Precision, Very Low Noise, Low Input Bias Current,

Wide Bandwidth JFET Operational Amplifiers

AD8510/AD8512/AD8513

Rev. E

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FEATURES

Fast settling time: 500 ns to 0.1%

Low offset voltage: 400 µV max

Low input bias current: 25 pA typ

Dual-supply operation: ±5 V to ±15 V

Low noise: 8 nV/√Hz

Low distortion: 0.0005%

No phase reversal

Unity gain stable

APPLICATIONS

Instrumentation

Multipole filters

Precision current measurement

Photodiode amplifiers

Sensors

Audio

PIN CONFIGURATIONS

AD8512

OUT A

–IN A

+IN A

V–

V+

OUT B

–IN B

+IN B

1

TOP VIEW

(Not to Scale)

4

8

5

AD8512

TOP VIEW

(Not to Scale)

OUT A

–IN A

+IN A

V–

V+

OUT B

–IN B

+IN B

Figure 1. 8-Lead MSOP (RM Suffix)

Figure 2. 8-Lead SOIC (R Suffix)

AD8510

TOP VIEW

(Not to Scale)

NC

–IN

+IN

V–

NC

V+

OUT

NC

AD8510

TOP VIEW

(Not to Scale)

NC

–IN

+IN

V–

NC

V+

OUT

NC

Figure 3. 8-Lead MSOP (RM Suffix)

Figure 4. 8-Lead SOIC (R Suffix)

AD8513

TOP VIEW

(Not to Scale)

OUT A

1

–IN A

2

+IN A

3

V+

4

+IN B

5

OUT D

–IN D

+IN D

V–

+IN C

14

13

12

11

10

–IN B

6

OUT B

7

–IN C

OUT C

9

8

AD8513

TOP VIEW

(Not to Scale)

OUT A

1

–IN A

+IN A

V+

+IN B

OUT D

–IN D

+IN D

V–

+IN C

14

–IN B

OUT B

7

–IN C

OUT C

8

Figure 5. 14-Lead SOIC (R Suffix)

Figure 6. 14-Lead TSSOP (RU Suffix)

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 measure-

ments 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.

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 a great choice for audio

applications.

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

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

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

SOIC and TSSOP packages.

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

+125°C extended industrial temperature range.