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ISL28134 Datasheet (HTML) - Intersil Corporation

Part No. ISL28134
Description  5V Ultra Low Noise, Zero Drift Rail-to-Rail Precision Op Amp
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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5V Ultra Low Noise, Zero Drift Rail-to-Rail Precision Op
Amp
ISL28134
The ISL28134 is a single, chopper-stabilized zero-drift
operational amplifier optimized for single and dual supply
operation from 2.25V to 6.0V and ±1.125V and ±3.0V. The
ISL28134 features very low input offset voltage and low noise
with no 1/f noise corner down to 0.1Hz. The ISL28134 is
designed to have ultra low offset voltage and offset temperature
drift, wide gain bandwidth and rail-to-rail input/output swing
while minimizing power consumption.
This amplifier is ideal for amplifying the sensor signals of analog
front-ends that include pressure, temperature, medical, strain
gauge and inertial sensors.
The ISL28134 can be used over standard amplifiers with high
stability over the industrial temperature range of -40°C to
+85°C. The ISL28134 is available in an industry standard pinout
SOIC package.
Applications
• Medical Instrumentation
•Sensor Gain Amps
• Precision Low Drift, Low Frequency ADC Drivers
• Precision Voltage Reference Buffers
• Thermopile, Thermocouple, and other Temperature Sensors
Front-end Amplifiers
• Inertial Sensors
• Process Control Systems
• Weight Scales and Strain Gauge Sensors
Features
• Rail-to-Rail Inputs and Outputs
- CMRR @ VCM = 0.1V beyond VS . . . . . . . . . . . . .135dB, typ.
-VOH and VOL . . . . . . . . . . . . . . . . . . . . . . 10mV from VS, typ.
• No 1/f Noise Corner Down to 0.1Hz
- Input Noise Voltage . . . . . . . . . . . . . . . . .10 nV/
√Hz @ 1kHz
- 0.1Hz to 10Hz Noise Voltage . . . . . . . . . . . . . . . . 250nVP-P
• Low Offset Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5µV, Max
• Superb Offset Drift. . . . . . . . . . . . . . . . . . . . . . . 15nV/°C, Max
• Single Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.25V to 6.0V
• Dual Supply . . . . . . . . . . . . . . . . . . . . . . . . . ±1.125V to ±3.0V
•Low ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .675µA, typ.
• Wide Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5MHz
•Operating Temperature Range
- Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
-Full Industrial (Coming Soon) . . . . . . . . . .-40°C to +125°C
•Packaging
- Single: SOIC, SOT-23, µTDFN (1.6mmx1.6mm)
Related Literature
• See AN1641, “ISL28134 Evaluation Board Manual”
• See AN1560, “Making Accurate Voltage Noise and Current
Noise Measurements on Operational Amplifiers Down to
0.1Hz”
FIGURE 1. TYPICAL APPLICATION
100
1MΩ
+
-
GND
100
ANALOG
1MΩ
VOUT
3V
HIGH GAIN AMPLIFIER
AV = 10,000 V/V
0.1µ
RL
SINGLE SUPPLY
SENSOR INPUT
FIGURE 2. VOS HISTOGRAM VS = 5V
-2.0 -1.5 -1.0 -0.5
-2.5
0
200
400
600
800
1000
1200
0
0.5
1.0
1.5
2.0
2.5
1400
VOS (µV)
Vs = ±2.5V
N = 2330
VCM = 0V
T = -40°C to +85°C
June 8, 2011
FN6957.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|Copyright Intersil Americas Inc. 2011. 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.



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