Precision Single, Dual and Quad Low Noise Operational
Amplifiers
ISL28107, ISL28207, ISL28407
The ISL28107, ISL28207 and ISL28407 are single, dual and
quad amplifiers featuring low noise, low input bias current,
and low offset and temperature drift. This makes them the
ideal choice for applications requiring both high DC accuracy
and AC performance. The combination of precision, low noise,
and small footprint provides the user with outstanding value
and flexibility relative to similar competitive parts.
Applications for these amplifiers include precision active
filters, medical and analytical instrumentation, precision
power supply controls, and industrial controls.
The ISL28107 is available in 8 Ld SOIC, MSOP and TDFN
packages. The ISL28207 is available in 8 Ld SOIC, MSOP and
TDFN packages. The ISL28407 is available in a 14 Ld SOIC
package. All devices are offered in standard pin configurations
and operate over the extended temperature range of -40°C to
+125°C.
Features
• Low input offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75µV Max.
• Input bias current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15pA
• Superb temperature drift
- Voltage offset . . . . . . . . . . . . . . . . . . . . . . . 0.65µV/°C Max.
- Input current . . . . . . . . . . . . . . . . . . . . . . . . . .0.9pA/°C Max.
• Outstanding ESD performance
- Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5kV
- Machine Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500V
- Charged Device Model. . . . . . . . . . . . . . . . . . . . . . . . . .1.5kV
• Very low voltage noise, 10Hz . . . . . . . . . . . . . . . . . . 14nV/√Hz
• Low current consumption (per amp) . . . . . . . . . 0.29mA Max.
• Gain-bandwidth product . . . . . . . . . . . . . . . . . . . . . . . . . . 1MHz
• Wide supply range . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 40V
• Operating temperature range. . . . . . . . . . . .-40°C to +125°C
• No phase reversal
• Pb-free (RoHS compliant)
Applications
• Precision instruments
• Medical instrumentation
• Spectral analysis equipment
• Active filter blocks
• Microphone pre-amplifier
• Thermocouples and RTD reference buffers
• Data acquisition
• Power supply control
Related Literature
• See
AN1508
“ISL281X7SOICEVAL1Z Evaluation Board
User’s Guide”
• See
AN1509
“ISL282X7SOICEVAL2Z Evaluation Board
User’s Guide”
INPUT NOISE VOLTAGE (nV/√Hz)
C1
8.2nF
V+
-
V
IN
R
1
19.1k
R
2
+
48.7k
3.3nF
C2
V-
OUTPUT
1000
V
+
= ±19V
A
V
= 1
100
10
0.1
1
10
100
1k
10k
100k
SALLEN-KEY LOW PASS FILTER (1kHz)
FREQUENCY (Hz)
FIGURE 1. TYPICAL APPLICATION
FIGURE 2. INPUT NOISE VOLTAGE SPECTRAL DENSITY
February 25, 2013
FN6631.7
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 LLC 2009-2013. 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.
ISL28107, ISL28207, ISL28407
Table of Contents
Pin Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Thermal Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Specifications V
S
±15V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Specifications V
S
±5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Typical Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Applications Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input ESD Diode Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Current Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Phase Reversal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unused Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ISL28107, ISL28207, ISL28407 SPICE Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
License Statement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
19
19
19
20
20
20
20
20
20
Characterization vs Simulation Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
About Intersil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
M8.15E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
M8.15E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
M8.118B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
L8.3x3K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
MDP0027 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2
FN6631.7
February 25, 2013
ISL28107, ISL28207, ISL28407
Pin Configurations
ISL28107
(8 LD SOIC, MSOP)
TOP VIEW
NC
-IN
+IN
V-
1
2
3
4
- +
8
7
6
5
NC
V+
V
OUT
NC
NC 1
-IN 2
+IN 3
V- 4
- +
ISL28107
(8 LD TDFN)
TOP VIEW
8 NC
7 V+
6 V
OUT
5 NC
ISL28207
(8 LD SOIC, MSOP)
TOP VIEW
V
OUT
A
-IN_A
+IN_A
V-
1
2
3
4
- +
+ -
8
7
6
5
V+
V
OUT
B
-IN_B
+IN_B
V
OUT
_A 1
-IN_A 2
+IN_A 3
V- 4
ISL28207
(8 LD TDFN)
TOP VIEW
8 V+
- +
+ -
7 V
OUT
_B
6 -IN_B
5 +IN_B
ISL28407
(14 LD SOIC)
TOP VIEW
V
OUT
_A 1
-IN_A 2
+IN_A 3
V+ 4
+IN_B 5
-IN_B 6
V
OUT
_B 7
- +
B
+ -
C
A
- +
D
+ -
14 V
OUT
_D
13 -IN_D
12 +IN_D
11
V-
10 +IN_C
9 -IN_C
8 V
OUT
_C
3
FN6631.7
February 25, 2013
ISL28107, ISL28207, ISL28407
Pin Descriptions
ISL28107
(8 Ld SOIC,
MSOP, TDFN)
3
-
-
-
-
4
2
-
-
-
-
7
6
-
-
-
-
1, 5, 8
PD
ISL28207
(8 Ld SOIC,
MSOP, TDFN)
-
3
5
-
-
4
-
2
6
-
-
8
-
1
7
-
-
-
PD
ISL28407
(14 Ld SOIC)
-
3
5
10
12
11
-
2
6
9
13
4
-
1
7
8
14
-
-
PIN
NAME
+IN
+IN_A
+IN_B
+IN_C
+IN_D
V-
-IN
-IN_A
-IN_B
-IN_C
-IN_D
V+
V
OUT
V
OUT
_A
V
OUT
_B
V
OUT
_C
V
OUT
_D
NC
PD
-
-
No internal connection
Thermal Pad - TDFN and
QFN packages only.
Connect thermal pad to
ground or most negative
potential.
Circuit 3
Circuit 2
Positive power supply
Amplifier output
Circuit 3
Circuit 1
Negative power supply
Amplifier inverting input
EQUIVALENT CIRCUIT
Circuit 1
DESCRIPTION
Amplifier non-inverting
input
V+
500Ω
IN-
500Ω
IN+
V+
OUT
V-
CIRCUIT 2
V+
CAPACITIVELY
TRIGGERED
ESD CLAMP
V-
CIRCUIT 3
V-
CIRCUIT 1
4
FN6631.7
February 25, 2013
ISL28107, ISL28207, ISL28407
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
ISL28107FBZ
ISL28107FUZ
ISL28107FRTZ
ISL28207FBZ
ISL28207FUZ
ISL28207FRTZ
ISL28407FBZ
ISL28107SOICEVAL1Z
ISL28207SOICEVAL2Z
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to Tech Brief
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 page fo
r
ISL28107, ISL28207
and
ISL28407
.
For more information on MSL please
see Tech Brief
TB363.
PART
MARKING
28107 FBZ
8107Z
107Z
28207 FBZ
8207Z
8207
28407 FBZ
Evaluation Board
Evaluation Board
TEMP. RANGE
(°C)
-40 to +125
-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 MSOP
8 Ld TDFN
8 Ld SOIC
8 Ld MSOP
8 Ld TDFN
14 Ld SOIC
M8.15E
M8.118B
L8.3x3K
M8.15E
M8.118B
L8.3x3K
MDP0027
PKG.
DWG. #
5
FN6631.7
February 25, 2013
