
Philips Semiconductors Linear Products Product specification
AU2902Low power quad operational amplifier
42
August 31, 1994 853-1634 13721
DESCRIPTION
The AU2902 consists of four independent, high-gain, internally
frequency-compensated operational amplifiers designed specifically
to operate from a single power supply over a wide range of voltages.
UNIQUE FEATURES
In the linear mode, the input common-mode voltage range includes
ground and the output voltage can also swing to ground, even
though operated from only a single power supply voltage.
The unity gain crossover frequency and the input bias current are
temperature-compensated.
FEATURES
•Internally frequency-compensated for unity gain
•Large DC voltage gain: 100dB
•Wide bandwidth (unity gain): 1MHz (temperature-compensated)
•Wide power supply range Single supply: 3V
DC
to 30VDC or dual
supplies: ±1.5V
DC
to ±15V
DC
•Very low supply current drain: essentially independent of supply
voltage (1mW/op amp at +5V
DC
)
•Low input bias current: 45nA
DC
(temperature-compensated)
•Low input offset voltage: 2mV
DC
and offset current: 5nA
DC
•Differential input voltage range equal to the power supply voltage
•Large output voltage: 0V
DC
to VCC-1.5VDC swing
PIN CONFIGURATION
+
D and N Packages
1
2
3
4 11
12
13
14
OUTPUT 1
–INPUT 1
+INPUT 1
V+
1
–
4
+ –
+
7
6
5 10
9
8
2
–
3
+
–
OUTPUT 2
+INPUT 2
–INPUT 2
OUTPUT 4
–INPUT 4
+INPUT 4
GND
OUTPUT 3
+INPUT 3
–INPUT 3
Top View
EQUIVALENT SCHEMATIC
V–
OUTPUT
Q5
R
SC
Q8 Q9
Q1
Q3
6µA
100µA 6µA
Q6
Q7
Q13
Q12Q10
Q2
INPUT
50µA
C
C

Philips Semiconductors Linear Products Product specification
AU2902Low power quad operational amplifier
August 31, 1994
43
ORDERING INFORMATION
DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #
14-Pin Plastic Dual In-Line Package (DIP) -40 to +125°C AU2902N 0405B
14-Pin Plastic Small Outline (SO) Package -40 to +125°C AU2902D 0175D
ABSOLUTE MAXIMUM RATINGS
SYMBOL PARAMETER RATING UNIT
V
CC
Supply voltage 32 or ±16 V
DC
V
IN
Differential input voltage 32 V
DC
V
IN
Input voltage –0.3 to +32 V
DC
P
DMAX
Maximum power dissipation,
TA=25°C(still–air)
1
N package 1420 mW
D package 1040 mW
Output short–circuit to GND one
amplifier Continuous
VCC<15VDC and TA=25°C
I
IN
Input current (VIN<–0.3V)
3
50 mA
T
A
Operating ambient temperature range
AU2902 –40 to +125 °C
T
STG
Storage temperature range –65 to +150 °C
T
SOLD
Lead soldering temperature (10sec max) 300 °C
NOTES:
1. Derate above 25°C at the following rates:
N package at 11.4mW/°C
D package at 8.3mW/°C
2. Short–circuits from the output to V
CC
+ can cause excessive heating and eventual destruction. The maximum output current is approximately
40mA, independent of the magnitude of V
CC
. At values of supply voltage in excess of +15VDC continuous short–circuits can exceed the
power dissipation ratings and cause eventual destruction.
3. This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector–base junction of the
input PNP transistors becoming forward biased and thereby acting as input bias clamps. In addition, there is also lateral NPN parasitic transistor action on the IC chip. This action can cause the output voltages of the op amps to go to the V+ rail (or to ground for a large overdrive)
during the time that the input is driven negative.
DC ELECTRICAL CHARACTERISTICS
VCC=5V, TA=25°C unless otherwise specified.
∆VOS/∆T Temperature drift RS=0Ω, over temp. 7 µV/°C
IIN(+) or IIN(–), over temp. 40 500
∆I
BIAS
/∆T Temperature drift Over temp. 50 pA/°C
IIN(+)–IIN(–), over temp. ±150
∆IOS/∆T Temperature drift Over temp. 10 pA/°C
V
CM
Common–mode voltage range
3
VCC≤30V 0 VCC–1.5 V
VCC≤30V, over temp. 0 VCC–2 V
CMRR Common–mode rejection ratio VCC=30V 65 70 dB
V
OUT
Output voltage swing
RL=2kΩ, VCC=30V,
over temp.
26 V
V
OH
Output voltage high
RL≥10kΩ, VCC=30V,
over temp.
27 28 V

