APPLICATIONS INFOR" />
參數(shù)資料
型號(hào): LT1465CS#PBF
廠商: Linear Technology
文件頁(yè)數(shù): 10/12頁(yè)
文件大?。?/td> 0K
描述: IC OP-AMP JFET INPUT QUAD 14SOIC
標(biāo)準(zhǔn)包裝: 55
系列: C-Load™
放大器類型: J-FET
電路數(shù): 4
轉(zhuǎn)換速率: 0.9 V/µs
增益帶寬積: 1MHz
電流 - 輸入偏壓: 0.5pA
電壓 - 輸入偏移: 600µV
電流 - 電源: 145µA
電壓 - 電源,單路/雙路(±): ±5 V ~ 15 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 14-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 14-SO
包裝: 管件
產(chǎn)品目錄頁(yè)面: 1318 (CN2011-ZH PDF)
7
LT1464/LT1465
APPLICATIONS INFORMATION
WU
U
Phase Reversal Protection
Most industry standard JFET input single, dual and quad
op amps exhibit phase reversal at the output when the
negative common mode limit at the input is exceeded.
Common mode range is at a premium at
±5Vsupplies.The
Figures show a
±5.2V sine wave input (Figure 1a), the
response of a competing JFET input op amp in the unity-
gain follower mode (Figure 1b) and the response of the
LT1464/LT1465 (Figure 1c).
The phase reversal of Figure 1b can cause lock-up in servo
systems. The LT1464/LT1465 does not phase-reverse
when the common mode input is anywhere within the
supplies.
(1a)
±5.2V Sine Wave
LT1464 F01a
LT1464 F01b
LT1464 F01c
Figure 1. Voltage Follower with Input Exceeding the Common Mode Range (VS = ±5V)
(1b) Typical JFET Input Op Amp
with
±5V Supplies
(1c) LT1464/LT1465 Output
with
±5V Supplies
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