ISL28118M Datasheet, PDF (1/22 Pages) Intersil Corporation – 40V Extended Temperature Range, Precision Single-Supply, Rail-to-Rail Output

40V Extended Temperature Range, Precision
Single-Supply, Rail-to-Rail Output, Operational Amplifier
ISL28118M
The ISL28118M is a single, low-power precision amplifier
optimized for single-supply applications over the extended
temperature range of -55°C to +125°C. This device features a
common mode input voltage range extending to 0.5V below
the V- rail, a rail-rail differential input voltage range for use as a
comparator, and rail-to-rail output voltage swing, which makes
it ideal for single-supply applications where input operation at
ground is important.
The ISL28118M features low power, low offset voltage, and
low temperature drift, making it the ideal choice for
applications requiring both high DC accuracy and AC
performance. The op amp is designed to operate over a single
supply range of 3V to 40V or a split supply voltage range of
+1.8V/-1.2V to ±20V. The combination of precision and small
footprint provides the user with outstanding value and
flexibility relative to similar competitive parts.
Applications include precision instrumentation, data
acquisition, precision power supply controls, and industrial
controls.
The ISL28118M is offered in the 8 Ld MSOP package and
operate over the extended temperature range of -55°C to
+125°C.
Features
• Rail-to-Rail Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <10mV
• Below-Ground (V-) Input Capability to -0.5V
• Rail-to-Rail Input Differential Voltage Range for Comparator
Applications
• Single-Supply Range . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 40V
• Low Current Consumption . . . . . . . . . . . . . . . . . . . . . . . 850µA
• Low Noise Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 5.6nV/√Hz
• Low Noise Current . . . . . . . . . . . . . . . . . . . . . . . . . . 355fA/√Hz
• Low Input Offset Voltage . . . . . . . . . . . . . . . . . . . . 150µV Max.
• Superb Offset Voltage Temperature Drift.. . . 1.2µV/°C, Max.
• Operating Temperature Range. . . . . . . . . . .-55°C to +125°C
• No Phase Reversal
Applications
• Precision Instruments
• Medical Instrumentation
• Data Acquisition
• Power Supply Control
• Industrial Process Control
LOAD
R_SENSE
R_IN-
10kΩ
R_IN+
10kΩ
V_REF
R_F
100kΩ
IN- _-
V+
ISL28118M
IN+
V-
+
+3V
to 40V
V_OUT
R_REF+
100kΩ
GAIN = 10
FIGURE 1. TYPICAL APPLICATION: SINGLE-SUPPLY, LOW-SIDE
CURRENT SENSE AMPLIFIER
400
300
200
100
0
-100
-200
-300
-400
-16
-55°C
+25°C
-40°C
+125°C
-15
-14 -13 13
14
15
16
INPUT COMMON MODE VOLTAGE (V)
FIGURE 2. INPUT OFFSET VOLTAGE vs INPUT COMMON MODE
VOLTAGE, -40°C to +125°C, V_S = ±15V
May 11, 2011
1
FN7858.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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