a
FEATURES
Enhanced Replacement for LF411 and TL081
AC PERFORMANCE
Settles to 0.01% in 1.0 s
16 V/ s min Slew Rate (AD711J)
3 MHz min Unity Gain Bandwidth (AD711J)
DC PERFORMANCE
0.25 mV max Offset Voltage: (AD711C)
3 V/ C max Drift: (AD711C)
200 V/mV min Open-Loop Gain (AD711K)
4 V p-p max Noise, 0.1 Hz to 10 Hz (AD711C)
Available in Plastic Mini-DIP, Plastic SOIC, Hermetic
Cerdip, and Hermetic Metal Can Packages
MIL-STD-883B Parts Available
Available in Tape and Reel in Accordance with
EIA-481A Standard
Surface Mount (SOIC)
Dual Version: AD712
PRODUCT DESCRIPTION
Precision, Low Cost,
High Speed, BiFET Op Amp
AD711
CONNECTION DIAGRAMS
OFFSET
NULL
INVERTING
INPUT
NON
INVERTING
INPUT
NC
+V
S
OUTPUT
AD711
–V
S
OFFSET
NULL
10k
NC = NO CONNECT
NOTE
PIN 4 CONNECTED TO CASE
–15V
V
OS
TRIM
OFFSET
NULL
INVERTING
INPUT
NONINVERTING
INPUT
–V
S
1
2
3
4
8
7
6
NC
+V
S
AD711
OUTPUT
OFFSET
5
NULL
NC = NO CONNECT
The AD711 is a high speed, precision monolithic operational
amplifier offering high performance at very modest prices. Its
very low offset voltage and offset voltage drift are the results of
advanced laser wafer trimming technology. These performance
benefits allow the user to easily upgrade existing designs that use
older precision BiFETs and, in many cases, bipolar op amps.
The superior ac and dc performance of this op amp makes it
suitable for active filter applications. With a slew rate of 16 V/ms
and a settling time of 1
ms
to
±
0.01%, the AD711 is ideal as a
buffer for 12-bit D/A and A/D Converters and as a high-speed
integrator. The settling time is unmatched by any similar IC
amplifier.
The combination of excellent noise performance and low input
current also make the AD711 useful for photo diode preamps.
Common-mode rejection of 88 dB and open loop gain of
400 V/mV ensure 12-bit performance even in high-speed unity
gain buffer circuits.
The AD711 is pinned out in a standard op amp configuration
and is available in seven performance grades. The AD711J and
AD711K are rated over the commercial temperature range of
0∞C to 70∞C. The AD711A, AD711B and AD711C are rated
over the industrial temperature range of –40∞C to +85∞C. The
AD711S and AD711T are rated over the military temperature
range of –40∞C to +125∞C and are available processed to MIL-
STD-883B, REV. E.
Extended reliability PLUS screening is available, specified over
the commercial and industrial temperature ranges. PLUS
screening includes 168 hour burn-in, as well as other environ-
mental and physical tests.
The AD711 is available in an 8-pin plastic mini-DIP, small
outline, cerdip, TO-99 metal can, or in chip form.
PRODUCT HIGHLIGHTS
1. The AD711 offers excellent overall performance at very
competitive prices.
2. Analog Devices’ advanced processing technology and 100%
testing guarantee a low input offset voltage (0.25 mV max,
C grade, 2 mV max, J grade). Input offset voltage is specified
in the warmed-up condition. Analog Devices’ laser wafer
drift trimming process reduces input offset voltage drifts to
3
mV/∞C
max on the AD711C.
3. Along with precision dc performance, the AD711 offers
excellent dynamic response. It settles to
±
0.01% in 1
ms
and
has a 100% tested minimum slew rate of 16 V/ms. Thus this
device is ideal for applications such as DAC and ADC
buffers which require a combination of superior ac and dc
performance.
4. The AD711 has a guaranteed and tested maximum voltage
noise of 4
mV
p-p, 0.1 to 10 Hz (AD711C).
5. Analog Devices’ well-matched, ion-implanted JFETs ensure
a guaranteed input bias current (at either input) of 25 pA
max (AD711C) and an input offset current of 10 pA max
(AD711C). Both input bias current and input offset current
are guaranteed in the warmed-up condition.
