DATASHEET
ISL70244SEH, ISL73244SEH
19MHz Radiation Hardened 40V Dual Rail-to-Rail Input-Output, Low-Power
Operational Amplifier
FN8592
Rev 4.00
Aug 16, 2019
The ISL70244SEH and ISL73244SEH (ISL7x244SEH) feature
Features
two low-power amplifiers optimized to provide maximum
• Electrically screened to DLA SMD # 5962-13248
dynamic range. These operational amplifiers (op amps)
feature a unique combination of rail-to-rail operation on the
input and output and a slew enhanced front end that provides
ultra fast slew rates positively proportional to a given step size.
These features increase accuracy under both periodic and
transient conditions. The ISL7x244SEH also offers low power,
low offset voltage, and low temperature drift, which makes 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 ISL7x244SEH
is also immune to single-event latch-up because it is fabricated
in the Renesas proprietary PR40 Silicon On Insulator (SOI)
process.
Acceptance tested to 50krad(Si) (LDR) wafer-by-wafer
• <5µs recovery from SET (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 maximum
• Low input offset voltage . . . . . . . 400µV (+25°C, maximum)
• Low current consumption (per amplifier) . . . . 1.2mA, typical
• No phase reversal with input overdrive
• Slew rate
- Large signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V/µs
The amplifiers 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.
• Operating temperature range. . . . . . . . . . . .-55°C to +125°C
• ISL70244SEH radiation acceptance (see TID report)
- High dose rate (50-300rad(Si)/s). . . . . . . . . . . 300krad(Si)
- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . . . .50krad(Si)
• ISL73244SEH radiation acceptance (see TID report)
- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . . . .50krad(Si)
• SEE hardness (see SEE report for details)
The ISL7x244SEH is available in a 10 Ld hermetic ceramic
flatpack that operates across the temperature range of -55°C
to +125°C.
- SEL/SEB LETTH (VS = ±19V) . . . . . . . . . 86.4MeV•cm2/mg
Related Literature
For a full list of related documents, visit our website:
Applications
• Precision instruments
• Active filter blocks
• Data acquisition
• ISL70244SEH and ISL73244SEH device pages
• Power supply control
• Process control
I
LOAD
Rs
1400
1200
1000
800
L
+
O
A
D
V
SRC
R
R
1
-
3
R
2
V+
600
-
ISL7x244SEH
400
VOUT
5
1
+
R
R
= R = 10kO
200
0
1
3
V-
= R = 100kO
4
2
R
4
Gain = R /R = 10
2
1
0
0.2 0.4 0.8 1.0 1.2 1.4 1.6 1.8 2.0
TRANSIENT DURATION (µs)
V+ = 36V; V- = 0V; V
REF
= 18V
* R )
VREF
V
OUT
= V
REF
+ Gain(I
LOAD
S
FIGURE 1. TYPICAL APPLICATION: SINGLE-SUPPLY, HIGH-SIDE
CURRENT SENSE AMPLIFIER
FIGURE 2. TYPICAL SINGLE EVENT TRANSIENT DURATION AT +25°C
LET = 60MeV•cm2/ mg IN UNITY GAIN (VS = ±18V)
FN8592 Rev 4.00
Aug 16, 2019
Page 1 of 24
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