DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µ
PC4091
J-FET INPUT LOW-OFFSET OPERATIONAL AMPLIFIER
The
µ
PC4091 operational amplifier offers high input impedance, low offset voltage, high slew rate, and stable AC
operating characteristics. NEC's unique high-speed PNP transistor (f
T
= 300 MHz) in the output stage solves the
oscillation problem of current sinking with a large capacitive load. Zener-zap resistor trimming in the input stage
produces excellent offset voltage and temperature drift characteristics.
FEATURES
• Stable operation with 10000 pF capacitive load
• Low input offset voltage and offset voltage null
capability
±2.5
mV (MAX.)
±7
µ
V/°C (TYP.) temperature drift
• Very low input bias and offset currents
• Low noise : e
n
= 19 nV/
√Hz
(TYP.)
• Output short circuit protection
• High input impedance ... J-FET Input Stage
• Internal frequency compensation
• High slew rate: 15 V/
µ
s (TYP.)
ORDERING INFORMATION
Part Number
Package
8-pin plastic DIP (300 mil)
8-pin plastic SOP (225 mil)
µ
PC4091C
µ
PC4091G2
EQUIVALENT CIRCUIT
V
+
(7)
Q
9
(2)
I
I
Q
1
I
N
(3)
Q
5
(1)
OFFSET
NULL
Q
3
Q
4
(5)
OFFSET
NULL
Q
2
C
1
D
1
Q
10
Q
7
(6)
HIGH SPEED
PNP
Q
6
OUT
PIN CONFIGURATION
(Top View)
µ
PC4091C, 4091G2
OFFSET
1
NULL
I
I
2
– +
8 NC
7 V
+
I
N
3
6 OUT
OFFSET
5 NULL
V
–
Q
8
(4)
4
TRIMMED
V
–
Remark
NC : No Connection
The information in this document is subject to change without notice.
Document No. G13904EJ1V0DS00 (1st edition)
Date Published November 1998 N CP(K)
Printed in Japan
©
1998
µ
PC4091
ABSOLUTE MAXIMUM RATINGS (T
A
= 25 °C)
Parameter
Voltage between V and V
Differential Input Voltage
Input Voltage
Note 2
+
–Note
1
Symbol
V
+
– V
–
V
ID
V
I
V
O
Ratings
–0.3 to +36
±30
V
–
–0.3 to V +0.3
V
–
–0.3 to V +0.3
350
440
Indefinite
+
+
Unit
V
V
V
V
mW
mW
sec
°C
°C
Output Voltage
Note 3
Power Dissipation
C
Package
Note 4
P
T
G2 Package
Output Short Circuit Duration
Note 6
Note 5
Operating Ambient Temperature
Storage Temperature
T
A
T
stg
–20 to +80
–55 to +125
Notes 1.
Reverse connection of supply voltage can cause destruction.
2.
The input voltage should be allowed to input without damage or destruction. Even during the transition
period of supply voltage, power on/off etc., this specification should be kept. The normal operation will
establish when the both inputs are within the Common Mode Input Voltage Range of electrical
characteristics.
3.
This specification is the voltage which should be allowed to supply to the output terminal from external
without damage or destructive. Even during the transition period of supply voltage, power on/off etc., this
specification should be kept. The output voltage of normal operation will be the Output Voltage Swing of
electrical characteristics.
4.
Thermal derating factor is –5.0 mV/°C when operating ambient temperature is higher than 55 °C.
5.
Thermal derating factor is –4.4 mV/°C when operating ambient temperature is higher than 25 °C.
6.
Pay careful attention to the total power dissipation not to exceed the absolute maximum ratings, Note 4
and Note 5.
RECOMMENDED OPERATING CONDITIONS
Parameter
Supply Voltage
Output Current
Capacitive Load (A
V
= +1, R
f
= 0
Ω)
V
±
I
O
C
L
Symbol
MIN.
±5
TYP.
MAX.
±16
±10
10000
Unit
V
mA
pF
OFFSET VOLTAGE NULL CIRCUIT
2
–
6
3
+
1
10 kΩ
VR
1
V
–
5
Remark
The OFFSET NULL pins should be left
open or connected to V
–
via a resistor
as shown in the left figure.
Don't
connect to any lines other than V
–
,
otherwise mulfunction, degradation, or
failure may occur.
2
µ
PC4091
ELECTRICAL CHARACTERISTICS (T
A
= 25 °C, V
±
=
±
15 V)
Parameter
Input Offset Voltage
Input Offset Current
Input Bias Current
Note 7
Symbol
V
IO
I
IO
I
B
A
V
I
CC
CMR
SVR
V
om
R
S
≤
50
Ω
Conditions
MIN.
TYP.
±1
±25
50
MAX.
