The ISL73148SEH is a radiation hardened, high-precision, 8-Channel 14-Bit 900/480ksps SAR analog-to-digital converter (ADC) with an integrated Programmable Gain Amplifier (PGA) that features an SNR of 83dBFS and dissipates only 90mW when operating from a 5V supply.

The product features 900kSPS throughput with no data latency and features excellent linearity and dynamic accuracy. The ISL73148SEH provides a high-speed SPI-compatible serial interface that supports logic ranging from 2.2V to 3.6V using a separate digital I/O supply pin. The integrated PGA has discrete gain steps of 1, 2, 3, 4, 6, 8, 12, and 16 and is controlled by external pin configurations.

The ISL73148SEH provides a separate power-down pin that reduces power dissipation to 115µW. The analog input signal range is determined by an external reference.

The ISL73148SEH operates across the military temperature range from -55 °C to +125 °C and is available in a 14Ld hermetically sealed Ceramic Dual Flat-Pack (CDFP) package.


  • 900kSPS throughput rate with PGA bypass 480ksps with the PGA enable all with no data latency
  • Excellent linearity: ±0.5 LSB DNL, ±1.5 LSB INL
  • No missing codes
  • Low noise: 83dB SNR
  • 5V AVCC analog supply
  • Separate 2.2V to 3.6V digital I/O supply
  • Low power: 90mW at 900kSPS
    • AVCC = 5V, DVCC = 2.5V
  • Power-down mode with 115µW power consumption
  • High-speed SPI-compatible serial I/O
  • Full military temperature range operation
    • TA = -55 °C to +125 °C
  • Radiation acceptance testing
    • LDR (0.01rad(Si)/s): 75krad(Si)
  • SEE hardness (see SEE report for details)
    • No SEB/SEL LETTH (AVCC = 6.3V): 86MeV•cm2/mg
    • No SEFIs at LET 86MeV•cm2/mg
  • Qualified to Renesas Rad Hard QML-V Equivalent Screening and QCI flow (R34TB0001EU)
    • All screening and QCI is in accordance with MIL-PRF- 38535L Class-V



  • Precision signal processing in satellite payloads
  • Satellite telemetry systems
  • Satellite propulsion and orbit control
  • Attitude control of satellites
  • High-end industrial
  • Down-hole drilling


PDF 2.55 MB Datasheet
PDF 4.85 MB Brochure
PDF 336 KB Technical Brief
PDF 606 KB Report
PDF 514 KB Application Note
PDF 1.47 MB Application Note
PDF 1.01 MB Report
PDF 533 KB White Paper
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ISL73148SEH Rad-Hard 14-bit SAR ADC Overview

Overview of the ISL73148 900KSPS, 8-Channel, SAR ADC with Integrated PGA. Highest performance rad-hard precision ADC for telemetry and sensing applications.