19MHz Rad Hard 40V Quad Rail-to-Rail Input-Output,
Low-Power Operational Amplifiers
ISL70444SEH
Features
The ISL70444SEH features four low-power amplifiers
optimized to provide maximum dynamic range. These op
amps feature a unique combination of rail to rail operation on
the input and output as well as a slew enhanced front end that
provides ultra fast slew rates positively proportional to a given
step size; thereby increasing accuracy under transient
conditions, whether it’s periodic or momentary. They also offer
low power, low offset voltage, and low temperature drift,
making it ideal for applications requiring both high DC
accuracy and AC performance. With <5µs recovery for Single
Event Transients (SET) (LETTH = 86.4MeV•cm2/mg), the
number of filtering components needed is drastically reduced.
The ISL70444SEH is also immune to Single Event Latch-up as
it is fabricated in Intersil’s Proprietary PR40 Silicon On
Insulator (SOI) process.
• Electrically screened to DLA SMD# 5962-13214
• Acceptance tested to 50krad(Si) (LDR) wafer-by-wafer
• <5µs recovery from SEE (LETTH = 86.4MeV•cm2/mg)
• Unity gain stable
• Rail-to-rail input and output
• Wide gain·bandwidth product . . . . . . . . . . . . . . . . . . . . 19MHz
• Wide single and dual supply range. . . . . . . . 2.7V to 40V Max
• Low input offset voltage . . . . . . . . . . . . . . . . . . . . . . . . . 300µV
• Low current consumption (per amplifier) . . . . . . . 1.1mA, Typ
• No phase reversal with input overdrive
• Slew rate
- Large signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V/µs
• Operating temperature range. . . . . . . . . . . .-55°C to +125°C
They are designed to operate over a single supply range of 2.7V
to 40V or a split supply voltage range of ±1.35V to ±20V.
Applications for these amplifiers include precision
instrumentation, data acquisition, precision power supply
controls, and process controls.
• Radiation tolerance
- High dose rate (50-300rad(Si)/s). . . . . . . . . . . 300krad(Si)
- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . 100krad(Si)*
- SEL/SEB LETTH . . . . . . . . . . . . . . . . . . . . 86.4MeV•cm2/mg
The ISL70444SEH is available in a 14 Ld Hermetic Ceramic
Flatpack and die forms that operate over the temperature
range of -55°C to +125°C.
* Product capability established by initial characterization.
Applications
• Precision instruments
• Active filter blocks
• Data acquisition
Related Literature
• ISL70444SEH Evaluation Board User’s Guide AN1824
• ISL70444SEH Single Event Effects Report AN1838
• ISL70444SEH SMD 5962-13214
• Power supply control
• Process control
• ISL70444SEH Radiation Test Report
R
F
30
100kΩ
Vs = ±18V
+2.7V
to 40V
R
-
IN
20
-IN
-
V
+
OUT
V+
10kΩ
10
ISL70444
R
SENSE
R
+
V-
IN
+IN
+
0
V
=
OUT
GROUNDED
10kΩ
10 (I
* R
)
LOAD
SENSE
-10
R
+
REF
LOAD
BIASED
100kΩ
-20
V
REF
-30
0
50
100
150
200
250
300
krad (Si)
FIGURE 1. TYPICAL APPLICATION: SINGLE-SUPPLY, HIGH-SIDE
CURRENT SENSE AMPLIFIER
FIGURE 2. VOS SHIFT vs HIGH DOSE RATE RADIATION
June 14, 2013
FN8411.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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