Apex PA08A, PA08 Datasheet
CL+
+V
+IN
–IN
–V
BAL
CL–
OUT
S
S
TOP VIEW
R
CL+
R
CL–
OUTPUT
1
2
3
4
5
6
7
8
R
S
R
T
()
R =
S
+
S
+V
S
–V TR /1.6
NOTE: Input offset voltage trim optional.
R = 10K Ω
MAX
T
POWER OPERATIONAL AMPLIFIERS
MICROTECHNOLOGY
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
FEA TURES
• WIDE SUPPLY RANGE — ±15V to ±150V
• PROGRAMMABLE OUTPUT CURRENT LIMIT
• HIGH OUTPUT CURRENT — Up to ±150mA
• LOW BIAS CURRENT — FET Input
APPLICATIONS
• HIGH VOLTAGE INSTRUMENTATION
• ELECTROSTATIC TRANSDUCERS & DEFLECTION
• PROGRAMMABLE POWER SUPPLIES UP TO 290V
• ANALOG SIMULATORS
PA08 • PA08A
TYPICAL APPLICATION
+132V
DESCRIPTION
The PA08 is a high voltage operational amplifier designed
for output voltage swings of up to ±145V with a dual (±) supply
or 290V with a single supply. 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 PA08 features an unprecedented
supply range and excellent supply rejection. The output
stage is biased-on for linear operation. Internal phase compensation assures stability at all gain settings. The safe
operating area (SOA) can be observed with all types of loads
by choosing the appropriate current limiting resistors. For
operation into inductive loads, two external flyback pulse
protection diodes are recommended. A heatsink may be
necessary to maintain the proper case temperature under
normal operating conditions.
This hybrid integrated circuit utilizes beryllia (BeO) substrate, thick film resistors, ceramic capacitors and semiconductor 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 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
3
110K
DAC
±1mA
+132V
PA08
-132V
8.2Ω
8.2Ω
-132V
+V
S
D.U.T.
-V
S
ATE PIN DRIVER
The PA08 as a pin driver is capable of supplying high test
voltages to a device under test (DUT). Due to the possibility of
short circuits to any terminal of the DUT, current limit must be
set to be safe when limiting with a supply to output voltage
differential equal to the amplifier supply plus the largest
magnitude voltage applied to any other pin of the DUT. In
addition, flyback diodes are recommended when the output of
the amplifier exits any equipment enclosure to prevent damage due to electrostatic discharges. Refer to Application Note
7 for details on accuracy considerations of this circuit.
EXTERNAL CONNECTIONS
7
Q1
Q5
Q8
5
Q12A Q12B
4
6
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
C4
Q15
Q2
Q9
D1
Q3
Q4
C3
C2
Q10
D2
Q11
Q16
C1
Q6
2
Q7
1
Q19
8
Q17
PA08 • PA08A
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +VS to –V
OUTPUT CURRENT, within SOA 200mA
S
300V
POWER DISSIPATION, internal at TC = 25°C 17.5W
INPUT VOLTAGE, differential ±50V
INPUT VOLTAGE, common mode ±V
TEMPERATURE, pin solder - 10s max 300°C
TEMPERATURE, junction
1
S
200°C
TEMPERATURE RANGE, storage –65 to +150°C
OPERATING TEMPERATURE RANGE, case –55 to +125°C
SPECIFICATIONS
PARAMETER TEST CONDITIONS
PA08
2
MIN TYP MAX MIN TYP MAX UNITS
PA08A
INPUT
OFFSET VOLTAGE, initial TC = 25°C ±.5 ±2 ±.25 ±.5 mV
OFFSET VOLTAGE, vs. temperature TC = –25°C to +85°C ±15 ±30 ±5 ±10 µV/°C
OFFSET VOLTAGE, vs. supply TC = 25°C ±.5 * 2 µV/V
OFFSET VOLTAGE, vs. time TC = 25°C ±75 * µV/√kh
BIAS CURRENT, initial
BIAS CURRENT, vs. supply TC = 25°C .01 * pA/V
OFFSET CURRENT, initial
INPUT IMPEDANCE, DC TC = 25°C10
3
3
TC = 25°C550310pA
TC = 25°C ±2.5 ±50 ±1.5 ±10 pA
5
*MΩ
INPUT CAPACITANCE TC = 25°C4*pF
COMMON MODE VOLTAGE RANGE4TC = –25°C to +85°C ±VS–10 * V
COMMON MODE REJECTION, DC TC = –25°C to +85°C, VCM = ±90V 130 * dB
GAIN
OPEN LOOP GAIN at 10Hz TC = 25°C, RL = ∞ 118 * dB
OPEN LOOP GAIN at 10Hz TC = 25°C, RL = 1.2KΩ 96 111 * * dB
GAIN BANDWIDTH PRODUCT at 1MHz TC = 25°C, RL = 1.2KΩ 5 * MHz
POWER BANDWIDTH TC = 25°C, RL = 1.2KΩ 90 * kHz
PHASE MARGIN TC = –25 to +85°C60*°
OUTPUT
VOLTAGE SWING
VOLTAGE SWING
VOLTAGE SWING
4
4
4
TC = 25°C, IO = 150mA ±VS–15 ±VS–8 * * V
TC = –25o C to +85oC, IO = ±75mA ±VS–10 ±VS–5 * * V
TC = –25o C to +85oC, IO = ±20mA ±VS–5 ±VS–3 * * V
CURRENT, peak TC = 85°C 150 * mA
SLEW RATE TC = 25°C3020*V/µs
CAPACITIVE LOAD, AV = 1 TC = –25 to +85°C10*nF
CAPACITIVE LOAD, AV > 4 TC = –25 to +85°C SOA *
SETTLING TIME to .1% TC = 25°C, RL= 1.2KΩ, 2V step 1 * µs
POWER SUPPLY
VOLTAGE TC = –55 to +125°C ±15 ±100 ±150 * * * V
CURRENT, quiescent TC = 25°C 6 8.5 * * mA
THERMAL
RESISTANCE, AC junction to case
5
TC = –55 to +125°C, F > 60Hz 3.8 * °C/W
RESISTANCE, DC junction to case TC = –55 to +125°C, F < 60Hz 6.0 6.5 * * °C/W
RESISTANCE, junction to air TC = –55 to +125°C30*°C/W
TEMPERATURE RANGE, case Meets full range specification –25 85 * * °C
NOTES: * The specification of PA08A is identical to the specification for PA08 in applicable column to the left.
1. Long term operation at the maximum junction temperature will result in reduced product life. Derate power dissipation to
achieve high MTTF.
2. The power supply voltage specified under typical (TYP) applies unless otherwise noted.
3. Doubles for every 10oC of temperature increase.
4. +VS and –VS denote the positive and negative supply rail respectively.
5. Rating applies only if output current alternates between both output transistors at a rate faster than 60Hz.
CAUTION
APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739
The internal substrate contains beryllia (BeO). Do not break the seal. If accidentally broken, do not crush, machine, or
subject to temperatures in excess of 850°C to avoid generating toxic fumes.
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