典型集成运放F007电路简介

这就要求运放有好的共模抑制能力。
若将反馈电阻 Rf 和 R1 电阻去掉，就成为图 6-23b 所示的电路，该电路的输 出全部反馈到输入端，是电压串联负反馈。有 R1=∞、Rf=0 可知 vo=vi ，就是输 出电压跟随输入电压的变化，简称电压跟随器。
由以上分析，在分析运算关系时，应该充分利用“虚断”“虚短”概念，首
由于同相端接地，故反相端为“虚地”。上式可写为
因此，输出电压 uO 与输入电压 uI1、uI2、uI3 之间的关系为
即电路可完成下列数学运算
y＝－（a1x1＋a2x2＋a3x3）
从同相端与反相端外接电阻必须平衡的条件出发，同相输入端电阻 的阻值应 为
（2）．同相输入加法电路
＝R1//R2//R3//RF
、失调电流温漂
2、运放的线性应用 运放的应用首先是构成各种运算电路，在运算电路中，以输入电压自变量，
以输出电压作为函数，当输入电压发生变化时，输出电压反映输入电压某种运算 的结果，因此，运放必须工作在线性区，在深度负反馈条件下，利用反馈网络可 以实现各种数学运算。
本节中的运放都是理想运放，就是说在分析时，注意使用“虚断”“虚短” 概念。
（5-1-18） 该电路有很高的输入电阻。为了提高抑制共模信号的能力，要求运放具有较 高的共模抑制比。此外，应严格选配电阻。
11
（2）．利用差分输入的减法电路
电路如图 5-1-12 所示，利用叠加定理即可以很方便的求出输出与输入间的 关系。
图 5-1-12 令同相端输入信号为零，得
差分输入减法电路
可以看出同相输入加法电路是同相比例运算电路的扩展。由同相比例运 算电路式（5-1-5）可得出
8
利用叠加定理，可求出 u+与 uI1、uI2、uI3 之间的关系 则输出电压为

Ｆ００７型通用运算放大器概述：Ｆ００７是仿国外μＡ７４１型全补偿通用运放，不需外接补偿。

广泛用于模拟运算，电压比较器、程序控制、信号的放大处理交换等电子电路中。

特点：·不需要外部频率补偿。

·无阻塞和振荡现象。

·输入有过压保护。

·输出有过载保护。

封装外形图（管脚朝下）基本接线图tda2030基本介绍：TDA2030A是德律风根生产的音频功放电路，采用V型5 脚单列直插式塑料封装结构。

如图1所示，按引脚的形状引可分为H型和V型。

该集成电路广泛应用于汽车立体声收录音机、中功率音响设备，具有体积小、输出功率大、失真小等特点。

并具有内部保护电路。

意大利SGS公司、美国RCA编辑本段注意事项：[1].TDA2030A具有负载泄放电压反冲保护电路，如果电源电压峰值电压40V的话，那么在5脚与电源之间必须插入LC滤波器，二极管限压（5脚因为任何原因产生了高压，一般是喇叭的线圈电感作用，使电压等于电源的电压）以保证5脚上的脉冲串维持在规定的幅度内。

