- 您现在的位置：买卖IC网 > PDF目录30759 > LMH6644MAXEP/NOPB (NATIONAL SEMICONDUCTOR CORP) 1 CHANNEL, VIDEO AMPLIFIER, PDSO14 PDF资料下载
参数资料
| 型号： | LMH6644MAXEP/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDSO14 |
| 封装： | PLASTIC, SOIC-14 |
| 文件页数： | 8/21页 |
| 文件大小： | 966K |
| 代理商： | LMH6644MAXEP/NOPB |
Application Notes
CIRCUIT DESCRIPTION
The LMH664XEP family is based on National Semiconduc-
tor’s proprietary VIP10 dielectrically isolated bipolar process.
This device family architecture features the following:
Complimentary bipolar devices with exceptionally high f
t
(
8GHz) even under low supply voltage (2.7V) and low
bias current.
A class A-B “turn-around” stage with improved noise,
offset, and reduced power dissipation compared to simi-
lar speed devices (patent pending).
Common Emitter push-push output stage capable of
75mA output current (at 0.5V from the supply rails) while
consuming only 2.7mA of total supply current per chan-
nel. This architecture allows output to reach within milli-
volts of either supply rail.
Consistent performance from any supply voltage (3V-
10V) with little variation with supply voltage for the most
important specifications (e.g. BW, SR, I
OUT, etc.)
Significant power saving (
40%) compared to competi-
tive devices on the market with similar performance.
Application Hints
This Op Amp family is a drop-in replacement for the AD805X
family of high speed Op Amps in most applications. In addi-
tion, the LMH664XEP will typically save about 40% on power
dissipation, due to lower supply current, when compared to
competition. All AD805X family’s guaranteed parameters are
included in the list of LMH664XEP guaranteed specifications
in order to ensure equal or better level of performance.
However, as in most high performance parts, due to subtle-
ties of applications, it is strongly recommended that the
performance of the part to be evaluated is tested under
actual operating conditions to ensure full compliance to all
specifications.
With 3V supplies and a common mode input voltage range
that extends 0.5V below V
, the LMH664XEP find applica-
tions in low voltage/low power applications. Even with 3V
supplies, the 3dB BW (@ A
V = +1) is typically 115MHz with
a tested limit of 80MHz. Production testing guarantees that
process variations with not compromise speed. High fre-
quency response is exceptionally stable confining the typical
-3dB BW over the industrial temperature range to ±2.5%.
As can be seen from the typical performance plots, the
LMH664XEP output current capability (
75mA) is enhanced
compared to AD805X. This enhancement, increases the
output load range, adding to the LMH664XEP’s versatility.
Because of the LMH664XEP’s high output current capability
attention should be given to device junction temperature in
order not to exceed the Absolute Maximum Rating.
This device family was designed to avoid output phase
reversal. With input overdrive, the output is kept near supply
rail (or as closed to it as mandated by the closed loop gain
setting and the input voltage). See Figure 1:
However, if the input voltage range of 0.5V to 1V from V
+ is
exceeded by more than a diode drop, the internal ESD
protection diodes will start to conduct.The current in the
diodes should be kept at or below 10mA.
Output overdrive recovery time is less than 100ns as can be
seen from Figure 2 plot:
20089442
FIGURE 1. Input and Output Shown with CMVR
Exceeded
20089443
FIGURE 2. Overload Recovery Waveform
LMH6642EP/LMH6643EP/LMH6644EP
Enhanced
Plastic
www.national.com
16
相关PDF资料 |
PDF描述 |
|---|---|
| LMH6643MDC | 2 CHANNEL, VIDEO AMPLIFIER, UUC |
| LMH6643MWC | 2 CHANNEL, VIDEO AMPLIFIER, UUC |
| LMH6702J-QML/NOPB | 1 CHANNEL, VIDEO AMPLIFIER, CDIP8 |
| LMH6702WG-QML/NOPB | 1 CHANNEL, VIDEO AMPLIFIER, CDSO10 |
| LMH6702WG-QMLV | 1 CHANNEL, VIDEO AMPLIFIER, CDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LMH6644MT | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| LMH6644MT/NOPB | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| LMH6644MTX | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| LMH6644MTX/NOPB | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| LMH6645 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:2.7V, 650レA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option |
发布紧急采购，3分钟左右您将得到回复。