Analog Devices AD8534, AD8532, AD8531 Datasheet

Low Cost, 250 mA Output

AD8531

NULL

–IN A

+IN A

V–

V+

OUT A

NULL

NC

1

2

3
4

8

7

6
5

AD8532

OUT A

–IN A

+IN A

V–

V+
OUT B

+IN B

1

2

3

4

8

7

6

5

–IN B

AD8534

1

2

3

4

14

13

12

11

OUT A

–IN A

+IN A

V+

V–

+IN D

–IN D

OUT D

5

6

7

10

9

8

+IN B

–IN B

OUT B

OUT C

–IN C

+IN C

a

Single-Supply Amplifiers

AD8531/AD8532/AD8534

FEATURES
Single-Supply Operation: 2.7 Volts to 6 Volts
High Output Current: ⴞ250 mA

8-Lead SO

(R Suffix)

Low Supply Current: 750 ␮A/Amplifier
Wide Bandwidth: 3 MHz
Slew Rate: 5 V/␮s
No Phase Reversal
Low Input Currents
Unity Gain Stable

APPLICATIONS
Multimedia Audio
LCD Driver
ASIC Input or Output Amplifier

8-Lead SO

(R Suffix)

Headphone Driver

GENERAL DESCRIPTION

The AD8531, AD8532 and AD8534 are single, dual and quad
rail-to-rail input and output single-supply amplifiers featuring
250 mA output drive current. This high output current makes
these amplifiers excellent for driving either resistive or capacitive
loads. AC performance is very good with 3 MHz bandwidth,

8-Lead TSSOP

(RU Suffix)

5 V/µs slew rate and low distortion. All are guaranteed to oper-

ate from a +3 volt single supply as well as a +5 volt supply.

The very low input bias currents enable the AD853x to be used
for integrators and diode amplification and other applications

OUT A

–IN A
+IN A

V–

requiring low input bias current. Supply current is only 750 µA

per amplifier at 5 volts, allowing low current applications to
control high current loads.

14-Lead Epoxy DIP

(N Suffix)

Applications include audio amplification for computers, sound
ports, sound cards and set-top boxes. The AD853x family is
very stable and capable of driving heavy capacitive loads, such as
those found in LCDs.

The ability to swing rail-to-rail at the inputs and outputs enables
designers to buffer CMOS DACs, ASICs or other wide output
swing devices in single-supply systems.

The AD8531, AD8532 and AD8534 are specified over the

extended industrial (–40°C to +85°C) temperature range. The

AD8531 is available in SO-8 and SOT-23-5 packages. The
AD8532 is available in 8-lead plastic DIP, SO-8, 8-lead MSOP
and 8-lead TSSOP surface-mount packages. The AD8534 is
available in 14-lead plastic DIP, narrow SO-14 and 14-lead
TSSOP surface-mount packages. All TSSOP and SOT versions
are available in tape and reel only.

REV. B

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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] World Wide Web Site: http://www.analog.com
Fax: [phone] © Analog Devices, Inc., 1999

PIN CONFIGURATIONS

1

8

V+

AD8532

4

OUT B
–IN B

5

+IN B

5-Lead SOT

(RT Suffix)

1

OUT A

2

V–

+IN A –IN A

34

AD8531

8-Lead Epoxy DIP

(N Suffix)

OUT A

–IN A

+IN A

V–

AD8532

1

2

3

4

8-Lead MSOP

(RM Suffix)

OUT A

–IN A
+IN A

1

AD8532

4

V–

14-Lead

Narrow-Body SO

(R Suffix)

OUT A

2

–IN A
+IN A

+IN B
–IN B

OUT B

AD8534

3

AD8534

V+

4
5
6
7

14-Lead TSSOP

(RU Suffix)

1

AD8532

V+

1

AD8534

78

78

OUT A

–IN A
+IN A

+IN B
–IN B

OUT B

5

V+

8

V+

7

OUT B

6

–IN B

5

+IN B

8

V+
OUT B
–IN B

5

+IN B

14

OUT D1

13

–IN D

12

+IN D
V–

11
10

+IN C
–IN C

9
8

OUT C

OUT D

14

14

–IN D
+IN D

V–
+IN C
–IN C
OUT C

AD8531/AD8532/AD8534–SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

(@ VS = +3.0 V, VCM = 1.5 V, TA = +25ⴗC unless otherwise noted)