[2].热保护：限热保护有以下优点，能够容易承受输出的过载（甚至是长时间的），或者环境温度超过时均起保护作用。

[3].与普通电路相比较，散热片可以有更小的安全系数。

万一结温超过时，也不会对器件有所损害，如果发生这种情况，Po=（当然还有Ptot）和Io就被减少。

[4].印刷电路板设计时必须较好的考虑地线与输出的去耦，因为这些线路有大的电流通过。

[5].装配时散热片与之间不需要绝缘，引线长度应尽可能短，焊接温度不得超过260℃，12秒。

[6].虽然TDA2030A所需的元件很少，但所选的元件必须是品质有保障的元件。

TDA2。

ui1 ui2
-
Δ A
+
+
uo
开环差模电压增益Aod -----运放开环时输出电压与输入差模电压之比,常以dB表 示。 Aod=u0/(ui2-ui1)
一般运放可达60dB，高精度运放可达140dB。 共模抑制比KCMR -----差模电压放大倍数与共模电压放大倍数之比,常以dB 表示。 KCMR=|Aod/Aoc|，或KCMR=20log|Aod/Aoc| (dB) 一般运放可达80dB，高精度运放可达160dB。 差模输入电阻rid -----输入差模信号时的输入电阻，可达MΩ数量级。
IO B1 B2
Rb IB2
+
+
uo
集成运算放大器简介（5）
转换速率SR 指运放在闭环状态下，输 入为大信号时，输出电压对 通用型 -----电路结构简单、性能适中、价格便宜。 时间的变化率，即， SR=|du/dt| 高精度型 -----低漂移、低噪声、低失调。
集成运算放大器的分类
集成运放 可分为
集成运算放大器 =
反相 输入 端
ui1 ui2
为什么要加 具有高电压放大倍数的直接耦合多级放大电 正负电源？ 输出 端
路
- 输 入 + 级
中 间 级
+U Δ A + uo
输 出 级
uo 符号
ui1 ui2
-
同相 输入 端
+
偏置电路
-U
输入级：多采用差动放大电路，以抑制零漂、提供两个输入端。 中间级：多采用共射放大电路，以提供高电压放大倍数。注意：实际运放在
低功耗型 -----静态功耗低（小于毫瓦级），可在 低电源下工作。

