Apex PB58, PB58A Datasheet
POWER BOOSTER AMPLIFIERS
MICROTECHNOLOGY
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
FEA TURES
• WIDE SUPPLY RANGE — ±15V to ±150V
• HIGH OUTPUT CURRENT —
1.5A Continuous (PB58)
2.0A Continuous (PB58A)
• VOLTAGE AND CURRENT GAIN
• HIGH SLEW — 50V/µs Minimum (PB58)
75V/µs Minimum (PB58A)
• PROGRAMMABLE OUTPUT CURRENT LIMIT
• HIGH POWER BANDWIDTH — 320 kHz Minimum
• LOW QUIESCENT CURRENT — 12mA Typical
• EVALUATION KIT — See EK50
APPLICA TIONS
• HIGH VOLTAGE INSTRUMENTATION
• Electrostatic TRANSDUCERS & DEFLECTION
• Programmable Power Supplies Up to 280V p-p
DESCRIPTION
The PB58 is a high voltage, high current amplifier designed
to provide voltage and current gain for a small signal, general
purpose op amp. Including the power booster within the feedback loop of the driver amplifier results in a composite amplifier
with the accuracy of the driver and the extended output voltage
range and current capability of the booster. The PB58 can also
be used without a driver in some applications, requiring only an
external current limit resistor to function properly.
The output stage utilizes complementary MOSFETs, providing symmetrical output impedance and eliminating second
breakdown limitations imposed by Bipolar Transistors. Internal
feedback and gainset resistors are provided for a pin-strapable
gain of 3. Additional gain can be achieved with a single external
resistor. Compensation is not required for most driver/gain
configurations, but can be accomplished with a single external
capacitor. Enormous flexibility is provided through the choice of
driver amplifier, current limit, supply voltage, voltage gain, and
compensation.
This hybrid circuit utilizes a 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 electrically isolated and hermetically sealed using
one-shot resistance welding. The use of compressible isolation
washers voids the warranty.
TYPICAL APPLICATION
C
R
V
I
IN
+15V
OP
AMP
–15V
F
R
F
+Vs
IN
PB58
COM
–Vs
Figure 1. Inverting
composite amplifier.
R
CL
OUT
C
C
R
G
R
L
PB58 • PB58A
EQUIVALENT SCHEMATIC
IN
4
6.2K
GAIN
7
50K 3.1K
COM
5
COMP
8
EXTERNAL CONNECTIONS
COM
Q4
Q9
+Vs
3
IN
4
TOP VIEW
5
6
–Vs
Q1
Q11
CL
2
7
GAIN
Q2
Q6
3
+Vs
Q3
Q5
OUT
1
Q7
Q10
R
CL
OUT
1
COMP
8
C
C
R
G
2
CL
Q8
–Vs
6
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
PB58 • PB58A
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +VS to –V
OUTPUT CURRENT, within SOA 2.0A
POWER DISSIPATION, internal at TC = 25°C183W
INPUT VOLTAGE, referred to COM ±15V
TEMPERATURE, pin solder—10 sec max 300°C
TEMPERATURE, junction
TEMPERATURE, storage –65 to +150°C
OPERATING TEMPERATURE RANGE, case –55 to +125°C
SPECIFICATIONS
PARAMETER TEST CONDITIONS
INPUT
OFFSET VOLTAGE, initial ±.75 ±1.75 * ±1.0 V
OFFSET VOLTAGE, vs. temperature Full temperature range
INPUT IMPEDANCE, DC 25 50 * * kΩ
INPUT CAPACITANCE 3 * pF
CLOSED LOOP GAIN RANGE 3 10 25 * * * V/V
GAIN ACCURACY, internal Rg, Rf AV = 3 ±10 ±15 * * %
GAIN ACCURACY, external Rf AV = 10 ±15 ±25 * * %
PHASE SHIFT f = 10kHz, AVCL = 10, CC = 22pF 10 * °
f = 200kHz, AVCL = 10, CC = 22pF 60 * °
OUTPUT
VOLTAGE SWING Io = 1.5A (PB58), 2A (PB58A) VS–11 VS –8 VS–15 VS–11 V
VOLTAGE SWING Io = 1A VS–10 VS –7 * * V
VOLTAGE SWING Io = .1A VS–8 VS –5 * * V
CURRENT, continuous 1.5 2.0 A
SLEW RATE Full temperature range 50 100 75 * V/µs
CAPACITIVE LOAD Full temperature range 2200 * pF
SETTLING TIME to .1% RL = 100Ω, 2V step 2 * µs
POWER BANDWIDTH VC = 100 Vpp 160 320 240 * kHz
SMALL SIGNAL BANDWIDTH CC = 22pF, AV = 25, Vcc = ±100 100 * kHz
SMALL SIGNAL BANDWIDTH CC = 22pF, AV = 3, Vcc = ±30 1 * MHz
2
3
S
1
PB58
MIN TYP MAX MIN TYP MAX UNITS
–4.5 –7 * * mV/°C
300V
175°C
PB58A
POWER SUPPLY
VOLTAGE, ±V
CURRENT, quiescent VS = ±15 11 * mA
THERMAL
RESISTANCE, AC junction to case5Full temp. range, f > 60Hz 1.2 1.3 * * °C/W
RESISTANCE, DC junction to case Full temp. range, f < 60Hz 1.6 1.8 * * °C/W
RESISTANCE, junction to air Full temperature range 30 * °C/W
TEMPERATURE RANGE, case Meets full range specifications –25 25 85 * * * °C
NOTES: * The specification of PB58A is identical to the specification for PB58 in applicable column to the left.
CAUTION
APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739
4
S
1. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation
to achieve high MTTF (Mean Time to Failure).
2. The power supply voltage specified under typical (TYP) applies, TC = 25°C unless otherwise noted.
3. Guaranteed by design but not tested.
4. +VS and –VS denote the positive and negative supply rail respectively.
5. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz.
6. +VS/–VS must be at least 15V above/below COM.
The PB58 is constructed from MOSFET transistors. ESD handling procedures must be observed.
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.
Full temperature range ±15
VS = ±60 12 * mA
VS = ±150 14 18 * * mA
6
±60 ±150 * * * V
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