Philips Semiconductors Linear Products Product specification
AU2902Low power quad operational amplifier
August 31, 1994
44
DC ELECTRICAL CHARACTERISTICS (Continued)
V
OL
Output voltage low
RL≤10kΩ, VCC=5V,
over temp.
5 20 mV
RL=∞, VCC=30V,
over temp.
1.5 3
RL=∞, VCC=5V,
over temp.
0.7 1.2
VCC=15V (for large VO swing),
R
L
≥2kΩ
25 100
VCC=15V (for large VO swing),
R
L
≥2kΩ,
over temp.
15
Amplifier–to–amplifier coupling
5
f=1kHz to 20kHz,
input referred
–120 dB
PSRR Power supply rejection ratio RS=0Ω 65 100 dB
VIN+=+1V, VIN–=0V, VCC=15V 20 40
VIN+=+1V, VIN–=0V, VCC=15V,
over temp.
10 20
VIN–=+1V, VIN+=0V, V+=15V 10 20
VIN–=+1V, VIN+=0V, VCC=15V,
over temp.
5 8
VIN–=+1V, VIN+=0V, VO=200mV 12 50 µA
I
SC
Short–circuit current
4
10 40 60 mA
V
DIFF
Differential input voltage
3
V
CC
V
GBW Unity gain bandwidth 1 MHz
SR Slew rate 0.3 V/µs
V
NOISE
Input noise voltage f=1kHz 40 nV/√Hz
NOTES:
1. V
O
≈ 1.4VDC, RS=0Ω with VCC from 5V to 30V and over full input common–mode range (0VDC+ to VCC –1.5V).
2. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of
the output so no loading change exists on the input lines.
3. The input common–mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of
the common–mode voltage range is V
CC
–1.5, but either or both inputs can go to +32V without damage.
4. Short–circuits from the output to VCC can cause excessive heating and eventual destruction. The maximum output current is approximately
40mA independent of the magnitude of V
CC
. At values of supply voltage in excess of +15VDC, continuous short–circuits can exceed the
power dissipation ratings and cause eventual destruction. Destructive dissipation can result from simultaneous shorts on all amplifiers.
5. Due to proximity of external components, insure that coupling is not originating via stray capacitance between these external parts. This
typically can be detected as this type of coupling increases at higher frequencies.
A
VOL
Large–signal voltage gain
I
OUT
Output current
Sink
V/mV

Philips Semiconductors Linear Products Product specification
AU2902Low power quad operational amplifier
August 31, 1994
45
TYPICAL PERFORMANCE CHARACTERISTICS
0.1µF
4
3
2
1
0
0 10 20 30 40
T
A
= O°C to +125
o
C
T
A
= –55
o
C
SUPPLY VOLTAGE (V
DC
)
SUPPLY CURRENT DRAIN (mAdc)
INPUT – CURRENT (mAdc)
90
80
70
60
50
40
30
20
10
0
–55 –35 15 5 25 45 65 85 105 125
TEMPERATURE (
o
C)
V
O
VOL
0 10 20 30 40
SUPPLY VOLTAGE (V
DC
)
A — VOLTAGE GAIN (dB)
160
120
80
40
0
RL = 2KΩ
RL = 20KΩ
VOL — OUTPUT VOLTAGE (V )
DC
10
1
0.1
0.01
0.001 0.01 0.1 1 10 100
V+ = +5V
V+ = +15V
V+ = +30V
V+ /2
V
+
TA = +25oC
I
O
— OUTPUT SINK CURRENT (mADC)
–
+
V
+
V
O
0.1µF
V
IN
V+ /2
V+ = 10 to 15 Vdc and
–55
o
C < TA < +125 oC
V+ = 30 Vdc and
–55
o
C < TA < +125
o
C
140
120
100
80
60
40
20
0
1 10 100 1K 10K 100K 1M 10M
VOLTAGE GAIN (dB)
FREQUENCY (Hz)
15V
DC
100K
V
IN
7.5V
DC
2K
1K
V
O
20
15
10
5
0
1K
10K
100K 1M
V — OUTPUT SWING (Vp–p)
D
FREQUENCY (Hz)
NEGATIVE
POSITIVE
15
10
5
0 5 10
V
+
or V– — POWER SUPPLY VOLTAGE (+VDC)
0
90
80
70
60
50
40
30
20
10
0
–55 –35 –15 5 25 45 65 85 105 125
TA — TEMPERATURE (oC)
VCM = 0 V
DC
V+ = +30 V
DC
V+ = +15 V
DC
V+ = +5 V
DC
Supply Current Current Limiting
Voltage Gain
Output Characteristics
Current Sinking
Open–Loop Frequency
Response
Large–Signal
Frequency Response
Input Voltage Range
Input Current
+V — INPUT VOLTAGE ( V )
IN
DC
+
1 — INPUT CURRENT (nA )
B
DC
V —OUTPUT VOLTAGE
REFERENCED TO V+ (V )
2
DC
V
+
V
2
I
O
+V + / 2
+
–
INDEPENDENT
OF V+
T
A
= +25oC
8
7
6
5
4
3
2
1
0.001 0.01 0.1 1 10
IO+ — OUTPUT SOURCE CURRENT (mA
DC
)
Output Characteristics
Current Sourcing
10M
–
+
–
+

Philips Semiconductors Linear Products Product specification
AU2902Low power quad operational amplifier
August 31, 1994
46
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
INPUTOUTPUT
50pF
E
O
TA = +25oC
V+ = +30V
DC
500
450
400
350
300
250
0 1 2 3 4 5 6 7 8
t — TIME (µS)
E — OUTPUT VOLTAGE (mV)
O
Voltage–Follower Pulse
Response (Small–Signal)
INPUT VOLTAGE (V) OUTPUT VOLTAGE (V)
4
3
2
1
0
3
2
1
0
RL > V+ = 15 V
DC
TIME (µs)
0 10 20 30 40
Voltage–Follower Pulse
Response
V
IN
+7.5V
DC
100K
V
IN
V
O
100
100
100K
–7.5 V
DC
+
120
100
80
60
40
20
0
100 1K 10K 100K 1M
f — FREQUENCY (Hz)
CMRR — COMMON–MODE REJECTION RATIO (dB)
–
+
Common–Mode Rejection Ratio
TYPICAL APPLICATIONS
BLOCKS
DC
GAIN
R
1
10K
V+
10K
V+
8
+
V
IN
V
O
4
RF
–
V+
2
V+
V
O
RL
4
8
R
IN
V
IN
–
+
RF
V+
2
10K
V+
10K
V+
8
+
V
IN
4
–
V
O
Single Supply Inverting Amplifier Non–Inverting Amplifier Output Biasing Voltage–Follower