LT1002 Dual, Matched Precision Operational Amplifier

Most H (Metal Can), J (Ceramic), and K (Metal Can) Packages from linear Technology Are Now Obsolete

The LT®1002 dual, matched precision operational amplifiers combine excellent individual amplifier performance with tight matching and temperature tracking between amplifiers.

In the design, processing, and testing of the device, particular attention has been paid to the optimization of the entire distribution of several key parameters and their matching. Consequently, the specifications of even the low cost commercial grade (LT1002C) have been spectacularly improved compared to presently available devices. Essentially, the input offset voltage of all units is less than 80µV, and matching between amplifiers is consistently beter than 60µV (see distribution plot below). Input bias and offset currents, channel separation, common mode and power suply rejections of the LT1002C are all specified at levels which were previsouly attainable only on very expensive, selected grades of other dual devices. Power dissipation is nearly halved compared to the most popular precision duals, without adversely affecting noise or speed performance. A by-product of lower dissipation is decreased warm-up drift. For even better performance in a single precision op amp, refer to the LT1001 data sheet. A bridge signal conditioning application is shown below. This circuit illustrates the requirement for both excellent matching and individual amplifier specifications

产品特点 Features

Guaranteed low offset voltage
LT1002A 60µV max
LT1002 100µV max
Guaranteed offset voltage match
LT1002A 40µV max
LT1002 80µV max
Guaranteed low drift
LT1002A 0.9µV/°C max
LT1002 1.3µV/°C max
Guaranteed CMRR
LT1002A 110dB min
LT1002 110dB min
Guaranteed channel separation
LT1002A 132dB min
LT1002 130dB min
Guaranteed matching characteristics
Low noise 0.35µVP-P

应用

Thermocouple Amplifiers
Strain Gauge Amplifiers
Low level signal processing
Medical instrumentation
Precision dual limit threshold detection
Instrumentation amplifiers

典型应用图

参数

LT1002 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) *
LT1002ACN	PDIP	14	C	$7.50	$6.10
LT1002ACN#PBF	PDIP	14	C	$7.50	$6.10
LT1002CN	PDIP	14	C	$3.50	$2.85
LT1002CN#PBF	PDIP	14	C	$3.50	$2.85

LT1002 数据手册及相关资料下载

数据手册(英文) : LT1002 - Dual, Matched Precision Operational Amplifier.PDF
应用指南 (英文) : AN13 - High Speed Comparator Techniques.PDF
应用指南 (英文) : AN5 - Thermal Techniques in Measurement and Control Circuitry.PDF
应用指南 (英文) : AN6 - Applications of New Precision Op Amps.PDF
设计要点 (英文) : DN140 - Updated Operational Amplifier Selection Guide for Optimum Noise Performance.PDF
设计要点 (英文) : DN56 - 3V Operation of linear Technology Op Amps.PDF
可靠性数据 : R007 Reliability Data .PDF