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LT1793ACN8#PBF

厂商:
Linear
类别:
低偏置电流放大器
包装:
-
封装:
PDIP
无铅情况/ROHS:
无铅
描述:
Low Noise, Picoampere Bias Curren...

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  • 参数
  • 描述
  • 文档
参数 数值
Inoise (pA/rtHz) 0.0008
Vs Max (V) 40
Enoise Density (nV/rtHz) 6
Temp Range C,I
Vos TC (uV/C) 5
VinCM Low (from V-) (V) 4
Channels (#) 1
Avol (V/mV) 4500
Single Supply (yes/no) no
Av Min Stable (V/V) 1
Cload (pF) 10000
Rail-to-Rail Out (yes/no) no
Iout (mA) 27
LF Enoise (uVpp) 2.4
Shutdown (yes/no) no
Featured no
Rail-to-Rail In (yes/no) no
Type JFET
CMRR (dB) 102
PSRR (dB) 98
Vs Min (V) 10
Vol (from V-) (V) 1.8
Vos (mV) 0.25 (0.8)
New no
Ibias (pA) 3 (10)
Ts (0.1%) (ns)
Over-the-Top (yes/no) no
Is (mA) 4.2
Packages DIP-8,SO-8
GBW (MHz) 4.2 (2.5)
SR (V/us) 3.4
Voh (from V+) (V) 1.8
VinCM High (from V+) (V) 1.5
Av Min (V/V)
Av Max (V/V)
Gain Accuracy (%)
Gain Drift (ppm/C)
Comments FET Input, Precision, Low Distortion
Date Added 1984-01-01
Price 1k * $2.25 (LT1793CN8)

特点
Input Bias Current, Warmed Up: 10pA Max
100% Tested Low Voltage Noise: 8nV/rtHz Max
A Grade 100% Temperature Tested
Offset Voltage Over Temp: 1mV Max
nput Resistance: 10 13 ohms
Very Low Input Capacitance: 1.5pF
Voltage Gain: 1 Million Min
Gain-Bandwidth Product: 4.2MHz Typ
Guaranteed Specifications with ±5V Supplies

典型应用

典型应用

描述
描述 The LT?1793 achieves a new standard of excellence in noise performance for a JFET op amp. For the first time low voltage noise (6nV/rtHz) is simultaneously offered with extremely low current noise (0.8fA/rtHz), providing the lowest total noise for high impedance transducer applications. Unlike most JFET op amps, the very low input bias current (3pA typ) is maintained over the entire common mode range which results in an extremely high input resistance (10 13 ohms). When combined with a very low input capacitance (1.5pF) an extremely high input impedance results, making the LT1793 the first choice for amplifying low level signals from high impedance transducers. The low input capacitance also assures high gain linearity when buffering AC signals from high impedance transducers. The LT1793 is unconditionally stable for gains of 1 or more, even with 1000pF capacitive loads. Other key features are 250μV VOS and a voltage gain over 4 million. Each individual amplifier is 100% tested for voltage noise, slew rate (3.4V/μs) and gain-bandwidth product (4.2MHz). Specifications at ±5V supply operation are also provided. For an even lower voltage noise please see the LT1792 data sheet.

设计要点 (英文)
文档名称 文档类型 软件 描述
LT1793ACN8#PBFPDF下载 点击下载 点击下载 DN15 - Noise Calculations in Op Amp Circuits
LT1793ACN8#PBFPDF下载 点击下载 点击下载 DN140 - Updated Operational Amplifier Selection Guide for Optimum Noise Performance
LT1793ACN8#PBFPDF下载 点击下载 点击下载 DN3 - Operational Amplifier Selection Guide for Optimum Noise Performance
LT1793ACN8#PBFPDF下载 点击下载 点击下载 DN6 - Operational Amplifier Selection Guide for Optimum Noise Performance
应用指南 (英文)
文档名称 文档类型 软件 描述
LT1793ACN8#PBFPDF下载 点击下载 点击下载 AN57 - Video Circuit Collection
LT1793ACN8#PBFPDF下载 点击下载 点击下载 AN43 - Bridge Circuits
LT1793ACN8#PBFPDF下载 点击下载 点击下载 AN48 - Using the LTC Op Amp Macromodels
LT1793ACN8#PBFPDF下载 点击下载 点击下载 AN21 - Composite Amplifiers
LT1793ACN8#PBFPDF下载 点击下载 点击下载 AN45 - Measurement and Control Circuit Collection
数据表 (英文)
文档名称 文档类型 软件 描述
LT1793ACN8#PBFPDF下载 点击下载 点击下载 LT1028 - Ultra Low Noise Precision High Speed Op Amps
LT Journal
文档名称 文档类型 软件 描述
LT1793ACN8#PBFPDF下载 点击下载 点击下载 September 1999 - JFET Op Amps Equal Low Noise Bipolars and Have Picoamp Current Noise
LT1793ACN8#PBFPDF下载 点击下载 点击下载 September 2009 - Consider New Precision Amplifiers for Updated Industrial Equipment Designs
LT1793ACN8#PBFPDF下载 点击下载 点击下载 Sep 2000 Performance Verification of Low Noise, Low Dropout Regulators