LT1457是Dual, Precision JFET Input Op Amp

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LT1457 - LT1457是Dual, Precision JFET Input Op Amp

LT1457是Linear公司的一款精准放大器产品，LT1457是Dual, Precision JFET Input Op Amp，本站介绍了LT1457的封装应用图解、特点和优点、功能等，并给出了与LT1457相关的凌力尔特元器件型号供参考。

LT1457 - Dual, Precision JFET Input Op Amp

LT1457 - Dual, Precision JFET Input Op Amp - Linear Technology（凌力尔特）

功能描述

The LT1457 is a dual, JFET input op amp optimized for handling large capacitive loads in combination with precision performance.Precision specifications include 220µV offset voltage in plastic and surface mount packages. At 70°C input bias current is 50pA, input offset current is 20pA. Channel separation is 130dB.Other dual JFET input op amps from Linear Technology include the LT1057, which is three times faster than the LT1457 but at the expense of significantly lower capacitive load handling capability; and the LT1113 with 4.5nV/rt Hz voltage noise.

特点

Handles 10,000pF Capacitive Load

450µV Max Offset Voltage

1200µV Max Offset Voltage in S8 Package

50pA Bias Current at 70°C

13nV/ rt Hz Voltage Noise

4V/µs Slew Rate

4µV/°C Drift

130dB Channel Separation

应用

Sample-and-Hold (Drives Large Hold Capacitors)

A/D and D/A Converters

Photodiode Amplifiers

Voltage-to-Frequency Converters

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LT1457ACN8	N-8	C	$5.83	$4.60
LT1457ACN8#PBF	N-8	C	$5.83	$4.60
LT1457CN8	N-8	C	$3.00	$2.35
LT1457CN8#PBF	N-8	C	$3.00	$2.35
LT1457S8	SO-8	C	$3.17	$2.50
LT1457S8#PBF	SO-8	C	$3.17	$2.50
LT1457S8#TR	SO-8	C		$2.56
LT1457S8#TRPBF	SO-8	C		$2.56