ETC PA16

POWER OPERATIONAL AMPLIFIERS
PA16 • PA16A
HTTP://WWW.APEXMICROTECH.COM
M I C R O T E C H N O L O G Y
(800) 546-APEX
(800) 546-2739
FEATURES
•
•
•
•
•
•
•
•
HIGH POWER BANDWIDTH — 350kHz
HIGH SLEW RATE — 20V/µs
FAST SETTLING TIME — 600ns
LOW CROSSOVER DISTORTION — Class A/B
LOW INTERNAL LOSSES — 1.2V at 2A
HIGH OUTPUT CURRENT — ±5A PEAK
LOW INPUT BIAS CURRENT — FET Input
ISOLATED CASE — 300 VDC
APPLICATIONS
•
•
•
•
MOTOR, VALVE AND ACTUATOR CONTROL
MAGNETIC DEFLECTION CIRCUITS UP TO 5A
POWER TRANSDUCERS UP TO 350 kHz
AUDIO AMPLIFIERS UP TO 44W RMS
TYPICAL APPLICATION
DESCRIPTION
The PA16 and PA16A are wideband, high output current
operational amplifiers designed to drive resistive, inductive
and capacitive loads. Their complementary “collector output”
stage can swing close to the supply rails and is protected
against inductive kickback. For optimum linearity, the output
stage is biased for class A/B operation. The safe operating
area (SOA) can be observed for all operating conditions by
selection of user programmable, current limiting resistors
(down to 10mA). Both amplifiers are internally compensated
but are not recommended for use as unity gain followers. For
continuous operation under load, mounting on a heatsink of
proper rating is recommended.
These hybrid integrated circuits utilize thick film (cermet)
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.
EQUIVALENT SCHEMATIC
4
R1
R2
R5
R3
D1
Q1
R6
Q2
R7
100K
+12
RCL+
.47µF 16K
.27 Ω
1K
PA16
.001µF
IN
.47µF
3.2 Ω
16W
RCL–
16K
.27 Ω
–12
LOW INTERNAL LOSS MAXIMIZES EFFICIENCY
Vehicular Sound System Power Stage
When system voltages are low and power is at a premium,
the PA16 is a natural choice. The circuit above utilizes not only
the feature of low internal loss of the PA16, but also its very low
distortion level to implement a crystal clear audio amplifier
suitable even for airborne applications. This circuit uses AC
coupling of both the input signal and the gain circuit to render
DC voltage across the speaker insignificant. The resistor and
capacitor across the inputs form a stability enhancement
network. The 0.27 ohm current limit resistors provide protection in the event of an output short circuit.
10
R4
Q3
Q4
2
12
R15
A1
EXTERNAL CONNECTIONS
1
2
–IN
+IN
3
4
5
6
Package: SIP03
7
8
9
10
11
12
1
Q5
8
Q7
R9
–R CL
Q6
R8
R10
R13
R12
Q8
+VS
OUT
–VS
R14
+R CL
D2
R11
6
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL [email protected]
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
PA16 • PA16A
SUPPLY VOLTAGE, +VS to –VS
OUTPUT CURRENT, within SOA
POWER DISSIPATION, internal1
INPUT VOLTAGE, differential
INPUT VOLTAGE, common mode
TEMPERATURE, pin solder - 10s
TEMPERATURE, junction1
TEMPERATURE RANGE, storage
OPERATING TEMPERATURE RANGE, case
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
PARAMETER
38V
5A
62.5W
±VS –5V
±VS –2V
300°C
150°C
–65 to +150°C
–55 to +125°C
PA16
TEST CONDITIONS
2, 6
MIN
PA16A
TYP
MAX
±5
±10
±10
±6
50
±10
±50
MIN
TYP
MAX
UNITS
±1
*
*
*
25
±3
±25
*
*
*
*
*
mV
µV/°C
µV/V
µV/W
pA
pA/°C
pA/V
pA
pA/°C
GΩ
pF
V
V
dB
*
*
*
*
*
dB
dB
MHz
kHz
°
*
*
V
V
A
µs
V/µs
INPUT
OFFSET VOLTAGE, initial
OFFSET VOLTAGE, vs. temperature
OFFSET VOLTAGE, vs. supply
OFFSET VOLTAGE, vs. power
BIAS CURRENT, initial
BIAS CURRENT, vs. temperature
BIAS CURRENT, vs. supply
OFFSET CURRENT, initial
OFFSET CURRENT, vs. temperature
INPUT IMPEDANCE, DC
INPUT CAPACITANCE
COMMON MODE VOLT. RANGE5, Pos.
COMMON MODE VOLT. RANGE5, Neg.
