LT1169 Dual Low Noise, Picoampere Bias Current, JFET Input Op Amp
The LT1169 achieves a new standard of excellence in noise performance for a dual JFET op amp. For the first time low voltage noise (6nV/rtHz) is simultaneously offered with extremely low current noise (1fA/rtHz), providing the lowest total noise for high impedance transducer applications. Unlike most JFET op amps, the very low input bias current (5pA Typ) is maintained over the entire common mode range which results in an extremely high input resistance (1013ohms). When combined with a very low input capacitance (1.5pF) an extremely high input impedance results, making the LT1169 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 LT1169 is unconditionally stable for gains of 1 or more, even with 1000pF capacitive loads. Other key features are 0.6mV VOS and a voltage gain over 4 million. Each individual amplifier is 100% tested for voltage noise, slew rate (4.2V/µs), and gain-bandwidth product (5.3MHz). The LT1169 is offered in the S8 and N8 packages. A full set of matching specifications are provided for precision instrumentation amplifier front ends. Specifications at ±5V supply operation are also provided. For an even lower voltage noise please see the LT1113 data sheet
产品特点 Features
- Input Bias Current, Warmed Up: 20pA Max
- 100% Tested Low Voltage Noise: 8nV/rtHz Max
- S8 and N8 Package Standard Pinout
- Very Low Input Capacitance: 1.5pF
- Voltage Gain: 1.2 Million Min
- Offset Voltage: 2mV Max
- Input Resistance: 1013ohms
- Gain-Bandwidth Product: 5.3MHz Typ
- Guaranteed Specifications with ±5V Supplies
- Guaranteed Matching Specifications
参数
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应用
- Photocurrent Amplifiers
- Hydrophone Amplifiers
- High Sensitivity Piezoelectric Accelerometers
- Low Voltage and Current Noise Instrumentation Amplifier Front Ends
- Two and Three Op Amp Instrumentation Amplifiers
- Active Filters
典型应用图
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LT1169 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) * |
| LT1169CN8 |
PDIP |
8 |
C |
$4.83 |
$3.85 |
| LT1169CN8#PBF |
PDIP |
8 |
C |
$4.83 |
$3.85 |
| LT1169CS8 |
SO |
8 |
C |
$5.00 |
$4.10 |
| LT1169CS8#PBF |
SO |
8 |
C |
$5.00 |
$4.10 |
| LT1169CS8#TR |
SO |
8 |
C |
|
$4.16 |
| LT1169CS8#TRPBF |
SO |
8 |
C |
|
$4.16 |
LT1169 数据手册及相关资料下载
- 数据手册(英文) : LT1169 - Dual Low Noise, Picoampere Bias Current, JFET Input Op Amp.PDF
- 设计要点 (英文) : DN140 - Updated Operational Amplifier Selection Guide for Optimum Noise Performance.PDF
- 设计要点 (英文) : DN84 - Source Resistance Induced Distortion in Op Amps.PDF
- 可靠性数据 : R172 Reliability Data .PDF
- LT Journal : September 2009 - Consider New Precision Amplifiers for Updated Industrial Equipment Designs.PDF