±2.5
±100
200
Unit
mV
pA
pA
Note 7
Large Signal Voltage Gain
Supply Current
Common Mode Rejection Ratio
Supply Voltage Rejection Ratio
Output Voltage Swing
R
L
≥
2 kΩ , V
O
=
±10
V
I
O
= 0 A
25000
200000
2.5
3.4
mA
dB
dB
V
70
70
R
L
≥
10 kΩ
±12
100
100
+14.0
–13.3
R
L
≥
2 kΩ
±10
+13.5
–12.8
V
Common Model Input Voltage Range
V
ICM
±11
+14
–12
V
Slew Rate
Unity Gain Frequency
Input Equivalent Noise Voltage Density
Input Offset Voltage
Average V
IO
Temperature Drift
Input Offset Current
Input Bias Current
Note 7
SR
f
unity
e
n
V
IO
∆V
IO
/∆T
I
IO
I
B
A
V
= 1
15
4
V/
µ
s
MHz
nV/√Hz
±5
mV
R
S
= 100
Ω,
f = 1 kHz
R
S
≤
50
Ω,
T
A
= –20 to +70 °C
T
A
= –20 to +70 °C
T
A
= –20 to +70 °C
T
A
= –20 to +70 °C
19
±7
±2
7
µ
V/°C
nA
nA
Note 7
Notes 7.
Input bias currents flow into IC. Because each currents are gate leak current of P-channel J-FET on input
stage. And that are temperature sensitive. Short time measuring method is recommendable to maintain
the junction temperature close to the operating ambient temperature.
3
µ
PC4091
TYPICAL PERFORMANCE CHARACTERISTICS (T
A
= 25 °C, TYP.)
POWER DISSIPATION
600
P
T
- Total Power Dissipation - mW
OPEN LOOP FREQUENCY RESPONSE
120
A
V
- Open Loop Voltage Gain - dB
500
400
300
200
100
µ
PC4091G2
µ
PC4091C
200
°C/W
100
80
60
40
20
0
1
10
100
1k
V
±
=
±15
V
R
L
= 2 kΩ
227
°C/W
0
20
40
60
80
100
T
A
- Operating Ambient Temperature -
°C
10 k 100 k 1 M
10 M
f - Frequency - Hz
INPUT OFFSET VOLTAGE
5
4
V
IO
- Input Offset Voltage - mV
INPUT BIAS CURRENT
100
V
±
=
±15
V
V
±
=
±15
V
I
B
- Input Bias Current - nA
3
2
1
0
−1
−2
−3
−4
−5
−40
−20
0
20
40
60
80
10
1.0
0.1
0.01
−20
0
20
40
60
80
T
A
- Operating Ambient Temperature -
°C
T
A
- Operating Ambient Temperature -
°C
LARGE SIGNAL FREQUENCY RESPONSE
30
V
om
- Output Voltage Swing - V
p-p
V
om
- Output Voltage Swing - V
p-p
OUTPUT VOLTAGE SWING
40
R
L
= 10 kΩ
30
V
±
=
±15
V
R
L
= 10 kΩ
20
V
±
=
±10
V
20
10
V
±
=
±5
V
10
0
100
1k
10 k
100 k
1M
10 M
0
±10
V
±
- Supply Voltage - V
±20
f - Frequency - Hz
4
µ
PC4091
OUTPUT SOURCE CURRENT LIMIT
+15
V
O
+
- Output Voltage - V
OUTPUT SINK CURRENT LIMIT
−15
V
O
−
- Output Voltage - V
V
±
=
±15
V
V
±
=
±15
V
+10
T
A
= 70
°C
25
°C
−10
T
A
= 70
°C
25
°C
+5
−20 °C
−5
−20 °C
0
10
20
30
0
10
20
30
I
O SOURCE
- Output Source Current - mA
I
O SINK
- Output Sink Current - mA
SUPPLY CURRENT
3.5
3.0
I
CC
- Supply Current - mA
e
n
- Input Equivalent Noise
Voltage Density
- nV/ Hz
INPUT EQUIVALENT NOISE VOLTAGE DENSITY
50
V
±
=
±15
V
R
S
= 100
Ω
40
2.5
2.0
1.5
1.0
0.5
0
±5
±10
±15
±20
30
20
10
0
10
100
1k
f - Frequency - Hz
10k
100k
V
±
- Supply Voltage - V
VOLTAGE FOLLOWER PULSE RESPONSE 1
(V
±
=
±15
V, A
V
=
+1)
(R
L
= 2 kΩ, C
L
= 100 pF)
VOLTAGE FOLLOWER PULSE RESPONSE 2
(V
±
=
±15
V, A
V
=
+1)
(R
L
= 2 kΩ, C
L
= 10000 pF)
V
O
- Output Voltage - V
10
V
O
- Output Voltage - V
10
0
0
−10
−10
0
2
4
6
0
20
40
60
t - Time -
µ
s
t - Time -
µ
s
5
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