DATASHEET
ISL28118, ISL28218
40V Precision Single-Supply, Rail-to-rail Output, Low-power Operational
Amplifiers
The
ISL28118, ISL28218
are single and dual, low-power
precision amplifiers optimized for single-supply applications.
These devices feature a common mode input voltage range
extending to 0.5V below the V
-
rail, a rail-to-rail differential
input voltage range for use as a comparator and rail-to-rail
output voltage swing, which makes them ideal for
single-supply applications where input operation at ground is
important.
These op amps feature low power, low offset voltage and low
temperature drift, making them the ideal choice for
applications requiring both high DC accuracy and AC
performance. These amplifiers are 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 for these amplifiers include precision
instrumentation, data acquisition, precision power supply
controls and industrial controls.
Both parts are offered in 8 Ld SOIC and 8 Ld MSOP packages. All
devices are offered in standard pin configurations and operate
across the extended temperature range of -40°C to +125°C.
FN7532
Rev 7.00
July 27, 2015
Features
• Rail-to-rail output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <10mV
• Below-ground (V
-
) input capability to -0.5V, ground sensing
• 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
- ISL28118 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150µV (max)
- ISL28218 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230µV (max)
• Superb offset voltage temperature drift
- ISL28118 . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2µV/°C (max)
- ISL28218 . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4µV/°C (max)
• Operating temperature range. . . . . . . . . . . -40°C to +125°C
• No phase reversal
Applications
• Precision instruments
• Medical instrumentation
• Data acquisition
• Power supply control
• Industrial process control
Related Literature
•
AN1595,
“ISL28218SOICEVAL1Z Evaluation Board User’s
Guide”
R
f
LOAD
R
IN
-
R
SENSE
10kΩ
R
IN
+
10kΩ
R
REF
+
100kΩ
IN+
IN-
100kΩ
400
300
+3V
to 40V
200
V
OUT
V
OS
(µV)
-40°C
100
0
-100
-200
-300
+25°C
+125°C
-
V
+
ISL28118
V
-
+
GAIN = 10
V
REF
-400
-16
-15
-14
-13 13
14
15
16
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
FN7532 Rev 7.00
July 27, 2015
Page 1 of 29
ISL28118, ISL28218
Table of Contents
Pin Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Thermal Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical Specifications (V
S
±15V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical Specifications (V
S
±5V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Applications Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Stage Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Drive Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Phase Reversal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single Channel Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ISL28118 and ISL28218 SPICE Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
19
19
19
19
19
19
20
20
Characterization vs Simulation Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
About Intersil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Package Outline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
M8.15E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
M8.118B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
FN7532 Rev 7.00
July 27, 2015
Page 2 of 29
ISL28118, ISL28218
Pin Configurations
ISL28118
(8 LD SOIC, 8 LD MSOP)
TOP VIEW
NC
-IN
+IN
V
-
1
2
3
4
- +
8
7
6
5
NC
V
+
VOUT
NC
ISL28218
(8 LD SOIC, 8 LD MSOP)
TOP VIEW
VOUT_A
-IN_A
+IN_A
V
-
1
2
3
4
- +
+ -
8
7
6
5
V
+
VOUT
_
B
-IN_B
+IN_B
Pin Descriptions
ISL28118
ISL28218
(8 LD SOIC, MSOP) (8 LD SOIC, MSOP)
3
2
6
4
3
2
1
4
5
6
7
7
1, 5, 8
8
-
V
+
IN-
IN
+
V
-
CIRCUIT 1
CIRCUIT 2
PIN
NAME
+IN, +IN_A
-IN, -IN_A
VOUT, VOUT_A
V
-
+IN_B
-IN_B
VOUT_B
V
+
NC
EQUIVALENT
CIRCUIT
1
1
2
3
1
1
2
3
-
DESCRIPTION
Amplifier A noninverting input
Amplifier A inverting input
Amplifier A output
Negative power supply
Amplifier B noninverting input
Amplifier B inverting input
Amplifier B output
Positive power supply
No Connect
V
+
OUT
V
-
V
+
CAPACITIVELY
TRIGGERED ESD
CLAMP
V
-
CIRCUIT 3
FN7532 Rev 7.00
July 27, 2015
Page 3 of 29
ISL28118, ISL28218
Ordering Information
PART NUMBER
(Notes
1, 2, 3)
ISL28118FBZ
ISL28118FUZ
ISL28218FBZ
ISL28218FUZ
ISL28218SOICEVAL1Z
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to
TB347
for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials and 100% matte tin
plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free
products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see device information pages for
ISL28118, ISL28218.
