Analog Devices AD8510 2 3 e Datasheet

Precision, Very Low Noise, Low Input Bias Current,

A

A

A

O

A

Wide Bandwidth JFET Operational Amplifiers

FEATURES

Fast settling time: 500 ns to 0.1%
Low offset voltage: 400 µV max
Low T
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

GENERAL DESCRIPTION

The AD8510, AD8512, AD8513 are single-, dual-, and quad­precision 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.

: 1 µV/°C typ

CVOS

AD8510/AD8512/AD8513

PIN CONFIGURATIONS

8

V+
OUT B
–IN B
+IN B

5

NC
V+
OUT
NC

14

OUT D
–IN D

13

+IN D

12

V–

11

+IN C

10

–IN C

9

OUT C

8

02729-D-001

02729-D-003

02729-D-005

OUT

–IN A
+IN A

NC
–IN

+IN

V–

OUT

–IN A
+IN A

+IN B
–IN B

OUT B

V–

V+

AD8512

TOP VIEW

(Not to Scale)

AD8510

TOP VIEW

(Not to Scale)

1

AD8513

TOP VIEW

(Not to Scale)

7

V+
OUT B
–IN B
+IN B

NC
V+
OUT
NC

02729-D-004

14

OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C

8

–IN A
+IN A

V–

1

AD8512

TOP VIEW

(Not to Scale)
4

OUT

Figure 1. 8-Lead MSOP (RM Suffix) Figure 2. 8-Lead SOIC (R Suffix)

NC

AD8510

–IN

TOP VIEW

+IN

(Not to Scale)

V–

Figure 3. 8-Lead MSOP (RM Suffix) Figure 4. 8-Lead SOIC (R Suffix)

1

OUT

–IN A

2

+IN A

3

AD8513

V+

4

TOP VIEW

(Not to Scale)

+IN B

5

–IN B

6

UT B

7

Figure 5. 14-Lead SOIC (R Suffix) Figure 6. 14-Lead TSSOP (RU Suffix)

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.

02729-D-002

02729-D-006

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.
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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone]
Fax: [phone] © 2004 Analog Devices, Inc. All rights reserved.

www.analog.com

AD8510/AD8512/AD8513

TABLE OF CONTENTS

Specifications............................................................................................3

Total Noise Including Source Resistors................................... 13

Electrical Characteristics............................................................. 4

Absolute Maximum Ratings .................................................................. 6

ESD Caution.................................................................................. 6

Typical Performance Characteristics ....................................................7

General Application Information........................................................13

Input Overvoltage Protection................................................... 13

Output Phase Reversal............................................................... 13

THD + Noise............................................................................... 13

REVISION HISTORY

6/04—Data Sheet Changed from Rev. D to Rev. E

Changes to Format.............................................................Universal

Changes to Specifications................................................................ 3

Updated Outline Dimensions....................................................... 19

10/03—Data Sheet Changed from Rev. C to Rev. D

Added AD8513 Model ......................................................Universal

Changes to Specifications................................................................ 3

Added Figures 36 through 40........................................................ 10

Added new Figures 55 and 57....................................................... 17

Changes to Ordering Guide.......................................................... 20

9/03—Data Sheet Changed from Rev. B to Rev. C

Changes to Ordering Guide ........................................................... 4

Updated Figure 2 ............................................................................ 10

Changes to Input Overvoltage Protection section .................... 10

Changes to Figures 10 and 11 ....................................................... 12

Changes to Photodiode Circuits section ..................................... 13

Changes to Figures 13 and 14 ....................................................... 13

Deleted Precision Current Monitoring section .......................... 14

Updated Outline Dimensions ...................................................... 15

Settling Time............................................................................... 14

Overload Recovery Time .......................................................... 14

Capacitive Load Drive ............................................................... 14

Open-Loop Gain and Phase Response.................................... 15

Precision Rectifiers..................................................................... 16

I-V Conversion Applications.................................................... 17

Outline Dimensions ..............................................................................19

Ordering Guide .......................................................................... 20

3/03—Data Sheet Changed from Rev. A to Rev. B

Updated Figure 5............................................................................ 11

Updated Outline Dimensions....................................................... 15

8/02—Data Sheet Changed from Rev. 0 to Rev. A

Added AD8510 Model .......................................................Universal

Added Pin Configurations ...............................................................1

Changes to Specifications.................................................................2

