ANALOG DEVICES AD8519 Service Manual

8 MHz Rail-to-Rail

www.BDTIC.com/ADI

FEATURES

Space-saving SC70 and SOT-23 packaging Wide bandwidth: 8 MHz @ 5 V Low offset voltage: 1.2 mV maximum Rail-to-rail output swing

2.9 V/μs slew rate Unity gain stable Single-supply operation: 2.7 V to 12 V

APPLICATIONS

Portable communications Microphone amplifiers Portable phones Sensor interface Active filters PCMCIA cards ASIC input drivers Wearable computers Battery-powered devices Voltage reference buffers Personal digital assistants

Operational Amplifiers

AD8519/AD8529

PIN CONFIGURATIONS

1

NC

–IN A

2

+IN A

3

AD8519

4

V–

NC = NO CONNECT

Figure 1. 8-Lead SOIC (R Suffix)

AD8519

1

OUT A

V–

2

+IN A

3

Figure 2. 5-Lead SC70 and SOT-23 (KS and RJ Suffixes)

1

OUT A

–IN A

+IN A

V–

Figure 3. 8-Lead SOIC and MSOP (R and RM Suffixes)

AD8529

2

3

4

NC

8

V+

7

6

OUT A

NC

5

1756-001

V+

5

4

–IN A

01756-002

V+

8

OUT B

7

6

–IN B

5

+IN B

01756-003

GENERAL DESCRIPTION

The AD8519 and AD8529 are rail-to-rail output bipolar amplifiers with a unity gain bandwidth of 8 MHz and a typical voltage offset of less than 1 mV. The AD8519 brings precision and bandwidth to the SC70 and SOT-23 packages. The low supply current makes the AD8519/AD8529 ideal for batterypowered applications. The rail-to-rail output swing of the AD8519/AD8529 is larger than standard video op amps, making them useful in applications that require greater dynamic range than standard video op amps. The 2.9 V/μs slew rate makes the AD8519/AD8529 a good match for driving ASIC inputs such as voice codecs.

The small SC70 package makes it possible to place the AD8519 ne

xt to sensors, reducing external noise pickup.

The AD8519/AD8529 is specified over the extended industrial (−40°C t

o +125°C) temperature range. The AD8519 is available in 5-lead SC70 and 5-lead SOT-23 packages, and an 8-lead SOIC surface-mount package. The AD8529 is available in 8-lead SOIC and 8-lead MSOP packages.

Rev. D

Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her 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.

AD8519/AD8529

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TABLE OF CONTENTS

Features.............................................................................................. 1

ESD Caution...................................................................................7

Applications....................................................................................... 1

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

General Description ......................................................................... 1

Revision History ............................................................................... 2

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

Electrical Characteristics ............................................................. 3

Absolute Maximum Ratings............................................................ 7

Thermal Resistance ...................................................................... 7

REVISION HISTORY

5/07—Rev. C to Rev. D

Changes to Features.......................................................................... 1

Changes to General Description .................................................... 1

Changes to Two-Element Bridge Amplifier Section.................. 13

Updated Outline Dimensions....................................................... 14

2/03—Rev. B to Rev. C

Changed μSOIC to MSOP.................................................Universal

Changed SO-8 to R-8.........................................................Universal

Changes to Precision Full-Wave Rectifier section ....................... 9

Changes to 10× Microphone Preamp Meets PC99

Specifications section................................................................... 9

Updated Outline Dimensions....................................................... 12

Typical Performance Characteristics..............................................8

Applications Information.............................................................. 12

Maximum Power Dissipation................................................... 12

Precision Full-Wave Rectifier ................................................... 12

10× Microphone Preamp Meets PC99 Specifications........... 13

Two-Element Varying Bridge Amplifier................................. 13

Outline Dimensions....................................................................... 14

Ordering Guide .......................................................................... 15

Rev. D | Page 2 of 16

AD8519/AD8529

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SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

VS = 5.0 V, V− = 0 V, VCM = 2.5 V, TA = 25°C, unless otherwise noted.

Table 1.

Parameter Symbol Conditions Min Typ Max Unit

INPUT CHARACTERISTICS

Offset Voltage VOS AD8519AKS, AD8519ART 600 1100 μV

−40°C ≤ TA ≤ +125°C 800 1300 μV AD8519AR (R-8), AD8529 600 1000 μV

−40°C ≤ TA ≤ +125°C 1100 μV Input Bias Current IB 300 nA

−40°C ≤ TA ≤ +125°C 400 nA Input Offset Current IOS ±50 nA

−40°C ≤ TA ≤ +125°C ±100 nA Input Voltage Range V Common-Mode Rejection Ratio CMRR 0 V ≤ VCM ≤ 4.0 V, −40°C ≤ TA ≤ +125°C 63 100 dB Large Signal Voltage Gain A R R Offset Voltage Drift ∆VOS/∆T 2 μV/°C Bias Current Drift ∆IB/∆T 500 pA/°C

OUTPUT CHARACTERISTICS

Output Voltage Swing High V

−40°C ≤ TA ≤ +125°C 4.90 V I Output Voltage Swing Low V

−40°C ≤ TA ≤ +125°C 80 mV I Short-Circuit Current I Maximum Output Current I

POWER SUPPLY

Power Supply Rejection Ratio PSRR VS = 2.7 V to 7 V 110 dB

−40°C ≤ TA ≤ +125°C 80 dB Supply Current/Amplifier I

−40°C ≤ TA ≤ +125°C 1400 μA

DYNAMIC PERFORMANCE

Slew Rate SR 1 V < V Settling Time tS To 0.01% 1200 ns Gain Bandwidth Product GBP 8 MHz Phase Margin Φm 60 Degrees

