AD746JRZ Datasheet AD746JRZ, AD746JNZ, AD746SQ/883B | P1-P3

CONNECTION DIAGRAM

Plastic Mini-DIP (N)

Cerdip (Q) and

Plastic SOIC (R) Packages

REV. B

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otherwise under any patent or patent rights of Analog Devices.

Dual Precision, 500 ns

Settling, BiFET Op Amp

AD746

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 617/329-4700 Fax: 617/326-8703

FEATURES

AC PERFORMANCE

500 ns Settling to 0.01% for 10 V Step

75 V/

s Slew Rate

0.0001% Total Harmonic Distortion (THD)

13 MHz Gain Bandwidth

Internal Compensation for Gains of +2 or Greater

DC PERFORMANCE

0.5 mV max Offset Voltage (AD746B)

V/8C max Drift (AD746B)

175 V/mV min Open Loop Gain (AD746B)

V p-p Noise, 0.1 Hz to 10 Hz

Available in Plastic Mini-DIP, Cerdip and Surface

Mount Packages

Available in Tape and Reel in Accordance with

EIA-481A Standard

MIL-STD-883B Processing also Available

Single Version: AD744

APPLICATIONS

Dual Output Buffers for 12- and 14-Bit DACs

Input Buffers for Precision ADCs, Wideband

Preamplifiers and Low Distortion Audio Circuitry

PRODUCT DESCRIPTION

The AD746 is a dual operational amplifier, consisting of two

AD744 BiFET op amps on a single chip. These precision

monolithic op amps offer excellent dc characteristics plus rapid

settling times, high slew rates and ample bandwidths. In

addition, the AD746 provides the close matching ac and dc

characteristics inherent to amplifiers sharing the same

monolithic die.

The single pole response of the AD746 provides fast settling:

500 ns to 0.01%. This feature, combined with its high dc

precision, makes it suitable for use as a buffer amplifier for 12-

or 14-bit DACs and ADCs. Furthermore, the AD746’s low total

harmonic distortion (THD) level of 0.0001% and very close

matching ac characteristics make it an ideal amplifier for many

demanding audio applications.

The AD746 is internally compensated for stable operation as a

unity gain inverter or as a noninverting amplifier with a gain of 2

or greater. It is available in four performance grades. The

AD746J is rated over the commercial temperature range of 0 to

+70°C. The AD746A and AD746B are rated over the industrial

temperature range of –40°C to +85°C. The AD746S is rated

over the military temperature range of –55°C to +125°C and is

available processed to MIL-STD-883B, Rev. C.

The AD746 is available in three 8-pin packages: plastic mini

DIP, hermetic cerdip and surface mount (SOIC).

PRODUCT HIGHLIGHTS

1. The AD746 offers exceptional dynamic response for high

speed data acquisition systems. It settles to 0.01% in 500 ns

and has a 100% tested minimum slew rate of 50 V/µs

(AD746B).

2. Outstanding dc precision is provided by a combination of

Analog Devices’ advanced processing technology, laser wafer

drift trimming and well-matched ion-implanted JFETs. Input

offset voltage, input bias current and input offset current are

specified in the warmed-up condition and are 100% tested.

3. Differential and multichannel systems will benefit from the

AD746’s very close matching of ac characteristics. Input

offset voltage specs are fully tested and guaranteed to a

maximum of 0.5 mV (AD746B).

4. The AD746 has very close, guaranteed matching of input

bias current between its two amplifiers.

5. Unity gain stable version AD712 also available.

AD746* PRODUCT PAGE QUICK LINKS

Last Content Update: 02/23/2017

COMPARABLE PARTS

View a parametric search of comparable parts.

EVALUATION KITS

• Universal Evaluation Board for Dual High Speed

Operational Amplifiers

DOCUMENTATION

Application Notes

• AN-402: Replacing Output Clamping Op Amps with Input

Clamping Amps

• AN-417: Fast Rail-to-Rail Operational Amplifiers Ease

Design Constraints in Low Voltage High Speed Systems

• AN-581: Biasing and Decoupling Op Amps in Single

Supply Applications

Data Sheet

• AD746: Dual Precision, 500 ns Settling, BiFET Op Amp

Data Sheet

User Guides

• UG-128: Universal Evaluation Board for Dual High Speed

Op Amps in SOIC Packages

TOOLS AND SIMULATIONS

• Analog Filter Wizard

• Analog Photodiode Wizard

• Power Dissipation vs Die Temp

• VRMS/dBm/dBu/dBV calculators

• AD746 SPICE Macro-Model

REFERENCE MATERIALS

Tutorials

• MT-032: Ideal Voltage Feedback (VFB) Op Amp

• MT-033: Voltage Feedback Op Amp Gain and Bandwidth

• MT-047: Op Amp Noise

• MT-048: Op Amp Noise Relationships: 1/f Noise, RMS

Noise, and Equivalent Noise Bandwidth

• MT-049: Op Amp Total Output Noise Calculations for

Single-Pole System

• MT-050: Op Amp Total Output Noise Calculations for

Second-Order System

• MT-052: Op Amp Noise Figure: Don't Be Misled

• MT-053: Op Amp Distortion: HD, THD, THD + N, IMD,

SFDR, MTPR

• MT-056: High Speed Voltage Feedback Op Amps

• MT-058: Effects of Feedback Capacitance on VFB and CFB

Op Amps

• MT-059: Compensating for the Effects of Input

Capacitance on VFB and CFB Op Amps Used in Current-to-

Voltage Converters

• MT-060: Choosing Between Voltage Feedback and

Current Feedback Op Amps

DESIGN RESOURCES

• AD746 Material Declaration

• PCN-PDN Information

• Quality And Reliability

• Symbols and Footprints

DISCUSSIONS

View all AD746 EngineerZone Discussions.

