Analog Devices AD711 Datasheet

Precision, Low Cost,

a

FEATURES
Enhanced Replacements for LF411 and TL081

AC PERFORMANCE
Settles to 60.01% in 1.0 ms
16 V/ms min Slew Rate (AD711J)
3 MHz min Unity Gain Bandwidth (AD711J)

DC PERFORMANCE

0.25 mV max Offset Voltage: (AD711C)
3 mV/8C max Drift: (AD711C)
200 V/mV min Open-Loop Gain (AD711K)
4 mV p-p max Noise, 0.1 Hz to 10 Hz (AD711C)
Available in Plastic Mini-DIP, Plastic SO, 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
Quad Version: AD713

PRODUCT DESCRIPTION

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/µs
and a settling time of 1 µs 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 MIL­STD-883B, Rev. C.

High Speed, BiFET Op Amp

AD711

CONNECTION DIAGRAMS

TO-99 Plastic Mini-DIP (N) Package

(H) Package Plastic Small Outline (R)

and

Cerdip (Q) Package

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 environ­mental 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 with
100% testing guarantees 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 µV/°C max on the AD711C.

3. Along with precision dc performance, the AD711 offers
excellent dynamic response. It settles to ± 0.01% in 1 µs and
has a 100% tested minimum slew rate of 16 V/µs. 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 µV 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. A

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
which 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: [phone] Fax: [phone]

AD711–SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

(VS = 615 V @ TA = +258C unless otherwise noted)

J/A/S K/B/T C

Parameter Min Typ Max Min Typ Max Min Typ Max Units

INPUT OFFSET VOLTAGE

1

Initial Offset 0.3 2/1/1 0.2 0.5 0.10 0.25 mV

T

MIN

to T

MAX

3/2/2 1.0 0.45 mV

vs. Temp 7 20/20/20 5 10 2 5 µV/°C
vs. Supply 76 95 80 100 86 110 dB

T

MIN

to T

MAX

76/76/76 80 86 dB

Long-Term Stability 15 15 15 µV/Month

INPUT BIAS CURRENT

2

VCM = 0 V 15 50 15 50 15 25 pA

= 0 V @ T

V

CM

MAX

1.1/3.2/51 1.1/3.2/51 1.6 nA

VCM = ±10 V 20 100 20 100 20 50 pA

INPUT OFFSET CURRENT

= 0 V 10 25 5 25 5 10 pA

V

CM

VCM = 0 V @ T

MAX

0.6/1.6/26 0.6/1.6/26 0.65 nA

FREQUENCY RESPONSE

Small Signal Bandwidth 3.0 4.0 3.4 4.0 3.4 4.0 MHz
Full Power Response 200 200 200 kHz
Slew Rate 16 20 18 20 18 20 V/µs
Settling Time to 0.01% 1.0 1.2 1.0 1.2 1.0 1.2 µs
Total Harmonic Distortion 0.0003 0.0003 0.0003 %

INPUT IMPEDANCE

Differential 3 × 10

12

i5.5 3 × 1012i5.5 3 × 1012i5.5 ΩipF

Common Mode 3 × 1012i5.5 3 × 1012i5.5 3 × 1012i5.5 ΩipF

INPUT VOLTAGE RANGE

Differential
Common-Mode Voltage

3

to T

T

MIN

MAX

4

–VS + 4 +VS – 2 –VS + 4 +VS – 2 –VS + 4 +VS – 2 V

±20 ±20 ± 20 V
+14.5, –11.5 +14.5, –11.5 +14.5, –11.5

Common-Mode
Rejection Ratio

V

= ±10 V 76 88 80 88 86 94 dB

CM

to T

T

MIN

V

CM

T

MAX

= ±11 V 70 84 76 84 76 90 dB

to T

MIN

MAX

76/76/76 84 80 84 86 90 dB

70/70/70 80 74 80 74 84 dB

INPUT VOLTAGE NOISE 2 2 2 4 µV p-p

45 45 45 nV/√
22 22 22 nV/√
18 18 18 nV/√

Hz
Hz
Hz

16 16 16 nV/√Hz

INPUT CURRENT NOISE 0.01 0.01 0.01 pA/√Hz
OPEN-LOOP GAIN 150 400 200 400 200 400 V/mV

100/100/100 100 100 V/mV

OUTPUT CHARACTERISTICS

Voltage +13, –12.5 +13.9, –13.3 +13, –12.5 +13.9, –13.3 +13, –12.5 +13.9, –13.3 V

