LT1022 High Speed, Precision JFET Input Operational Amplifier

The LT™1022 JFET input operational amplifier combines high speed and precision performance.

A 26V/µs slew rate and 8.5MHz gain-bandwidth product are simultaneously achieved with offset voltage of typically 80µV, 1.5µV/°C drift, bias currents of 50pA at 70°C, 500pA at 125°C. The output delivers 20mA of load current without gain degradation.

The 250µV maximum offset voltage specification represents less than 1/2 least significant bit error in a 14-bit, 10V system.

The LT1022A meets or exceeds all OP-16A and OP-16E specifications. It is faster and more accurate without stability problems at cold temperatures.

The LT1022 can be used as the output amplifier for 12-bit current output D/A converters, as shown below.

For a more accurate, lower power dissipation, but slower JFET input op amp, please refer to the LT1055 data sheet

产品特点 Features

Guaranteed Slew Rate 23V/µs Min.
Guaranteed Offset Voltage 250µV Max
-55°C to 125°C 750µV Max.
Guaranteed Drift 5µV/°C Max.
Guaranteed Bias Current
70°C 180pA Max.
125°C 4nA Max.
Gain-Bandwidth Product: 8.5MHz Typ
Settling Time to 0.05% (10V Step): 0.9µs Typ

参数

应用

Fast D/A Output Amplifiers (12, 14, 16 Bits)
High Speed Instrumentation
Fast, Precision Sample and Hold
Voltage-to-Frequency Converters
Logarithmic Amplifiers

典型应用图

LT1022 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) *
LT1022AMH/883	METAL CAN	8	M		$71.91
LT1022CN8	PDIP	8	C	$3.33	$2.80
LT1022CN8#PBF	PDIP	8	C	$3.33	$2.80

LT1022 数据手册及相关资料下载

数据手册(英文) : LT1022 - High Speed, Precision JFET Input Operational Amplifier.PDF
应用指南 (英文) : AN18 - Power Gain Stages for Monolithic Amplifiers.PDF
应用指南 (英文) : AN21 - Composite Amplifiers.PDF
应用指南 (英文) : AN33 - Converting Light to Digits: LTC1099 Half Flash 8-Bit A/D Converter Digitizes Photodiode Array.PDF
应用指南 (英文) : AN43 - Bridge Circuits.PDF
应用指南 (英文) : AN48 - Using the LTC Op Amp Macromodels.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
设计要点 (英文) : DN67 - A 1mV Offset, Clock-Tunable, Monolithic 5-Pole Lowpass Filter.PDF
可靠性数据 : R108 Reliability Data .PDF