SAMPLE AND BUY

Visit the product page to see pricing options.

TECHNICAL SUPPORT

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number.

DOCUMENT FEEDBACK

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REV. B

–2–

AD746–SPECIFICATIONS

(@ +258C and 615 V dc, unless otherwise noted)

AD746J/A AD746B AD746S

Model Conditions Min Typ Max Min Typ Max Min Typ Max Units

INPUT OFFSET VOLTAGE

Initial Offset 0.3 1.5 0.25 0.5 0.3 1.0 mV

Offset T

MIN

to T

MAX

2.0 0.7 1.5 mV

vs. Temperature 12 20 5 10 12 20 µV/°C

vs. Supply

(PSRR) 80 95 84 100 80 95 dB

vs. Supply (PSRR) T

MIN

to T

MAX

80 84 80 dB

Long Term Stability 15 15 15 µV/month

INPUT BIAS CURRENT

Either Input V

= 0 V 110 250 110 150 110 250 pA

Either Input @ T

MAX

= 0 V 2.5/7 5.7/16 7 9.6 113 256 nA

Either Input V

= +10 V 145 350 145 200 145 350 pA

Offset Current V

= 0 V 45 125 45 75 45 125 pA

Offset Current @ T

MAX

= 0 V 1.0/3 2.8/8 3 4.8 45 128 nA

MATCHING CHARACTERISTICS

Input Offset Voltage 0.6 1.5 0.3 0.5 0.6 1.0 mV

Input Offset Voltage T

MIN

to T

MAX

2.0 0.7 1.5 mV

Input Offset Voltage Drift 20 20 20 µV/°C

Input Bias Current 125 75 125 pA

Crosstalk @ 1 kHz 120 120 120 dB

@ 100 kHz 90 90 90 dB

FREQUENCY RESPONSE

Gain BW, Small Signal G = –1 8 13 9 13 8 13 MHz

Slew Rate, Unity Gain G = –1 45 75 50 75 45 75 V/µs

Full Power Response V

= 20 V p-p 600 600 600 kHz

Settling Time to 0.01%

G = 1 0.5 0.75 0.5 0.75 0.5 0.75 µs

Total Harmonic f = 1 kHz

Distortion R1 ≥ 2 kΩ

= 3 V rms 0.0001 0.0001 0.0001 %

INPUT IMPEDANCE

Differential 2.5 × l0

i5.5 2.5 × l0

i5.5 ΩipF

Common Mode 2.5 × l0

i5.5 2.5 × l0

i5.5 ΩipF

INPUT VOLTAGE RANGE

Differential

±20 ±20 ±20 V

Common-Mode Voltage +14.5, –11.5 +14.5, –11.5 +14.5, –11.5 V

Over Max Operating Range

–11 +13 –11 +13 –11 +13 V

Common-Mode Rejection Ratio V

= ±10 V 78 88 82 88 78 88 dB

MIN

to T

MAX

76 84 80 84 76 84 dB

= ±11 V 72 84 78 84 72 84 dB

MIN

to T

MAX

70 80 74 80 70 80 dB

INPUT VOLTAGE NOISE 0.1 to 10 Hz 2 2 2 µV p-p

f = 10 Hz 45 45 45 nV/ÏHz

f = 100 Hz 22 22 22 nV/ÏHz

f = 1 kHz 18 18 18 nV/ÏHz

f = 10 kHz 16 16 16 nV/ÏHz

INPUT CURRENT NOISE f = 1 kHz 0.01 0.01 0.01 pA/ÏHz

OPEN LOOP GAIN V

= ±10 V

R1 ≥ 2 kΩ 150 300 175 300 150 300 V/mV

MIN

to T

MAX

75 200 75 200 65 175 V/mV

OUTPUT CHARACTERISTICS

Voltage R1 ≥ 2 kΩ +13, –12.5 +13.9, –13.3 +13, –12.5 +13.9, –13.3 +13, –12.5 +13.9, –13.3 V

MIN

to T

MAX

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

Current Short Circuit 25 25 25 mA

Max Capacitive Load Gain = –1 50 50 50 pF

Driving Capability Gain = –10 500 500 500 pF

POWER SUPPLY

Rated Performance ±15 ±15 ±15 V

Operating Range 64.5 618 64.5 618 64.5 618 V

Quiescent Current 7 10 7 8.0 7 10 mA

TEMPERATURE RANGE

Rated Performance 0 to +70/–40 to +85 –40 to +85 –55 to +125 °C

PACKAGE OPTIONS

8-Pin Plastic Mini-DIP (N-8) AD746JN

8-Pin Cerdip (Q-8) AD746AQ AD746BQ AD746SQ

8-Pin Surface Mount (R-8) AD746JR

Tape and Reel AD746JR-REEL

Chips AD746SCHIPS

TRANSISTOR COUNT 54 54 54

P1-P3 P4-P6 P7-P9

AD746JRZ

Mfr. #:

Buy AD746JRZ

Manufacturer:

Analog Devices Inc.

Description:

Precision Amplifiers DUAL PREC BIFET 13MHz 18V

Lifecycle:

New from this manufacturer.

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AD746JRZ

AD746JRZ

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