±12/±12/612 +13.8, –13.1 612 +13.8, –13.1 612 +13.8, –13.1 V

Current 25 25 25 mA

POWER SUPPLY

Rated Performance ±15 ±15 ± 15 V
Operating Range 64.5 618 64.5 618 64.5 618 V
Quiescent Current 2.5 3.4 2.5 3.0 2.5 2.8 mA

NOTES

1

Input Offset Voltage specifications are guaranteed after 5 minutes of operation at TA = +25°C.

2

Bias Current specifications are guaranteed maximum at either input after 5 minutes of operation at TA = +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. A

AD711

ABSOLUTE MAXIMUM RATINGS

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V

Internal Power Dissipation
Input Voltage

3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V

2

. . . . . . . . . . . . . . . . . . . . .500 mW

1

Output Short Circuit Duration . . . . . . . . . . . . . . . . . Indefinite

Differential Input Voltage . . . . . . . . . . . . . . . . . . +V

and –V

S

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: θJC = 33°C/Watt; θJA = 100°C/Watt
8-Pin Cerdip Package: θJC = 22°C/Watt; θJA = 110°C/Watt
8-Pin Metal Can Package: θJC = 65°C/Watt; θJA = 150°C/Watt

3

For supply voltages less than ±18 V, the absolute maximum input voltage is equal
to the supply voltage.

METALLIZATION PHOTOGRAPH

Dimensions shown in inches and (mm)

Contact factory for latest dimensions.

ORDERING GUIDE

Temperature Package Package

Model Range Description Option*

AD711AH –40°C to +85°C 8-Pin Metal Can H-08A
AD711AQ –40°C to +85°C 8-Pin Ceramic DIP Q-8
AD711BH –40°C to +85°C 8-Pin Metal Can H-08A
AD711BQ –40°C to +85°C 8-Pin Ceramic DIP Q-8
AD711CH –40°C to +85°C 8-Pin Metal Can H-08A
AD711CQ –40°C to +85°C 8-Pin Ceramic DIP Q-8
AD711JN 0°C to +70°C 8-Pin Plastic DIP N-8
AD711JR 0°C to +70°C 8-Pin Plastic SOIC R-8
AD711JR-REEL 0°C to +70°C 8-Pin Plastic SOIC R-8
AD711JR-REEL7 0°C to +70°C 8-Pin Plastic SOIC R-8
AD711KN 0°C to +70°C 8-Pin Plastic DIP N-8
AD711KR 0°C to +70°C 8-Pin Plastic SOIC R-8
AD711KR-REEL 0°C to +70°C 8-Pin Plastic SOIC R-8
AD711KR-REEL7 0°C to +70°C 8-Pin Plastic SOIC R-8
AD711SCHIPS –55°C to +125°C Bare Die
AD711SQ/883B –55°C to +125°C 8-Pin Ceramic DIP Q-8
AD711TQ/883B –55°C to +125°C 8-Pin Ceramic DIP Q-8

REV. A

–3–

AD711

–Typical Characteristics

Figure 1. Input Voltage Swing vs.
Supply Voltage

Figure 4. Quiescent Current vs.
Supply Voltage

Figure 2. Output Voltage Swing vs.
Supply Voltage

Figure 5. Input Bias Current vs.
Temperature

Figure 3. Output Voltage Swing
vs. Load Resistance

Figure 6. Output Impedance vs.
Frequency

Figure 7. Input Bias Current vs.
Common Mode Voltage

Figure 8. Short Circuit Current
Limit vs. Temperature

–4–

Figure 9. Unity Gain Bandwidth vs.
Temperature

REV. A