参数资料
| 型号： | AD8079AR |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/12页 |
| 文件大小： | 0K |
| 描述： | IC AMP BUF DUAL LP LDIST 8SOIC |
| 标准包装： | 98 |
| 放大器类型： | 缓冲器 |
| 电路数： | 2 |
| 转换速率： | 800 V/µs |
| -3db带宽： | 260MHz |
| 电流 - 输入偏压： | 3µA |
| 电压 - 输入偏移： | 10000µV |
| 电流 - 电源： | 10mA |
| 电流 - 输出 / 通道： | 70mA |
| 电压 - 电源，单路/双路(±)： | 6 V ~ 12 V，±3 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
AD8079
REV. A
–8–
8
7
6
2
1
5
4
3
VOUT #1
75
75
CABLE
75
VOUT #2
75
75
CABLE
75
75
75
CABLE
VIN
+VS
–VS
VOUT #3
75
75
CABLE
75
VOUT #4
75
75
CABLE
75
1/2
AD8079
1/2
AD8079
4.7F
0.1F
Figure 26. Video Line Driver
Single-Ended to Differential Driver Using an AD8079
The two halves of an AD8079 can be configured to create a
single-ended to differential high speed driver with a –3 dB band-
width in excess of 110 MHz as shown in Figure 27. Although
the individual op amps are each current feedback with internal
feedback resistors, the overall architecture yields a circuit with
attributes normally associated with voltage feedback amplifiers,
while offering the speed advantages inherent in current feedback
amplifiers. In addition, the gain of the circuit can be changed by
varying a single resistor, RF, which is often not possible in a dual
op amp differential driver.
50
OUTPUT #1
50
OUTPUT #2
RG
750
RF 750
1/2
AD8079
1/2
AD8079
OP AMP #1
OP AMP #2
VIN
CC = 1.5pF
Figure 27. Differential Line Driver
VOUT
RF
( INTERNAL)
RN
I BI
I BN
RI
( INTERNAL)
RSERIES
CL
Figure 24. Output Offset Voltage
Driving Capacitive Loads
The AD8079 was designed primarily to drive nonreactive loads.
If driving loads with a capacitive component is desired, best
frequency response is obtained by the addition of a small series
output resistance (RSERIES). The graph in Figure 25 shows the
optimum value for RSERIES 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
RSERIES and CL.
CL – pF
40
30
0
025
5
R
SERIES
–
10
15
20
10
Figure 25. Recommended RSERIES vs. Capacitive Load
Operation as a Video Line Driver
The AD8079 has been designed to offer outstanding perfor-
mance as a video line driver. The important specifications of
differential gain (0.01%) and differential phase (0.02
°) meet the
most exacting HDTV demands for driving one video load with
each amplifier. The AD8079 also drives four back terminated
loads (two each), as shown in Figure 26, with equally impressive
performance (0.01%, 0.07
°). Another important consideration is
isolation between loads in a multiple load application. The
AD8079 has more than 40 dB of isolation at 5 MHz when driv-
ing two 75
back terminated loads.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8079AR-REEL | 制造商:Analog Devices 功能描述:OP Amp Dual Current Fdbk 制造商:Analog Devices 功能描述:OP Amp Dual Current Fdbk ±6V 8-Pin SOIC N T/R |
| AD8079AR-REEL7 | 制造商:Analog Devices 功能描述:OP Amp Dual Current Fdbk 制造商:Analog Devices 功能描述:OP Amp Dual Current Fdbk ±6V 8-Pin SOIC N T/R |
| AD8079ARZ | 功能描述:IC AMP BUF DUAL LP LDIST 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.6 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:45nA 电压 - 输入偏移:2000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:40mA 电压 - 电源，单路/双路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) 其它名称:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| AD8079ARZ | 制造商:Analog Devices 功能描述:IC HIGH SPEED BUFFER DUAL 260MHZ SOIC8 |
| AD8079ARZ-REEL | 功能描述:IC AMP BUF DUAL LP LDIST 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:J-FET 电路数:2 输出类型:- 转换速率:13 V/µs 增益带宽积:3MHz -3db带宽:- 电流 - 输入偏压:65pA 电压 - 输入偏移:3000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-PDIP 包装:管件 |
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