、+5V、8/4通道、12位ADC,带有+2.5V电压基准及并行接口
  • MAX115:2x4通道、同时采样、12位ADC
  • 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
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX1290ACEI停止供货MAX1290ACEI+QSOP,;28引脚;61.9mm²0°C至+70°CRoHS/无铅:否
MAX1290ACEI+生产中QSOP,;28引脚;61.9mm²0°C至+70°CRoHS/无铅:无铅
MAX1290ACEI+T生产中QSOP,;28引脚;61.9mm²0°C至+70°CRoHS/无铅:无铅
MAX1290ACEI-T停止供货MAX1290ACEI+TQSOP;28引脚0°C至+70°C参考数据资料
MAX1290AEEI停止供货MAX1290AEEI+QSOP,;28引脚;61.9mm²-40°C至+85°CRoHS/无铅:否
MAX1290AEEI+生产中QSOP,;28引脚;61.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX1290AEEI+T生产中QSOP,;28引脚;61.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX1290AEEI-T停止供货MAX1290AEEI+TQSOP;28引脚-40°C至+85°C参考数据资料
MAX1290BCEI停止供货MAX1290BCEI+QSOP,;28引脚;61.9mm²0°C至+70°CRoHS/无铅:否
MAX1290BCEI+生产中QSOP,;28引脚;61.9mm²0°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?
MAX1290BCEI+T生产中QSOP,;28引脚;61.9mm²0°C至+70°CRoHS/无铅:无铅
MAX1290BCEI-T停止供货MAX1290BCEI+TQSOP;28引脚0°C至+70°C参考数据资料
MAX1290BEEI停止供货MAX1290BEEI+QSOP,;28引脚;61.9mm²-40°C至+85°CRoHS/无铅:否
MAX1290BEEI+生产中QSOP,;28引脚;61.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX1290BEEI+T生产中QSOP,;28引脚;61.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX1290BEEI-T停止供货MAX1290BEEI+TQSOP;28引脚-40°C至+85°C参考数据资料
MAX1290-MAX1292.pdf MAX1292
MAX1290.pdf MAX1290
MAX1290-MAX1292.pdf MAX1292