Product In
novati
PA16, PA16A
o n
From
PA16 • PA16A
PA16 • PA16A
DESCRIPTION
The PA16 and PA16A are wideband, high output cur-
rent 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 (cer-
met) 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 Power SIP package is electrically
isolated.
Power Operational Amplifiers
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
EQUIVALENT SCHEMATIC
4
R1
R2
R4
Q4
2
A1
1
Q5
R8
Q7
R9
R10
R11
6
R12
Q8
R13
Q6
R14
D2
R15
R3
Q2
R5
Q1
R6
R7
Q3
10
12
D1
8
PA16U
www.cirrus.com
Copyright © Cirrus Logic, Inc. 2009
(All Rights Reserved)
NOV 2009
1
APEX − PA16REVI
PA16 • PA16A
EXTERNAL CONNECTIONS
1
2
3
4
5
6
7
8
9
10
11
12
Product Innovation From
–IN
+IN
+V
S
–V
S
–R
CL
OUT
+R
CL
Formed leads available
See package style EE
12-pin SIP
PACKAGE
STYLE DP
1. CHARACTERISTICS AND SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS –
PA16/PA16A
Parameter
SUPPLY VOLTAGE, +V
S
to -V
S
OUTPUT CURRENT, within SOA
POWER DISSIPATION, internal
INPUT VOLTAGE, differential
INPUT VOLTAGE, common mode
TEMPERATURE, pin solder, 10s max.
TEMPERATURE, junction
TEMPERATURE RANGE, storage
OPERATING TEMPERATURE RANGE, case
(Note 2)
−40
−25
(Note 2)
-30
-V
S
+ 2
Symbol
Min
Max
38
5
62.5
30
+V
S
- 2
260
150
85
85
Units
V
A
W
V
V
°C
°C
°C
°C
CAUTION
The exposed substrate contains beryllia (BeO). Do not crush, machine, or subject to temperatures
in excess of 850°C to avoid generating toxic fumes.
PA16
Min
Typ
±5
Full temp range
±10
±10
±6
50
0.01
25
1000
3
100
100
*
*
200
200
*
15
50
*
SPECIFICATIONS
Parameter
INPUT
OFFSET VOLTAGE, initial
OFFSET VOLTAGE vs. temp
OFFSET VOLTAGE vs. supply
OFFSET VOLTAGE vs. power
BIAS CURRENT, initial
BIAS CURRENT, vs. temp
BIAS CURRENT, vs. supply
OFFSET CURRENT, initial
OFFSET CURRENT, vs. temp
INPUT IMPEDANCE, DC
INPUT CAPACITANCE
±10
±50
±1
*
*
*
25
100
*
±3
±25
mV
µV/°C
µV/V
µV/W
pA
pA/°C
pA/V
pA
pA/°C
GΩ
pF
Test Condi-
tions
3,7
PA16A
Max
Min
Typ
Max
Units
2
PA16U
Product Innovation From
PA16 • PA16A
Parameter
COMMON MODE VOLTAGE
RANGE, Pos.
(Note 6)
COMMON MODE VOLTAGE
RANGE, Neg.
