40V Precision Single-Supply, Rail-to-Rail Output,
Low-Power Operational Amplifiers
ISL28118, ISL28218
The ISL28118 and 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-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 TDFN, 8 Ld SOIC and 8 Ld MSOP
packages. All devices are offered in standard pin
configurations and operate over the extended temperature
range of -40°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
- 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
V
REF
IN+
IN-
100kΩ
400
+3V
to 40V
300
V
OUT
V
OS
(µV)
200
100
0
-100
-200
-300
-400
-16
-15
-14
-13 13
14
15
16
+25°C
+125°C
-40°C
-
V+
ISL28118
V-
+
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
September 21, 2011
FN7532.3
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. 2010, 2011. 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.
ISL28118, ISL28218
Pin Configurations
ISL28118
(8 LD TDFN)
TOP VIEW
NC 1
-IN 2
+IN 3
V
-
4
PD
- +
8 NC
7 V
+
6 VOUT
5 NC
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 TDFN)
TOP VIEW
VOUT_A 1
-IN_A 2
+IN_A 3
V
-
4
PD
- +
+ -
8 V
+
7 VOUT_B
6 -IN_B
5 +IN_B
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
(8 LD TDFN)
3
2
6
4
ISL28118
(8 LD SOIC,
MSOP)
3
2
6
4
ISL28218
(8 LD TDFN)
3
2
1
4
5
6
7
7
1, 5, 8
PAD
7
1, 5, 8
8
-
PAD
ISL28218
(8 LD SOIC,
MSOP)
3
2
1
4
5
6
7
8
-
PIN
NAME
+IN_A
-IN_A
VOUT_A
V-
+IN_B
-IN_B
VOUT_B
V+
NC
PAD
EQUIVALENT
CIRCUIT
1
1
2
3
1
1
2
3
-
DESCRIPTION
Amplifier A non-inverting input
Amplifier A inverting input
Amplifier A output
Negative power supply
Amplifier B non-inverting input
Amplifier B inverting input
Amplifier B output
Positive power supply
No Connect
Thermal Pad is electrically isolated from active
circuitry. Pad can float, connect to Ground, or connect
to a potential source that is free from signals or noise
sources.
V
+
OUT
V
-
CIRCUIT 2
V
+
CAPACITIVELY
TRIGGERED ESD
CLAMP
V
-
CIRCUIT 3
V
+
IN-
IN
+
V
-
CIRCUIT 1
2
FN7532.3
September 21, 2011
ISL28118, ISL28218
Ordering Information
PART NUMBER
(Notes 2, 3)
ISL28118FBZ (Note 1)
Coming Soon
ISL28118FRTZ (Note 1)
ISL28118FUZ (Note 1)
ISL28218FBZ (Note 1)
Coming Soon
ISL28218FRTZ
Coming Soon
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
118Z
8118Z
28218 FBZ
218Z
8218Z
Evaluation Board
TEMPERATURE RANGE
(°C)
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
PACKAGE
(Pb-Free)
8 Ld SOIC
8 Ld TDFN
8 Ld MSOP
8 Ld SOIC
8 Ld TDFN
8 Ld MSOP
PKG.
DWG. #
M8.15E
L8.3x3A
M8.118
M8.15E
L8.3x3A
M8.118
3
FN7532.3
September 21, 2011
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 CDM-22CI0ID) . . . . . . . . . . . . . . . 2kV
Thermal Information
Thermal Resistance (Typical)
θ
JA
(°C/W)
θ
JC
(°C/W)
ISL28118
8 Ld TDFN Package (Notes 5, 6). . . . . . . . . .
50
9
8 Ld SOIC Package (Notes 4, 7) . . . . . . . . . .
120
60
8 Ld MSOP Package (Notes 4, 7) . . . . . . . . .
165
57
ISL28218
8 Ld TDFN Package (Notes 5, 6). . . . . . . . . .
48
5.5
8 Ld SOIC Package (Notes 4, 7) . . . . . . . . . .
120
55
8 Ld MSOP Package (Notes 4, 7) . . . . . . . . .
150
45
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
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.
θ
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.
θ
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief
TB379.
6. For
θ
JC
,
the “case temp” location is the center of the exposed metal pad on the package underside.