For more information on MSL, please see
Technical Brief
TB363.
PART MARKING
28118 FBZ
8118Z
28218 FBZ
8218Z
Evaluation Board
TEMP RANGE
(°C)
-40 to +125
-40 to +125
-40 to +125
-40 to +125
PACKAGE
(RoHS Compliant)
8 Ld SOIC
8 Ld MSOP
8 Ld SOIC
8 Ld MSOP
PKG.
DWG. #
M8.15E
M8.118B
M8.15E
M8.118B
FN7532 Rev 7.00
July 27, 2015
Page 4 of 29
ISL28118, ISL28218
Absolute Maximum Ratings
Maximum Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42V
Maximum Differential Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
Maximum Differential Input Voltage . . . . . . . . 42V or V
-
- 0.5V to V
+
+ 0.5V
Min/Max Input Voltage . . . . . . . . . . . . . . . . . . . 42V or V
-
- 0.5V to V
+
+ 0.5V
Max/Min Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20mA
Output Short-circuit Duration (1 output at a time) . . . . . . . . . . . . . . Indefinite
ESD Tolerance
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . . . 3kV
Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . 300V
Charged Device Model (Tested per JESD22-CI0ID). . . . . . . . . . . . . . . 2kV
ESD Tolerance (ISL28118 SOIC package only)
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . 5.5kV
Machine Model (Tested per JESD22-A115-C) . . . . . . . . . . . . . . . . . 300V
Charged Device Model (Tested per JESD22-CI0ID). . . . . . . . . . . . . . . 2kV
Thermal Information
Thermal Resistance (Typical)
JA
(°C/W)
JC
(°C/W)
ISL28118
8 Ld SOIC Package (Notes
4, 5)
. . . . . . . . .
120
60
8 Ld MSOP Package (Notes
4, 5)
. . . . . . . .
165
57
ISL28218
8 Ld SOIC Package (Notes
4, 5)
. . . . . . . . .
120
55
8 Ld MSOP Package (Notes
4, 5)
. . . . . . . .
150
58
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see
TB493
Recommended Operating Conditions
Ambient Operating Temperature Range . . . . . . . . . . . . . -40°C to +125°C
Maximum Operating Junction Temperature . . . . . . . . . . . . . . . . . +150°C
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . 3V (+1.8V/-1.2V) to 40V (±20V)
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4.
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief
TB379
for details.
5. For
JC
, the “case temp” location is taken at the package top center.
Electrical Specifications (V
S
±15V)
PARAMETER
V
OS
DESCRIPTION
Input Offset Voltage
V
CM
= 0, V
O
= 0V, R
L
= Open, T
A
= +25°C, unless otherwise noted.
Boldface entries apply
across the operating temperature range,
-40°C to +125°C. Temperature data established by characterization.
TEST CONDITIONS
ISL28118
MIN
(Note
6)
-150
-270
ISL28218
-230
-290
TCV
OS
V
OS
Input Offset Voltage Temperature
Coefficient
Input Offset Voltage Match
(ISL28218 only)
ISL28118
ISL28218
All packages
SOIC
MSOP
I
B
Input Bias Current
-1.2
-1.4
-280
-365
-390
-575
-800
TCI
B
I
OS
Input Bias Current
Temperature Coefficient
Input Offset Current
-50
-75
CMRR
Common Mode Rejection Ratio
V
CM
= V
-
- 0.5V to V
+
- 1.8V
V
CM
= V
-
to V
+
-1.8V
ISL28118 SOIC
V
CM
= V
-
to V
+
-1.8V
ISL28218 SOIC
V
CM
= V
-
to V
+
-1.8V
ISL28118 and ISL28218 MSOP
V
CMIR
Common Mode Input Voltage
Range
Guaranteed by CMRR test
102
98
103
99
102
97
V
-
- 0.5
V
-
V
+
- 1.8
V
+
- 1.8
118
118
118
118
-0.8
4
50
75
-230
0.2
0.3
44
40
TYP
25
MAX
(Note
6)
150
270
230
290
1.2
1.4
280
365
390
UNIT
µV
µV
µV
µV
µV/°C
µV/°C
µV
µV
µV
nA
nA
nA/°C
nA
nA
dB
dB
dB
dB
dB
dB
dB
V
V
FN7532 Rev 7.00
July 27, 2015
Page 5 of 29