REV. E
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2002
AD711–SPECIFICATIONS
(V =
S
15 V @ T
A
= 25 C, unless otherwise noted.)
K/B/T
Typ
0.2
5
100
15
C
Typ
0.10
2
110
15
50
1.1/3.2/51
100
25
0.6/1.6/26
3.4
18
1.2
15
20
5
25
1.6
50
10
0.65
Parameter
INPUT OFFSET VOLTAGE
Initial Offset
T
MIN
to T
MAX
vs. Temp
vs. Supply
T
MIN
to T
MAX
Long-Term Stability
INPUT BIAS CURRENT
2
V
CM
= 0 V
V
CM
= 0 V @ T
MAX
V
CM
=
±
10 V
INPUT OFFSET CURRENT
V
CM
= 0 V
V
CM
= 0 V @ T
MAX
FREQUENCY RESPONSE
Small Signal Bandwidth
Full Power Response
Slew Rate
Settling Time to 0.01%
Total Harmonic Distortion
INPUT IMPEDANCE
Differential
Common Mode
INPUT VOLTAGE RANGE
Differential
3
Common-Mode Voltage
4
T
MIN
to T
MAX
Common-Mode
Rejection Ratio
V
CM
=
±
10 V
T
MIN
to T
MAX
V
CM
=
±
11 V
T
MIN
to T
MAX
INPUT VOLTAGE NOISE
1
Min
J/A/S
Typ
0.3
7
95
15
15
20
10
Max
2/1/1
3/2/2
20/20/20
Min
Max
0.5
1.0
10
Min
Max
0.25
0.45
5
Unit
mV
mV
mV/∞C
dB
dB
mV/Month
pA
nA
pA
pA
nA
MHz
kHz
V/ms
ms
%
W
pF
W
pF
V
76
76/76/76
80
80
86
86
50
1.1/3.2/51
100
25
0.6/1.6/26
3.4
18
1.2
15
20
5
3.0
16
4.0
200
20
1.0
0.0003
3
¥
10
12
5.5
3
¥
10
12
5.5
±
20
+14.5, –11.5
4.0
200
20
1.0
0.0003
3
¥
10
12
5.5
3
¥
10
12
5.5
±
20
+14.5, –11.5
4.0
200
20
1.0
0.0003
3
¥
10
12
5.5
3
¥
10
12
5.5
±
20
+14.5, –11.5
1.2
–V
S
+ 4
+V
S
– 2
–V
S
+ 4
+V
S
– 2
–V
S
+ 4
+V – 2 V
76
76/76/76
70
70/70/70
88
84
84
80
2
45
22
18
16
0.01
80
80
76
74
88
84
84
80
2
45
22
18
16
0.01
86
86
76
74
94
90
90
84
2
45
22
18
16
0.01
4
dB
dB
dB
dB
mV
p-p
nV/÷Hz
nV/÷Hz
nV/÷Hz
nV/÷Hz
pA/÷Hz
V/mV
V/mV
INPUT CURRENT NOISE
OPEN-LOOP GAIN
OUTPUT
CHARACTERISTICS
Voltage
Current
POWER SUPPLY
Rated Performance
Operating Range
Quiescent Current
150
400
100/100/100
200
100
400
200
100
400
+13, –12.5 +13.9, –13.3
±
12/± 12/± 12 +13.8, –13.1
25
±
15
2.5
+13, –12.5 +13.9, –13.3
±
12
+13.8, –13.1
25
±
15
2.5
+13, –12.5 +13.9, –13.3
±
12
+13.8, –13.1
25
±
15
2.5
V
V
mA
V
V
mA
±
4.5
±
18
3.4
±
4.5
±
18
3.0
±
4.5
±
18
2.8
NOTES
1
Input Offset Voltage specifications are guaranteed after 5 minutes of operation at T
A
= 25∞C.
2
Bias Current specifications are guaranteed maximum at either input after 5 minutes of operation at T
A
= 25∞C. For higher temperatures, the current doubles every 10∞C.
