Renesas ISL73141SEH抗辐射加固14位1MSPS SAR ADC解决方案

Renesas公司的ISL73141SEH是抗辐射加固的高精度14位1MSPS SAR 模数转换器(ADC),它的SNR为82.1dBFS,5V工作电压时的功耗仅为60mW.3.3V电源时,ISL73141SEH工作750ksps时的功耗仅为28mW.器件具有1Msps的吞吐量,没有数据等待,有极好的线性度和动态精确度.ISL73141SEH提供高速SPI兼容的串行接口,支持逻辑范围从2.2V到3.6V,采用分离的数字I/O电源引脚.器件还提供单独的降功耗引脚,把功耗降低到小于50μW.模拟输入信号范围由外接基准电压来确定.器件工作温度-55C 到 +125C.主要用在卫星有效载荷的精密信号处理,卫星遥测系统,卫星推进和轨道控制,卫星姿态控制以及高端工业和井下钻探.本文介绍了ISL73141SEH主要特性,功能框图以及评估板ISL73141SEHF7EV1Z主要特性和指标,电路图,材料清单和PCB设计图.

The ISL73141SEH is a radiation hardened highprecision 14-bit, 1Msps SAR Analog-to-DigitalConverter (ADC) that features SNR of 82.1dBFS anddissipates only 60mW when operating from a 5Vsupply. With a 3.3V supply, the ISL73141SEHoperates at 750ksps with a power consumption of28mW.

The product features 1Msps throughput with no datalatency and features excellent linearity and dynamicaccuracy. The ISL73141SEH provides a high-speedSPI-compatible serial interface that supports logicranging from 2.2V to 3.6V using a separate digital I/Osupply pin.

The ISL73141SEH provides a separate power-downpin that reduces power dissipation to <50μW. Theanalog input signal range is determined by anexternal reference.

The ISL73141SEH operates across the militarytemperature range from -55C to +125C and isavailable in a 14 Ld hermetically sealed Ceramic DualFlat-Pack (CDFP) package.

ISL73141SEH主要特性:

• 1Msps throughput rate with no data latency

• Excellent linearity: ±0.2 LSB DNL, ±0.5 LSB INL

• No missing codes

• Low noise: 82.1dB SNR

• 3.3V or 5V AVCC supply options

• Separate 2.2V to 3.6V digital I/O supply

• Low power: 60mW at 1Msps

○ AVCC = 5V, DVCC = 2.5V

• Power-down mode wit...