Changes to Ordering Guide.............................................................4

Changes to TPCs 2 and 3..................................................................5

Added new TPCs 10 and 12.............................................................6

Replaced TPC 20 ...............................................................................8

Replaced TPC 27 ...............................................................................9

Changes to General Application Information Section .............. 10

Changes to Figure 5........................................................................ 11

Changes to I-V Conversion Applications Section...................... 13

Changes to Figures 13 and 14....................................................... 13

Changes to Figure 17...................................................................... 14

Rev. E | Page 2 of 20

AD8510/AD8512/AD8513

SPECIFICATIONS

@ VS = ±5 V, VCM = 0 V, TA = 25°C, unless otherwise noted.

Table 1.

Parameter Symbol Conditions Min Typ Max Unit

INPUT CHARACTERISTICS

Offset Voltage (B Grade)1 V

OS

−40°C < TA < +125°C 0.8 mV
Offset Voltage (A Grade) V

OS

−40°C < TA < +125°C 1.8 mV
Input Bias Current I

B

−40°C < TA < +85°C 0.7 nA

−40°C < TA < +125°C 7.5 nA
Input Offset Current I

OS

−40°C < TA < +85°C 0.3 nA

−40°C < TA < +125°C 0.5 nA
Input Capacitance

Differential 12.5 pF

Common-Mode 11.5 pF
Input Voltage Range −2.0 +2.5 V
Common-Mode Rejection Ratio CMRR VCM = −2.0 V to +2.5 V 86 100 dB
Large Signal Voltage Gain A

VO

Offset Voltage Drift (B Grade)1 ∆VOS/∆T 0.9 5 µV/°C
Offset Voltage Drift (A Grade) ∆VOS/∆T 1.7 12 µV/°C

OUTPUT CHARACTERISTICS

Output Voltage High VOH RL = 10 kΩ +4.1 +4.3 V
Output Voltage Low VOL −40°C < TA < +125°C −4.9 −4.7 V
Output Voltage High VOH RL = 2 kΩ, +3.9 + 4.2 V
Output Voltage Low VOL −40°C < TA < +125°C −4.9 −4.5 V
Output Voltage High VOH RL = 600 Ω +3.7 +4.1 V
Output Voltage Low VOL −40°C < TA < +125°C −4.8 −4.2 V
Output Current I

OUT

POWER SUPPLY

Power Supply Rejection Ratio PSRR VS = ±4.5 V to ±18 V 86 130 dB
Supply Current/Amplifier I

SY

AD8510/AD8512/AD8513 VO = 0 V 2.0 2.3 mA

AD8510/AD8512 −40°C < TA < +125°C 2.5 mA

AD8513 −40°C < TA < +125°C 2.75 mA

DYNAMIC PERFORMANCE

Slew Rate SR RL = 2 kΩ 20 V/µs
Gain Bandwidth Product GBP 8 MHz
Settling Time tS To 0.1%, 0 V to 4 V Step, G = +1 0.4 µs
THD + Noise THD + N 1 kHz, G = +1, RL = 2 kΩ 0.0005 %
Phase Margin Φ

O

NOISE PERFORMANCE

Voltage Noise Density en f = 10 Hz 34 nV/√Hz

f = 100 Hz 12 nV/√Hz
f = 1 kHz 8.0 10 nV/√Hz
f = 10 kHz 7.6 nV/√Hz

Peak-to-Peak Voltage Noise en p-p 0.1 Hz to 10 Hz Bandwidth 2.4 5.2 µV p-p

1

AD8510/AD8512 only.

0.08 0.4 mV

0.1 0.9 mV

21 75 pA

5 50 pA

RL = 2 kΩ, VO = −3 V to +3 V 65 107 V/mV

± 40 ± 54 mA

44.5 Degrees

Rev. E | Page 3 of 20

AD8510/AD8512/AD8513

ELECTRICAL CHARACTERISTICS

@ VS = ±15 V, VCM = 0 V, TA = 25°C, unless otherwise noted.

Table 2.