(Note 6)
Test Condi-
tions
3,7
Full temp range
Full temp range
PA16
Min
+V
S
- 6
-V
S
+ 6
70
PA16A
Max
Min
*
*
*
Typ
+V
S
- 3
-V
S
+ 5
100
Typ
*
*
*
Max
Units
V
V
dB
COMMON MODE REJECTION, Full temp range
DC
GAIN
OPEN LOOP GAIN @ 10Hz
OPEN LOOP GAIN @ 10Hz
1KΩ load
Full temp range,
10KΩ load
103
86
100
4.5
350
30
*
*
*
*
*
*
dB
dB
MHz
kHz
°
GAIN BANDWIDTH PRODUCT 10Ω load
@ 1MHz
POWER BANDWIDTH
PHASE MARGIN
OUTPUT
VOLTAGE SWING
VOLTAGE SWING
CURRENT, peak
SETTLING TIME to 0.1%
SLEW RATE
CAPACITIVE LOAD
HARMONIC DISTORTION
SMALL SIGNAL rise/fall time
SMALL SIGNAL overshoot
POWER SUPPLY
VOLTAGE
CURRENT, quiescent
THERMAL
RESISTANCE, AC,
junction to case (Note 5)
RESISTANCE, DC,
junction to case
RESISTANCE, DC,
junction to air
TEMPERATURE RANGE, case Meets full range
specification
-25
F > 60Hz
F < 60Hz
Full temp range
±7
Full temp range,
A
V
> 10
P
O
= 5W, F =
1kHz, R
L
= 4Ω
R
L
= 10Ω,
A
V
= 1
R
L
= 10Ω,
A
V
= 1
2V step
13
(Note 4)
(Note 4)
I
O
= 5A,
R
CL
= 0.08Ω
I
O
= 2A
±V
S
- 4
±V
S
- 2
5
10Ω load
Full temp range,
10Ω load
±V
S
- 3
±V
S
- 1.2
0.6
20
SOA
0.028
100
10
±V
S
- 3
±V
S
- 1.2
*
*
*
*
V
V
A
µS
V/µS
*
*
*
*
*
*
%
nS
%
±15
27
1.4
1.8
30
±19
40
1.63
2.0
*
*
*
*
*
*
*
*
*
*
V
mA
°C/W
°C/W
°C/W
+85
*
*
°C
PA16U
3
PA16 • PA16A
NOTES:
Product Innovation From
1. (All Min/Max characteristics and specifications are guaranteed over the Specified Operating Condi-
tions. Typical performance characteristics and specifications are derived from measurements taken
at typical supply voltages and T
C
= 25°C).
2. Long term operation at the maximum junction temperature will result in reduced product life. Derate
power dissipation to achieve high MTTF.
* The specification of PA16A is identical to the specification for PA16 in applicable column to the left.
3. The power supply voltage for all specifications is the TYP rating unless otherwise noted as a test
condition.
4. +V
S
and –V
S
denote the positive and negative supply rail respectively. Total V
S
is measured from +V
S
to –V
S
.
5. Rating applies if the output current alternates between both output transistors at a rate faster than
60Hz.
6. Exceeding CMV range can cause the output to latch.
7. Full temperature specifications are guaranteed but not 100% tested.
8. The absolute maximum negative input voltage is equal to the negative power supply voltage plus 1V
(-V
S
+ 1V).
TYPICAL APPLICATION
Vehicular Sound System Power Stage
When system voltages are low and power is at a pre-
mium, 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 imple-
ment 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 re-
sistor and capacitor across the inputs form a stabil-
ity enhancement network. The 0.27 ohm current limit
resistors provide protection in the event of an output
short circuit.
+12
.47µF 16K
1K
IN
.47µF
.001µF
16K
–12
