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| 型號： | LT1014IN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | CAP: CERAMIC CHIP, 2.2UF, +/- 10% (OR BETTER), 10V |
| 中文描述： | QUAD OP-AMP, 400 uV OFFSET-MAX, PDIP14 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-14 |
| 文件頁數(shù)： | 18/30頁 |
| 文件大?。?/td> | 631K |
| 代理商： | LT1014IN |
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LT1014, LT1014A, LT1014D
QUAD PRECISION OPERATIONAL AMPLIFIERS
SLOS039C – JULY 1989 – REVISED SEPTEMBER 1999
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
single-supply operation
The LT1014 is fully specified for single-supply operation (V
CC–
= 0). The common-mode input voltage range
includes ground, and the output swings within a few millivolts of ground.
Furthermore, the LT1014 has specific circuitry that addresses the difficulties of single-supply operation, both
at the input and at the output. At the input, the driving signal can fall below 0 V, either inadvertently or on a
transient basis. If the input is more than a few hundred millivolts below ground, the LT1014 is designed to deal
with the following two problems that can occur:
1.
On many other operational amplifiers, when the input is more than a diode drop below ground, unlimited
current flows from the substrate (V
CC–
terminal) to the input, which can destroy the unit. On the LT1014,
the 400-
resistors in series with the input (see schematic) protect the device even when the input is 5 V
below ground.
2.
When the input is more than 400 mV below ground (at T
A
= 25
°
C), the input stage of similar type operational
amplifiers saturates, and phase reversal occurs at the output. This can cause lockup in servo systems.
Because of unique phase-reversal protection circuitry (Q21, Q22, Q27, and Q28), the LT1014 outputs do
not reverse, even when the inputs are at –1.5 V (see Figure 24).
However, this phase-reversal protection circuitry does not function when the other operational amplifier on the
LT1014 is driven hard into negative saturation at the output. Phase-reversal protection does not work on an
amplifier:
When 4’s output is in negative saturation (the outputs of 2 and 3 have no effect)
When 3’s output is in negative saturation (the outputs of 1 and 4 have no effect)
When 2’s output is in negative saturation (the outputs of 1 and 4 have no effect)
When 1’s output is in negative saturation (the outputs of 2 and 3 have no effect)
At the output, other single-supply designs either cannot swing to within 600 mV of ground or cannot sink more
than a few microproamperes while swinging to ground. The all-npn output stage of the LT1014 maintains its low
output resistance and high gain characteristics until the output is saturated. In dual-supply operations, the output
stage is free of crossover distortion.
(a) VI(PP) = –1.5 V to 4.5 V
(b) Output Phase Reversal
Exhibited by LM358
(c) No Phase Reversal
Exhibited by LT1014
–
V
I
–
V
O
–
V
O
5
4
3
2
1
0
–1
–2
5
4
3
2
1
0
–1
5
4
3
2
1
0
–1
Figure 24. Voltage-Follower Response
With Input Exceeding the Negative Common-Mode Input Voltage Range
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1014DS | 10 UF,16V,20%,0805,ROHS |
| LT1014DN | Quad Precision Op Amp |
| LT1014 | Quad Precision Op Amp |
| LT102 | LT Series: 25/30 WATT Wide Input Range |
| LT1028ESA | Voltage-Feedback Operational Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1014IN#PBF | 功能描述:IC PRECISION OP-AMP QUAD 14-DIP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:13 V/µs 增益帶寬積:3MHz -3db帶寬:- 電流 - 輸入偏壓:65pA 電壓 - 輸入偏移:3000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| LT1014IN | 制造商:Linear Technology 功能描述:OP AMP QUAD PRECISION 1014 DIP14 |
| LT1014IN.#PBF | 制造商:Linear Technology 功能描述:OP AMP QUAD PRECISION 1014 DIP14 制造商:Linear Technology 功能描述:OP AMP, QUAD PRECISION, 1014, DIP14 |
| LT1014INPBF | 制造商:Linear Technology 功能描述:Operational Amplifier Quad Prec. PDIP14 |
| LT1014IS | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Quad Precision Op Amp |
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