COMMON MODE REJECTION, DC
TC = 25°C
Full temperature range
TC = 25°C
TC = 25°C
TC = 25°C
TC = 85°C
TC = 25°C
TC = 25°C
TC = 85°C
TC = 25°C
TC = 25°C
Full temperature range
Full temperature range
Full temperature range
.01
25
+VS –6
–VS +6
70
200
200
*
15
100
100
1000
3
+VS –3
–VS +5
100
*
*
*
100
*
50
*
GAIN
OPEN LOOP GAIN at 10Hz
OPEN LOOP GAIN at 10Hz
GAIN BANDWIDTH PRODUCT at 1MHz
POWER BANDWIDTH
PHASE MARGIN
TC = 25°C, 1kΩ load
Full temp. range, 10kΩ load
TC = 25°C, 10Ω load
TC = 25°C, 10Ω load
Full temp. range, 10Ω load
86
103
100
4.5
350
30
*
OUTPUT
VOLTAGE SWING3
VOLTAGE SWING3
CURRENT, peak
SETTLING TIME to .1%
SLEW RATE
CAPACITIVE LOAD
HARMONIC DISTORTION
SMALL SIGNAL rise/fall time
SMALL SIGNAL overshoot
TC = 25°C, IO = 5A, RCL = .08Ω
Full temp. range, IO = 2A
TC = 25°C
TC = 25°C, 2V step
TC = 25°C
Full temp. range, AV > 10
PO = 5W, F = 1kHz, RL = 4Ω
RL = 10Ω, AV = 1
RL = 10Ω, AV = 1
±VS –4 ±VS –3
±VS –2 ±VS –1.2
5
.6
13
20
SOA
.028
100
10
±VS –3
±VS –1.2
*
*
*
*
*
*
*
*
%
ns
%
POWER SUPPLY
VOLTAGE
CURRENT, quiescent
Full temperature range
TC = 25°C
±7
±15
27
±19
40
1.4
1.8
30
1.6
2.0
*
*
*
*
*
V
mA
*
*
*
*
*
°C/W
°C/W
°C/W
°C
THERMAL
RESISTANCE, AC junction to case4
RESISTANCE, DC junction to case
RESISTANCE, junction to air
TEMPERATURE RANGE, case
NOTES:
*
1.
2.
3.
4.
5.
6.
CAUTION
F > 60Hz
F < 60Hz
Meets full range specifications
–25
+85
*
*
The specification of PA16A is identical to the specification for PA16 in applicable column to the left.
Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation
to achieve high MTTF.
The power supply voltage for all specifications is the TYP rating unless otherwise noted as a test condition.
+VS and –VS denote the positive and negative supply rail respectively. Total VS is measured from +VS to –VS.
Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz.
Exceeding CMV range can cause the output to latch.
Full temperature specifications are guaranteed but not 100% tested.
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: 1 (800) 546-2739
PA16 • PA16A
POWER DERATING
OUTPUT VOLTAGE SWING
60
50
40
30
20
10
0
0
25
50
75
100 125
CASE TEMPERATURE, TC (°C)
3.0
3.0
2.5
2.5
TC = 25 to 85°C
2.0
1.5
±VO
1.0
.5
0
SMALL SIGNAL RESPONSE
60
40
0
–180
| +VS | + | –VS | = 36V
23
18
13
7.8
4
1
.25
5
45
65
85 105
25
CASE TEMPERATURE, TC (°C)
120
COMMON MODE REJECTION
100
80
60
40
20
1
INPUT NOISE
3
10 100 1K 10K .1M 1M 10M
FREQUENCY, F (Hz)
SETTLING TIME
25
2
TIME, t (µS)
2.5
20
15
V
NO
L
D
OA
100
1K
10K
FREQUENCY, F (Hz)
.1M
100
+VS
80
60
40
–VS
20
0
10
100 1K 10K .1M 1M 10M
FREQUENCY, F(Hz)
QUIESCENT CURRENT
1.02
1.5
0
120
1.04
D
OA
OL
N
mV
10
AD
0 Ω LO
10mV 1
.5
10
10
POWER SUPPLY REJECTION
140
1.06
1m
1
.2M .3M
.5M .7M 1M
FREQUENCY, F (Hz)
1.08
35
30
6
.1M
10 100 1K 10K .1M 1M 10M
FREQUENCY, F (Hz)
POWER SUPPLY REJECTION, PSR (dB)
16
COMMON MODE REJECTION, CMR (dB)
BIAS CURRENT
64
.06
–15
1
10 100 1K 10K .1M 1M 10M
FREQUENCY, F (Hz)
| +VS | + | –VS | = 30V
10
–210
1
POWER RESPONSE
30
–120
–150
NORMALIZED BIAS CURRENT, I B (X)
0
–25
50
0
25
75 100 125
CASE TEMPERATURE, TC (°C)
5
–90
20
INPUT NOISE VOLTAGE, en (nV/ ÷ Hz)
.5
OUTPUT VOLTAGE, VO (VPP )
–60
PHASE, Φ (°)
80
RCL = 0.62 Ω
1.0
NORMALIZED QUIESCENT CURRENT IQ(X)
OPEN LOOP GAIN, AOL (dB)
–30
40
1.5
0
100
256
1
2
3
4
OUTPUT CURRENT, I O(A)
RCL = 0.3 Ω
2.0
PHASE RESPONSE
120
–20
CURRENT LIMIT
3.5
CURRENT LIMIT, I LIM (A)
70
SATURATION VOLTAGE, VS –VO (V)
INTERNAL POWER DISSIPATION, PD(W)
TYPICAL PERFORMANCE
GRAPHS
1
2
3
4