Parameter Symbol Conditions Min Typ Max Unit

INPUT CHARACTERISTICS

Offset Voltage (B Grade)1 VOS 0.08 0.4 mV

−40°C < TA < +125°C 0.8 mV

Offset Voltage (A Grade) VOS 0.1 1.0 mV

−40°C < TA < +125°C 1.8 mV
Input Bias Current IB 25 80 pA

−40°C < TA < +85°C 0.7 nA

−40°C < TA < +125°C 10 nA
Input Offset Current I

OS

−40°C < TA < +85°C 0.3 nA

−40°C < TA < +125°C 0.5 nA
Input Capacitance

Differential 12.5 pF

Common-Mode 11.5 pF
Input Voltage Range −13.5 +13.0 V
Common-Mode Rejection Ratio CMRR VCM = −12.5 V to +12.5 V 86 108 dB
Large Signal Voltage Gain AVO VO = −13.5 V to +13.5 V 115 196 V/mV

R

Offset Voltage Drift (B Grade)1 ∆VOS/∆T 1.0 5 µV/°C
Offset Voltage Drift (A Grade) ∆VOS/∆T 1.7 12 µV/°C

OUTPUT CHARACTERISTICS

Output Voltage High VOH RL = 10 kΩ +14.0 +14.2 V
Output Voltage Low VOL −40°C < TA < +125°C −14.9 −14.6 V
Output Voltage High VOH RL = 2 kΩ +13.8 +14.1 V
Output Voltage Low VOL −40°C < TA < +125°C –14.8 −14.5 V
Output Voltage High VOH RL = 600 Ω, TA = 25°C +13.5 +13.9 V

−40°C < TA < +125°C 11.4 V
Output Voltage Low VOL RL = 600 Ω, TA = 25°C −14.3 −13.8 V

−40°C < TA < +125°C −12.1 V
Output Current I

±70 mA

OUT

POWER SUPPLY

Power Supply Rejection Ratio PSRR VS = ±4.5 V to ±18 V 86 dB
Supply Current/Amplifier ISY

AD8510/AD8512/AD8513 VO = 0 V 2.2 2.5 mA
AD8510/AD8512 −40°C < TA < +125°C 2.6 mA
AD8513 −40°C < TA < +125°C 3.0 mA

DYNAMIC PERFORMANCE

Slew Rate SR RL = 2 kΩ 20 V/µs
Gain Bandwidth Product GBP 8 MHz
Settling Time t

S

To 0.01%, 0 V to 10 V Step, G = +1 0.9 µs

THD + Noise THD + N 1 kHz, G = +1, RL = 2 kΩ 0.0005 %
Phase Margin ΦO 52 Degrees

6 75 pA

= 2 kΩ, VCM = 0 V

L

To 0.1%, 0 V to 10 V Step, G = +1 0.5 µs

Rev. E | Page 4 of 20

AD8510/AD8512/AD8513

Parameter Symbol Conditions Min Typ Max Unit

NOISE PERFORMANCE

Voltage Noise Density en f = 10 Hz 34 nV/√Hz
f = 100 Hz 12 nV/√Hz
f = 1 kHz 8.0 10 nV/√Hz
f = 10 kHz 7.6 nV/√Hz

Peak-to-Peak Voltage Noise en p-p 0.1 Hz to 10 Hz Bandwidth 2.4 5.2 µV p-p

1

AD8510/AD8512 only.

Rev. E | Page 5 of 20

AD8510/AD8512/AD8513

ABSOLUTE MAXIMUM RATINGS

Table 3. AD8510/AD8512/AD8513 Stress Ratings

Parameter Rating

Supply Voltage ±18 V
Input Voltage ±V
Output Short-Circuit Duration to GND

Observe Derating
Curves

Storage Temperature Range

R, RM Packages −65°C to +150°C
Operating Temperature Range −40°C to +125°C
Junction Temperature Range
R, RM Packages −65°C to +150°C
Lead Temperature Range

300°C

(Soldering, 10 sec)
Electrostatic Discharge (HBM) 2000 V

ESD CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
this product features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.

1

Table 4. Thermal Resistance

Package Type θ

8-Lead MSOP (RM) 210 45 °C/W

S

8-Lead SOIC (R) 158 43 °C/W
14-Lead SOIC (R) 120 36 °C/W
14-Lead TSSOP (RU) 180 35 °C/W

1

Stresses above those listed under Absolute Maximum Ratings may cause

permanent damage to the device. This is a stress rating only; functional
operation of the device at these or any other conditions above those listed in
the operational sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device
reliability.

2

θJA is specified for worst-case conditions, i.e., θJA is specified for device

soldered in circuit board for surface-mount packages.

2

JA

θ

Unit

JC

Rev. E | Page 6 of 20