10 mm (0.40 inch) Seven Segment DisplaysTechnical DataFeatures• Industry Standard Size• Industry Standard Pinout 7.6 mm (0.3 inch) DIP Single 15.24 mm (0.6 inch) DIP Dual Leads on 2.54 mm(0.1 inch) Centers• Choice of ColorsRed, AlGaAs Red, High Efficiency Red, Orange, Yellow, Green• Excellent Appearance Evenly Lighted Segments Mitered Corners on Segments Gray Package Gives Optimum Contrast±50° Viewing Angle • Design FlexibilityCommon Anode orCommon CathodeSingle and Dual DigitsRight Hand Decimal Point±1. Overflow Character• Categorized for LuminousIntensityYellow and Green Categorizedfor ColorUse of Like Categories Yields aUniform Display• High Light Output• High Peak Current• Excellent for Long DigitString MultiplexingHDSP-F00x SeriesHDSP-F15x SeriesHDSP-F20x SeriesHDSP-F30x SeriesHDSP-F40x SeriesHDSP-F50x SeriesHDSP-G00x SeriesHDSP-G15x SeriesHDSP-G20x SeriesHDSP-G30x SeriesHDSP-G40x SeriesHDSP-G50x Series• Intensity and ColorSelection Option• Sunlight Viewable AlGaAsAlGaAs Red Red[1]HER Orange Yellow Green PackageHDSP-HDSP-HDSP-HDSP-HDSP-HDSP-Description DrawingF001F151F201F401F301F501Common Anode Right Hand Decimal AF003F153F203F403F303F503Common Cathode Right Hand Decimal BF007F157F207F407F307F507Common Anode ±1. Overflow CF008F158F208F408F308F508Common Cathode ±1. Overflow DG001G151G201G401G301G501Two Digit Common AnodeRight Hand Decimal E G003G153G203G403G303G503Two Digit Common CathodeRight Hand Decimal F DevicesNote:1. These displays are recommended for high ambient light operation. Please refer to the HDSP-F10X data sheet for low currentoperation.元器件交易网DescriptionThe 10 mm (0.40 inch) LED seven segment displays are Agilent’s most space-efficient character size. They are designed for viewing distances up to 4.5metres (15 feet). These devicesuse an industry standard sizepackage and pinout. The dualnumeric, single numeric, and ±1.overflow devices feature a righthand decimal point. All devicesare available as either commonanode or common cathode.Typical applications includeinstruments, point of saleterminals, and appliances.Package DimensionsInternal Circuit DiagramHOLE PATTERN FOR PCB LAYOUT TO ACHIEVE UNIFORM 0.450 IN. DIGIT TO DIGIT PITCH. FOR HDSP-FXXX TO HDSP-GXXX.Electrical/Optical Characteristics at T A = 25°C Absolute Maximum RatingsRed AlGaAs Red HER/Orange Yellow Green HDSP-HDSP-HDSP-HDSP-HDSP-F00X/G00X F15X/G15X F20X/G20X/F30X/G30X F50X/G50X DescriptionSeriesSeriesG40X SeriesSeriesSeriesUnits Average Power per Segment or DP 829610580105mW Peak Forward Current per 150[1]160[3]90[7]60[7]90[9]mA Segment or DPDC Forward Current per 25[2]40[4]30[6]20[8]30[10]mA Segment or DPOperating Temperature Range -40 to +100-20 to +100[11]-40 to +100°C Storage Temperature Range -55 to +100°C Reverse Voltage per 3.0VSegment or DPLead Solder Temperature for 3Seconds (1.59 mm [0.63 in.]260°Cbelow seating plane)Notes:1. See Figure 1 to establish pulsed conditions.2. Derate above 80°C at 0.63 mA/°C.3. See Figure 2 to establish pulsed conditions.4. Derate above 46°C at 0.54 mA/°C.5. See Figure 7 to establish pulsed conditions.6. Derate above 53°C at 0.45 mA/°C.7. See Figure 8 to establish pulsed conditions.8. Derate above 81°C at 0.52 mA/°C.9. See Figure 9 to establish pulsed conditions.10. Derate above 39°C at 0.37 mA/°C.11. For operation below -20°C, contact your local Agilentcomponents sales office or an authorized distributor.Device SeriesParameterSymbol Min.Typ.Max.Units Test Conditions Luminous Intensity/Segment [1,2]I V 6501200µcdI F = 20 mA (Digit Average)Forward Voltage/Segment or DPV F 1.6 2.0V I F = 20 mAHDSP-Peak Wavelength λPEAK 655nm F00X/G00XDominant Wavelength [3]λd 640nm Reverse Voltage/Segment or DP [4]V R 3.012V I F = 100 µATemperature Coefficient of ∆V F /°C -2mV/°CV F /Segment or DP Thermal Resistance LED R θJ-PIN320°C/W/SegJunction-to-PinRedAlGaAs RedDeviceSeries Parameter Symbol Min.Typ.Max.Units Test Conditions Luminous Intensity/Segment[1,2,5]I V7.515.0mcd I F = 20 mA(Digit Average)Forward Voltage/Segment or DP V F 1.8 2.2V I F = 20 mA HDSP-Peak WavelengthλPEAK645nmF15X/G15X Dominant Wavelength[3]λd637nmReverse Voltage/Segment or DP[4]V R 3.015V I R = 100 µATemperature Coefficient of∆V F/°C-2mV/°CV F/Segment or DPThermal Resistance LED