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ISL28134IBZ 数据表(PDF) 1 Page - Intersil Corporation |
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ISL28134IBZ 数据表(HTML) 1 Page - Intersil Corporation |
1 / 25 page 1 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 uses auto-correction circuitry to provide very low input offset voltage, drift and a reduction of the 1/f noise corner below 0.1Hz. The ISL28134 achieves ultra low offset voltage, offset temperature drift, wide gain bandwidth and rail-to-rail input/output swing while minimizing power consumption. The ISL28134 is ideal for amplifying the sensor signals of analog front-ends that include pressure, temperature, medical, strain gauge and inertial sensors down to the µV levels. The ISL28134 can be used over standard amplifiers with high stability over the industrial temperature range of -40°C to +85°C and the full industrial temperature range of -40°C to +125°C. The ISL28134 is available in an industry standard pinout SOIC and SOT-23 packages. 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 . . . . . . . . . . . . . . . . . . . . . . .-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. PRECISION 10-BIT WEIGH SCALE/STRAIN GAUGE 100 20kΩ + - 100 1MΩ VOUT CL BRIDGE SENSOR RL ISL21010 3.3V VREF +5V ISL28134 +3.3V 5mV/V 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 = 2796 VCM = 0V T = -40°C to +125°C 1600 December 22, 2011 FN6957.3 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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