5
6
7
8
OUTPUT CHANGE FROM ZERO, VOLTS
1
.98
.96
.94
.92
–25
0
25
50
75 100 125
CASE TEMPERATURE, Tc(°C)
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL [email protected]
OPERATING
CONSIDERATIONS
PA16 • PA16A
AV = 10
VPS = ±15V
PO = .5W
RL = 4
PO = 5W
RL = 4
0.01
PO = 25W
RL = 2
0.001
.1K
1.0K
10K
FREQUENCY, F (Hz)
PULSE RESPONSE
15
OUTPUT VOLTAGE, VO (V)
100K
VIN = ±1V, tr = 100ns
LOAD = 10 Ω
10
5
0
–5
Please read Application Note 1 "General Operating Considerations" which covers
stability, supplies, heat sinking, mounting, current limit, SOA interpretation, and
specification interpretation. Visit www.apexmicrotech.com for design tools that help
automate tasks such as calculations for stability, internal power dissipation, current
limit; heat sink selection; Apex’s complete Application Notes library; Technical Seminar
Workbook; and Evaluation Kits.
SAFE OPERATING
AREA (SOA)
The SOA curves combine the effect of all limits
for this Power Op Amp.
For a given application,
the direction and magnitude of the output current should be calculated
or measured and
checked against the SOA
curves. This is simple for
resistive loads but more
complex for reactive and
EMF generating loads.
The following guidelines
may save extensive analytical efforts:
–10
–15
1
0
3
4
2
TIME, t (µS)
OUTPUT VOLTAGE, VO (V)
Tc
4.0
3.0
Tc
=6
0°
=8
5°
2.0
1.5
1.0
C
C
0.8
0.6
0.5
6 7 8 9 10
15
20 25 30
38
SUPPLY TO OUTPUT DIFFERENTIAL VOLTAGE VS –VO (V)
SHORT TO ±VS
C, L OR EMF LOAD
±VS
VIN = ±.2V, tr = 50ns
.2
SHORT TO
COMMON
18V
.9A
1.8A
15V
1.0A
2.1A
10V
1.6A
3.2A
These simplified limits may be exceeded with further analysis using the operating
conditions for a specific application.
.1
0
–.1
CURRENT LIMIT
–.2
Proper operation requires the use of two current limit resistors, connected as shown
in the external connection diagram. The minimum value for RCL is 0.12 ohm, however
for optimum reliability it should be set as high as possible. Refer to the “General
Operating Considerations” section of the handbook for current limit adjust details.
–.3
DELTA GAIN WITH LOAD, ∆ A (dB)
5.0
The amplifier can handle any EMF generating or reactive load and short circuits to
the supply rails or shorts to common if the current limits are set as follows at
TC = 85°C.
5
PULSE RESPONSE
.3
OUTPUT CURRENT FROM +VS OR –VS (A)
0.1
GENERAL
HARMONIC DISTORTION
wn
do
s
ak
re
5m
db
t=
on
ec
es
tat
ys
ad
ste
DISTORTION, THD (%)
1
0
.5
1.0
TIME, t (µS)
1.5
LOADING EFFECTS
0
RCL =
–.3
IO = 150mA
–.6
–.9
IO = 400mA
–1.2
–1.5
100
10K
1K
FREQUENCY, F (Hz)
.1M
.65
ILIM (A)
0.01
DEVICE MOUNTING
The case (mounting flange) is electrically isolated and should be mounted directly to
a heatsink with thermal compound. Screws with Belville spring washers are recommended to maintain positive clamping pressure on heatsink mounting surfaces. Long
periods of thermal cycling can loosen mounting screws and increase thermal resistance.
Since the case is electrically isolated (floating) with respect to the internal circuits it
is recommended to connect it to common or other convenient AC ground potential.
This data
sheet has been carefully checked
and is believed
be reliable,
however,
no responsibility
assumed forARIZONA
possible inaccuracies
All specifications are
subject to change
without
notice.
APEX
MICROTECHNOLOGY
CORPORATION
• to
5980
NORTH
SHANNON
ROAD •isTUCSON,
85741 •or omissions.
USA • APPLICATIONS
HOTLINE:
1 (800)
546-2739
PA16U REV. C FEBRUARY 2001
© 2001 Apex Microtechnology Corp.