PA81J

Operating Supply Voltage :
Output Current :
Packaging :
Number of Channels : 1
Input Offset Voltage : 3 mV
Shutdown : No
Slew Rate : 20 V/us
Common Mode Rejection Ratio (Min) : 110 dB
Mounting Style : Through Hole
Maximum Operating Temperature : + 70 C
Input Bias Current (Max) : 50 pA
Package / Case : TO-3


Features:

• HIGH VOLTAGE OPERATION - ±150V (PA82J)
• HIGH OUTPUT CURRENT - ±30mA (PA81J)
• LOW BIAS CURRENT, LOW NOISE - FET Input




Application

• HIGH IMPEDANCE BUFFERS UP TO ±140V
• ELECTROSTATIC TRANSDUCER & DEFLECTION
• PROGRAMMABLE POWER SUPPLIES TO ±145V
• BIOCHEMISTRY STIMULATORS
• COMPUTER TO VACUUM TUBE INTERFACE




Pinout






Specifications

SUPPLY VOLTAGE, +VS to VS	200V
OUTPUT CURRENT, within SOA	Internally Limited
POWER DISSIPATION, internal	11.5W
INPUT VOLTAGE, differential	±150V
INPUT VOLTAGE, common mode	±VS
TEMPERATURE, pin solder-10 sex	300
TEMPERATURE, junction	150
TEMPERATURE RANGE, storage	65 to 125
OPERATING TEMPERATURE RANGE, case	55 to 125

Description

The PA80 series of high voltage operation amplifiers provides an extremely wide range of supply capability with two overlapping products. High accuracy of PA81J is achieved with a cascode input circuit configuration. All internal biasing  of PA81J is referenced to a zener diode. As a result, these models offer outstanding common mode and power supply rejection. The output stage operates in the class A/B mode for best linearity. Internal phase compensation of PA81J assures stability at all gain settings witout external components. Fixed internal current limits protect these amplifiers against a short circuit to common at most supply voltages. For sustained high energy flyback, external fast recovery diodes should be used. However, a heatsink may be necessary to maintain the proper case temperature under normal operating conditions.

This hybrid circuit utilizes thick film resistors PA81J, ceramic capacitors and silicon semiconductors 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 (see Package Outlines)of PA81J is hermetically sealed and isolated from the internal circuits. The use of compressible thermal washers voids the warranty.

The PA81J is a kind of high voltage operation amplifier. PA81J provides an extremely wide range of supply capability with two overlapping products. All internal biasing of PA81J is referenced to a zener diode. Besides, the hybrid circuit uses thick film resistors, ceramic capacitors and silicon semiconductors to maximize reliability, minimize size and give top performance. The typical applications of PA81J include high impedance buffers up to ±40 V, electrostatic transducer & deflection, programmable power supplies to ±45 V, biochemistry stimulators and computer to vacuum tube interface.

There are some features of PA81J as follows: (1)high output current: ±30 mA; (2)low bias current, low noise: FET input.

The following of PA81J is about the absolute maximum ratings: (1)supply voltage, +VS to -VS: 200V; (2)output current, within SOA: internally limited; (3)power dissipation, internal: 11.5W; (4)input voltage, differential: ±150 V; (5)input voltage, common mode: ±VS; (6)temperature, pin solder-10 sec: 300; (7)temperature, junction: 150; (8)temperature range, storage: -65 to +125; (9)operating temperature range, case: -55 to +125.

Parameters:

Technical/Catalog Information	PA81J
Vendor	Cirrus Logic Inc
Category	Integrated Circuits (ICs)
Packaging	Tube
Amplifier Type	Power
Number of Circuits	1 - Single
Package / Case	TO-3-8
Slew Rate	20 V/s
Gain Bandwidth Product	5MHz
Current - Supply	6.5mA
Current - Output/Channel	30mA
Voltage - Supply, Single/Dual (±)	64 V ~ 150 V, ±32 V ~ 75 V
Output Type	-
-3db Bandwidth	-
Current - Input Bias	5pA
Operating Temperature	0°C ~ 70°C
Voltage - Input Offset	1500V
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	PA81J PA81J 598 1321 ND 5981321ND 598-1321