LTC1050 Precision Zero-Drift Operational Amplifier with Internal Capacitors

The LTC®1050 is a high performance, low cost zero-drift operational amplifier. The unique achievement of the LTC1050 is that it integrates on-chip the two sample-and-hold capacitors usually required externally by other chopper amplifiers. Further, the LTC1050 offers better combined overall DC and AC performance than is available from other chopper stabilized amplifiers with or without internal sample-and-hold capacitors.

The LTC1050 has an offset voltage of 0.5µV, drift of 0.01µV/°C, DC to 10Hz, input noise voltage of 1.6µVP-P and a typical voltage gain of 160dB. The slew rate of 4V/µs and a gain bandwidth product of 2.5MHz are achieved with only 1mA of supply current.

Overload recovery times from positive and negative saturation conditions are 1.5ms and 3ms respectively, which represents an improvement of about 100 times over chopper amplifiers using external capacitors. Pin 5 is an optional external clock input, useful for synchronization purposes.

The LTC1050 is available in standard 8-pin metal can, plastic and ceramic dual-in-line packages as well as an SO-8 package. The LTC1050 can be an improved plug-in replacement for most standard op amps

产品特点 Features

No External Components Required
Noise Tested and Guaranteed
Low Aliasing Errors
Maximum Offset Voltage 5µV
Maximum Offset Voltage Drift 0.5µV/°C
Low Noise 1.6µVp-p (0.1Hz to 10Hz)
Minimum Voltage Gain, 130dB
Minimum PSRR, 125dB
Minimum CMRR, 120dB
Low Supply Current 1mA
Single Supply Operation 4.75V to 16V
Input Common Mode Range Includes Ground
Output Swings to Ground
Typical Overload Recovery Time 3ms

参数

应用

Thermocouple Amplifiers
Electronic Scales
Medical Instrumentation
Strain Gauge Amplifiers
High Resolution Data Acquisition
DC Accurate R, C Active Filters

典型应用图

LTC1050 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) *
LTC1050ACN8	PDIP	8	C	$4.60	$3.75
LTC1050ACN8#PBF	PDIP	8	C	$4.60	$3.75
LTC1050AMJ8/883	CERDIP	8	M		$61.50
LTC1050CN	PDIP	14	C	$2.70	$2.15
LTC1050CN#PBF	PDIP	14	C	$2.70	$2.15
LTC1050CN8	PDIP	8	C	$2.70	$2.15
LTC1050CN8#PBF	PDIP	8	C	$2.70	$2.15
LTC1050CS8	SO	8	C	$3.35	$2.70
LTC1050CS8#PBF	SO	8	C	$3.35	$2.70
LTC1050CS8#TR	SO	8	C		$2.76
LTC1050CS8#TRPBF	SO	8	C		$2.76
LTC1050HS8	SO	8	H	$4.00	$3.24
LTC1050HS8#PBF	SO	8	H	$4.00	$3.24
LTC1050HS8#TR	SO	8	H		$3.30
LTC1050HS8#TRPBF	SO	8	H		$3.30
LTC1050MJ8/883	CERDIP	8	M		$54.95

LTC1050 数据手册及相关资料下载

数据手册(英文) : LTC1050 - Precision Zero-Drift Operational Amplifier with Internal Capacitors.PDF
应用指南 (英文) : AN20 - Application Considerations for an Instrumentation Lowpass Filter.PDF
应用指南 (英文) : AN28 - Thermocouple Measurement.PDF
应用指南 (英文) : AN48 - Using the LTC Op Amp Macromodels.PDF
应用指南 (英文) : AN67 - linear Technology Magazine Circuit Collection, Volume III.PDF
设计要点 (英文) : DN207 - LTC2400 High Accuracy Differential to Single-Ended Converter for ±5V Supplies.PDF
设计要点 (英文) : DN219 - 24-Bit ADC Measures from DC to Daylight.PDF
设计要点 (英文) : DN36 - Ultra Low Noise Op Amp Combines Chopper and Bipolar Op Amps.PDF
设计要点 (英文) : DN5 - Temperature Measurement Using the LTC1090/91/92 Series of Data Acquisition Systems.PDF
设计要点 (英文) : DN9 - Chopper Amplifiers Complement a DC Accurate Low-Pass Filter.PDF
可靠性数据 : R062 Reliability Data .PDF
LT Journal : Jun 1999 LTC2400 Differential Bridge Digitizers.PDF
LT Journal : September 2009 - Consider New Precision Amplifiers for Updated Industrial Equipment Designs.PDF