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| 型号： | LMH6618MK/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 22/38页 |
| 文件大小： | 0K |
| 描述： | IC OP AMP SGL VF RRIO TSOT23-6 |
| 标准包装： | 1,000 |
| 系列： | PowerWise® |
| 放大器类型： | 电压反馈 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 57 V/µs |
| 增益带宽积： | 65MHz |
| -3db带宽： | 140MHz |
| 电流 - 输入偏压： | 1.5µA |
| 电压 - 输入偏移： | 100µV |
| 电流 - 电源： | 1.35mA |
| 电流 - 输出 / 通道： | 35mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 11 V，±1.35 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 供应商设备封装： | TSOT-23-6 |
| 包装： | 带卷 (TR) |
| 产品目录页面： | 1270 (CN2011-ZH PDF) |
| 配用： | 551600083-001-ND - BOARD FOR SOT23 LMH6611/18 |
| 其它名称： | LMH6618MK LMH6618MK-ND LMH6618MKTR |
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100k
1M
10M
100M
1G
FREQUENCY (Hz)
-18
-15
-12
-9
-6
-3
0
3
6
N
O
R
MAL
IZ
ED
I-V
G
AI
N
(d
B
)
CPD = 22 pF,
CF = 5.6 pF
CPD = 47 pF,
CF = 10 pF
CPD = 100 pF,
CF = 15 pF
CPD = 222 pF,
CF = 18 pF
SNOSAV7E – AUGUST 2007 – REVISED OCTOBER 2012
Figure 73. Frequency Response for Various Photodiode and Feedback Capacitors
When analyzing the noise at the output of the TIA, it is important to note that the various noise sources (i.e. op
amp noise voltage, feedback resistor thermal noise, input noise current, photodiode noise current) do not all
operate over the same frequency band. Therefore, when the noise at the output is calculated, this should be
taken into account. The op amp noise voltage will be gained up in the region between the noise gain’s zero and
pole (fZ and fP in Figure 72). The higher the values of RF and CT, the sooner the noise gain peaking starts and
therefore its contribution to the total output noise will be larger. It is obvious to note that it is advantageous to
minimize CIN by proper choice of op amp or by applying a reverse bias across the diode at the expense of
excess dark current and noise.
DIFFERENTIAL CABLE DRIVER FOR NTSC VIDEO
The LMH6618 and LMH6619 can be used to drive an NTSC video signal on a twisted-pair cable. Figure 74
shows the schematic of a differential cable driver for NTSC video. This circuit can be used to transmit the signal
from a camera over a twisted pair to a monitor or display located a distance. C1 and C2 are used to AC couple
the video signal into the LMH6619. The two amplifiers of the LMH6619 are set to a gain of 2 to compensate for
the 75
back termination resistors on the outputs. The LMH6618 is set to a gain of 1. Because of the DC bias
the output of the LMH6618 is AC coupled. Most monitors and displays will accept AC coupled inputs.
Copyright 2007–2012, Texas Instruments Incorporated
29
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LMH6618MKX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PowerWise㈢ 130 MHz, 1.25 mA RRIO Operational Amplifiers |
| LMH6618MKX/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 |
| LMH6619MA | 制造商:Texas Instruments 功能描述:OP Amp Dual GP R-R I/O 11V 8-Pin SOIC N Rail 制造商:Texas Instruments 功能描述:OP AMP, DUAL, 130 MHZ, POWERWISE 制造商:Texas Instruments 功能描述:OP AMP, DUAL, 130 MHZ, POWERWISE; Op Amp Type:High Speed; No. of Amplifiers:2; Slew Rate:57V/s; Supply Voltage Range:2.7V to 11V; Amplifier Case Style:SOIC; No. of Pins:8; Bandwidth:58MHz; Operating Temperature Min:-40C; Operating ;RoHS Compliant: Yes 制造商:Texas Instruments 功能描述:1.25mA RRIO Op Amp, LMH6619MA |
| LMH6619MA/NOPB | 功能描述:运算放大器 - 运放 125 Mhz 1.35 Vfb RRIO Amp 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 |
| LMH6619MAE | 制造商:Texas Instruments 功能描述:OP Amp Dual GP R-R I/O 11V 8-Pin SOIC N T/R |
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