AD8512ARMZ Analog Devices Inc, AD8512ARMZ Datasheet

AD8512ARMZ

Manufacturer Part Number

AD8512ARMZ

Description

PRECISION LOW NOISE JFET AMPLIFIER

Manufacturer

Analog Devices Inc

Datasheet

1.AD8510ARZ.pdf (20 pages)

Specifications of AD8512ARMZ

Rohs Compliant

YES

Design Resources

Precision, Bipolar Configuration for the AD5546/56 DAC (CN0024) Precision, Bipolar, Configuration for AD5547/AD5557 DAC (CN0028)

Amplifier Type

J-FET

Number Of Circuits

Slew Rate

20 V/µs

Gain Bandwidth Product

8MHz

Current - Input Bias

25pA

Voltage - Input Offset

100µV

Current - Supply

2.2mA

Current - Output / Channel

70mA

Voltage - Supply, Single/dual (±)

±4.5 V ~ 18 V

Operating Temperature

-40°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

8-MSOP, Micro8™, 8-uMAX, 8-uSOP,

Op Amp Type

Low Noise

No. Of Amplifiers

Bandwidth

8MHz

Supply Voltage Range

Â± 5V To Â± 15V

Amplifier Case Style

MSOP

No. Of Pins

Operating Temperature Range

-40Â°C To +125Â°C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Output Type

-3db Bandwidth

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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FEATURES

Fast settling time: 500 ns to 0.1%

Low offset voltage: 400 μV maximum

Low T

Low input bias current: 25 pA typical at V

Dual-supply operation: ±5 V to ±15 V

Low noise: 8 nV/√Hz typical at f = 1 kHz

Low distortion: 0.0005%

No phase reversal

Unity gain stable

APPLICATIONS

Instrumentation

Multipole filters

Precision current measurement

Photodiode amplifiers

Sensors

Audio

GENERAL DESCRIPTION

The AD8510/AD8512/AD8513 are single-, dual-, and quad-

precision JFET amplifiers that feature low offset voltage, input

bias current, input voltage noise, and input current noise.

The combination of low offsets, low noise, and very low input

bias currents makes these amplifiers especially suitable for high

impedance sensor amplification and precise current measurements

using shunts. The combination of dc precision, low noise, and

fast settling time results in superior accuracy in medical

instruments, electronic measurement, and automated test

equipment. Unlike many competitive amplifiers, the AD8510/

AD8512/AD8513 maintain their fast settling performance even

with substantial capacitive loads. Unlike many older JFET

amplifiers, the AD8510/AD8512/AD8513 do not suffer from

output phase reversal when input voltages exceed the maximum

common-mode voltage range.

Rev. I

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. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

: 1 μV/°C typical

= ±15 V

Precision, Very Low Noise, Low Input Bias Current,

Wide Bandwidth JFET Operational Amplifiers

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

Tel: 781.329.4700

Fax: 781.461.3113

Fast slew rate and great stability with capacitive loads make the

AD8510/AD8512/AD8513 a perfect fit for high performance

filters. Low input bias currents, low offset, and low noise result

in a wide dynamic range of photodiode amplifier circuits. Low

noise and distortion, high output current, and excellent speed

make the AD8510/AD8512/AD8513 great choices for audio

applications.

The AD8510/AD8512 are both available in 8-lead narrow SOIC_N

and 8-lead MSOP packages. MSOP-packaged parts are only

available in tape and reel. The AD8513 is available in 14-lead

SOIC_N and TSSOP packages.

The AD8510/AD8512/AD8513 are specified over the −40°C to

+125°C extended industrial temperature range.

OUT B

OUT A

Figure 5. 14-Lead SOIC_N (R Suffix)

Figure 1. 8-Lead MSOP (RM Suffix)

Figure 3. 8-Lead MSOP (RM Suffix)

NULL

+IN A

+IN B

–IN B

–IN A

+IN A

–IN

+IN

V+

V–

NC = NO CONNECT

(Not to Scale)

AD8513

TOP VIEW

AD8510

TOP VIEW

AD8512

TOP VIEW

AD8510/AD8512/AD8513

PIN CONFIGURATIONS

OUT D

–IN D

+IN D

V–

+IN C

–IN C

OUT C

V+

OUT

NULL

V+

OUT B

–IN B

+IN B

OUT B

OUT A

Figure 6. 14-Lead TSSOP (RU Suffix)

OUT A

NULL

Figure 2. 8-Lead SOIC_N (R Suffix)

Figure 4. 8-Lead SOIC_N (R Suffix)

+IN B

–IN B

–IN A

+IN A

–IN A

+IN A

+IN

–IN

V–

V+

V–

NC = NO CONNECT

(Not to Scale)

AD8510

TOP VIEW

AD8513

TOP VIEW

AD8512

TOP VIEW

www.analog.com

OUT

NULL

OUT D

–IN D

+IN D

V–

+IN C

–IN C

OUT C

V+

OUT B

–IN B

+IN B

Related parts for AD8512ARMZ

AD8512ARMZ Summary of contents

Page 1

FEATURES Fast settling time: 500 ns to 0.1% Low offset voltage: 400 μV maximum Low μV/°C typical C OS Low input bias current typical at V Dual-supply operation: ± ±15 V Low ...

