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ISL28134：零漂移軌對軌放大器概述

作者： 時間：2013-09-09 來源：網(wǎng)絡(luò) 收藏
全新5V超低噪聲、斬波穩(wěn)定式零漂移軌對軌放大器---ISL28134能在與競爭對手放大器耗電量類似情況下，將噪聲降低一半，進(jìn)一步擴(kuò)展了Intersil精密運算放大器產(chǎn)品系列。
對于壓力、溫度、醫(yī)療、應(yīng)變計和慣性傳感器的模擬前端的微小信號放大來說，ISL28134是卓越的設(shè)計選擇。該產(chǎn)品可在24位delta sigma型模數(shù)轉(zhuǎn)換器（ADC）之前提供放大作用，是低噪聲儀表系統(tǒng)的理想選擇。

The ISL28134 is a single, chopper-stabilized Zero-Driftoperational amplifier optimized for single and dual supplyoperation from 2.25V to 6.0V and ±1.125V and ±3.0V. TheISL28134 uses auto-correction circuitry to provide very low inputoffset voltage, drift and a reduction of the 1/f noise corner below0.1Hz. The ISL28134 achieves ultra low offset voltage, offsettemperature drift, wide gain bandwidth and rail-to-railinput/output swing while minimizing power consumption.

本文引用地址：http://butianyuan.cn/article/258519.htm

The ISL28134 is ideal for amplifying the sensor signals of analogfront-ends that include pressure, temperature, medical, straingauge and inertial sensors down to the μV levels.The ISL28134 can be used over standard amplifiers with highstability over the industrial temperature range of -40°C to +85°Cand the full industrial temperature range of -40°C to +125°C.The ISL28134 is available in an industry standard pinout SOICand SOT-23 packages.

應(yīng)用信息

  • 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

特性：

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 . . . . . . . . . . . . . . . . . . . . . . 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

封裝：

Single: SOIC, SOT-23, UTDFN (1.6mmx1.6mm)

關(guān)鍵詞： ISL28134 軌對軌放大器

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