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.

特点
  • 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
典型应用
LTC1050 Typical Application
LTC1050 Typical Application
应用
  • Thermocouple Amplifiers
  • Electronic Scales
  • Medical Instrumentation
  • Strain Gauge Amplifiers
  • High Resolution Data Acquisition
  • DC Accurate R, C Active Filters
封装信息
LTC1050 Package Drawing
LTC1050 Package Drawing
LTC1050 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) *
LTC1050ACN8#PBFN-8C$4.60$3.75
LTC1050CN#PBFN-14C$2.70$2.15
LTC1050CN8#PBFN-8C$2.70$2.15
LTC1050CS8#PBFSO-8C$3.35$2.70
LTC1050CS8#TRPBFSO-8C$2.76
LTC1050HS8#PBFSO-8H$4.00$3.24
LTC1050HS8#TRPBFSO-8H$3.30
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
LT Journal
CAD 符号
相关产品
LTC1050 - Precision Zero-Drift Operational Amplifier with Internal Capacitors
AN20 - Application Considerations for an Instrumentation Lowpass Filter
AN28 - Thermocouple Measurement
AN48 - Using the LTC Op Amp Macromodels
AN67 - Linear Technology Magazine Circuit Collection, Volume III
AN78 - A Collection of Differential to Single-Ended Signal Conditioning Circuits for Use with the LTC2400, a 24-Bit No Latency Delta Sigma ADC in an SO-8
Design Solutions 1 - LTC2400 High Accuracy Differential to Single-Ended Differential to Single-Ended Converter Has Very High Uncalibrated Accuracy and Low Offset and Drift
Design Solutions 4 - High Accuracy, Differential to Single-Ended Conversion for Wide Range Bipolar Input Signals Bipolar Differential to Single-Ended Converter Drives the LTC2400's Input Rail-to-Rail
Design Solutions 6 - LTC2400 Differential to Single-Ended Converter for Single 5V Supply This Converter Has High Accuracy, Very Low Offset and Offset Drift, Rail-to-Rail Input Common Mode Range and is Live at Zero
DN207 - LTC2400 High Accuracy Differential to Single-Ended Converter for ±5V Supplies
DN219 - 24-Bit ADC Measures from DC to Daylight
DN36 - Ultra Low Noise Op Amp Combines Chopper and Bipolar Op Amps
DN42 - Chopper vs Bipolar Op Amps—An Unbiased Comparison
DN5 - Temperature Measurement Using Data Acquisition Systems
DN9 - Chopper Amplifiers Complement a DC Accurate Low-Pass Filter
R062 Reliability Data
Jun 1999 LTC2400 Differential Bridge Digitizers
September 2009 - Consider New Precision Amplifiers for Updated Industrial Equipment Designs
LTC1050 Footprints and Symbols