7. For
θ
JC
, the “case temp” location is taken at the package top center.
V
S
±15V, V
CM
= 0, V
O
= 0V, R
L
= Open, T
A
= +25°C, unless otherwise noted.
Boldface limits apply over the
operating temperature range,
-40°C to +125°C. Temperature data established by characterization.
MIN
PARAMETER
V
OS
DESCRIPTION
Input Offset Voltage
ISL28118
CONDITIONS
Electrical Specifications
(Note
8)
-150
-270
TYP
25
MAX
(Note 8)
150
270
UNIT
µV
µV
µV
µV
µV/°C
µV/°C
µV
µV
nA
nA
ISL28218
-230
-290
40
230
290
TCV
OS
Input Offset Voltage Temperature
Coefficient
Input Offset Voltage Match
(ISL28218 only)
Input Bias Current
ISL28118
ISL28218
-1.2
-1.4
-280
-365
-575
-800
0.2
0.3
44
1.2
1.4
280
365
ΔV
OS
I
B
-230
TCI
B
I
OS
Input Bias Current
Temperature Coefficient
Input Offset Current
-50
-75
-0.8
4
50
75
nA/°C
nA
nA
4
FN7532.3
September 21, 2011
ISL28118, ISL28218
V
S
±15V, V
CM
= 0, V
O
= 0V, R
L
= Open, T
A
= +25°C, unless otherwise noted.
Boldface limits apply over the
operating temperature range,
-40°C to +125°C. Temperature data established by characterization.
(Continued)
MIN
PARAMETER
CMRR
DESCRIPTION
Common-Mode Rejection Ratio
CONDITIONS
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
ISL28118 MSOP
V
CM
= V
-
to V
+
-1.8V
ISL28218
V
CMIR
Common Mode Input Voltage
Range
Power Supply Rejection Ratio
Guaranteed by CMRR test
102
98
102
97
103
99
V
-
- 0.5
V
-
V
S
= 3V to 40V, V
CMIR
= Valid Input Voltage
109
105
A
VOL
Open-Loop Gain
V
O
= -13V to +13V, R
L
= 10kΩ to ground,
ISL28118 SOIC
V
O
= -13V to +13V, R
L
= 10kΩ to ground,
ISL28218
V
O
= -13V to +13V, R
L
= 10kΩ to ground,
ISL28118 MSOP
V
OL
Output Voltage Low, V
OUT
to V
-
,
See Figure 32
ISL28118
R
L
= 10kΩ
ISL28218
R
L
= 10kΩ
V
OH
Output Voltage High, V
+
to V
OUT
See Figure 32
Supply Current/Amplifier
ISL28118
ISL28218
R
L
= 10kΩ
ISL28118
R
L
= Open
ISL28218
R
L
= Open
I
SC+
I
SC-
V
SUPPLY
Output Short Circuit Source
Current
Output Short Circuit Sink Current
Supply Voltage Range
R
L
= 10Ω to V
-
R
L
= 10Ω to V
+
Guaranteed by PSRR
3
0.85
125
120
125
122
120
116
70
85
70
73
110
120
1.2
1.6
0.85
1.1
1.4
16
28
40
136
136
136
124
V
+
- 1.8
V
+
- 1.8
118
118
Electrical Specifications
(Note
8)
TYP
118
118
MAX
(Note 8)
UNIT
dB
dB
dB
dB
dB
dB
dB
V
V
dB
dB
dB
dB
dB
dB
dB
dB
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
mA
mA
V
PSRR
I
S
AC SPECIFICATIONS
GBWP
e
np-p
e
n
e
n
e
n
e
n
Gain Bandwidth Product
Voltage Noise
Voltage Noise Density
Voltage Noise Density
Voltage Noise Density
Voltage Noise Density
A
CL
= 101, V
OUT
= 100mV
P-P
; R
L
= 2k
0.1Hz to 10Hz, V
S
= ±18V
f = 10Hz, V
S
= ±18V
f = 100Hz, V
S
= ±18V
f = 1kHz, V
S
= ±18V
f = 10kHz, V
S
= ±18V
4
300
8.5
5.8
5.6
5.6
MHz
nV
P-P
nV/√Hz
nV/√Hz
nV/√Hz
nV/√Hz
5
FN7532.3
September 21, 2011
