AD648JRZ Analog Devices Inc, AD648JRZ Datasheet

AD648JRZ

Manufacturer Part Number

AD648JRZ

Description

IC OPAMP BIFET 1MHZ DUAL 8SOIC

Manufacturer

Analog Devices Inc

Datasheet

1.AD648JRZ.pdf (12 pages)

Specifications of AD648JRZ

Slew Rate

1.8 V/µs

Amplifier Type

J-FET

Number Of Circuits

Gain Bandwidth Product

1MHz

Current - Input Bias

5pA

Voltage - Input Offset

750µV

Current - Supply

340µA

Current - Output / Channel

15mA

Voltage - Supply, Single/dual (±)

±4.5 V ~ 18 V

Operating Temperature

0°C ~ 70°C

Mounting Type

Surface Mount

Package / Case

8-SOIC (3.9mm Width)

Op Amp Type

Precision

No. Of Amplifiers

Bandwidth

1MHz

Supply Voltage Range

Â± 4.5V To Â± 18V

Amplifier Case Style

SOIC

No. Of Pins

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Output Type

-3db Bandwidth

Lead Free Status / RoHS Status

Lead free / RoHS Compliant, Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

AD648JRZ

Manufacturer:

ADI/亚德诺

Quantity:

20 000

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PRODUCT DESCRIPTION

The AD648 is a matched pair of low power, precision mono-

lithic operational amplifiers. It offers both low bias current

(10 pA max, warmed up) and low quiescent current (400 µA

max) and is fabricated with ion-implanted FET and laser wafer

trimming technologies. Input bias current is guaranteed over the

AD648’s entire common-mode voltage range.

The economical J grade has a maximum guaranteed offset

voltage of less than 2 mV and an offset voltage drift of less than

20 µV/°C. This level of dc precision is achieved using Analog’s

laser wafer drift trimming process. The combination of low

quiescent current and low offset voltage drift minimizes changes

in input offset voltage due to self-heating effects. Five grades are

offered over the commercial, industrial and military temperature

ranges.

The AD648 is recommended for any dual supply op amp

application requiring low power and excellent dc and ac per-

formance. In applications such as battery-powered, precision

instrument front ends and CMOS DAC buffers, the AD648’s

excellent combination of low input offset voltage and drift, low

bias current, and low 1/f noise reduces output errors. High

common-mode rejection (82 dB, min on the “B” grade) and

high open-loop gain ensures better than 12-bit linearity in high

impedance, buffer applications.

The AD648 is pinned out in a standard dual op amp configura-

tion and is available in seven performance grades. The AD648J

and AD648K are rated over the commercial temperature range

of 0°C to 70°C. The AD648 and AD648B are rated over the

industrial temperature range of –40°C to +85°C. The AD648S

and AD648T are rated over the military temperature range of

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.

FEATURES

DC Performance

AC Performance

Available in Plastic Mini-DIP, CERDIP, and Plastic SOIC

MIL-STD-883B Parts Available

Surface Mount (SOIC) Package Available in Tape and

Single Version: AD548

400

10 pA max Bias Current, Warmed Up (AD648B)

1.8 V/ s Slew Rate

1 MHz Unity Gain Bandwidth

Packages

Reel in Accordance with EIA-481A Standard

V p-p Noise, 0.1 Hz to 10 Hz

V max Offset Voltage (AD648B)

V/ C max Drift (AD648B)

A max Quiescent Current

–55°C to +125°C and the AD648T* grade is available pro-

cessed to MIL-STD-883B, Rev. C.

The AD648 is available in an 8-lead plastic mini-DIP,

CERDIP, and SOIC.

*Not for new design, obsolete April 2002.

PRODUCT HIGHLIGHTS

1. A combination of low supply current, excellent dc and ac

2. The AD648 is pin compatible with industry standard dual

3. Guaranteed low input offset voltage (2 mV max) and drift

4. Analog Devices specifies each device in the warmed-up

5. Matching characteristics are excellent for all grades. The

6. Crosstalk between amplifiers is less than –120 dB at 1 kHz.

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

Tel: 781/329-4700

Fax: 781/326-8703

performance and low drift makes the AD648 the ideal op

amp for high performance, low power applications.

op amps such as the LF442, TL062, and AD642, enabling

designers to improve performance while achieving a reduc-

tion in power dissipation of up to 85%.

(20 µV/°C max) for the AD648J are achieved using Analog

Devices’ laser drift trimming technology.

condition, insuring that the device will meet its published

specifications in actual use.

input offset voltage matching between amplifiers in the

AD648J is within 2 mV.

Plastic Mini-Dip (N) Package,

Low Power BiFET Op Amp

CONNECTION DIAGRAM

Plastic SOIC (R) Package

CERDIP (Q) Package

and

Dual Precision,

AD648

www.analog.com

Related parts for AD648JRZ

AD648JRZ Summary of contents

Page 1

FEATURES DC Performance 400 A max Quiescent Current 10 pA max Bias Current, Warmed Up (AD648B max Offset Voltage (AD648B max Drift (AD648B p-p Noise, 0 Performance ...

Page 2

AD648–SPECIFICATIONS Model 1 INPUT OFFSET VOLTAGE Initial Offset MIN MAX vs. Temperature vs. Supply vs. Supply MIN MAX Long-Term Offset Stability INPUT BIAS CURREN 2 Either Input Either Input ...

Page 3

SPECIFICATIONS (Continued) Model OUTPUT CHARACTERISTICS ≥ 10 kΩ, Voltage @ MIN MAX ≥ 5 kΩ, Voltage @ MIN MAX Short Circuit Current POWER SUPPLY Rated Performance Operating Range Quiescent Current ...

Page 4

AD648 1 ABSOLUTE MAXIMUM RATINGS Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .± ...

Page 5

REV. E Typical Performance Characteristics— –5– AD648 ...

APPLICATION NOTES The AD648 is a pair of JFET-input op amps with a guaranteed maximum I of less than 10 pA, and offset and drift laser- B trimmed to 1.0 mV and 10 µV/°C, respectively (AD648B). AC specs include 1 ...

Page 8

AD648 Figure 23c shows a diode clamp protection scheme for an I-to-V converter using low leakage diodes. Because the diodes are connected to the op amp’s summing junction, which is a virtual ground, their leakage contribution is minimal. Figure 23c. ...

Page 9

The AD648 in this configuration provides a 700 kHz small signal bandwidth and 1.8 V/µs typical slew rate. The 33 pF capacitor across the feedback resistor optimizes the circuit’s response. The oscilloscope photos in Figures 26a and 26b show small ...

Page 10

AD648 INSTRUMENTATION AMPLIFIER The AD648J’s maximum input current per amplifier makes it an excellent building block for the high input impedance instrumentation amplifier shown in Figure 29. Total current drain for this circuit is under 600 µA. ...

Page 11

LOG RATIO AMPLIFIER Log ratio amplifiers are useful for a variety of signal conditioning applications, such as linearizing exponential transducer outputs and compressing analog signals having a wide dynamic range. The AD648’s picoamp level input current and low input offset ...

Page 12

AD648 Mini-DIP (N) Package Dimensions shown in inches and (millimeters) COPLANARITY 0.25 (0.0098) 0.10 (0.0040) CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN COMPLIANT ...

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AD648JRZ Analog Devices Inc, AD648JRZ Datasheet

AD648JRZ

Specifications of AD648JRZ

Available stocks

Related parts for AD648JRZ

AD648JRZ Summary of contents

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