PA88 Cirrus Logic Inc, PA88 Datasheet

IC PWR AMP 450V 100MA 8PIN TO3

PA88

Manufacturer Part Number
PA88
Description
IC PWR AMP 450V 100MA 8PIN TO3
Manufacturer
Cirrus Logic Inc
Series
Apex Precision Power™r
Datasheets

Specifications of PA88

Amplifier Type
Power
Number Of Circuits
1
Slew Rate
30 V/µs
Gain Bandwidth Product
2.1MHz
Current - Input Bias
5pA
Voltage - Input Offset
500µV
Current - Supply
1.7mA
Current - Output / Channel
100mA
Voltage - Supply, Single/dual (±)
30 V ~ 450 V, ±15 V ~ 225 V
Operating Temperature
-25°C ~ 85°C
Mounting Type
Through Hole
Package / Case
TO-3-8
Number Of Channels
1
Voltage Gain Db
111 dB
Common Mode Rejection Ratio (min)
90 dB
Input Offset Voltage
2 mV
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Maximum Dual Supply Voltage
+/- 225 V
Minimum Operating Temperature
- 25 C
Lead Free Status / RoHS Status
Lead free by exemption / RoHS compliant by exemption
Output Type
-
-3db Bandwidth
-
Lead Free Status / Rohs Status
 Details
Other names
598-1328

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PA88
Manufacturer:
APEX
Quantity:
32
Part Number:
PA886C02
Manufacturer:
FUJI
Quantity:
40
Part Number:
PA88A
Manufacturer:
a
Quantity:
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12 000
– IN
5
FEATURES
• HIGH VOLTAGE — 450V (±225V)
• LOW QUIESCENT CURRENT — 2mA
• HIGH OUTPUT CURRENT — 100mA
• PROGRAMMABLE CURRENT LIMIT
• LOW BIAS CURRENT — FET Input
APPLICATIONS
• PIEZOELECTRIC POSITIONING
• HIGH VOLTAGE INSTRUMENTATION
• ELECTROSTATIC TRANSDUCERS
• PROGRAMMABLE POWER SUPPLIES UP TO 440V
DESCRIPTION
operational amplifier designed for output currents up to 100mA.
Output voltages can swing up to ±215V with a dual supply
and up to +440 volts with a single supply. The safe operating
area (SOA) has no second breakdown limitations and can be
observed with all types of loads by choosing an appropriate cur-
rent limiting resistor. High accuracy is achieved with a cascode
input circuit configuration. All internal biasing is referenced to a
bootstrapped zener-MOSFET current source. As a result, the
PA88 features an unprecedented supply range and excellent
supply rejection. The MOSFET output stage is biased on for
linear operation. External compensation provides user flexibility.
film resistors, ceramic capacitors and semiconductor chips to
maximize reliability, minimize size and give top performance.
Ultrasonically bonded aluminum wires provide reliable inter-
connections 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 warranty. Please see
“General Operating Considerations” .
EQUIVALENT SCHEMATIC
PA88U
The PA88 is a high voltage, low quiescent current MOSFET
This hybrid circuit utilizes beryllia (BeO) substrates, thick
Q10A
Q6
http://www.cirrus.com
Q1
Q13
High Voltage Power Operational Amplifiers
Q2
Q7
Q10B
PA88, PA88A
P r o d u c t I n n o v a t i o n F r o m
P r o d u c t I n n o v a t i o n F r o m
Q4
+ IN
4
D1
D2
D19
COMP
7
Q16
Q11
8
Q8
Q17
Q12
Copyright © Cirrus Logic, Inc. 2009
Q9
(All Rights Reserved)
Q18
OUT
+V
CL
–V
3
2
1
6
S
S
TYPICAL APPLICATION
segmented mirror systems. The composite mirror may be
composed of hundreds of elements, each requiring focusing
under computer control. In such complex systems the PA88’s
advantage of low quiescent power consumption reduces
the costs of power supplies and cooling, while providing the
interface between the computer and the high voltage drive to
the piezo positioners.
EXTERNAL CONNECTIONS
+IN
–IN
COMPUTER
Piezo positioning may be applied to the focusing of
COMMAND
VOLTAGE
FOCUS
4
5
LOW POWER, PIEZOELECTRIC POSITIONING
+Vs
–Vs
3
6
TOP VIEW
R
IN
COMP
CL
2
PATENTED
7
R
CL
1
8
R
PA88 • PA88A
+V
–V
C
PA88
OUT
COMP
S
S
R
F
C
C
C
PHASE COMPENSATION
GAIN
C
APEX − PA88UREVN
100
10
20
PA88 • PA88A
1
C
SUPPLY VOLTAGE
PACKAGE STYLE CE
C
RATED FOR FULL
R
CL
3.3pf
68pf
33pf
15pf
C
= .7
C
PIEZO DRIVE
8-PIN TO-3
I
LIM
MAY 2009
V
100
100
100
OUT
R
C
W
W
W
1

Related parts for PA88

PA88 Summary of contents

Page 1

... ELECTROSTATIC TRANSDUCERS • PROGRAMMABLE POWER SUPPLIES UP TO 440V DESCRIPTION The PA88 is a high voltage, low quiescent current MOSFET operational amplifier designed for output currents up to 100mA. Output voltages can swing up to ±215V with a dual supply and up to +440 volts with a single supply. The safe operating ...

Page 2

... RESISTANCE, DC, junction to case RESISTANCE, junction to air TEMPERATURE RANGE, case NOTES: * The specification of PA88A is identical to the specification for PA88 in applicable column to the left. 1. Unless otherwise noted supply voltage is typical rating. 2. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF. 3. Doubles for every 10° ...

Page 3

... FREQUENCY, F (Hz) POWER SUPPLY REJECTION 140 120 100 100 1K 10K .1M 1M FREQUENCY, F (Hz) PA88 • PA88A QUIESCENT CURRENT 2.5 2.25 2.0 1.75 1.5 1.25 1.0 0 100 200 300 450 TOTAL SUPPLY VOLTAGE, V (V) S POWER RESPONSE 500 250 125 100 ...

Page 4

... Unidirectional transzorbs prevent this, and it is desirable that they be both electrically and physically as close to the amplifier as possible. STABILITY The PA88 has sufficient phase margin to be stable with most capacitive loads at a gain more, using the rec- ommended phase compensation. ...

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. PA88U PA88 • PA88A 5 ...

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