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參數資料
型號: AD8055ARTZ-REEL7
廠商: ANALOG DEVICES INC
元件分類: 音頻/視頻放大
英文描述: Low Cost, 300 MHz Voltage Feedback Amplifiers
中文描述: 1 CHANNEL, VIDEO AMPLIFIER, PDSO5
封裝: LEAD FREE, MO-178AA, SOT-23, 5 PIN
文件頁數: 13/16頁
文件大小: 255K
代理商: AD8055ARTZ-REEL7
AD8055/AD8056
POWER DISSIPATION LIMITS
With a 10 V supply (total V
CC
V
EE
), the quiescent power
dissipation of the AD8055 in the SOT-23-5 package is 65 mW,
while the quiescent power dissipation of the AD8056 in the
MSOP-8 is 120 mW. This translates into a 15.6°C rise above the
ambient for the SOT-23-5 package and a 24°C rise for the
MSOP-8 package.
Rev. J | Page 13 of 16
FREQUENCY (MHz)
5
4
–5
1
–2
–3
–4
3
2
–1
0
N
0.3
1
10
100
500
C
L
402
100
402
50
V
IN
= 0dBm
C
L
= 0pF
C
L
= 10pF
C
L
= 20pF
C
L
= 30pF
0
The power dissipated under heavy load conditions is
approximately equal to the supply voltage minus the output
voltage, times the load current, plus the quiescent power
previously computed. The total power dissipation is then
multiplied by the thermal resistance of the package to find the
temperature rise, above ambient, of the part. The junction
temperature should be kept below 150°C.
Figure 39. Capacitive Load Drive
In general, to minimize peaking or to ensure the stability for
larger values of capacitive loads, a small series resistor, R
be added between the op amp output and the capacitor, C
L
. For
the setup depicted in Figure 40, the relationship between R
S
and
C
chosen to produce less than 1 dB of peaking in the frequency
response. Note also that after a sharp rise, R
S
quickly settles to
approximately 25 Ω.
The AD8055 in the SOT-23-5 package can dissipate 270 mW,
while the AD8056 in the MSOP-8 package can dissipate
325 mW (at 85°C ambient) without exceeding the maximum
die temperature. In the case of the AD8056, this is greater than
1.5 V rms into 50 Ω, enough to accommodate a 4 V p-p sine
wave signal on both outputs simultaneously. However, because
each output of the AD8055 or AD8056 is capable of supplying
as much as 110 mA into a short circuit, a continuous short-
circuit condition will exceed the maximum safe junction
temperature.
S
, can
RESISTOR SELECTION
Table 3 is a guide for resistor selection for maintaining gain
flatness vs. frequency for various values of gain.
Table 3.
Gain
R
F
(Ω)
R
G
(Ω)
+1
0
+2
402
402
+5
1 k
249
+10
909
100
3 dB Bandwidth (MHz)
300
160
45
20
DRIVING CAPACITIVE LOADS
When driving a capacitive load, most op amps exhibit peaking
in the frequency response just before the frequency rolls off.
Figure 39 shows the responses for an AD8056 running at a gain
of +2, with an 100 Ω load that is shunted by various values of
capacitance. It can be seen that under these conditions the part
is still stable with capacitive loads of up to 30 pF.
L
was empirically derived and is shown in Figure 41. R
S
was
50
AD8055
+5V
–5V
402
402
6
7
2
3
4
FET PROBE
V
OUT
C
L
V
IN
= 0dBm
R
S
0.1μF
10μF
0.1μF
10μF
0
Figure 40. Setup for R vs. C
L
40
0
35
20
15
10
5
30
25
C
L
(pF)
R
S
)
0
10
20
30
40
50
60
270
0
Figure 41. R vs. C
S
L
相關PDF資料
PDF描述
AD8055ARZ Low Cost, 300 MHz Voltage Feedback Amplifiers
AD8055ARZ-REEL Low Cost, 300 MHz Voltage Feedback Amplifiers
AD8055ARZ-REEL1 Low Cost, 300 MHz Voltage Feedback Amplifiers
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AD8056ARMZ Low Cost, 300 MHz Voltage Feedback Amplifiers
相關代理商/技術參數
參數描述
AD8055ARTZ-REEL7 制造商:Analog Devices 功能描述:IC, OP-AMP, 300MHZ, 1400V/ us, SOT-23-5
AD8055ARZ 功能描述:IC OPAMP VF LDIST LN LP 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1 系列:- 放大器類型:通用 電路數:4 輸出類型:滿擺幅 轉換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT
AD8055ARZ 制造商:Analog Devices 功能描述:Operational Amplifier (Op-Amp) IC
AD8055ARZ-ND 制造商:Analog Devices 功能描述:
AD8055ARZ-REEL 功能描述:IC OPAMP VF LDIST LN LP 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:160 系列:- 放大器類型:通用 電路數:4 輸出類型:滿擺幅 轉換速率:10 V/µs 增益帶寬積:9MHz -3db帶寬:- 電流 - 輸入偏壓:1pA 電壓 - 輸入偏移:250µV 電流 - 電源:730µA 電流 - 輸出 / 通道:28mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 5.5 V,±1.35 V ~ 2.75 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.154",3.90mm 寬) 供應商設備封裝:16-SOIC N 包裝:管件
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