- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄6115 > AD8091ARTZ-R7 (Analog Devices Inc)IC OPAMP VF R-R LDIST LP SOT23-5 PDF資料下載
參數(shù)資料
| 型號(hào)： | AD8091ARTZ-R7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 6/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP VF R-R LDIST LP SOT23-5 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 放大器類型： | 電壓反饋 |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 170 V/µs |
| -3db帶寬： | 110MHz |
| 電流 - 輸入偏壓： | 1.4µA |
| 電壓 - 輸入偏移： | 1800µV |
| 電流 - 電源： | 4.8mA |
| 電流 - 輸出 / 通道： | 45mA |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 12 V，±1.5 V ~ 6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SC-74A，SOT-753 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-5 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 產(chǎn)品目錄頁面： | 770 (CN2011-ZH PDF) |
| 其它名稱： | AD8091ARTZ-R7DKR |
AD8091/AD8092
Rev. C | Page 13 of 20
DRIVING CAPACITIVE LOADS
A highly capacitive load reacts with the output of the amplifiers,
causing a loss in phase margin and subsequent peaking or even
methods to effectively minimize its effect.
Put a small value resistor in series with the output to isolate
the load capacitor from the amplifier’s output stage.
Increase the phase margin with higher noise gains or by
adding a pole with a parallel resistor and capacitor from
IN to the output.
8
–12
–10
–8
–6
–4
–2
0
2
4
6
0.1
500
100
110
02
85
9-
02
9
FREQUENCY (MHz)
GA
IN
(
d
B
)
VS = 5V
G = +1
RL = 2k
CL = 50pF
VO = 200mV p-p
Figure 29. Closed-Loop Frequency Response: CL = 50 pF
2.50V
100ns
50mV
2.60V
2.45V
2.55V
2.40V
02
85
9-
03
0
VS = 5V
G = +1
RL = 2k
CL = 50pF
Figure 30. 200 mV Step Response: CL = 50 pF
As the closed-loop gain is increased, the larger phase margin
allows for large capacitor loads with less peaking. Adding a low
value resistor in series with the load at lower gains has the same
effect. Figure 31 shows the effect of a series resistor for various
voltage gains. For large capacitive loads, the frequency response
of the amplifier is dominated by the series resistor and capaci-
tive load.
10000
1
10
100
1000
16
5
23
4
02
85
9-
0
31
ACL (V/V)
C
A
P
A
C
ITIV
E
LOA
D
(
p
F)
VS = 5V
30%
OVERSHOOT
RS = 3
RS = 0
RG
RF
RS
CL
VOUT
50
VIN
100mV STEP
Figure 31. Capacitive Load Drive vs. Closed-Loop Gain
OVERDRIVE RECOVERY
Overdrive of an amplifier occurs when the output range and/or
input range is exceeded. The amplifier must recover from this
overdrive condition. The AD8091/AD8092 recover within 60 ns
from negative overdrive and within 45 ns from positive
overdrive, as shown in Figure 32.
02
85
9-
03
2
V/DIV AS SHOWN
100ns
INPUT 1V/DIV
OUTPUT 2V/DIV
VS = ±5V
G = +5
RF = 2k
RL = 2k
Figure 32. Overdrive Recovery
ACTIVE FILTERS
Active filters at higher frequencies require wider bandwidth op
amps to work effectively. Excessive phase shift produced by
lower frequency op amps can significantly impact active filter
performance.
Figure 33 shows an example of a 2 MHz biquad bandwidth filter
that uses three op amps. Such circuits are sometimes used in
medical ultrasound systems to lower the noise bandwidth of the
analog signal before A/D conversion. Note that the unused
amplifiers’ inputs should be tied to ground.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 61900411021 | HEADER 4POS PIN R/A 2.54MM T/H |
| 929834-01-18-RK | CONN HEADER 18POS SNGL .100 STR |
| 151204-2320-RB | CONN 4POS 2MM HEADER DL STR SMD |
| AD8502ARJZ-REEL7 | IC OPAMP GP CMOS 7KHZ SOT23-8 |
| 1SMB22AT3G | TVS ZENER UNIDIRECT 600W 22V SMB |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8091ARTZ-RL | 制造商:Analog Devices 功能描述:OP Amp Single GP R-R O/P 制造商:Analog Devices 功能描述:OP Amp Single GP R-R O/P ±6V/12V 5-Pin SOT-23 T/R |
| AD8091ARZ | 功能描述:IC OPAMP VF R-R LDIST LP 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)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(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT |
| AD8091ARZ-REEL | 功能描述:IC OPAMP VF R-R LDIST LP 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)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(yīng)商設(shè)備封裝:16-SOIC N 包裝:管件 |
| AD8091ARZ-REEL7 | 功能描述:IC OPAMP VF R-R LDIST LP 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)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(yīng)商設(shè)備封裝:16-SOIC N 包裝:管件 |
| AD8091WARTZ-R7 | 功能描述:Voltage Feedback Amplifier 1 Circuit Rail-to-Rail 制造商:analog devices inc. 系列:- 包裝:- 零件狀態(tài):上次購買時(shí)間 放大器類型:電壓反饋 電路數(shù):1 輸出類型:滿擺幅 壓擺率:170 V/μs 增益帶寬積:- -3db 帶寬:110MHz 電流 - 輸入偏置:1.4μA 電壓 - 輸入失調(diào):1.8mV 電流 - 電源:4.8mA 電流 - 輸出/通道:45mA 電壓 - 電源，單/雙（±）:3 V ~ 12 V，±1.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:- 供應(yīng)商器件封裝:- 標(biāo)準(zhǔn)包裝:1 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。