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參數(shù)資料
| 型號： | BUF04GBC |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Closed-Loop High Speed Buffer |
| 中文描述： | BUFFER AMPLIFIER, UUC6 |
| 封裝： | 0.075 X 0.064 INCH, DIE-6 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 437K |
| 代理商： | BUF04GBC |
BUF04
REV. 0
–12–
Operation Within an Op Amp Feedback Loop
The BUF04 is well suited as a current booster or isolation
buffer within the closed loop of precision op amps such as the
OP177, the OP97, the OP27, or the OP77. Since the BUF04 is
a closed loop voltage buffer, no interstage coupling resistor
between the op amp and the buffer’s input is required for circuit
stability. The wide bandwidth and high slew rate of the BUF04
assure that the loop has the characteristics of the op amp; hence,
no additional rolloff is required.
BUF04
6
3
R
L
500
OP177
V
IN
3
R2
R1
100
2
C
1000pF
6
GAIN
10
100
1000
R2 (k
)
1
10
100
V
OUT
Figure 38. BUF04 as Booster Stage for a Precision Op Amp
Paralleling BUF04s for Increased Load Drive Capability
In applications where continuous output currents greater than
50 mA are required or where heat management is an issue, a
number of BUF04s can be connected in parallel to reduce the
drive requirement of any one buffer. An example of one such
application is illustrated in Figure 39. In this circuit, the
BUF04s are required to drive a doubly terminated 50
line to
±
5 V. This type of a load for a single BUF04 would certainly
cause a power dissipation problem. Parallel operation results in
lower input and output impedances and increased bias currents;
on the other hand, input equivalent noise voltage is reduced and
input offset voltage remains unchanged.
V
IN
±10V
R
L
50
V
OUT
3
R3
100
R1
47
6
BUF04
R
S
50
3
R2
47
6
BUF04
±5V
R4
100
Figure 39. Paralleling BUF04s for High Output Currents
Overdrive Recovery and Phase Reversal
In applications where the inputs could be driven to the supply
rails, the BUF04 recovers in 10 ns from positive or negative
overdrive. The BUF04 does not exhibit any output voltage
phase reversal when the input signal exceeds its input voltage
range.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BUF04GP | 制造商:Analog Devices 功能描述:IC AMP BUFFER HIGH SPEED DIP8 |
| BUF04GS | 制造商:AD 制造商全稱:Analog Devices 功能描述:Closed-Loop High Speed Buffer |
| BUF05703 | 制造商:BB 制造商全稱:BB 功能描述:MULTI-CHANNEL LEC GAMMA CORRECTION BUFFER |
| BUF05703PW | 功能描述:LCD Gamma緩沖器 4 Ch LCD Gamma Crction Buffer +Vcom RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF05703PWG4 | 功能描述:LCD Gamma緩沖器 4 Ch LCD Gamma Crction Buffer +Vcom RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
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