- 您現在的位置：買賣IC網 > PDF目錄373964 > AD9631AN (ANALOG DEVICES INC) Ultralow Distortion, Wide Bandwidth Voltage Feedback Op Amps PDF資料下載
參數資料
| 型號： | AD9631AN |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Ultralow Distortion, Wide Bandwidth Voltage Feedback Op Amps |
| 中文描述： | VIDEO AMPLIFIER, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數： | 14/20頁 |
| 文件大小： | 528K |
| 代理商： | AD9631AN |
AD9631/AD9632
REV. A
–14–
For general voltage gain applications, the amplifier bandwidth
can be closely estimated as:
f
3
dB
ω
O
2
π
1
+
R
F
R
G
This estimation loses accuracy for gains of +2/–1 or lower due
to the amplifier’s damping factor. For these “low gain” cases,
the bandwidth will actually extend beyond the calculated value
(see Closed-Loop BW plots, Figures 15 and 27).
As a rule of thumb, capacitor C
F
will not be required if:
(
R
F
i
R
G
)
×
C
I
≤
NG
4
ω
O
where
NG
is the Noise Gain (1 + R
F
/R
G
) of the circuit. For
most voltage gain applications, this should be the case.
Pulse Response
Unlike a traditional voltage feedback amplifier, where the slew
speed is dictated by its front end dc quiescent current and gain
bandwidth product, the AD9631 and AD9632 provide “on de-
mand” current that increases proportionally to the input “step”
signal amplitude. This results in slew rates (1300 V/
μ
s) compa-
rable to wideband current feedback designs. This, combined
with relatively low input noise current (2.0 pA/
√
Hz
), gives the
AD9631 and AD9632 the best attributes of both voltage and
current feedback amplifiers.
Large Signal Performance
The outstanding large signal operation of the AD9631 and
AD9632 is due to a unique, proprietary design architecture.
In order to maintain this level of performance, the maximum
550 V-MHz product must be observed, (e.g., @ 100 MHz,
V
O
≤
5.5 V p-p).
Power Supply Bypassing
Adequate power supply bypassing can be critical when optimiz-
ing the performance of a high frequency circuit. Inductance in
the power supply leads can form resonant circuits that produce
peaking in the amplifier’s response. In addition, if large current
transients must be delivered to the load, then bypass capacitors
(typically greater than 1
μ
F) will be required to provide the best
settling time and lowest distortion. A parallel combination of at
least 4.7
μ
F, and between 0.1
μ
F and 0.01
μ
F, is recommended.
Some brands of electrolytic capacitors will require a small series
damping resistor
≈
4.7
for optimum results.
Driving Capacitive Loads
The AD9631 and AD9632 were designed primarily to drive
nonreactive loads. If driving loads with a capacitive component
is desired, the best frequency response is obtained by the addi-
tion of a small series resistance as shown in Figure 60. The ac-
companying graph shows the optimum value for R
SERIES
vs.
capacitive load. It is worth noting that the frequency response of
the circuit when driving large capacitive loads will be dominated
by the passive roll-off of R
SERIES
and C
L
.
R
F
R
SERIES
R
L
1k
C
L
R
IN
AD9631/32
R
IN
Figure 60. Driving Capacitive Loads
40
0
25
30
10
5
20
15
20
10
R
S
C
L
– pF
Figure 61. Recommended R
SERIES
vs. Capacitive Load
相關PDF資料 |
PDF描述 |
|---|---|
| AD9631AR | Ultralow Distortion, Wide Bandwidth Voltage Feedback Op Amps |
| AD9632 | Ultralow Distortion, Wide Bandwidth Voltage Feedback Op Amps |
| AD9632-EB | Ultralow Distortion, Wide Bandwidth Voltage Feedback Op Amps |
| AD9632AN | Ultralow Distortion, Wide Bandwidth Voltage Feedback Op Amps |
| AD9632AR | Ultralow Distortion, Wide Bandwidth Voltage Feedback Op Amps |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9631ANZ | 功能描述:IC OPAMP VF ULDIST 70MA 8DIP 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 |
| AD9631AR | 功能描述:IC OPAMP VF ULDIST 70MA 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:Excalibur™ 放大器類型:J-FET 電路數:1 輸出類型:- 轉換速率:45 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:20pA 電壓 - 輸入偏移:490µV 電流 - 電源:1.7mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 38 V，±2.25 V ~ 19 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:8-SOIC 包裝:帶卷 (TR) |
| AD9631AR-EBZ | 功能描述:BOARD EVAL FOR AD9631AR RoHS:是 類別:編程器，開發系統 >> 評估板 - 運算放大器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- |
| AD9631AR-REEL | 功能描述:IC OPAMP VF ULDIST 70MA 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:150 系列:- 放大器類型:音頻 電路數:2 輸出類型:- 轉換速率:5 V/µs 增益帶寬積:12MHz -3db帶寬:- 電流 - 輸入偏壓:100nA 電壓 - 輸入偏移:500µV 電流 - 電源:6mA 電流 - 輸出 / 通道:50mA 電壓 - 電源，單路/雙路(±):4 V ~ 32 V，±2 V ~ 16 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:8-TSSOP 包裝:管件 |
| AD9631AR-REEL7 | 功能描述:IC OPAMP VF ULDIST 70MA 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:150 系列:- 放大器類型:音頻 電路數:2 輸出類型:- 轉換速率:5 V/µs 增益帶寬積:12MHz -3db帶寬:- 電流 - 輸入偏壓:100nA 電壓 - 輸入偏移:500µV 電流 - 電源:6mA 電流 - 輸出 / 通道:50mA 電壓 - 電源，單路/雙路(±):4 V ~ 32 V，±2 V ~ 16 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:8-TSSOP 包裝:管件 |
發布緊急采購，3分鐘左右您將得到回復。