PA83 Cirrus Logic Inc, PA83 Datasheet

PA83

Manufacturer Part Number

PA83

Description

OP AMP HV 300V .075A TO-3-8 CE

Manufacturer

Cirrus Logic Inc

Series

Apex Precision Power™r

Datasheets

1.PA83.pdf (5 pages)

2.PA83.pdf (3 pages)

Specifications of PA83

Amplifier Type

Power

Number Of Circuits

Slew Rate

30 V/µs

Gain Bandwidth Product

5MHz

Current - Input Bias

5pA

Voltage - Input Offset

1500µV

Current - Supply

6mA

Current - Output / Channel

75mA

Voltage - Supply, Single/dual (±)

30 V ~ 300 V, ±15 V ~ 150 V

Operating Temperature

-25°C ~ 85°C

Mounting Type

Through Hole

Package / Case

TO-3-8

Number Of Channels

Voltage Gain Db

116 dB

Common Mode Rejection Ratio (min)

130 dB

Input Offset Voltage

3 mV

Maximum Operating Temperature

+ 85 C

Mounting Style

Through Hole

Maximum Dual Supply Voltage

+/- 150 V

Minimum Operating Temperature

- 25 C

Lead Free Status / RoHS Status

Request inventory verification / Request inventory verification

Output Type

-3db Bandwidth

Lead Free Status / Rohs Status

Details

Other names

598-1322

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PA83U

FEATURES

• LOW BIAS CURRENT, LOW NOISE — FET Input

• FULLY PROTECTED INPUT — Up to ±150V

• WIDE SUPPLY RANGE — ±15V to ±150V

APPLICATIONS

• HIGH VOLTAGE INSTRUMENTATION

• ELECTROSTATIC TRANSDUCERS & DEFLECTION

• PROGRAMMABLE POWER SUPPLIES UP TO 290V

• ANALOG SIMULATORS

DESCRIPTION

for output voltage swings up to ±145V with a dual (±) supply or

290V with a single supply. Its input stage is protected against

transient and steady state overvoltages up to and including

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 PA83 features an unprecedented supply range

and excellent supply rejection. The output stage is biased in

the class A/B mode for linear operation. Internal phase com-

pensation assures stability at all gain settings without need

for external components. Fixed current limits protect these

amplifiers against shorts to common at supply voltages up to

120V. 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.

(cermet) film resistors, ceramic capacitors and silicon 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 iso-

lated. The use of compressible thermal isolation washers and/or

improper mounting torque voids product warranty. Please see

Application Note 1 “General Operating Considerations” .

EXTERNAL CONNECTIONS

The PA83 is a high voltage operational amplifier designed

This hybrid circuit utilizes beryllia (BeO) substrates, thick

http://www.cirrus.com

NOTE:

1. Pin 8 not internally connected.

2. Input offset trimpot optional.

Recommended value of 100KΩ.

High Voltage Power Operational Amplifiers

BAL

–IN

PA83, PA83A

P r o d u c t I n n o v a t i o n F r o m

+IN

BAL

TOP VIEW

–V

N.C.

OUTPUT

TYPICAL APPLICATION

ance, they are often primarily capacitive at useful frequen-

cies. Due to this capacitance, the speed limitation for a given

transducer/amplifier combination may well stem from limited

current drive rather than power bandwidth restrictions. With

its drive capability of 75mA, the PA83 can drive transducers

having up to 2nF of capacitance at 40kHz at maximum output

voltage. In the event the transducer may be subject to shock

or vibration, flyback diodes, voltage clamps or other protection

networks must be added to protect the amplifier from high

voltages which may be generated.

EQUIVALENT SCHEMATIC

While piezo electric transducers present a complex imped-

SIMPLE PIEZO ELECTRIC TRANSDUCER DRIVE

OSCILLATOR

GATED

Q13

Q14

Q12A

Q15

3.57K

±5V

PA83 • PA83A

Q12B

Q10

PA83

–150V

+150V

100K

APEX − PA83UREVQ

PA83 • PA83A

PACKAGE STYLE CE

Q11

I =

Q16

8-PIN TO-3

∆V * C

MAY 2009

∆t

Q17

Related parts for PA83

PA83 Summary of contents

Page 1

... Due to this capacitance, the speed limitation for a given transducer/amplifier combination may well stem from limited current drive rather than power bandwidth restrictions. With its drive capability of 75mA, the PA83 can drive transducers having up to 2nF of capacitance at 40kHz at maximum output voltage. In the event the transducer may be subject to shock ...

Page 2

... RESISTANCE, case to air TEMP. RANGE, case (PA83/PA83A) NOTES: * The specification of PA83A is identical to the specification for PA83 in applicable column to the left. 1. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF. 2. The power supply voltage for all tests is the TYP rating, unless otherwise noted as a test condition. ...

Page 3

... TOTAL SUPPLY VOLTAGE, V (V) S POWER SUPPLY REJECTION 140 120 100 – 100 1K 10K .1M 1M FREQUENCY, F (Hz) PA83 • PA83A OUTPUT VOLTAGE SWING 100 120 OUTPUT CURRENT I (mA) O POWER RESPONSE 300 | + – 300V 200 2KΩ L 100 ...

Page 4

... PA83 • PA83A GENERAL Please read Application Note 1 "General Operating Consider- ations" which covers stability, supplies, heat sinking, mounting, current limit, SOA interpretation, and specification interpretation. Visit www.Cirrus.com for design tools that help automate tasks such as calculations for stability, internal power dissipation, current limit and heat sink selection. The " ...

Page 5

... Cirrus Logic, Cirrus, and the Cirrus Logic logo designs, Apex Precision Power, Apex and the Apex Precision Power logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners. PA83U PA83 • PA83A 5 ...

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