Blog > EEE Components > ISL73141SEH and ISL73148SEH: Radiation-Hardened SAR ADCs for space applications

ISL73141SEH and ISL73148SEH: Radiation-Hardened SAR ADCs for space applications

Renesas’ ISL73141SEH and ISL73148SEH are high-performance, radiation-hardened analog-to-digital converters (ADCs), ideal for mission-critical systems in space and harsh environments, thanks to their precision, reliability, and radiation tolerance.

ISL73141SEH: High-Precision 14-Bit 1MSPS SAR ADC

Key Features:

  • Radiation Hardness: 75krad(Si) TID (LDR 0.01rad/s) 
  • Throughput: 1MSPS with zero data latency 
  • Linearity: ±0.2 LSB DNL, ±0.5 LSB INL 
  • Power Efficiency: 60mW (5V) or 28mW (3.3V) 
  • SPI Interface: High-speed, logic levels 2.2V–3.6V 
  • Temperature Range: –55°C to +125°C 
  • Package: 14-lead hermetic Ceramic Dual Flat-Pack (CDFP) 

ISL73148SEH: 8-Channel 14-Bit 900/480ksps SAR ADC

Key Features:

  • Radiation Hardness: 75krad(Si) TID 
  • Channels: 8 buffered inputs with integrated multiplexer 
  • PGA: Programmable gain 1–16 
  • Linearity: ±0.5 LSB DNL, ±1.5 LSB INL 
  • Noise: 83dBFS (PGA bypassed), 77dBFS (gain=2) 
  • Bandwidth: 50MHz (-3dB) 
  • Low Power Mode: Available 
  • Temp Range: –55°C to +125°C 
  • Package: 28-lead hermetic Ceramic Dual Flat-Pack 

Applications (for ISL73148SEH)

  • Satellite telemetry and propulsion 
  • Orbit and attitude control 
  • High-end industrial systems 
  • Down-hole drilling 

        Ordering Information

        ISL73141SEH

        ISL73148SEH

        Evaluation Boards

        For ISL73141SEH: 

        • ISL73141SEHFNEV1Z – 14-bit 1MSPS SAR ADC Eval Board (3.3V) 
        • ISL73141SEHF7EV1Z – Same but for 5V 
        • ISL73141VMREFEVKIT1Z – Voltage Monitor Eval Kit 
        • ISL73141TSREFEVKIT1Z – Temperature Sensor Eval Kit 
        • ISL73141BMREFEVKITxZ – Battery Monitor Eval Kit

        For ISL73148SEH: 

        • ISL73148SEHEV1Z – 14-bit 900/480ksps SAR ADC Eval Board (5V) 

        Why Choose Renesas Radiation-Hardened ADCs?

         

        Renesas’ radiation-hardened ADCs are built for the most demanding systems: 

        • Precision and low power 
        • Military temperature range 
        • Extensive test documentation 
        • Evaluation tools & kits 
        • QML-V level screening 
        • Designed for space, defense, and industrial systems 

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