AD8510/AD8512/AD8513 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Pin Configurations ........................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics ............................................................. 4 Absolute Maximum Ratings ............................................................ 6 ESD Caution .................................................................................. 6 Typical Performance ...

Page 3

SPECIFICATIONS @ V = ± 25°C, unless otherwise noted Table 1. Parameter INPUT CHARACTERISTICS 1 Offset Voltage (B Grade) Offset Voltage (A Grade) Input Bias Current Input Offset Current Input ...

Page 4

AD8510/AD8512/AD8513 ELECTRICAL CHARACTERISTICS @ V = ± 25°C, unless otherwise noted Table 2. Parameter INPUT CHARACTERISTICS 1 Offset Voltage (B Grade) Offset Voltage (A Grade) Input Bias Current Input Offset ...

Page 5

Parameter NOISE PERFORMANCE Voltage Noise Density Peak-to-Peak Voltage Noise 1 AD8510/AD8512 only. Symbol Conditions 100 kHz kHz e p-p 0 bandwidth ...

Page 6

AD8510/AD8512/AD8513 ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Supply Voltage Input Voltage Output Short-Circuit Duration to GND Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature (Soldering, 10 sec) Electrostatic Discharge (Human Body Model) Stresses above those listed under ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS 120 V = ±15V 25°C A 100 –0.5 –0.4 –0.3 –0.2 –0.1 0 0.1 INPUT OFFSET VOLTAGE (mV) Figure 7. Input Offset Voltage Distribution ...

Page 8

AD8510/AD8512/AD8513 2 25°C A 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1 SUPPLY VOLTAGE (V+ – V–) Figure 13. AD8512 Supply Current per Amplifier vs. Supply Voltage ...

Page 9

100 –10 –20 –30 1k 10k 100k 1M FREQUENCY (Hz) Figure 19. Closed-Loop Gain vs. Frequency 120 100 80 ...

Page 10

AD8510/AD8512/AD8513 280 245 210 175 140 105 FREQUENCY (Hz) Figure 25. Voltage Noise Density vs. Frequency V = ±15V 2kΩ 100pF ...

Page 11

V = ±5V SY 270 V = 50mV IN 240 210 180 150 120 A = 100 100 1k 10k 100k 1M FREQUENCY (Hz) Figure 31. ...

Page 12

AD8510/AD8512/AD8513 120 100 (µV/° Figure 37. AD8513 T V Distribution 25°C A 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 ...

Page 13

GENERAL APPLICATION INFORMATION INPUT OVERVOLTAGE PROTECTION The AD8510/AD8512/AD8513 have internal protective circuitry that allows voltages as high as 0.7 V beyond the supplies to be applied at the input of either terminal without causing damage. For higher input voltages, a ...

Page 14

AD8510/AD8512/AD8513 SETTLING TIME Settling time is the time it takes the output of the amplifier to reach and remain within a percentage of its final value after a pulse is applied at the input. The AD8510/AD8512/AD8513 settle to within 0.01% ...

Page 15

Figure 46 shows a scope plot of the output of the AD8510/AD8512/ AD8513 in response to a 400 mV pulse. The circuit is configured in positive unity gain (worst case) with a load experience of 500 pF ±15V ...

Page 16

AD8510/AD8512/AD8513 PRECISION RECTIFIERS Rectifying circuits are used in a multitude of applications. One of the most popular uses is in the design of regulated power supplies, where a rectifier circuit is used to convert an input sinusoid to a unipolar ...

Page 17

I-V CONVERSION APPLICATIONS Photodiode Circuits Common applications for I-V conversion include photodiode circuits where the amplifier is used to convert a current emitted by a diode placed at the positive input terminal into an output voltage. The AD8510/AD8512/AD8513’s low input ...

Page 18

AD8510/AD8512/AD8513 TIME (2ms/DIV) Figure 55. Pulse-Width Modulation Crosstalk Crosstalk, also known as channel separation measure of signal feedthrough from one channel to another on the same IC. The AD8512/AD8513 have a channel separation of better than −90 dB ...

Page 19

OUTLINE DIMENSIONS 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 0.51 (0.0201) 0.10 0.31 (0.0122) 0.25 (0.0098) SEATING 0.17 (0.0067) ...

Page 20

... AD8510BRZ-REEL 1 −40°C to +125°C 1 AD8510BRZ-REEL7 −40°C to +125°C 1 AD8512ARMZ-REEL −40°C to +125°C 1 AD8512ARMZ −40°C to +125°C AD8512AR −40°C to +125°C AD8512AR-REEL −40°C to +125°C AD8512AR-REEL7 −40°C to +125°C 1 AD8512ARZ −40°C to +125°C ...

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