Parameter Symbol Conditions Min Typ Max Unit

INPUT CHARACTERISTICS

Offset Voltage V

Input Bias Current I

Input Offset Current I

B

OS

OS

–40°C ≤ T
–40°C ≤ T
–40°C ≤ T

≤ +85°C30mV

A

550 pA

≤ +85°C60pA

A

125 pA

≤ +85°C30pA

A

25 mV

Input Voltage Range 0 3 V
Common-Mode Rejection Ratio CMRR V
Large Signal Voltage Gain A

Offset Voltage Drift ∆V
Bias Current Drift ∆I

VO

/∆T20µV/°C

OS

/∆T 50 fA/°C

B

= 0 V to 3 V 38 45 dB

CM

R

= 2 kΩ, V

L

= 0.5 V to 2.5 V 25 V/mV

O

Offset Current Drift ∆IOS/∆T 20 fA/°C

OUTPUT CHARACTERISTICS

Output Voltage High V

Output Voltage Low V

Output Current I
Closed-Loop Output Impedance Z

OH

OL

OUT

OUT

IL = 10 mA 2.85 2.92 V

–40°C ≤ T

≤ +85°C 2.8 V

A

IL = 10 mA 60 100 mV

–40°C ≤ T

≤ +85°C 125 mV

A

±250 mA

f = 1 MHz, A

= 1 60 Ω

V

POWER SUPPLY

Power Supply Rejection Ratio PSRR V
Supply Current/Amplifier I

SY

= 3 V to 6 V 45 55 dB

S

VO = 0 V 0.70 1 mA

–40°C ≤ TA ≤ +85°C1.25mA

DYNAMIC PERFORMANCE

Slew Rate SR R
Settling Time t

S

= 2 kΩ 3.5 V/µs

L

To 0.01% 1.6 µs

Gain Bandwidth Product GBP 2.2 MHz

Phase Margin φo 70 Degrees

Channel Separation CS f = 1 kHz, R

= 2 kΩ 65 dB

L

NOISE PERFORMANCE

Voltage Noise Density e
Voltage Noise Density e
Current Noise Density i

Specifications subject to change without notice.

n
n

n

f = 1 kHz 45 nV/√Hz
f = 10 kHz 30 nV/√Hz
f = 1 kHz 0.05 pA/√Hz

REV. B–2–

AD8531/AD8532/AD8534

ELECTRICAL CHARACTERISTICS

(@ VS = +5.0 V, VCM = 2.5 V, TA = +25ⴗC unless otherwise noted)

Parameter Symbol Conditions Min Typ Max Unit

INPUT CHARACTERISTICS

Offset Voltage V

Input Bias Current I

Input Offset Current I

B

OS

OS

–40°C ≤ T
–40°C ≤ T
–40°C ≤ T

≤ +85°C30mV

A

550 pA

≤ +85°C60pA

A

125 pA

≤ +85°C30pA

A

25 mV

Input Voltage Range 0 5 V
Common-Mode Rejection Ratio CMRR V
Large Signal Voltage Gain A