RθJ-PIN320°C/W/SegJunction-to-PinHigh Efficiency RedDeviceSeries Parameter Symbol Min.Typ.Max.Units Test Conditions Luminous Intensity/Segment[1,2]I V4201200µcd I F = 5 mA(Digit Average)Forward Voltage/Segment or DP V F 2.0 2.5V I F = 20 mA HDSP-Peak WavelengthλPEAK635nmF20X/G20X Dominant Wavelength[3]λd626nmReverse Voltage/Segment or DP[4]V R 3.030V I R = 100 µATemperature Coefficient of∆V F/°C-2mV/°CV F/Segment or DPThermal Resistance LED RθJ-PIN320°C/W/SegJunction-to-PinOrangeYellowDevice SeriesParameterSymbolMin.Typ.Max.Units Test Conditions Luminous Intensity/Segment [1,2]290800µcdI F = 5 mA(Digit Average)I V Forward Voltage/Segment or DPV F 2.2 2.5V I F = 20 mAHDSP-Peak Wavelength λPEAK 583nm F30X /G30XDominant Wavelength [3,6]λd 581.5586592.5nm Reverse Voltage/Segment or DP [4]V R 3.040V I R = 100 µA Temperature Coefficient of ∆V F /°C -2mV/°CV F /Segment or DP Thermal Resistance LED R θJ-PIN320°C/W/SegJunction-to-PinDevice SeriesParameterSymbol Min.Typ.Max.Units Test Conditions Luminous Intensity/Segment [1,2]I V 4201200µcdI F = 5 mA(Digit Average)Forward Voltage/Segment or DPV F 2.0 2.5V I F = 20 mAPeak Wavelength l PEAK 600nm Dominant Wavelength [3]l d 603nm Reverse Voltage/Segment or DP [4]V R 3.030V I R = 100 µATemperature Coefficient of ∆V F /°C -2mV/°CV F /Segment or DP Thermal Resistance LED Rl\q J-PIN320°C/W/SegJunction-to-PinHDSP-F40X/G40XHigh Performance GreenDevice Test Series Parameter Symbol Min.Typ.Max.Units Conditions Luminous Intensity/Segment[1,2]I V10303500µcd I F = 10 mA(Digit Average)Forward Voltage/Segment or DP V F 2.1 2.5V I F = 10 mA HDSP-Peak WavelengthλPEAK566nmF50X/G50X Dominant Wavelength[3,6]λd571577nmReverse Voltage/Segment or DP[4]V R 3.050V I R = 100 µATemperature Coefficient of∆V F/°C-2mV/°CV F/Segment or DPThermal Resistance LED RθJ-PIN320°C/W/SegJunction-to-PinNotes:1. Case temperature of device immediately prior to the intensity measurement is 25°C.2. The digits are categorized for luminous intensity. The intensity category is designated by a letter on the side of the package.3. The dominant wavelength, λd, is derived from the CIE chromaticity diagram and is that single wavelength which defines the color ofthe device.4. Typical specification for reference only. Do not exceed absolute maximum ratings.5. For low current operation, the AlGaAs HDSP-F10X, G10X series displays are recommended. They are tested at 1 mAdc/segment and are pin for pin compatible with the HDSP-F15X/G15X series.6. The Yellow (HDSP-F30X/G30X) series and Green (HDSP-F50X/G50X) series displays are categorized for dominant wavelength. Thecategory is designated by a number adjacent to the luminous intensity category letter.Figure 1. Maximum Tolerable Peak Current vs. Pulse Duration – Red.Figure 5. Relative Luminous Intensity vs. DC Forward Current.Figure 6. Relative Efficiency (Luminous Intensity per Unit Current) vs. Peak Current.RED, AlGaAs RedFigure 2. Maximum Tolerable Peak Current vs. PulseDuration – AlGaAs Red.Figure 3. Maximum Allowable DC Current vs. Ambient Temperature.Figure 4. Forward Current vs. Forward Voltage.HER, Orange, Yellow, GreenFigure 7. Maximum Tolerable Peak Current vs. Pulse Duration – HER, Orange.Figure 8. Maximum Tolerable Peak Current vs. PulseDuration – Yellow.Figure 11. Forward Current vs. ForwardVoltage Characteristics.Figure 12. Relative Luminous Intensity vs. DCForward Current.Figure 9. Maximum Tolerable Peak Current vs. PulseDuration – Green.Figure 10. Maximum Allowable DC Current vs.Ambient Temperature.元器件交易网Figure 13. Relative Efficiency (Luminous Intensity perUnit Current) vs. Peak Current.Contrast EnhancementFor information on contrastenhancement please seeApplication Note 1015.Soldering/CleaningCleaning agents from the ketonefamily (acetone, methyl ethylketone, etc.) and from thechlorinated hydrocarbon family(methylene chloride, trichloro-ethylene, carbon tetrachloride,etc.) are not recommended forcleaning LED parts. All of thesevarious solvents attack or dissolvethe encapsulating epoxies used toform the package of plastic LEDparts.For further information onsoldering LEDs please refer toApplication Note 1027.元器件交易网Data subject to change.Copyright © 1999 Agilent Technologies, Inc.Obsoletes 5952-3428 (11/90)5963-7393E (11/99)。