Apex Digital PA40 User Manual
HIGH VOLTAGE POWER OPERATIONAL AMPLIFIER
MICROTECHNOLOGY
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
FEATURES
• MONOLITHIC MOS TECHNOLOGY
• LOW COST
• HIGH VOLTAGE OPERATION—250V
• LOW QUIESCENT CURRENT—2mA
• NO SECOND BREAKDOWN
• HIGH OUTPUT CURRENT—120 mA PEAK
APPLICATIONS
• TELEPHONE RING GENERATOR
• PIEZO ELECTRIC POSITIONING
• ELECTROSTATIC TRANSDUCER & DEFLECTION
• DEFORMABLE MIRROR FOCUSING
DESCRIPTION
The PA40 is a high voltage monolithic MOSFET operational
amplifi er achieving performance features previously found
only in hybrid designs while increasing reliability. Inputs are
protected from excessive common mode and differential
mode voltages. The safe operating area (SOA) has no second
breakdown limitations. External compensation provides the
user fl exibility in choosing optimum gain and bandwidth
for the application.
The PA40 is packaged in Apex's 7 LEAD TO220 package.
The metal back of the package is tied to –Vs. The 15 mil
minimum spacing of the TO220 package is adequate to
stand-off the 250V rating of the PA40. The user must insure
that a minimum of 11 mils spacing is maintained between
pins for the circuit board artwork. If spacing is less than 11
mils, the voltage must be derated.
TYPICAL APPLICATION
15V
2.5K + 15
10K 10K
7
ICL8038
8
*
* 1.5 µF @ 16Hz
1.2 µF @ 20Hz
1110
54
–15V
MUR120
6
2
82K
IN6300A
MUR120
140V
100K2.67K
IN6300A
.22
MUR130
3.3pF
2.2K
PA40
.22
–140V
90Vrms
100
330pf
MUR130
Telephone Ring Generator
PA40
EQUIVALENT SCHEMATIC
D1
Q1
1
–IN
D2 D3 D4 D5
2
+IN
Q11
Q5Q4
Q12
EXTERNAL CONNECTIONS
PHASE COMPENSATION
Gain C
≤ 1 18pF 2.2K
≥ 10 10pF 2.2K
≥ ≥30 3.3pF 2.2K
NOTE: At gains above 30, Rc and Cc
may be omitted.
COMP
COMP
R
C
6
7
Q6
Q8
Q13
SUB
C
3
+V
S
Q2
Q10
Q3
I
OUT
5
Q14
–V
S
4
The PA40 is set for a gain of 38.5 boosting the 2.33V signal
to 90V . The recommended compensation for gains above 30
is used. If capacitive loading is at least 330pF at all times, the
recommended snubber network may be omitted.
1234 567
- IN
+ IN
+VS
-VS
OUT
COMP (Rc)
COMP (Cc)
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
PA40
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +VS to –V
OUTPUT CURRENT, continuous within SOA 60 mA
S
250V
OUTPUT CURRENT, peak 120 mA
POWER DISSIPATION, continuous @ TC = 25°C 14W
INPUT VOLTAGE, differential ±16 V
INPUT VOLTAGE, common mode ±V
TEMPERATURE, pin solder – 10 sec 220°C
S
TEMPERATURE, junction2 150°C
TEMPERATURE, storage –65 to +150°C
TEMPERATURE RANGE, powered (case) –40 to +125°C
SPECIFICATIONS
PA40
PARAMETER TEST CONDITIONS1 MIN TYP MAX UNITS
INPUT
OFFSET VOLTAGE, initial 15 30 mV
OFFSET VOLT AGE, vs. temperature
4
Full temperature range 70 130 µV/°C
OFFSET VOLTAGE, vs supply 20 32 µV/V
OFFSET VOLTAGE, vs time 75 µV kh
BIAS CURRENT, initial 50 2
00
pA
BIAS CURRENT, vs supply 2 20 pA/V
OFFSET CURRENT, initial 50 200 pA
INPUT IMPEDANCE, DC 101
1
INPUT CAPACITANCE 5 pF
COMMON MODE, voltage range ±VS–12 V
COMMON MODE REJECTION, DC VCM = ±90V DC 84 94 dB
NOISE, broad band 10kHz BW, RS = 1K 50
NOISE, low frequency 1-10 Hz 110 µV p-p
µV RMS
GAIN
OPEN LOOP at 15Hz RL =
BANDWIDTH, open loop 1.6 MHz
5K 94 106 dB
POWER BANDWIDTH CC = 10pf, 280V p-p 26 kHz
PHASE MARGIN Full temperature range 60 °
OUTPUT
VOLTAGE SWING IO = 40mA ±VS–12
CURRENT, peak
5
±VS–10
V
120 mA
CURRENT, continuous 60 mA
SETTLING TIME to .1% CC = 10pF, 10V step, AV =
SLEW RATE CC = OPEN 40 V/µs
CAPACITIVE LOAD AV = +1 10 nF
RESISTANCE6, n
RESISTANCE6, 20
POWER SUPPLY
VOLTAGE
o
load RCL = 0 150
m
A load RCL = 0
3
See Note 3 ±50 ±125 V
10 12 µs
–
25
CURRENT, quiescent 1.6 2.0 mA
THERMAL
ANCE, AC junction to case6 F > 6
RESIST
ANCE, DC junction to case6 F < 6
RESIST
0Hz 5.9 6.85 °C/W
0Hz 7.7 8.9 °C/W
RESISTANCE, junction to air Full temperature range °C/W
TEMPERATURE RANGE, case Meets full range specifi cations –25 25 +85 °C
NOTES: 1. Unless otherwise noted TC = 25°C, CC = 18pF, RC = 2.2K. DC input specifi cations 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. Derate maximum supply voltage .5 V/°C below case temperature of 25°C. No derating is needed above TC
4. Sample tested by wafer to 95%.
= 25°C.
5. Guaranteed but not tested.
CAUTION
The PA40 is constructed from MOSFET transistors. ESD handling procedures must be observed.
APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739
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