DATASHEET
ISL71091SEH20 FN8632
Rev 2.00
March 17, 2016 2.048V Radiation Hardened Ultra Low Noise, Precision Voltage Reference
The ISL71091SEH20 is an ultra low noise, high DC accuracy
precision voltage reference with a wide input voltage range
from 4.2V to 30V. It uses Intersil’s advanced bipolar technology
to achieve 3.8ВµVP-P 0.1Hz to 10Hz noise with an initial voltage
accuracy of 0.05%. Features The ISL71091SEH20 offers a 2.048V output voltage option
with 6ppm/В°C temperature coefficient and also provides
excellent line and load regulation. The device is offered in an
8 Ld flatpack package. Output voltage noise 3.8ВµVP-P typical (0.1Hz to 10Hz) The ISL71091SEH20 is ideal for high-end instrumentation,
data acquisition and processing applications requiring high DC
precision where low noise performance is critical. Output current capability . 10mA/-5mA Applications Reference output voltage . .2.048V В±0.05% Accuracy over temperature . В±0.15% Accuracy over radiation В±0.25% Supply current . 300ВµA (typical) VOS temperature coefficient 6ppm/В°C maximum Line regulation 5ppm/V maximum Load regulation (Sourcing) . 40ppm/mA maximum Operating temperature range . .-55В°C to +125В°C Precision voltage sources for data acquisition system for
space application Strain and pressure gauge for space applications Radiation hardened PWM requiring precision outputs Radiation environment
-High dose rate (50 to 300rad(Si)/s) . 100krad(Si)
-Low dose rate (0.01rad(Si)/s) . 100krad(Si)*
-SEL/SEB free (VCC = 36V) 86MeVcm2/mg
*Product capability established by initial characterization. The
“EH” version is acceptance tested on a wafer-by-wafer basis to
50krad(Si) at low dose rate. Related Literature AN1906, “ISL71091SEHxxEV1Z User’s Guide” AN1938, “Single Event Effects (SEE) Testing of the
ISL71091SEHxx Precision Voltage References Family” Electrically screened to SMD 5962-14208 AN1939, “Total Dose Testing of the ISL71091SEHxx
Precision Voltage Reference” ISL71091SEH20 2 VIN …