NOISE PERFORMANCE

Voltage Noise en p-p 0.1 Hz to 10 Hz 0.5 μV p-p Voltage Noise Density en f = 1 kHz 10 nV/√Hz Current Noise Density in f = 1 kHz 0.4 pA/√Hz

0 4 V

CM

R

VO

I

OH

I

OL

Short to ground, instantaneous ±70 mA

SC

±25 mA

OUT

V

SY

= 2 kΩ, 0.5 V < V

L

= 10 kΩ, 0.5 V < V

L

= 10 kΩ, −40°C ≤ TA ≤ +125°C 30 V/mV

L

= 250 μA

L

= 5 mA 4.80 V

L

= 250 μA

L

= 5 mA 200 mV

L

= 2.5 V 600 1200 μA

OUT

< 4 V, RL = 10 kΩ 2.9 V/μs

OUT

< 4.5 V 30 V/mV

OUT

< 4.5 V 50 100 V/mV

OUT

Rev. D | Page 3 of 16

AD8519/AD8529

www.BDTIC.com/ADI

VS = 3.0 V, V− = 0 V, VCM = 1.5 V, TA = 25°C, unless otherwise noted.

Table 2.

Parameter Symbol Conditions Min Typ Max Unit

INPUT CHARACTERISTICS

Offset Voltage VOS AD8519AKS, AD8519ART 700 1200 μV

−40°C ≤ TA ≤ +125°C 900 1400 μV AD8519AR (R-8), AD8529 700 1100 μV

−40°C ≤ TA ≤ +125°C 1200 μV Input Bias Current IB 300 nA Input Offset Current IOS ±50 nA Input Voltage Range VCM 0 2 V Common-Mode Rejection Ratio CMRR 0 V ≤ VCM ≤ 2.0 V,

−40°C ≤ TA ≤ +125°C 55 75 dB Large Signal Voltage Gain AVO RL = 2 kΩ, 0.5 V < V R

OUTPUT CHARACTERISTICS

Output Voltage Swing High VOH IL = 250 μA 2.90 V I Output Voltage Swing Low VOL IL = 250 μA 100 mV I

POWER SUPPLY

Power Supply Rejection Ratio PSRR VS = 2.5 V to 7 V, −40°C ≤ TA ≤ +125°C 60 80 dB Supply Current/Amplifier ISY V

−40°C ≤ TA ≤ +125°C 1300 μA

DYNAMIC PERFORMANCE

Slew Rate SR RL = 10 kΩ 1.5 V/μs Settling Time tS To 0.01% 2000 ns Gain Bandwidth Product GBP 6 MHz Phase Margin Φm 55 Degrees

NOISE PERFORMANCE

Voltage Noise Density en f = 1 kHz 10 nV/√Hz Current Noise Density in f = 1 kHz 0.4 pA/√Hz

= 10 kΩ 20 30 V/mV

L

= 5 mA 2.80 V

L

= 5 mA 200 mV

L

= 1.5 V 600 1100 μA

OUT

< 2.5 V 20 V/mV

OUT

Rev. D | Page 4 of 16

AD8519/AD8529

www.BDTIC.com/ADI

VS = 2.7 V, V− = 0 V, VCM = 1.35 V, TA = 25°C, unless otherwise noted.

Table 3.

Parameter Symbol Conditions Min Typ Max Unit

INPUT CHARACTERISTICS

Offset Voltage VOS AD8519AKS, AD8519ART 700 1400 μV

−40°C ≤ TA ≤ +125°C 900 1600 μV AD8519AR (R-8), AD8529 700 1200 μV

−40°C ≤ TA ≤ +125°C 1300 μV Input Bias Current IB 300 nA Input Offset Current I Input Voltage Range VCM 0 2 V Common-Mode Rejection Ratio CMRR 0 V ≤ VCM ≤ 1.7 V, −40°C ≤ TA ≤ +125°C 55 75 dB Large Signal Voltage Gain AVO RL = 2 kΩ, 0.5 V < V R

OUTPUT CHARACTERISTICS

Output Voltage Swing High V I Output Voltage Swing Low V I

POWER SUPPLY

Power Supply Rejection Ratio PSRR VS = 2.5 V to 7 V

−40°C ≤ TA ≤ +125°C 60 80 dB Supply Current/Amplifier ISY V

−40°C ≤ TA ≤ +125°C 1300 μA

DYNAMIC PERFORMANCE

Slew Rate SR RL = 10 kΩ 1.5 V/μs Settling Time tS To 0.01% 2000 ns Gain Bandwidth Product GBP 6 MHz Phase Margin Φm 55 Degrees

NOISE PERFORMANCE

Voltage Noise Density en f = 1 kHz 10 nV/√Hz Current Noise Density in f = 1 kHz 0.4 pA/√Hz

±50 nA

OS

< 2.2 V 20 V/mV

OUT

= 10 kΩ 20 30 V/mV

L

I

OH

I

OL

= 250 μA 2.60 V

L

= 5 mA 2.50 V

L

= 250 μA 100 mV

L

= 5 mA 200 mV

L

= 1.35 V 600 1100 μA

OUT

Rev. D | Page 5 of 16