LT1055 Precision, High Speed, JFET Input Operational Amplifiers

The LT1055/LT1056 JFET input operational amplifiers combine precision specifications with high speed performance.

For the first time, 16V/µs slew rate and 6.5MHz gain-bandwidth product are simultaneously achieved with offset voltage of typically 50µV, 1.2µV/°C drift, bias currents of 40pA at 70°C and 500pA at 125°C.

The 150µV maximum offset voltage specification is the best available on any JFET input operational amplifier.

The LT1055 and LT1056 are differentiated by their operating currents. The lower power dissipation LT1055 achieves lower bias and offset currents and offset voltage. The additional power dissipation of the LT1056 permits higher slew rate, bandwidth and faster settling time with a slight sacrifice in DC performance.

The voltage-to-frequency converter shown below is one of the many applications which utilize both the precision and high speed of the LT1055/LT1056.

For a JFET input op amp with 23V/µs guaranteed slew rate, refer to the LT1022 data sheet

产品特点 Features

Guaranteed Offset Voltage 150µV Max
-55°C to 125°C 500µV Max
Guaranteed Drift 4µV/°C Max
Guaranteed Bias Current
70°C : 150pA Max
125°C : 2.5nA Max
Guaranteed Slew Rate 12V/µs Min
Available in 8-Pin PDIP and SO Packages

参数

应用

Precision, High Speed Instrumentation
Logarithmic Amplifiers
D/A Output Amplifiers
Photodiode Amplifiers
Voltage-to-Frequency Converters
Frequency-to-Voltage Converters
Fast, Precision Sample-and-Hold

典型应用图

LT1055 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LT1055CN8	PDIP	8	C	$2.25	$1.90
LT1055CN8#PBF	PDIP	8	C	$2.25	$1.90
LT1055S8	SO	8	C	$2.67	$2.35
LT1055S8#PBF	SO	8	C	$2.67	$2.35
LT1055S8#TR	SO	8	C		$2.41
LT1055S8#TRPBF	SO	8	C		$2.41

LT1055 数据手册及相关资料下载

数据手册(英文) : LT1055/LT1056 - Precision, High Speed, JFET Input Operational Amplifiers.PDF
应用指南 (英文) : AN10 - Methods for Measuring Op Amp Settling Time.PDF
应用指南 (英文) : AN12 - Circuit Techniques for Clock Sources.PDF
应用指南 (英文) : AN18 - Power Gain Stages for Monolithic Amplifiers.PDF
应用指南 (英文) : AN43 - Bridge Circuits.PDF
设计要点 (英文) : DN140 - Updated Operational Amplifier Selection Guide for Optimum Noise Performance.PDF
设计要点 (英文) : DN15 - Noise Calculations in Op Amp Circuits.PDF
设计要点 (英文) : DN3 - Operational Amplifier Selection Guide for Optimum Noise Performance.PDF
设计要点 (英文) : DN6 - Operational Amplifier Selection Guide for Optimum Noise Performance.PDF
可靠性数据 : R040 Reliability Data .PDF
LT Journal : September 2009 - Consider New Precision Amplifiers for Updated Industrial Equipment Designs..PDF