参数资料
| 型号： | AD829ARZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/20页 |
| 文件大小： | 0K |
| 描述： | IC VIDEO OPAMP HS LN 8-SOIC |
| 标准包装： | 98 |
| 应用： | 电压反馈 |
| 电路数： | 1 |
| -3db带宽： | 120MHz |
| 转换速率： | 230 V/µs |
| 电流 - 电源： | 5.3mA |
| 电流 - 输出 / 通道： | 32mA |
| 电压 - 电源，单路/双路(±)： | ±4.5 V ~ 18 V |
| 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-SO |
| 包装： | 管件 |
| 产品目录页面： | 769 (CN2011-ZH PDF) |
Data Sheet
AD829
Rev. I | Page 13 of 20
supply voltages should be used. Figure 38 is a graphical extension
of Table 4, which shows the slew rate/gain trade-off for lower
closed-loop gains, when using the shunt compensation scheme.
Figure 38. Value of CCOMP and Slew Rate vs. Noise Gain
CURRENT FEEDBACK COMPENSATION
Bipolar, nondegenerated, single-pole, and internally
compensated amplifiers have their bandwidths defined as
COMP
e
T
C
q
kT
I
C
r
f
π
=
π
=
2
1
where:
fT is the unity-gain bandwidth of the amplifier.
I is the collector current of the input transistor.
CCOMP is the compensation capacitance.
re is the inverse of the transconductance of the input transistors.
kT/q approximately equals 26 mV at 27°C.
Because both fT and slew rate are functions of the same variables,
the dynamic behavior of an amplifier is limited. Because
COMP
C
I
Rate
Slew
2
=
then
q
kT
f
Rate
Slew
T
π
= 4
This shows that the slew rate is only 0.314 V/s for every mega-
hertz of bandwidth. The only way to increase the slew rate is to
increase the fT, and that is difficult because of process limitations.
Unfortunately, an amplifier with a bandwidth of 10 MHz can
only slew at 3.1 V/s, which is barely enough to provide a full
power bandwidth of 50 kHz.
The AD829 is especially suited to a form of current feedback
compensation that allows for the enhancement of both the full
power bandwidth and the slew rate of the amplifier. The voltage
gain from the inverting input pin to the compensation pin is
large; therefore, if a capacitance is inserted between these pins,
the bandwidth of the amplifier becomes a function of its feed-
back resistor and the capacitance. The slew rate of the amplifier
is now a function of its internal bias (2I) and the compensation
capacitance.
Table 4. Component Selection for Shunt Compensation
Follower Gain
Inverter Gain
R1 (Ω)
R2 (Ω)
CLEAD (pF)
CCOMP (pF)
Slew Rate (V/s)
3 dB Small Signal Bandwidth (MHz)
1
Open
100
0
68
16
66
2
1
1 k
5
25
38
71
5
4
511
2.0 k
1
7
90
76
10
9
226
2.05 k
0
3
130
65
20
19
105
2 k
0
230
55
25
24
105
2.49
0
230
39
100
99
20
2 k
0
230
7.5
00880-038
NOISE GAIN
C
COMP
(pF)
SLEW
RATE
(V/
s)
1
10
1
10
100
10
100
1k
100
SLEW RATE
CCOMP
VS = ±15V
相关PDF资料 |
PDF描述 |
|---|---|
| VE-B4Z-MX-B1 | CONVERTER MOD DC/DC 2V 30W |
| AD7543JNZ | IC DAC 12BIT SERIAL INPUT 16-DIP |
| VE-B4Z-MW-B1 | CONVERTER MOD DC/DC 2V 40W |
| AD5570ARS-REEL | IC DAC 16BIT SRL IN/VOUT 16-SSOP |
| AD8146ACPZ-R2 | IC DRIVER TRPL DIFF VID 24LFCSP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD829ARZ-REEL | 功能描述:IC VIDEO OPAMP HS LN 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) |
| AD829ARZ-REEL7 | 功能描述:IC VIDEO OPAMP HS LN 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) |
| AD829JCHIPS | 制造商:Analog Devices 功能描述: |
| AD829JN | 功能描述:IC VIDEO OPAMP LN HS 8-DIP 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) |
| AD829JNAD829JR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:High Speed Low Noise Video Op Amp(336.85 k) |
发布紧急采购，3分钟左右您将得到回复。