Datasheet

FN6607 Rev.5.02

Page 1

Feb 13, 2025

© 2007-2025 Renesas Electronics

Description

The ISL7119RH and ISL7119EH are radiation

hardened, high-speed, dual-voltage comparators

fabricated on a single monolithic chip. They operate

over a wide dual supply voltage range as well as a

single 5V logic supply and ground. The open collector

output stage facilitates interfacing with a variety of

logic devices and has the ability to drive relays and

lamps at output currents up to 25mA.

The ISL7119RH, ISL7119EH are fabricated on our

dielectrically isolated Radiation Hardened Silicon

Gate (RSG) process, which provides immunity to

Single Event Latch-Up (SEL) and highly reliable

performance in the natural space environment.

Applications

▪ Window detector

▪ Level shifter

▪ Relay driver

▪ Lamp driver

Features

▪ Electrically screened to DLA SMD # 5962-07215

• QML qualified per MIL-PRF-38535 requirements

▪ Input offset voltage (VIO): 8mV (max)

▪ Input bias current (IBIAS): 1000nA (max)

▪ Input offset current (IIO): 150nA (max)

▪ Saturation voltage at ISINK = 3.2mA (VSAT):

0.65V(max)

▪ Saturation voltage at ISINK = 25mA (VSAT):

1.8V(max)

▪ Response time (tPD): 160ns (max)

▪ Radiation acceptance testing - ISL7119RH

• HDR (50-300rad(Si)/s): 300krad(Si)

▪ Radiation acceptance testing - ISL7119EH

• HDR (50-300rad(Si)/s): 300krad(Si)

• LDR (0.01rad(Si)/s): 50krad(Si)

▪ SEE hardness (see SEE report for details)

• SEL/SEB: Immune[1]

1. Devices use dielectrically isolated (DI) technology and latch

up is physically not possible.

Figure 1. Typical Application Circuit: Inverting Comparator with Hysteresis

VTH(High)

VREF VPU VREF

–



R1

R1 R2 RPU

++

----------------------------------------



+

=

VTH(Low)

VREF VREF VOL

–



R1

R1 R2

+

---------------------



–

=

VPU VREF VOL



VREF

VIN

RPU

VOUT

R2

R1

GND

+VS

-VS

VPU

ISL7119RH, ISL7119EH

Radiation Hardened High Speed Dual Voltage Comparators