Japanese semiconductor manufacturer Renesas Electronics Corporationhas has introduced the industry’s highest performance single-chip 14-Bit, 1-MSPS successive-approximation-register (SAR) analog-to-digital converter (ADC) for radiation-hardened (rad-hard) space applications.
December 01, 2020. By Manu Tayal
The company’s Intersil brand ISL73141SEH delivers best in class dynamic and static performance, including signal-to-noise ratio (SNR), effective number of bits (ENOB), integral non-linearity (INL) and differential non-linearity (DNL). The ADC fully resets after every sample, clearing any errors that result from a single event upset (SEU) due to heavy ion radiation during spaceflight.
The ISL73141SEH ADC is one of 7 ICs, including rad-hard temperature sensor, multiplexer, quad op amp, ADC driver, LDO and voltage reference to form a complete sensor interface signal chain solution that accelerates telemetry, tracking, and control (TT&C) and flight computer system development.
Commenting about the product, Philip Chesley, Vice President, Industrial and Communications Business Division at Renesas, said that “the ISL73141SEH offers satellite and spacecraft manufacturers the ultimate in ADC performance combined with a best-in-class sensor interface signal chain.”
“Our space-grade 14-bit ADC delivers significantly better data converter performance than any other competing solution, and it is backed by six decades of leadership in radiation performance testing and characterization that gives spaceflight customers the mission assurance they demand,” Chesley added.
The space-grade ISL73141SEH is fully characterized for enhanced low dose rate-sensitivity (ELDRS) radiation performance up to 75krad(Si) for total ionizing dose (TID) and linear energy transfer (LET) up to 86MeV*cm2/mg for single event effects (SEE). The SEE testing also shows no single event latch-up (SEL) or single event burnout (SEB). In addition, single event transients (SETs) have also been mitigated by testing at an LET range up to 86MeV*cm2/mg.
Meanwhile, the ISL73141SEH 14-bit, 1-MSPS SAR ADC is now available in a 14-lead ceramic dual flatpack package. An evaluation board is available for evaluating device features and performance.
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