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參數(shù)資料
| 型號： | AD8028AR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Low Distortion, High Speed Rail-to-Rail Input/Output Amplifiers |
| 中文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDSO8 |
| 封裝： | MS-012AA, SOIC-8 |
| 文件頁數(shù)： | 18/24頁 |
| 文件大?。?/td> | 478K |
| 代理商： | AD8028AR |
AD8027/AD8028
WIDEBAND OPERATION
Voltage feedback amplifiers can use a wide range of resistor
values to set their gain. Proper design of the application’s feed-
back network requires consideration of the following issues:
Rev. B | Page 18 of 24
Poles formed by the amplifier’s input capacitances
with the resistances seen at the amplifier’s input
terminals
Effects of mismatched source impedances
Resistor value impact on the application’s voltage noise
Amplifier loading effects
The AD8027/AD8028 has an input capacitance of 2 pF. This
input capacitance will form a pole with the amplifier’s feedback
network, destabilizing the loop. For this reason, it is generally
desirable to keep the source resistances below 500 , unless
some capacitance is included in the feedback network. Likewise,
keeping the source resistances low will also take advantage of
the AD8027/AD8028’s low input referred voltage noise of
4.3 nV/√Hz.
With a wide bandwidth of over 190 MHz, the AD8027/AD8028
has numerous applications and configurations. The
AD8027/AD8028 shown in Figure 57 is configured as a nonin-
verting amplifier. The inverting configuration is shown in
Figure 58 and an easy selection table of gain, resistor values,
bandwidth, slew rate, and noise performance is presented in
Table 5.
+V
–V
C2
10
μ
F
C1
0.1
μ
F
C4
0.1
μ
F
C3
10
μ
F
V
OUT
R
G
R1
R
F
SELECT
V
IN
R1 = R
F
||R
G
AD8027/
AD8028
+
–
03327-A-056
Figure 57. Wideband Noninverting Gain Configuration
+V
–V
C2
10
μ
F
C1
0.1
μ
F
C4
0.1
μ
F
C3
10
μ
F
R1
C5
V
OUT
R
G
R1 = R
F
||R
G
R
F
V
IN
SELECT
AD8027/
AD8028
+
–
03327-A-057
C
F
Figure 58. Wideband Inverting Gain Configuration
Table 5. Component Values, Bandwidth, and Noise
Performance (V
S
=
±
2.5 V)
Noise Gain
(Noninverting)
1
2
10
R
SOURCE
()
50
50
50
R
F
()
0
499
499 54.9
R
G
()
N/A
499
–3 dB
SS BW
(MHz)
190
95
13
Output
Noise with
Resistors
(nV/√Hz)
4.4
10
45
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| AD8028ARM-REEL7 | 制造商:Analog Devices 功能描述:OP Amp Dual GP R-R I/O ±6V/12V 10-Pin MSOP T/R 制造商:Rochester Electronics LLC 功能描述:HIGH PERFORMANCE RRIO - Tape and Reel |
| AD8028ARMZ | 功能描述:IC OPAMP R-R DUAL LDIST 10MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
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