Apex PA15A, PA15 Datasheet

F

R

PA15

IN

R

PIEZO DRIVE

S

–V

S

+V

OUT

V

COMPUTER

FOCUS

COMMAND

VOLTAGE

CL

R

10

7

5

2

1

6

HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS

MICROTECHNOLOGY

HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX [phone]

FEA TURES

• HIGH VOLTAGE — 450V (±225V)

• LOW COST

• LOW QUIESCENT CURRENT — 3.0mA MAX

• HIGH OUTPUT CURRENT — 200mA

• PROGRAMMABLE CURRENT LIMIT

APPLICATIONS

• PIEZOELECTRIC POSITIONING

• HIGH VOLTAGE INSTRUMENTATION

• ELECTROSTATIC TRANSDUCERS

• PROGRAMMABLE POWER SUPPLIES UP TO 440V

DESCRIPTION

The PA15 is a high voltage, low quiescent current MOSFET
operational amplifier designed as a low cost solution for driving
continuous output currents up to 200mA and pulse currents up
to 350mA into capacitive loads. The safe operating area (SOA)
has no second breakdown limitations and can be observed for
all type loads by choosing an appropriate current limiting
resistor. The MOSFET input stage has integrated static and
differential mode protection. The MOSFET output stage is
biased AB for linear operation. External compensation pro­vides flexibility in choosing bandwidth and slew rate for the
application. The 10-pin power SIP package is electrically
isolated.

EQUIVALENT SCHEMATIC

6

+V

S

1

–IN

2

+IN

–V

S

5

R1 R2 C1 R3

Q1 Q2

Q6

Q5

R5

R8 R9

Q15

R11 R12

9

CC1

8

CC2

R6

Q3

Q8

Q12

Q16

R4

R7

Q11

Q13

R10

PA15 • PA15A

TYPICAL APPLICATION

LOW POWER, PIEZOELECTRIC POSITIONING

Piezo positioning may be applied to the focusing of seg­mented mirror systems. The composite mirror may be com­posed of hundreds of elements, each requiring focusing under
computer control. In such complex systems the PA15 reduces
the costs of power supplies and cooling with its advantages of
low cost and low quiescent power consumption while increas-

Q4

ILIM

7

10

OUT

Q14

ing circuit density with the SIP package.

EXTERNAL CONNECTIONS PACKAGE: SIP 02

12345678910

NC –V +V

–IN +IN

PHASE COMPENSATION

GAIN C

≥ 1 33pf 1KΩ

≥ 10 OPEN OPEN

SS

RCL =

C

I

LIM

R

C

C

OUTNC

C1

C2

C

C

C

R

CL

R

C

.6

I

CL

APEX MICROTECHNOLOGY CORPORATION • TELEPHONE [phone] • FAX [phone] • ORDERS [phone] • EMAIL [e-mail]

P A15 • PA15A

ABSOLUTE MAXIMUM RATINGS

SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS

SUPPLY VOLTAGE, +VS to –V
OUTPUT CURRENT, source, sink See SOA

S

450V

POWER DISSIPATION, continuous @ TC = 25°C 30W
INPUT VOLTAGE, differential ±25V
INPUT VOLTAGE, common mode ±V
TEMPERATURE, pin solder - 10s max 220°C
TEMPERATURE, junction

2

S

150°C
TEMPERATURE, storage –65 to +150°C
OPERATING TEMPERATURE RANGE, case –55 to +125°C

SPECIFICATIONS

PARAMETER TEST CONDITIONS

PA15

1

MIN TYP MAX MIN TYP MAX UNITS

PA15A

INPUT

OFFSET VOLTAGE, initial 2 10 .5 3 mV
OFFSET VOLTAGE, vs. temperature Full temperature range 15 50 5 20 µV/°C
OFFSET VOLTAGE, vs. supply 10 50 * * µV/V
OFFSET VOLTAGE, vs. time 75 * µV/√kh
BIAS CURRENT, initial 200 2000 * * pA
BIAS CURRENT, vs. supply 4 * pA/V
OFFSET CURRENT, initial 50 500 30 200 pA
INPUT IMPEDANCE, DC 10
INPUT CAPACITANCE 4 * pF
COMMON MODE VOLTAGE RANGE

3

±VS–15 * V

11

* Ω

COMMON MODE REJECTION, DC VCM = ±90V 80 98 * * dB
NOISE 10KHz BW, RS = 1KΩ, CC = OPEN 2 * µVrms

GAIN

OPEN LOOP, @ 15Hz RL = 2KΩ, CC = OPEN 94 111 * * dB
GAIN BANDWIDTH PRODUCT at 1MHz RL = 2KΩ, CC = OPEN 5.8 * MHz
POWER BANDWIDTH RL = 2KΩ, CC = OPEN 24 * kHz
PHASE MARGIN Full temperature range 60 * °

OUTPUT

VOLTAGE SWING

3

IO = ±200mA ±VS–15 ±VS–10 * * V
CURRENT, continuous ±200 * mA
SLEW RATE, AV = 100 CC = OPEN 20 20 30 V/µs
CAPACITIVE LOAD, AV = +1 Full temperature range 100 * pf
SETTLING TIME to .1% CC = OPEN, 2V step 2 * µs
RESISTANCE, no load 50 * Ω

POWER SUPPLY

VOLTAGE

5

See note 5 ±50 ±150 ±225 * * * V
CURRENT, quiescent, 2.0 3.0 * * mA

THERMAL

RESISTANCE, AC, junction to case

4

Full temperature range, F > 60Hz 2.5 * °C/W
RESISTANCE, DC, junction to case Full temperature range, F < 60Hz 4.2 * °C/W
RESISTANCE, junction to air Full temperature range 30 * °C/W
TEMPERATURE RANGE , Case Meets full range specifications –25 +85 * * °C

NOTES: * The specification of PA15A is identical to the specification for PA15 in applicable column to the left.

1. Unless otherwise noted: TC = 25°C, compensation = CC = 33pF, RC = 1KΩ, RCL = 0. DC input specifications are ± value given.
Power 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. +VS and –VS denote the positive and negative power supply rail respectively.

4. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz.

5. Derate max supply rating .625 V/°C below 25°C case. No derating needed above 25°C case.

CAUTION

The PA15 is constructed from MOSFET transistors. ESD handling procedures must be observed.
The exposed substrate contains beryllia (BeO). Do not crush, machine, or subject to temperatures in excess of 850°C to

avoid generating toxic fumes.

APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: [phone]