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参数资料
| 型号： | AD818AR |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | Low Cost, Low Power Video Op Amp |
| 中文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDSO8 |
| 封装： | PLASTIC, SOIC-8 |
| 文件页数： | 11/12页 |
| 文件大小： | 353K |
| 代理商： | AD818AR |
AD818
REV. B
–11–
AD829
100
0.47μF
0.01μF
–
V
S
0.47μF
0.01μF
+V
S
SHORT, DIRECT
CONNECTION TO
TEKTRONIX TYPE 11402
OSCILLOSCOPE PREAMP
INPUT SECTION
15pF
1M
SETTLING
OUTPUT
2
HP2835
ERROR AMPLIFIER
V
ERROR
OUTPUT
×
10
1.9k
100
AD818
0.01μF
–
V
S
0.01μF
2.2μF
+V
S
2.2μF
10pF
SCOPE PROBE
CAPACITANCE
TEKTRONIX P6201
FET PROBE TO
TEKTRONIX TYPE 11402
OSCILLOSCOPE
PREAMP INPUT SECTION
500
5
–
18pF
DEVICE
UNDER
TEST
NOTE:
USE CIRCUIT BOARD
WITH GROUND PLANE
FALSE
SUMMING
NODE
NULL
ADJUST
1k
100
1k
50
COAX
CABLE
TTL LEVEL
SIGNAL
GENERATOR
50Hz
OUTPUT
2
13
1, 14
7, 8
DIGITAL
GROUND
ANALOG
GROUND
0 TO ±10V
POWER
SUPPLY
EI&S
DL1A05GM
MERCURY
RELAY
ERROR
SIGNAL
OUTPUT
500
50
2
3
5
6
4
7
2
HP2835
2
3
6
7
4
Figure 37. Settling Time Test Circuit
DIFFERENTIAL LINE RECEIVER
The differential receiver circuit of Figure 39 is useful for many
applications from audio to video. It allows extraction of a low
level signal in the presence of common-mode noise. As shown
in Figure 40, the AD818 provides this function with only
10 nV/
√
Hz
noise at the output.
V
OUT
2pF
DIFFERENTIAL
INPUT
+5V
–
5V
OUTPUT
AD818
0.01 F
2.2 F
2
3
6
4
7
0.01 F
2.2 F
2pF
1k
1k
1k
1k
Figure 39. Differential Line Receiver
200
V
10n
s
200m
V
A
A
A
10
90
100
0%
AAAA
AA
AAA
AAA
AAAA
AAAA
AA
A
AAA
1V
20ns
Figure 40. Performance of Line Receiver, R
L
= 150
,
G = +2
AD818 SETTLING TIME
Settling time is comprised primarily of two regions. The first is
the slew time in which the amplifier is overdriven, where the
output voltage rate of change is at its maximum. The second is
the linear time period required for the amplifier to settle to
within a specified percent of the final value.
Measuring the rapid settling time of AD818 (45 ns to 0.1% and
80 ns to 0.01%—10 V step) requires applying an input pulse
with a very fast edge and an extremely flat top. With the AD818
configured in a gain of –1, a clamped false summing junction
responds when the output error is within the sum of two diode
voltages (approximately 1 volt). The signal is then amplified 20
times by a clamped amplifier whose output is connected directly
to a sampling oscilloscope.
A High Performance Video Line Driver
The buffer circuit shown in Figure 38 will drive a back-termi-
nated 75
video line to standard video levels (1 V p-p) with
0.1 dB gain flatness to 55 MHz with only 0.05
°
and 0.01%
differential phase and gain at the 3.58 MHz NTSC subcarrier
frequency. This level of performance, which meets the require-
ments for high-definition video displays and test equipment, is
achieved using only 7 mA quiescent current.
+15V
V
IN
–
15V
AD818
0.01μF
2.2μF
2
3
6
4
7
0.01μF
2.2μF
Rt
75
Rbt
75
75
Rt
75
1k
1k
Figure 38. Video Line Driver
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|---|---|
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD818AR-EBZ | 功能描述:BOARD EVAL FOR AD818AR RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:* 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| AD818AR-REEL | 制造商:Analog Devices 功能描述:OP Amp Single Volt Fdbk 制造商:Analog Devices 功能描述:OP Amp Single Volt Fdbk ±18V/36V 8-Pin SOIC N T/R 制造商:Rochester Electronics LLC 功能描述:HI SPD, LOW PWR VIDEO AMP - Tape and Reel |
| AD818AR-REEL7 | 功能描述:IC VIDEO OPAMP LP 8-SOIC RoHS:否 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 标准包装:1,000 系列:- 应用:驱动器 输出类型:差分 电路数:3 -3db带宽:350MHz 转换速率:1000 V/µs 电流 - 电源:14.5mA 电流 - 输出 / 通道:60mA 电压 - 电源，单路/双路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 供应商设备封装:20-QFN 裸露焊盘（4x4） 包装:带卷 (TR) |
| AD818ARZ | 功能描述:IC VIDEO OPAMP LP 8-SOIC RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:TFT-LCD 面板：VCOM 驱动器 输出类型:满摆幅 电路数:1 -3db带宽:35MHz 转换速率:40 V/µs 电流 - 电源:3.7mA 电流 - 输出 / 通道:1.3A 电压 - 电源，单路/双路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 供应商设备封装:8-uMax-EP 包装:管件 |
| AD818ARZ-REEL | 功能描述:IC VIDEO OPAMP LP 8-SOIC T/R RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 标准包装:1,000 系列:- 应用:驱动器 输出类型:差分 电路数:3 -3db带宽:350MHz 转换速率:1000 V/µs 电流 - 电源:14.5mA 电流 - 输出 / 通道:60mA 电压 - 电源，单路/双路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 供应商设备封装:20-QFN 裸露焊盘（4x4） 包装:带卷 (TR) |
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