3
Defined as voltage between inputs, such that neither exceeds
±
10 V from ground.
4
Typically exceeding –14.1 V negative common-mode voltage on either input results in an output phase reversal.
Specifications subject to change without notice.
–2–
REV. E
AD711
ABSOLUTE MAXIMUM RATINGS
1
ORDERING GUIDE
Model
*AD711AH
AD711AQ
*AD711BQ
*AD711CH
AD711JN
AD711JR
AD711JR-REEL
AD711JR-REEL7
AD711KN
AD711KR
AD711KR-REEL
AD711KR-REEL7
*AD711SQ/883B
*AD711TQ/883B
Temperature
Range
–40∞C to +85∞C
–40∞C to +85∞C
–40∞C to +85∞C
–40∞C to +85∞C
0∞C to 70∞C
0∞C to 70∞C
0∞C to 70∞C
0∞C to 70∞C
0∞C to 70∞C
0∞C to 70∞C
0∞C to 70∞C
0∞C to 70∞C
–55∞C to +125∞C
–55∞C to +125∞C
Package
Description
8-Pin Metal Can
8-Pin Ceramic DIP
8-Pin Ceramic DIP
8-Pin Metal Can
8-Pin Plastic DIP
8-Pin Plastic SOIC
8-Pin Plastic SOIC
8-Pin Plastic SOIC
8-Pin Plastic DIP
8-Pin Plastic SOIC
8-Pin Plastic SOIC
8-Pin Plastic SOIC
8-Pin Ceramic DIP
8-Pin Ceramic DIP
Package
Option*
H-08A
Q-8
Q-8
H-08A
N-8
RN-8
RN-8
RN-8
N-8
RN-8
RN-8
RN-8
Q-8
Q-8
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
18 V
Internal Power Dissipation
2
. . . . . . . . . . . . . . . . . . . . . 500 mW
Input Voltage
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
18 V
Output Short Circuit Duration . . . . . . . . . . . . . . . . . Indefinite
Differential Input Voltage . . . . . . . . . . . . . . . . . . +V
S
and –V
S
Storage Temperature Range (Q, H) . . . . . . . –65∞C to +150∞C
Storage Temperature Range (N) . . . . . . . . . . –65∞C to +125∞C
Operating Temperature Range
AD711J/K . . . . . . . . . . . . . . . . . . . . . . . . . . . 0∞C to +70∞C
AD711A/B/C . . . . . . . . . . . . . . . . . . . . . . . . –40∞C to +85∞C
AD711S/T . . . . . . . . . . . . . . . . . . . . . . . . . –55∞C to +125∞C
Lead Temperature Range (Soldering 60 sec) . . . . . . . . . 300∞C
NOTES
1
Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in
the operational section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
2
Thermal Characteristics:
8-Pin Plastic Package:
q
JC
= 33∞C/Watt;
q
JA
= 100∞C/Watt
8-Pin Cerdip Package:
q
JC
= 22∞C/Watt;
q
JA
= 110∞C/Watt
8-Pin Metal Can Package:
q
JC
= 65∞C/Watt;
q
JA
= 150∞C/Watt
8-Pin SOIC Package:
q
JC
= 43∞C/Watt;
q
JA
= 160∞C/Watt
3
For supply voltages less than
±
18 V, the absolute maximum input voltage is equal
to the supply voltage.
*Not
for new design, obsolete April 2002
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD711 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
REV. E
–3–
AD711–Typical Performance Characteristics
20
OUTPUT VOLTAGE SWING – Volts
20
OUTPUT VOLTAGE SWING – Volts p-p
30
25
INPUT VOLTAGE SWING – Volts
15
15
+V
OUT
20
15V SUPPLIES
15
10
R
L
= 2k
25 C
5
10
R
L
= 2k
25 C
–V
OUT
10
5
0
10
5
0
0
5
10
SUPPLY VOLTAGE –
15
Volts
20
0
0
5
10
SUPPLY VOLTAGE –
15
Volts
20
100
1k
LOAD RESISTANCE –
10k
TPC 1. Input Voltage Swing vs.
Supply Voltage
TPC 2. Output Voltage Swing vs.
Supply Voltage
TPC 3. Output Voltage Swing vs.
