ISL28110_11 Datasheet, PDF (1/25 Pages) Intersil Corporation – Precision Low Noise JFET Operational Amplifiers

Precision Low Noise JFET Operational Amplifiers
ISL28110, ISL28210
The ISL28110, ISL28210, are single and dual JFET amplifiers
featuring low noise, high slew rate, low input bias current and
offset voltage, making them the ideal choice for high
impedance applications where precision and low noise are
important. The combination of precision, low noise, and high
speed combined with a small footprint provides the user with
outstanding value and flexibility relative to similar competitive
parts.
Applications for these amplifiers include precision medical
and analytical instrumentation, sensor conditioning, precision
power supply controls, industrial controls and photodiode
amplifiers.
The ISL28110 single amplifier is available in the 8 Ld SOIC,
TDFN, and MSOP packages. The ISL28210 dual amplifier is
available in the 8 Ld SOIC and TDFN packages. All devices are
offered in standard pin configurations and operate over the
extended temperature range from -40°C to +125°C.
Features
• Wide Supply Range . . . . . . . . . . . . . . . . . . . . . . . . . . 9V to 40V
• Low Voltage Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6nV/√Hz
• Input Bias Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2pA
• High Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23V/µs
• High Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5MHz
• Low Input Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . 300µV, Max
• Offset Drift . . . . . . . . . . . . . . . . . . . . . . . . . . Grade C 10µV/°C
• Low Current Consumption . . . . . . . . . . . . . . . . . . . . . . 2.55mA
• Operating Temperature Range. . . . . . . . . . .-40°C to +125°C
• Small Package Offerings in Single, and Dual
• Pb-Free (RoHS compliant)
Applications
• Precision Instruments
• Photodiode Amplifiers
• High Impedance Buffers
• Medical Instrumentation
• Active Filter Blocks
• Industrial Controls
Related Literature
• AN1594 ISL28210SOICEVAL1Z Evaluation Board User’s
Guide
R_F
C_F
PHOTO
DIODE
R_SH
V₊
-
C_T
+
OUTPUT
V_-
BASIC APPLICATION CIRCUIT - PHOTODIODE AMPLIFIER
FIGURE 1. TYPICAL APPLICATION
10
V_S = ±15V
8
6
4
2
0
-2
-4
-6
-8
-10
-15
-10
-5
0
5
V_CM (V)
10
15
FIGURE 2. INPUT BIAS CURRENT vs COMMON MODE INPUT
VOLTAGE
September 14, 2011
1
FN6639.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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