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參數資料
| 型號： | ADA4860-1YRJZ-RL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 8/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP CF LP 85MA SOT23-6 |
| 產品培訓模塊： | Practical Guide High Speed PCB Layout |
| 標準包裝： | 1 |
| 放大器類型： | 電流反饋 |
| 電路數： | 1 |
| 轉換速率： | 980 V/µs |
| -3db帶寬： | 520MHz |
| 電流 - 輸入偏壓： | 1.5µA |
| 電壓 - 輸入偏移： | 3500µV |
| 電流 - 電源： | 6mA |
| 電流 - 輸出 / 通道： | 85mA |
| 電壓 - 電源，單路/雙路(±)： | 5 V ~ 12 V，±2.5 V ~ 6 V |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-6 |
| 供應商設備封裝： | SOT-23-6 |
| 包裝： | 標準包裝 |
| 產品目錄頁面： | 772 (CN2011-ZH PDF) |
| 其它名稱： | ADA4860-1YRJZ-RL7DKR |
ADA4860-1
Rev. 0 | Page 15 of 20
DRIVING CAPACITIVE LOADS
If driving loads with a capacitive component is desired, the best
frequency response is obtained by the addition of a small series
value for RSERIES vs. capacitive load. The test was performed with
a 50 MHz, 50% duty cycle pulse, with an amplitude of 200 mV p-p.
The criteria for RSERIES selection was based on maintaining
approximately 1 dB of peaking in small signal frequency
response. It is worth noting that the frequency response of the
circuit can be dominated by the passive roll-off of RSERIES and CL.
05
70
9-
05
2
VIN
RL
CL
RSERIES
RF
750
ADA4860-1
Figure 53. Driving Capacitive Loads
14
12
10
8
6
4
2
0
050
40
30
20
10
SER
IE
S
R
ES
IST
A
N
C
E
(
)
CAPACITIVE LOAD (pF)
05
70
9-
0
60
Figure 54. Recommended RSERIES vs. Capacitive Load
POWER DOWN PIN
The ADA4860-1 is equipped with a power-down function.
The POWER DOWN pin allows the user to reduce the quiescent
supply current when the amplifier is not being used. The
power-down threshold levels are derived from the voltage
applied to the VS pin. When used in single-supply applications,
this is especially useful with conventional logic levels. The
amplifier is powered down when the voltage applied to the
POWER DOWN pin is greater than (VS + 0.5 V). The
amplifier is enabled whenever the POWER DOWN pin is left
open, or the voltage on the POWER DOWN pin is less than
(VS + 0.5 V). If the POWER DOWN pin is not used, it should
be connected to the negative supply.
VIDEO AMPLIFIER
With low differential gain and phase errors and wide 0.1 dB
flatness, the ADA4860-1 is an ideal solution for consumer and
professional video applications. Figure 55 shows a typical video
driver set for a noninverting gain of +2, where RF = RG = 499 Ω.
The video amplifier input is terminated into a shunt 75 Ω resistor.
At the output, the amplifier has a series 75 Ω resistor for
impedance matching to the video load.
05
70
9-
03
8
75
CABLE
75
VOUT
–VS
+VS
VIN
0.1F
10F
75
CABLE
75
ADA4860-1
+
–
RF
+
RG
Figure 55. Video Driver Schematic
SINGLE-SUPPLY OPERATION
Single-supply operation can present certain challenges for the
designer. For a detailed explanation on op amp single-supply
operation, see Application Note AN-581.
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| ADA4861-3YR-EBZ | 功能描述:BOARD EVAL FOR ADA4861-3YR RoHS:是 類別:編程器，開發(fā)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:- |
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