ISL28227_15 Datasheet, PDF (1/27 Pages) Intersil Corporation – Precision Single and Dual Low Noise Operational Amplifiers

DATASHEET
Precision Single and Dual Low Noise Operational
Amplifiers
ISL28127, ISL28227
The ISL28127 and ISL28227 are very high precision amplifiers
featuring very low noise, low offset voltage, low input bias
current and low temperature drift making 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 ISL28127 single and ISL28227 dual are available in an 8
Ld SOIC, TDFN and MSOP packages. All devices are offered in
standard pin configurations and operate over the extended
temperature range to -40°C to +125°C.
Features
• Very Low Voltage Noise . . . . . . . . . . . . . . . . . . . . . . . .2.5nV/Hz
• Low Input Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70µV, Max.
• Superb Offset Drift. . . . . . . . . . . . . . . . . . . . . . 0.5µV/°C, Max.
• Input Bias Current . . . . . . . . . . . . . . . . . . . . . . . . . . 10nA, Max.
• Wide Supply Range . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 40V
• Gain-bandwidth Product . . . . . . . . . 10MHz Unity Gain Stable
• No Phase Reversal
Applications
• Precision Instruments
• Medical Instrumentation
• Industrial Controls
• Active Filter Blocks
• Data Acquisition
• Power Supply Control
Related Literature
• AN1508: ISL281x7SOICEVAL1Z Evaluation Board User’s
Guide
• AN1509: ISL282x7SOICEVAL1Z Evaluation Board User’s
Guide
V_IN
C₁
1.5nF
V₊
-
R₁
R₂
95.3
232
68.3nF
+
C₂
V_-
OUTPUT
Sallen-Key Low Pass Filter (1MHz)
FIGURE 1. TYPICAL APPLICATION
100
V_S = ±19V
A_V = 1
10
1
0.1
1
10
100
1k
FREQUENCY (Hz)
10k
100k
FIGURE 2. INPUT NOISE VOLTAGE SPECTRAL DENSITY
September 10, 2015
1
FN6633.7
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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