Datasheet > PA19A

PA19A

更新时间： 2024-09-13 03:43:35

品牌	Logo	应用领域
APEX		运算放大器
页数	文件大小	规格书
5页	291K
描述
VIDEO POWER OPERATIONAL AMPLIFIERS

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技术参数
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PA19A 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	HERMETIC SEALED, TO-3, 8 PIN	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.33.00.01
风险等级：	5.66	放大器类型：	OPERATIONAL AMPLIFIER
架构：	VOLTAGE-FEEDBACK	最大平均偏置电流 (IIB)：	0.00005 µA
25C 时的最大偏置电流 (IIB)：	0.00005 µA	最小共模抑制比：	70 dB
标称共模抑制比：	104 dB	频率补偿：	YES (AVCL>=1000)
最大输入失调电压：	500 µV	JESD-30 代码：	O-MBFM-P8
低-偏置：	YES	低-失调：	NO
负供电电压上限：	-40 V	标称负供电电压 (Vsup)：	-35 V
功能数量：	1	端子数量：	8
最高工作温度：	125 °C	最低工作温度：	-55 °C
封装主体材料：	METAL	封装等效代码：	CAN8/9,.5FL
封装形状：	ROUND	封装形式：	FLANGE MOUNT
峰值回流温度（摄氏度）：	NOT SPECIFIED	功率：	YES
电源：	+-35 V	认证状态：	Not Qualified
最小摆率：	0.0008 V/us	标称压摆率：	900 V/us
子类别：	Operational Amplifiers	最大压摆率：	120 mA
供电电压上限：	40 V	标称供电电压 (Vsup)：	35 V
表面贴装：	NO	技术：	BIPOLAR
温度等级：	MILITARY	端子面层：	Nickel (Ni)
端子形式：	PIN/PEG	端子位置：	BOTTOM
处于峰值回流温度下的最长时间：	NOT SPECIFIED	标称均一增益带宽：	100000 kHz
最小电压增益：	5000	Base Number Matches：	1

PA19A 数据手册

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FEATURES

• VERY FAST SLEW RATE — 900 V/µs

• POWER MOS TECHNOLOGY — 4A peak rating

• LOW INTERNAL LOSSES — 2V at 2A

• PROTECTED OUTPUT STAGE — Thermal Shutoff

• WIDE SUPPLY RANGE — ±15V TO ±40V

APPLICATIONS

8-PIN TO-3

• VIDEO DISTRIBUTION AND AMPLIFICATION

• HIGH SPEED DEFLECTION CIRCUITS

• POWER TRANSDUCERS UP TO 5 MHz

• MODULATION OF RF POWER STAGES

• POWER LED OR LASER DIODE EXCITATION

PACKAGE STYLE CE

TYPICAL APPLICATION

This fast power driver utilizes the 900V/µs slew rate of the

PA19 and provides a unique interface with a current output

DAC. By using the DAC’s internal 1KΩ feedback resistor,

temperature drift errors are minimized, since the temperature

drift coefﬁcients of the internal current source and the internal

feedback resistor of the DAC are closely matched. Gain of

DESCRIPTION

The PA19 is a high voltage, high current operational ampli-

ﬁer optimized to drive a variety of loads from DC through the

video frequency range. Excellent input accuracy is achieved

with a dual monolithic FET input transistor which is cascoded

bytwohighvoltagetransistorstoprovideoutstandingcommon

mode characteristics. All internal current and voltage levels

are referenced to a zener diode biased on by a current source.

As a result, the PA19 exhibits superior DC and AC stability

over a wide supply and temperature range.

to I is –6.5/mA. The DAC’s internal 1K resistor together

w^Oit^Uh^Tthe^INexternal 500Ω and 110Ω form a “tee network” in the

feedback path around the PA19. This effective resistance

equals 6.5KΩ . Therefore the entire circuit can be modeled as

6.5KΩ feedback resistor from output to inverting input and a

5mA current source into the inverting input of the PA19. Now

we see the familiar current to voltage conversion for a DAC

where V_OUT= –I_INx R_FEEDBACK

EQUIVALENT SCHEMATIC

Highspeedandfreedomfromsecondbreakdownisassured

by a complementary power MOS output stage. For optimum

linearity, especially at low levels, the power MOS transistors

are biased in a class A/B mode. Thermal shutoff provides

full protection against overheating and limits the heatsink

requirements to dissipate the internal power losses under

normal operating conditions. A built-in current limit of 0.5A

can be increased with the addition of two external resistors.

Transient inductive load kickback protection is provided by

two internal clamping diodes. External phase compensation

allows the user maximum ﬂexibility in obtaining the optimum

slew rate and gain bandwidth product at all gain settings. A

heatsink of proper rating is recommended.

Thishybridcircuitutilizesthickﬁlm(cermet)resistors,ceramic

capacitors, and silicon semiconductor chips to maximize reli-

ability,minimizesize,andgivetopperformance. Ultrasonically

bondedaluminumwiresprovidereliableinterconnectionsatall

operating temperatures. The 8-pin TO-3 package is hermeti-

cally sealed and electrically isolated. The use of compressible

thermal washers and/or improper mounting torque will void

the product warranty. Please see “General Operating Con-

siderations”.

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EXTERNAL CONNECTIONS

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APPLICATION

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APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com

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