MAX1240

+2.7V、低功耗、12位串行ADC,8引脚SO封装


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说明

The MAX1240/MAX1241 low-power, 12-bit analog-to-digital converters (ADCs) are available in 8-pin packages. The MAX1240 operates with a single +2.7V to +3.6V supply, and the MAX1241 operates with a single +2.7V to +5.25V supply. Both devices feature a 7.5µs successive-approximation ADC, a fast track/hold (1.5µs), an on-chip clock, and a high-speed, 3-wire serial interface.

Power consumption is only 37mW (VDD = 3V) at the 73ksps maximum sampling speed. A 2µA shutdown mode reduces power at slower throughput rates.

The MAX1240 has an internal 2.5V reference, while the MAX1241 requires an external reference. The MAX1241 accepts signals from 0V to VREF, and the reference input range includes the positive supply rail. An external clock accesses data from the 3-wire interface, which connects directly to standard microcontroller I/O ports. The interface is compatible with SPI™, QSPI™, and MICROWIRE™.

Excellent AC characteristics and very low power combined with ease of use and small package size make these converters ideal for remote-sensor and data-acquisition applications, or for other circuits with demanding power consumption and space requirements. The MAX1240/MAX1241 are available in 8-pin PDIP and SO packages.
MAX1240、MAX1241:功能框图 MAX1240、MAX1241:功能框图 放大+

关键特性

  • Single-Supply Operation:
    • +2.7V to +3.6V (MAX1240)
    • +2.7V to +5.25V (MAX1241)
  • 12-Bit Resolution
  • Internal 2.5V Reference (MAX1240)
  • Small Footprint: 8-Pin PDIP/SO Packages
  • Low Power: 3.7µW (73ksps, MAX1240)
    • 3mW (73ksps, MAX1241)
    • 66µW (1ksps, MAX1241)
    • 5µW (power-down mode)
  • Internal Track/Hold
  • SPI/QSPI/MICROWIRE 3-Wire Serial Interface
  • Internal Clock

应用

  • 电池供电应用
  • 仪表
  • 隔离型数据采集
  • 便携式数据记录
  • 过程控制

请查看具体的参数规格 Precision ADCs (< 5Msps) (432)


Part NumberResolution
(bits)
# Input ChannelsConv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
(ADC)(max)(nominal)(min)(max)(max)(See Notes)
MAX1240 12173SARSPIS.E. Only2.513.62.570-881
PDIP/8
SOIC (N)/8
$7.87 @1k
MAX1241 -5.25
PDIP/8
SOIC (N)/8
$5.72 @1k

Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

MAX1240EVKIT: MAX1240/MAX1241评估板
MAX1240PMB: MAX1240/MAX1241评估板
产品可靠性报告: MAX1240.pdf 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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