Rad Hard Dual 36V Precision Single-Supply, Rail-to-Rail
Output, Low-Power Operational Amplifiers
ISL70218SEH
Features
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.
• DLA SMD# 5962-12222
• 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
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.
• 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
Applications for this amplifier include precision
instrumentation, data acquisition and precision power supply
controls.
• Radiation Tolerance
- SEL/SEB LETTH (VS = ±18V) . . . . . . . . .86.4 MeV * cm2/mg
- High Dose Rate. . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si)
- Low Dose Rate . . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si)
The ISL70218SEH is available in a 10 lead hermetic ceramic
flatpack and operates over the extended temperature range of
-55°C to +125°C.
* 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
• AN1653, “ISL70218SRH Evaluation Board User’s Guide”
Applications
• Precision Instruments
• Active Filter Blocks
• Data Acquisition
• AN1677, “Single Events Effects Testing of the
ISL70218SRH, Dual 36V Rad Hard Low Power Operational
Amplifiers”
• Power Supply Control
R
F
400
100kΩ
LOAD
+25°C
300
+3V
to 36V
R
-
IN
IN-
-
+125°C
200
V
OUT
V+
10kΩ
R
SENSE
ISL70218SEH
100
0
R
+
V-
IN
IN+
+
10kΩ
GAIN = 10
-100
R
+
REF
-40°C
-200
-300
-400
-55°C
100kΩ
V
REF
-16
-15
-14
-13 13
14
15
16
INPUT COMMON MODE VOLTAGE (V)
FIGURE 2. INPUT OFFSET VOLTAGE vs INPUT COMMON MODE
VOLTAGE, VS = ±15V
FIGURE 1. TYPICAL APPLICATION: SINGLE-SUPPLY, LOW-SIDE
CURRENT SENSE AMPLIFIER
August 24, 2012
FN7957.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2012. All Rights Reserved
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.
1