100K
R
CL+
.27Ω
PA16
R
CL–
.27Ω
3.2Ω
16W
LOW INTERNAL LOSS MAXIMIZES EFFICIENCY
TYPICAL PERFORMANCE GRAPHS
INTERNAL POWER DISSIPATION, P
D
(W)
70
60
50
40
30
20
10
0
0
POWER DERATING
SATURATION VOLTAGE, V
S
–V
O
(V)
3.5
3.0
OUTPUT VOLTAGE SWING
3.0
2.5
2.0
1.5
1.0
.5
0
–25
CURRENT LIMIT
CURRENT LIMIT, I
LIM
(A)
2.5
T
C
= 25 to 85°C
2.0
1.5
±V
O
1.0
.5
R
CL
= 0.3Ω
R
CL
= 0.62Ω
25
50
75
100
125
CASE TEMPERATURE, T
C
(°C)
0
1
2
3
4
OUTPUT CURRENT, I
O
(A)
5
50
0
25
75 100 125
CASE TEMPERATURE, T
C
(°C)
120
N LOOP GAIN, A
OL
(dB)
SMALL SIGNAL RESPONSE
0
–30
PHASE, Ф (°)
PHASE RESPONSE
UT VOLTAGE, V
O
(V
P-P
)
30
23
18
13
10
POWER RESPONSE
| +V
S
| + | –V
S
| = 36V
100
80
60
40
20
–60
–90
–120
–150
4
| +V
S
| + | –V
S
| = 30V
PA16U
INTERNAL POWER DISSIPATION, P
D
(W)
70
60
50
40
30
20
10
0
0
POWER DERATING
SATURATION VOLTAGE, V
S
–V
O
(V)
3.5
3.0
OUTPUT VOLTAGE SWING
3.0
2.5
2.0
1.5
1.0
.5
0
–25
CURRENT LIMIT
CURRENT LIMIT, I
LIM
(A)
2.5
T
C
= 25 to 85°C
2.0
1.5
±V
O
1.0
.5
R
CL
= 0.3Ω
R
CL
= 0.62Ω
Product Innovation From
25
50
75
100
125
CASE TEMPERATURE, T
C
(°C)
PA16 • PA16A
50
0
25
75 100 125
CASE TEMPERATURE, T
C
(°C)
0
1
2
3
4
OUTPUT CURRENT, I
O
(A)
5
120
OPEN LOOP GAIN, A
OL
(dB)
SMALL SIGNAL RESPONSE
0
–30
PHASE, Ф (°)
PHASE RESPONSE
OUTPUT VOLTAGE, V
O
(V
P-P
)
30
23
18
13
10
7.8
6
.1M
POWER RESPONSE
| +V
S
| + | –V
S
| = 36V
100
80
60
40
20
0
1
10
100 1K 10K .1M 1M 10M
FREQUENCY, F (Hz)
–60
–90
–120
–150
–180
–210
1
10
100 1K 10K .1M 1M 10M
FREQUENCY, F (Hz)
| +V
S
| + | –V
S
| = 30V
–20
.2M
.5M .7M 1M
.3M
FREQUENCY, F (Hz)
COMMON MODE REJECTION, CMR (dB)
NORMALIZED BIAS CURRENT, I
B
(X)
120
100
80
60
40
20
POWER SUPPLY REJECTION, PSR (dB)
256
64
16
4
1
.25
.06
–15
BIAS CURRENT
COMMON MODE REJECTION
140
120
100
80
60
40
20
POWER SUPPLY REJECTION
+V
S
–V
S
5
45
65
85
25
CASE TEMPERATURE, T
C
(C)
105
1
10
100 1K 10K .1M 1M 10M
FREQUENCY, F (Hz)
0
10
100
1K 10K .1M 1M
FREQUENCY, F(Hz)
10M
NORMALIZED QUIESCENT CURRENT I
Q
(X)
INPUT NOISE VOLTAGE,
e
N
(nV/√Hz)
40
35
30
25
INPUT NOISE
3
2.5
2
1.5
1
.5
SETTLING TIME
1.08
1.06
1.04
1.02
1
.98
.96
.94
.92
–25
QUIESCENT CURRENT
TIME, t (µs)
1m
V
NO
LO
AD
20
15
10m
10mV
O
VN
LO
AD
AD
10Ω LO
10
10
100
1K
10K
FREQUENCY, F (Hz)
.1M
0
2
5
6
1
3
4
7
8
OUTPUT CHANGE FROM ZERO, VOLTS
0
25
50
75
100 125
CASE TEMPERATURE, T
C
(°C)
1
DISTORTION, THD (%)
HARMONIC DISTORTION
OUTPUT VOLTAGE, V
O
(V)
OUTPUT VOLTAGE, V
O
(V)
A
V
= 10
V
PS
= 15V
P
O
= .5W
R
L
= 4Ω
15
10
5
0
–5
–10
–15
PULSE RESPONSE
V
IN
= ±1V, t
r
= 100ns
LOAD = 10Ω
.3
.2
.1
0
–.1
–.2
–.3
PULSE RESPONSE
V
IN
= ±.2V, t
r
= 50ns
0.1
P
O
= 5W
R
L
= 4Ω
P
O
= 25W
R
L
= 2Ω
0.01
0.001
.1K
1.0K
10K
FREQUENCY, F (Hz)
100K
0
1
2
3
4
TIME, t (µs)
5
0
.5
1.0
TIME, t (µs)
1.5
AD, ∆A (dB)
PA16U
0
–.3
LOADING EFFECTS
5
I = 150mA
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