ISL28107_1009 Datasheet, PDF (1/32 Pages) Intersil Corporation – Precision Single, Dual and Quad Low Noise Operational Amplifiers

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 an 8 Ld SOIC, MSOP and
TDFN package. The ISL28207 is available in the 8 Ld
SOIC and MSOP packages. The ISL28407 will be offered
in an 14 Ld SOIC, TSSOP and 16 Ld QFN packages. All
devices are offered in standard pin configurations and
operate over the extended temperature range to -40°C
to +125°C.
Applications*(see page 26)
• 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 . . . . . . . . . . . . . . . . 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)
Related Literature*(see page 26)
• See AN1508 “ISL281X7SOICEVAL1Z Evaluation
Board User’s Guide”
• See AN1509 “ISL282X7SOICEVAL2Z Evaluation
Board User’s Guide”
Typical Application
C1
8.2nF
V+
-
V_IN R₁
R₂
+
19.1k 48.7k
3.3nF C2
V-
OUTPUT
Sallen-Key Low Pass Filter (1kHz)
Input Noise Voltage Spectral
Density
1000
V₊ = ±19V
A_V = 1
100
10
0.1
1
10
100
1k
10k 100k
FREQUENCY (Hz)
September 9, 2010
FN6631.3
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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