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參數(shù)資料
| 型號： | AD830JR-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC VIDEO DIFF AMP HS 8-SOIC T/R |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 應(yīng)用： | 差分 |
| 電路數(shù)： | 1 |
| -3db帶寬： | 85MHz |
| 轉(zhuǎn)換速率： | 360 V/µs |
| 電流 - 電源： | 14.5mA |
| 電流 - 輸出 / 通道： | 50mA |
| 電壓 - 電源，單路/雙路(±)： | 8 V ~ 33 V，±4 V ~ 16.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 帶卷 (TR) |
AD830
Rev. C | Page 16 of 20
stability and also keep bias current induced offsets low. Highest
CMRR and lowest dc offsets are preserved by including a
compensating resistor in series with Pin 3. The gain may be as
high as 100.
0.1F
VP
VOUT
VN
AD830
1
2
3
4
8
7
6
5
A = 1
C
GM
INPUT
SIGNAL
VCM
ZCM
V1
V2
R1 R2
R2
R1
VOUT = (V1 – V2)(1 + R1/R2)
00
88
1-
04
0
Figure 40. Gain of G Differential Amplifier, G>1
Offsetting the Output With Gain
Some applications, such as ADCs, require that the signal be
amplified and also offset, typically to accommodate the input
range of the device. The AD830 can offset the output signal
very simply through Pin 3 even with gain > 1. The voltage
applied to Pin 3 must be attenuated by an appropriate factor so
from a voltage reference is used to produce the attenuated offset
voltage.
VP
VOUT
VN
AD830
1
2
3
4
8
7
6
5
A = 1
GM
C
0.1F
INPUT
SIGNAL
VCM
ZCM
V1
V2
R1 R2
R2
R1
R3
R4
V3
VREF
VOUT = (V1 – V2)(1 + R1/R2)
0
08
81
-04
1
Figure 41. Offsetting the Output with Differential Gain >1
Loop Through or Line Bridging Amplifier (Figure 42)
The AD830 is ideally suited for use as a video line bridging
amplifier. The video signal is tapped from the conductor of the
cable relative to its shield. The high input impedance of the
AD830 provides negligible loading on the cable. More significantly,
the benign loading is maintained while the AD830 is powered
down. Coupled with its good video load driving performance,
the AD830 is well suited for video cable monitoring applications.
VP
VOUT
VN
AD830
1
2
3
4
8
7
6
5
A = 1
GM
C
GM
RG
249
OPTIONAL CC
499
499
75
75
0.1F
0
08
81
-0
42
Figure 42. Cable Tap Amplifier
Resistorless Summing
Direct, two input, resistorless summing is easily realized from
the general unity gain mode. By grounding VX2 and applying the
two inputs to VX1 and VY1, the output is the exact sum of the
applied voltages, V1 and V3, relative to common; VOUT = V1 + V3.
A diagram of this simple but potent application is shown below
in Figure 43. The AD830 summing circuit possesses several
virtues not present in the classic op amp based summing circuits.
It has high impedance inputs, no resistors, very precise summing,
high reverse isolation, and noninverting gain. Achieving this
function and performance with op amps requires significantly
more components.
VP
OUT
VN
AD830
1
2
3
4
8
7
6
5
A = 1
GM
C
GM
V1
V3
VOUT = V1 +V3
0
08
81-
0
43
Figure 43. Resistorless Summing Amplifier
2× Gain Bandwidth Line Driver
A gain of two, without the use of resistors, is possible with the
AD830. This is accomplished by grounding VX2, tying the VX1
and VY1 inputs together, and applying the input, VIN, to this
wired connection. The output is exactly twice the applied
for this highly useful application. The most notable characteristic of
this alternative gain of +2 is that there is no loss of bandwidth as
in a voltage feedback op amp based gain of +2 where the
bandwidth is halved; therefore, the gain bandwidth is doubled.
In addition, this circuit is accurate without the need for any
precise valued resistors, as in the op amp equivalents, and it
possesses excellent differential gain and phase performance, as
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| AD830JR-REEL7 | 功能描述:IC VIDEO DIFF AMP HS 8-SOIC T/R RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| AD830JRZ | 功能描述:IC VIDEO DIFF AMP HS 8-SOIC RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| AD830JRZ | 制造商:Analog Devices 功能描述:IC VIDEO DIFF AMP 85MHZ 360V/US 8SO |
| AD830JRZ-R7 | 功能描述:IC VIDEO DIFF AMP HS 8-SOIC T/R RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 應(yīng)用:TFT-LCD 面板：VCOM 驅(qū)動器 輸出類型:滿擺幅 電路數(shù):1 -3db帶寬:35MHz 轉(zhuǎn)換速率:40 V/µs 電流 - 電源:3.7mA 電流 - 輸出 / 通道:1.3A 電壓 - 電源，單路/雙路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬）裸露焊盤 供應(yīng)商設(shè)備封裝:8-uMax-EP 包裝:管件 |
| AD830JRZ-RL | 功能描述:IC VIDEO DIFF AMP HS 8-SOIC T/R RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
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