ISL28107_09 Datasheet, PDF (1/22 Pages) Intersil Corporation – Precision Single and Dual Low Noise Operational Amplifiers

Precision Single and Dual Low Noise Operational
Amplifiers
ISL28107 and ISL28207
The ISL28107 and ISL28207 are single and dual
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 single is available in an 8 Ld SOIC
package. The ISL28207 dual amplifier will be offered in
an 8 Ld SOIC package. All devices are offered in standard
pin configurations and operate over the extended
temperature range to -40°C to +125°C.
Features
• Low Input Offset . . . . . . . . . . . . . . . . 75µV, Max.
• Input Bias Current . . . . . . . . . . . . . . . . . . . .60pA
• 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*(see page 21)
• Precision Instruments
• Medical Instrumentation
• Spectral Analysis Equipment
• Geophysical Analysis Equipment
• Active Filter Blocks
• Microphone Pre-amplifier
• Thermocouples and RTD Reference Buffers
• Data Acquisition
• Power Supply Control
Typical Application
Input Noise Voltage Spectral
Density
V_IN
C₁
8.2nF
V₊
-
R₁
R₂
19.1k
48.7k
3.3nF
+
C₂
V_-
OUTPUT
Sallen-Key Low Pass Filter (1kHz)
1000
V₊ = ±19V
A_V = 1
100
10
0.1
1
10
100
1k
10k 100k
FREQUENCY (Hz)
November 16, 2009
FN6631.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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