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參數(shù)資料
| 型號： | MAX4022ESD |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Low-Cost, High-Speed, Single-Supply, Gain of +2 Buffers with Rail-to-Rail Outputs in SOT23 |
| 中文描述： | QUAD BUFFER AMPLIFIER, PDSO14 |
| 封裝： | SO-14 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大小： | 119K |
| 代理商： | MAX4022ESD |
M
Low-Cost, High-Speed, Single-Supply, Gain of +2
Buffers with Rail-to-Rail Outputs in SOT23
8
_______________________________________________________________________________________
_______________Detailed Desc ription
The MAX4014/MAX4017/MAX4019/MAX4022 are sin-
gle-supply, rail-to-rail output, voltage-feedback, closed-
loop buffers that employ current-feedback techniques
to achieve 600V/μs slew rates and 200MHz band-
widths. These buffers use internal 500
resistors to
provide a preset closed-loop gain of +2V/V in the non-
inverting configuration or -1V/V in the inverting configu-
ration. Excellent harmonic distortion and differential
gain/phase performance make these buffers an ideal
choice for a wide variety of video and RF signal-pro-
cessing applications.
Local feedback around the buffer’ s output stage
ensures low output impedance, which reduces gain
sensitivity to load variations. This feedback also pro-
duces demand-driven current bias to the output tran-
sistors for ±120mA drive capability, while constraining
total supply current to less than 7mA.
__________Applic ations Information
Power S upplies
These devices operate from a single +3.15V to +11V
power supply or from dual supplies of ±1.575V to
±5.5V. For single-supply operation, bypass the V
CC
pin
to ground with a 0.1μF capacitor as close to the pin as
possible. If operating with dual supplies, bypass each
supply with a 0.1μF capacitor.
S elec ting Gain Configuration
Each buffer in the MAX4014 family can be configured
for a voltage gain of +2V/V or -1V/V. For a gain of
+2V/V, ground the inverting terminal. Use the noninvert-
ing terminal as the signal input of the buffer (Figure 1a).
Grounding the noninverting terminal and using the
inverting terminal as the signal input configures the
buffer for a gain of -1V/V (Figure 1b).
Since the inverting input exhibits a 500
input imped-
ance, terminate the input with a 56
resistor when the
device is configured for an inverting gain in 50
appli-
cations (terminate with 88
in 75
applications).
Terminate the input with a 49.9
resistor in the nonin-
verting case. Output terminating resistors should direct-
ly match cable impedances in either configuration.
Layout T ec hniques
Maxim recommends using microstrip and stripline tech-
niques to obtain full bandwidth. To ensure that the PC
board does not degrade the buffer’s performance, design
it for a frequency greater than 1GHz. Pay careful attention
to inputs and outputs to avoid large parasitic capaci-
tance. Whether or not you use a constant-impedance
board, observe the following guidelines when designing
the board:
Don’t use wire-wrapped boards. They are too inductive.
Don’t use IC sockets. They increase parasitic capac-
itance and inductance.
Use surface-mount instead of through-hole compon-
ents for better high-frequency performance.
Use a PC board with at least two layers; it should be
as free from voids as possible.
Keep signal lines as short and as straight as possi-
ble. Do not make 90° turns; round all corners.
MAX40_ _
500
500
IN-
OUT
*R
*R
OUT
IN
R
TIN
IN+
*R
L
= 2R
MAX40_ _
500
500
OUT
*R
*R
OUT
R
S
R
TIN
IN+
IN-
IN
*R
L
= 2R
Figure 1a. Noninverting Gain Configuration (A
V
= +2V/V)
Figure 1b. Inverting Gain Configuration (A
V
= -1V/V)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4022ESD+ | 功能描述:高速運算放大器 High-Speed Single Supply RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX4022ESD+T | 功能描述:高速運算放大器 High-Speed Single Supply RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX4022ESD-T | 功能描述:高速運算放大器 RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX4023 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Triple and Quad, 2:1 Video Multiplexer- Amplifiers with Fixed and Settable Gain |
| MAX4023_09 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Triple and Quad, 2:1 Video Multiplexer- Amplifiers with Fixed and Settable Gain |
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