
1
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.
Applications
Precision instruments
Medical instrumentation
Spectral analysis equipment
Active filter blocks
Microphone pre-amplifier
Thermocouples and RTD reference buffers
Data acquisition
Power supply control
Features
Low input offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75V Max.
Input bias current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15pA
Superb temperature drift
- Voltage offset . . . . . . . . . . . . . . . . . . . . . . . 0.65V/°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)
Related Literature
See
AN1508 “ISL281X7SOICEVAL1Z Evaluation Board
User’s Guide”
User’s Guide”
FIGURE 1. TYPICAL APPLICATION
FIGURE 2. INPUT NOISE VOLTAGE SPECTRAL DENSITY
-
+
OUTPUT
V+
R1
V-
R2
C1
C2
SALLEN-KEY LOW PASS FILTER (1kHz)
VIN
19.1k
48.7k
3.3nF
8.2nF
FREQUENCY (Hz)
10
100
1000
IN
PU
T
N
O
IS
E
VO
L
T
A
G
E
(
n
V
/√
Hz)
0.1
1
10
100
1k
10k
100k
V+ = ±19V
AV = 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.
February 25, 2013
FN6631.7