Rad Hard Dual 36V Precision Single-Supply, Rail-to-Rail
Output, Low-Power Operational Amplifiers
ISL70218SEH
The ISL70218SEH is a dual, low-power precision amplifier
optimized for single-supply applications. This op amp features
a common mode input voltage range extending to 0.5V below
the V- rail, a rail-rail differential input voltage range, and
rail-to-rail output voltage swing, which makes it ideal for
single-supply applications where input operation at ground is
important.
This op amp features low power, low offset voltage, and low
temperature drift, making it ideal for applications requiring
both high DC accuracy and AC performance. This amplifier is
designed to operate over a single supply range of 3V to 36V or a
split supply voltage range of +1.8V/-1.2V to ±18V. The
combination of precision and small footprint provides the user
with outstanding value and flexibility relative to similar
competitive parts.
Applications for this amplifier include precision
instrumentation, data acquisition and precision power supply
controls.
The ISL70218SEH is available in a 10 lead hermetic ceramic
flatpack and operates over the extended temperature range of
-55°C to +125°C.
Features
• DLA SMD#
• Wide Single and Dual Supply Range . . . . 3V to 42V, Abs. Max.
• Low Current Consumption . . . . . . . . . . . . . . . . . . . 850µA, Typ.
• Low Input Offset Voltage . . . . . . . . . . . . . . . . . . . . . 40µV, Typ.
• Rail-to-Rail Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <10mV
• Rail-to-Rail Input Differential Voltage Range for Comparator
Applications
• Operating Temperature Range. . . . . . . . . . .-55°C to +125°C
• Below-ground (V-) Input Capability to -0.5V
• Low Noise Voltage . . . . . . . . . . . . . . . . . . . . . . 5.6nV/√Hz, Typ.
• Low Noise Current . . . . . . . . . . . . . . . . . . . . . . 355fA/√Hz, Typ.
• Offset Voltage Temperature Drift . . . . . . . . . . . 0.3µV/°C, Typ.
• No Phase Reversal
• Radiation Tolerance
- SEL/SEB LET
TH
(V
S
= ±18V) . . . . . . . . . 86.4 MeV * cm
2
/mg
- High Dose Rate. . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si)
- Low Dose Rate . . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si)
* Product capability established by initial characterization. The
EH version is acceptance tested on a wafer by wafer basis to
50krad(Si) at low dose rate.
Related Literature
•
“ISL70218SRH Evaluation Board User’s Guide”
•
“Single Events Effects Testing of the
ISL70218SRH, Dual 36V Rad Hard Low Power Operational
Amplifiers”
Applications
• Precision Instruments
• Active Filter Blocks
• Data Acquisition
• Power Supply Control
R
F
LOAD
R
IN
-
R
SENSE
10kΩ
R
IN
+
10kΩ
R
REF
+
100kΩ
V
REF
IN-
-
100kΩ
+3V
to 36V
400
300
V
OUT
|V
OS
(µV)|
200
100
0
-100
-200 -55°C
-300
-400
-16
-15
-14
-13 13
14
15
16
-40°C
+125°C
+25°C
V+
ISL70218SEH
V-
IN+
+
GAIN = 10
INPUT COMMON MODE VOLTAGE (V)
FIGURE 1. TYPICAL APPLICATION: SINGLE-SUPPLY, LOW-SIDE
CURRENT SENSE AMPLIFIER
FIGURE 2. INPUT OFFSET VOLTAGE vs INPUT COMMON MODE
VOLTAGE, V
S
= ±15V
August 24, 2012
FN7957.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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|
Copyright Intersil Americas Inc. 2012. All Rights Reserved
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