LT1219是Precision Rail-to-Rail Input and Output Op Amp

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LT1219 - LT1219是Precision Rail-to-Rail Input and Output Op Amp

LT1219是Linear公司的一款精准放大器产品，LT1219是Precision Rail-to-Rail Input and Output Op Amp，本站介绍了LT1219的封装应用图解、特点和优点、功能等，并给出了与LT1219相关的凌力尔特元器件型号供参考。

LT1219 - Precision Rail-to-Rail Input and Output Op Amp

LT1219 - Precision Rail-to-Rail Input and Output Op Amp - Linear Technology（凌力尔特）

功能描述

The LT1218/LT1219 are bipolar op amps which combine rail-to-rail input and output operation with precision specifications. Unlike other rail-to-rail amplifiers, the LT1218/LT1219’s input offset voltage is a low 90µV across the entire rail-to-rail input range, not just a portion of it. Using a patented technique, both input stages of the LT1218/LT1219 are trimmed: one at the negative supply and the other at the positive supply. The resulting common mode rejection of 97dB minimum is much better than other rail-to-rail input op amps. A minimum open-loop gain of 500V/mV into a 10k load virtually eliminates all gain error. The LT1218 has conventional compensation which assures stability for capacitive loads of 1000pF or less. The LT1219 has compensation that requires the use of a 0.1µF output capacitor, which improves the amplifier’s supply rejection and reduces output impedance at high frequencies. The output capacitor’s filtering action also reduces high frequency noise, which is beneficial when driving A/D converters. High and low voltage versions of the devices are offered. Operation is specified for 3V, 5V and ±5V supplies for the LT1218L/LT1219L and 3V, 5V and ±15V for the LT1218/LT1219.

特点

Rail-to-Rail Input and Output

90µV VOS(MAX) for VCM = V- to V+

High Common Mode Rejection Ratio: 97dB

C-Load™ Stable Version (LT1219)

High AVOL: 500V/mV Minimum Driving 10kohms Load

Wide Supply Range: 2V to ±15V (LT1218/LT1219) 2V to ±5V (LT1218L/LT1219L)

Shutdown Mode: IS < 30µA

Low Supply Current: 420µA Max

Low Input Bias Current: 18nA Typical

300kHz Gain-Bandwidth Product (LT1218)

Slew Rate: 0.10V/µs (LT1218)