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.

特点
  • 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 Current70°C 180pA Max.125°C 4nA Max.
  • Gain-Bandwidth Product: 8.5MHz Typ
  • Settling Time to 0.05% (10V Step): 0.9µs Typ
典型应用
LT1022 Typical Application
LT1022 Typical Application
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
封装信息
LT1022 Package Drawing
Order Information 订购型号
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) *
LT1022AMH/883TO-5M$71.91
LT1022CN8#PBFN-8C$3.33$2.80
演示电路板
器件型号描述价格
DC417BDIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp$25.00
数据表
应用指南
设计要点
可靠性数据
CAD 符号
相关产品
LT1022 - High Speed, Precision JFET Input Operational Amplifier
AN18 - Power Gain Stages for Monolithic Amplifiers
AN21 - Composite Amplifiers
AN33 - Converting Light to Digits: LTC1099 Half Flash 8-Bit A/D Converter Digitizes Photodiode Array
AN43 - Bridge Circuits
AN48 - Using the LTC Op Amp Macromodels
DN140 - Updated Operational Amplifier Selection Guide for Optimum Noise Performance
DN15 - Noise Calculations in Op Amp Circuits
DN3 - Operational Amplifier Selection Guide for Optimum Noise Performance
DN6 - Operational Amplifier Selection Guide for Optimum Noise Performance
DN67 - A 1mV Offset, Clock-Tunable, Monolithic 5-Pole Lowpass Filter
R108 Reliability Data
LT1022 Footprints and Symbols