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参数资料
| 型号： | PA84 |
| 厂商： | Electronic Theatre Controls, Inc. |
| 元件分类： | 运算放大器 |
| 英文描述： | POWER OPERATIONAL AMPLIFIERS |
| 中文描述： | 功耗运算放大器 |
| 文件页数： | 1/4页 |
| 文件大小： | 77K |
| 代理商： | PA84 |
APEX MICROTECHNOLOGY CORPORATION
TELEPHONE (520) 690-8600 FAX (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com
EXTERNAL CONNECTION
FEATURES
HIGH SLEW RATE — 200V/
μ
s
FAST SETTLING TIME — .1% in 1
μ
s (PA84S)
FULLY PROTECTED INPUT — Up to
±
150v
LOW BIAS CURRENT, LOW NOISE — FET Input
WIDE SUPPLY RANGE —
±
15V to
±
150V
APPLICATIONS
HIGH VOLTAGE INSTRUMENTATION
ELECTROSTATIC TRANSDUCERS & DEFLECTION
PROGRAMMABLE POWER SUPPLIES UP TO 290V
ANALOG SIMULATORS
DESCRIPTION
The PA84 is a high voltage operational amplifier designed for
output voltage swings up to
±
145V with a dual supply or 290V
with a single supply. Two versions are available. The new
PA84S, fast settling amplifier can absorb differential input over-
voltages up to
±
50V while the established PA84 and PA84A can
handle differential input overvoltages of up to
±
300V. Both
versions are protected against common mode transients and
overvoltages up to the supply rails. High accuracy is achieved
with a cascode input circuit configuration. All internal biasing is
referenced to a zener diode fed by a FET constant current
source. As a result, the PA84 features an unprecedented supply
range and excellent supply rejection. The output stage is biased-
on for linear operation. External phase compensation allows for
user flexibility in obtaining the maximum slew rate. Fixed current
limits protect these amplifiers against shorts to common at
supply voltages up to 150V. For operation into inductive loads,
two external flyback pulse protection diodes are recommended.
However, a heatsink may be necessary to maintain the proper
case temperature under normal operating conditions.
This hybrid integrated circuit utilizes a beryllia (BeO) sub-
strate, thick film resistors, ceramic capacitors and semicon-
ductor chips to maximize reliability, minimize size and give top
performance. Ultrasonically bonded aluminum wires provide
reliable interconnections at all operating temperatures. The 8-
pin TO-3 package is hermetically sealed and electrically
isolated. The use of compressible thermal isolation washers
and/or improper mounting torque will void the product war-
ranty. Please see “General Operating Considerations”.
TOP VIEW
1
2
3
4
5
6
7
–
V
S
8
+IN
–
IN
BAL
COMP
OUT
BAL
+V
S
NOTES:
1. Phase Compensation required
for safe operation.
2. Input offset trimpot optional.
Recommended value 100K .
R
C
C
C
PHASE COMPENSATION
GAIN
1
10
100
1000
C
C
10nF
500pF
50pF
none
R
C
200
2K
20K
none
TYPICAL APPLICATION
The PA84 is ideally suited to driving ink jet control units
(often a piezo electric device) which require precise pulse
shape control to deposit crisp clear date or lot code information
on product containers. The external compensation network
has been optimized to match the gain setting of the circuit and
the complex impedance of the ink jet control unit. The combi-
nation of speed and high voltage capabilities of the PA84 form
ink droplets of uniform volume at high production rates to
enhance the value of the printer.
EQUIVALENT SCHEMATIC
+150V
–
150V
100K
PA84
±
10V
50K
INK JET
CONTROL
10K
DAC
......
......
......
4.7K
390pF
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
M I C R O T E C H N O L O G Y
POWER OPERATIONAL AMPLIFIERS
PA84 PA84A PA84S
2
7
4
3
5
6
1
Q1
Q2
D1
D2
Q15
Q12B
Q9
C4
Q8
Q13
Q4
Q3
C1
Q16
Q17
Q5
C5
Q12A
Q14
C6
Q10
Q6
Q7
Q11
8
*
*
*
*
*
*
相关PDF资料 |
PDF描述 |
|---|---|
| PA84A | POWER OPERATIONAL AMPLIFIERS |
| PA84S | POWER OPERATIONAL AMPLIFIERS |
| PA85M | Voltage-Feedback Operational Amplifier |
| PA85 | HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS |
| PA85A | HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PA84-48B | 制造商:EETools 功能描述:PROGRAMMER ADAPTER DIP48 PLCC84 |
| PA847C04 | 制造商:FUJI 制造商全称:Fuji Electric 功能描述:Schottky barrier diode |
| PA84A | 功能描述:运算放大器 - 运放 Linear OpAmp, 200V/uS "A" Grade 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 |
| PA84M | 功能描述:运算放大器 - 运放 Linear OpAmp 200V/uS M Grade 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 |
| PA84M/883 | 功能描述:运算放大器 - 运放 Linear OpAmp 200V/uS M Grade 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 |
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