ISL70244SEH Datasheet, PDF (1/21 Pages) Intersil Corporation – Rail-to-rail input and output

DATASHEET
19MHz Radiation Hardened 40V Dual Rail-to-Rail
Input-Output, Low-Power Operational Amplifier
ISL70244SEH
The ISL70244SEH features two 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) (LET_TH = 86.4MeV•cm²/mg), the
number of filtering components needed is drastically reduced.
The ISL70244SEH is also immune to single-event latch-up as it
is fabricated in Intersil’s proprietary PR40 Silicon On Insulator
(SOI) process.
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.
The ISL70244SEH is available in a 10 Ld hermetic ceramic
flatpack that operates across the temperature range of -55°C
to +125°C.
Related Literature
• AN1888, “ISL70244SEH Evaluation Board User’s Guide”
• AN1961, “ISL70244SEH Single Event Effects Report”
• ISL70244SEH SMD 5962-13248
• AN1870, “ISL70444SEH Radiation Test Report”
• ISL70444SEH Neutron Test Report
Features
• Electrically screened to DLA SMD # 5962-13248
Acceptance tested to 50krad(Si) (LDR) wafer-by-wafer
• <5µs recovery from SET (LET_TH = 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
• Operating temperature range. . . . . . . . . . . .-55°C to +125°C
• Radiation tolerance
- High dose rate (50-300rad(Si)/s). . . . . . . . . . . 300krad(Si)
- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . 100krad(Si)*
- SEL/SEB LET_TH (V_S = ±19V) . . . . . . . . . 86.4MeV•cm²/mg
* Product capability established by initial characterization.
Applications
• Precision instruments
• Active filter blocks
• Data acquisition
• Power supply control
• Process control
I_LOAD
Rs
L
V_SRC
+
-
R₃
R₁
O
A
R₂
D
R₄
V_REF
V+
-
ISL70244SEH
+
V-
V_OU
T
R₁ = R₃ = 10kO
R₂ = R₄ = 100kO
Gain = R2/R1 = 10
V+ = 36V; V- = 0V; V_REF = 18V
V_OUT = V_REF + Gain(I_LOAD* R_S)
FIGURE 1. TYPICAL APPLICATION: SINGLE-SUPPLY, HIGH-SIDE
CURRENT SENSE AMPLIFIER
1400
1200
1000
800
600
400
5
1
200
0
0 0.2 0.4 0.8 1.0 1.2 1.4 1.6 1.8 2.0
TRANSIENT DURATION (µs)
FIGURE 2. TYPICAL SINGLE EVENT TRANSIENT DURATION AT +25°C
LET = 60MeV•cm²/ mg IN UNITY GAIN (V_S = ±18V)
September 1, 2016
1
FN8592.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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