LT1457 Dual, Precision JFET Input Op Amp
The LT1457 is a dual, JFET input op amp optimized for handling large capacitive loads in combination with precision performance. Precision specifications include 220µV offset voltage in plastic and surface mount packages. At 70°C input bias current is 50pA, input offset current is 20pA. Channel separation is 130dB. Other dual JFET input op amps from linear Technology include the LT1057, which is three times faster than the LT1457 but at the expense of significantly lower capacitive load handling capability; and the LT1113 with 4.5nV/rt Hz voltage noise
产品特点 Features
- Handles 10,000pF Capacitive Load
- 450µV Max Offset Voltage
- 1200µV Max Offset Voltage in S8 Package
- 50pA Bias Current at 70°C
- 13nV/ rt Hz Voltage Noise
- 4V/µs Slew Rate
- 4µV/°C Drift
- 130dB Channel Separation
参数
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应用
- Sample-and-Hold (Drives Large Hold Capacitors)
- A/D and D/A Converters
- Photodiode Amplifiers
- Voltage-to-Frequency Converters
典型应用图
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LT1457 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) * |
| LT1457ACN8 |
PDIP |
8 |
C |
$4.17 |
$3.30 |
| LT1457ACN8#PBF |
PDIP |
8 |
C |
$4.17 |
$3.30 |
| LT1457CN8 |
PDIP |
8 |
C |
$2.50 |
$2.00 |
| LT1457CN8#PBF |
PDIP |
8 |
C |
$2.50 |
$2.00 |
| LT1457S8 |
SO |
8 |
C |
$2.67 |
$2.20 |
| LT1457S8#PBF |
SO |
8 |
C |
$2.67 |
$2.20 |
| LT1457S8#TR |
SO |
8 |
C |
|
$2.26 |
| LT1457S8#TRPBF |
SO |
8 |
C |
|
$2.26 |
LT1457 数据手册及相关资料下载
- 数据手册(英文) : LT1457 - Dual, Precision JFET Input Op Amp.PDF
- 设计要点 (英文) : DN107 - C-Load TM Op Amps Conquer Instabilities.PDF
- 设计要点 (英文) : DN140 - Updated Operational Amplifier Selection Guide for Optimum Noise Performance.PDF
- 设计要点 (英文) : DN83 - C-Load TM Op Amps Tame Instabilities.PDF
- 可靠性数据 : R040 Reliability Data .PDF
