LTC1049 Low Power Zero-Drift Operational Amplifier with Internal Capacitors

The LTC1049 is a high performance, low power zero-drift operational amplifier. The two sample-and-hold capacitors usually required externally by other chopper stabilized amplifiers are integrated on the chip. Further, the LTC1049 offers superior DC and AC performance with a nominal supply current of only 200µA.

The LTC1049 has a typical offset voltage of 2µV, drift of 0.02µV/°C, 0.1Hz to 10Hz input noise voltage of 3µVP-P and typical voltage gain of 160dB. The slew rate is 0.8V/µs with a gain bandwidth product of 0.8MHz.

Overload recovery time from a saturation condition is 6ms, a significant improvement over chopper amplifiers using external capacitors.

The LTC1049 is available in a standard 8-pin plastic dual in line, as well as an 8-pin SO package. The LTC1049 can be a plug-in replacement for most standard op amps with improved DC performance and substantial power savings

产品特点 Features

Low Supply Current: 200µA
No External Components Required
Maximum Offset Voltage: 10µV
Maximum Offset Voltage Drift: 0.1µV/°C
Single Supply Operation: 4.75V to 16V
Input Common Mode Range Includes Ground
Output Swings to Ground
Typical Overload Recovery Time: 6ms
Available in 8-Pin SO and PDIP Packages

参数

应用

4mA to 20mA Current Loops
Thermocouple Amplifiers
Electronic Scales
Medical Instrumentation
Strain Gauge Amplifiers
High Resolution Data Acquisition

典型应用图

LTC1049 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) *
LTC1049CN8	PDIP	8	C	$2.70	$2.15
LTC1049CN8#PBF	PDIP	8	C	$2.70	$2.15
LTC1049CS8	SO	8	C	$3.35	$2.70
LTC1049CS8#PBF	SO	8	C	$3.35	$2.70
LTC1049CS8#TR	SO	8	C		$2.76
LTC1049CS8#TRPBF	SO	8	C		$2.76

LTC1049 数据手册及相关资料下载

数据手册(英文) : LTC1049 - Low Power Zero-Drift Operational Amplifier with Internal Capacitors.PDF
应用指南 (英文) : AN52 - linear Technology Magazine Circuit Collection, Volume 1.PDF
可靠性数据 : R062 Reliability Data .PDF