ISL70227SRH Datasheet, PDF (1/14 Pages) Intersil Corporation – 36V Rad Hard Dual Precision Operational Amplifier

36V Rad Hard Dual Precision Operational Amplifier
ISL70227SRH
The ISL70227SRH is a high precision dual operational
amplifier featuring very low noise, low offset voltage, low input
bias current and low temperature drift. These features plus its
radiation tolerance make the ISL70227SRH the ideal choice
for applications requiring both high DC accuracy and AC
performance. The combination of precision, low noise, and
small footprint provides the user with outstanding value and
flexibility relative to similar competitive parts.
Applications for these amplifiers include precision and
analytical instrumentation, active filters, precision power
supply controls, and industrial controls.
The ISL70227SRH is available in a 10 Ld hermetic ceramic
flatpack and operates over the extended temperature range of
-55°C to +125°C.
Applications
• Precision Instruments
• Industrial Controls
• Active Filter Blocks
• Data Acquisition
• Power Supply Control
Features
• Wide Supply Range . . . . . . . . . . . . . . . . . . . .4.5V to 36V Max.
• Very Low Voltage Noise . . . . . . . . . . . . . . . . . .2.5nV/√Hz, Typ.
• Gain-bandwidth Product . . . . . . . . . . . . . . . . . . . . . . . . 10MHz
• Superb Offset Drift . . . . . . . . . . . . . . . . . . . . . . . . 1µV/°C, Max
• Operating Temperature Range. . . . . . . . . . . . -55°C to +125°
• Low Input Voltage Offset . . . . . . . . . . . . . . . . . . . . . . 10µV, Typ.
• Input Bias Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1nA, Typ.
• Unity Gain Stable
• No Phase Reversal
• Radiation Tolerance
- High Dose Rate. . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si)
- Low Dose Rate . . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si)
- SEL/SEB LET_TH . . . . . . . . . . . . . . . . . . . . . . 86MeV/mg/cm²
Related Literature
• See AN1669, “ISL70227SRH Evaluation Board User’s
Guide”
C₁
1.5nF
V₊
-
R₁
R₂
V_IN
95.3 232
ISL70227SRH
+
68.3nF C₂
V_-
OUTPUT
Sallen-Key Low Pass Filter (1MHz)
FIGURE 1. TYPICAL APPLICATION
0
-5
-10
-15
BIASED
-20
-25
-30
0
GROUNDED
10 20 30 40
50 60 70 80
90 100
TOTAL DOSE (krad(Si))
FIGURE 2. OFFSET VOLTAGE vs RADIATION
September 23, 2011
1
FN7925.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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