Load Resistance
2.75
INPUT BIAS CURRENT (V
CM
= 0) – Amps
10
10
10
10
–6
100
A
VCL
= 1
–7
QUIESCENT CURRENT – mA
–8
2.25
–9
OUTPUT IMPEDANCE –
2.50
10
1
10
–10
2.00
0.01
10
10
–11
1.75
–12
0
5
10
SUPPLY VOLTAGE –
15
Volts
20
0.01
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE – C
1k
10k
100k
1M
FREQUENCY – Hz
10M
TPC 4. Quiescent Current vs. Sup-
ply Voltage
TPC 5. Input Bias Current vs. Tem-
perature
TPC 6. Output Impedance vs. Fre-
quency
100
V
S
=
25 C
75
15V
SHORT CIRCUIT CURRENT LIMIT – mA
26
5.0
UNITY GAIN BANDWIDTHT – MHz
24
+OUTPUT CURRENT
22
20
18
–OUTPUT CURRENT
16
14
12
10
–60 –40 –20 0 20 40 60 80 100 120 140
AMBIENT TEMPERATURE – C
INPUT BIAS CURRENT – pA
4.5
50
MAX J GRADE LIMIT
25
4.0
3.5
0
–10
–5
0
5
COMMON MODE VOLTAGE – Volts
10
3.0
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE – C
TPC 7. Input Bias Current vs. Com-
mon Mode Voltage
TPC 8. Short Circuit Current Limit
vs. Temperature
TPC 9. Unity Gain Bandwidth vs.
Temperature
–4–
REV. E
AD711
100
80
OPEN LOOP GAIN – dB
60
GAIN
40
40
PHASE
100
80
60
125
120
PHASE MARGIN – Degrees
OPEN-LOOP GAIN – dB
POWER SUPPLY REJECTION – dB
R
L
= 2k
25 C
110
100
+SUPPLY
80
–SUPPLY
60
115
110
20
0
R
L
= 2k
C = 100pF
20
0
–20
10M
105
100
95
40
V
S
= 15 SUPPLIES
WITH 1V p-p SINE
WAVE 25 C
1
10
100
1k
10k
10k
SUPPLY MODULATION FREQUENCY – Hz
20
–20
10
100
1k
10k
100k
FREQUENCY – Hz
1M
0
5
10
SUPPLY VOLTAGE –
15
Volts
20
0
TPC 10. Open-Loop Gain and
Phase Margin vs. Frequency
TPC 11. Open-Loop Gain vs.
Supply Voltage
TPC 12. Power Supply Rejection
vs. Frequency
100
V
S
= 15V
V
CM
= 1V p-p
25 C
30
25
20
R
L
= 2k
25 C
V
S
= 15V
Volts
OUTPUT SWING FRIM 0V TO
2
8
6
4
2
0
–2
–4
–6
–8
–10
0.5
0.6
0.7
0.8
0.9
SETTLING TIME – s
1.0
ERROR
1% 0.1% 0.01%
1% 0.1% 0.01%
80
CMR – dB
60
OUTPUT VOLTAGE – Volts p-p
15
10
5
40
20
0
10
100
1k
10k
100k
FREQUENCY – Hz
1M
0
100k
1M
INPUT FREQUENCY – Hz
10M
TPC 13. Common Mode Rejection
vs. Frequency
TPC 14. Large Signal Frequency
Response
TPC 15. Output Swing and Error
vs. Settling Time
–70
–80
INPUT NOISE VOLTAGE – nV/
Hz
1k
25
3V RMS
R
L
= 2k
C
L
= 100pF
20
–90
THD – dB
100
SLEW RATE – V s
15
–100
–110
–120
10
10
5
–130
100
1
1k
10k
FREQUENCY – Hz
100k
1
10
100
1k
FREQUENCY – Hz
10k
100k
0
0
100 200 300 400 500 600 700 800 900
INPUT ERROR SIGNAL – mV
(AT SUMMING JUNCTION)
TPC 16. Total Harmonic Distor-
tion vs. Frequency
TPC 17. Input Noise Voltage
Spectral Density
TPC 18. Slew Rate vs. Input
Error Signal
REV. E
–5–
