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參數(shù)資料
| 型號(hào)： | LM359N |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Dual, High Speed, Programmable, Current Mode Norton Amplifiers |
| 中文描述： | DUAL OP-AMP, 30 MHz BAND WIDTH, PDIP14 |
| 封裝： | DIP-14 |
| 文件頁(yè)數(shù)： | 11/24頁(yè) |
| 文件大?。?/td> | 742K |
| 代理商： | LM359N |
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Application Hints
(Continued)
3.
Determine maximum value for R
f
to provide stable DC
biasing
Optimum output DC level for maximum symmetrical swing
without clipping is:
R
f(MAX)
can now be found:
This value should not be exceeded for predictable DC bias-
ing.
4.
Select R
to be large enough so as not to appreciably
load the input termination resistance:
R
s
≥
750
; Let R
s
= 750
5.
Select R
f
for appropriate gain:
7.5 k
is less than the calculated R
f(MAX)
so DC predictability
is insured.
6.
Since R
= 7.5k, for the output to be biased to 5.1 V
DC
,
the reference current I
IN
(+) must be:
Now R
b
can be found by:
7.
Select C
to provide the proper gain for the 8 Hz mini-
mum input frequency:
A larger value of C
will allow a flat frequency response down
to 8 Hz and a 0.01 μF ceramic capacitor in parallel with C
i
will maintain high frequency gain accuracy.
8.
Test for peaking of the frequency response and add a
feedback “l(fā)ead” capacitor to compensate if necessary.
A NON-INVERTING VIDEO AMPLIFIER
For this case several design considerations must be dealt
with.
The output voltage (AC and DC) is strictly a function of
the size of the feedback resistor and the sum of AC and
DC “mirror current” flowing into the (+) input.
The amplifier always has 100% current feedback so ex-
ternal compensation is required. Add a small (1 pF–5 pF)
feedback capacitance to leave the amplifier’s open loop
response and slew rate unaffected.
To prevent saturating the mirror stage the total AC and
DC current flowing into the amplifier’s (+) input should be
less than 2 mA.
The output’s maximum negative swing is one diode
above ground due to the V
BE
diode clamp at the () input.
Final Circuit Using Standard 5%
Tolerance Resistor Values:
DS007788-18
Circuit Performance:
DS007788-19
V
o(DC)
= 5.1V
Differential phase error
<
1 for 3.58 MHz f
IN
Differential gain error
<
0.5% for 3.58 MHz f
IN
f
3 dB
low = 2.5 Hz
www.national.com
11
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM359N | 制造商:Texas Instruments 功能描述:IC AMP DUAL NORTON DIP14 359 |
| LM359N/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| LM359N/NOPB | 功能描述:IC AMP DUAL PROG CUR MODE 14-DIP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:帶卷 (TR) |
| LM35A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Precision Centigrade Temperature Sensors |
| LM35AH | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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