Offset Voltage Drift ∆V
Bias Current Drift ∆I

VO

/∆T –40°C ≤ TA ≤ +85°C20µV/°C

OS

/∆T 50 fA/°C

B

= 0 V to 5 V 38 47 dB

CM

R

= 2 kΩ, V

L

= 0.5 V to 4.5 V 15 80 V/mV

O

Offset Current Drift ∆IOS/∆T 20 fA/°C

OUTPUT CHARACTERISTICS

Output Voltage High V

Output Voltage Low V

Output Current I
Closed-Loop Output Impedance Z

OH

OL

OUT

OUT

IL = 10 mA 4.9 4.94 V

–40°C ≤ T

≤ +85°C 4.85 V

A

IL = 10 mA 50 100 mV

–40°C ≤ T

≤ +85°C 125 mV

A

±250 mA

f = 1 MHz, A

= 1 40 Ω

V

POWER SUPPLY

Power Supply Rejection Ratio PSRR V
Supply Current/Amplifier I

SY

= 3 V to 6 V 45 55 dB

S

VO = 0 V 0.75 1.25 mA

–40°C ≤ TA ≤ +85°C1.75mA

DYNAMIC PERFORMANCE

Slew Rate SR R
Full-Power Bandwidth BW
Settling Time t

p

S

= 2 kΩ 5V/µs

L

1% Distortion 350 kHz

To 0.01% 1.4 µs

Gain Bandwidth Product GBP 3 MHz

Phase Margin φo 70 Degrees

Channel Separation CS f = 1 kHz, R

= 2 kΩ 65 dB

L

NOISE PERFORMANCE

Voltage Noise Density e
Voltage Noise Density e
Current Noise Density i

Specifications subject to change without notice.

n
n

n

f = 1 kHz 45 nV/√Hz
f = 10 kHz 30 nV/√Hz
f = 1 kHz 0.05 pA/√Hz

REV. B

–3–

AD8531/AD8532/AD8534

WARNING!

ESD SENSITIVE DEVICE

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V

Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND to V

Differential Input Voltage

2

. . . . . . . . . . . . . . . . . . . . . . . ±6 V

Storage Temperature Range

N, R, RM, RT, RU Package . . . . . . . . . . –65°C to +150°C

Operating Temperature Range

AD8531/AD8532/AD8534 . . . . . . . . . . . . –40°C to +85°C

Junction Temperature Range

N, R, RM, RT, RU Package . . . . . . . . . . –65°C to +150°C

Lead Temperature Range (Soldering, 60 sec) . . . . . . . +300°C

NOTES

1

Stresses above those listed under Absolute Maximum Ratings may cause perma-

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

2

For supplies less than +6 volts, the differential input voltage is equal to ±V

1

Package Type ␪

S

PACKAGE INFORMATION

1

JA

␪

JC

Units

5-Lead SOT-23 (RT) 230 °C/W
8-Lead SOIC (R) 158 43 °C/W
8-Lead MSOP (RM) 210 45 °C/W
8-Lead TSSOP (RU) 240 43 °C/W
8-Lead Plastic DIP (N) 103 43 °C/W
14-Lead Plastic DIP (N) 83 39 °C/W
14-Lead SOIC (R) 120 36 °C/W
14-Lead TSSOP (RU) 240 43 °C/W

NOTE

1

θJA is specified for the worst case conditions, i.e., θ

for P-DIP packages; θ
surface-mount packages.

.

S

is specified for device soldered onto a circuit board for

JA

is specified for device in socket

JA

ORDERING GUIDE

Model Temperature Range Package Description Package Option Brand

AD8531AR –40°C to +85°C 8-Lead SOIC SO-8
AD8531ART* –40°C to +85°C 5-Lead SOT-23 RT-5 A7A

AD8532AR –40°C to +85°C 8-Lead SOIC SO-8
AD8532ARM* –40°C to +85°C 8-Lead MSOP RM-8 ARA
AD8532AN –40°C to +85°C 8-Lead Plastic DIP N-8
AD8532ARU* –40°C to +85°C 8-Lead TSSOP RU-8

AD8534AR –40°C to +85°C 14-Lead SOIC SO-14
AD8534AN –40°C to +85°C 14-Lead Plastic DIP N-14
AD8534ARU* –40°C to +85°C 14-Lead TSSOP RU-14

*Available in reels only.

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 the AD8531/AD8532/AD8534 feature proprietary ESD protection circuitry, perm anent
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.

2.5

–V

OL

2

+V

OH

1.5

OUT

6V

1

0.5

0

0 20 40 60 80 100 120 140 160 180 200

R

LOAD –

V

Figure 1. Output Voltage vs. Load. VS = ±2.5 V, RL Is Connected to GND (0 V)

–4–

REV. B

Typical Performance Characteristics–AD8531/AD8532/AD8534

TEMPERATURE – 8C

–35 –15 5 25 45 65

85

INPUT OFFSET VOLTAGE – mV

–5

–2

–3

–6

–8

–4

–7

VS = +5V
V

CM

= +2.5V

TEMPERATURE – 8C

–35 –15 5 25 45 65 85

INPUT OFFSET CURRENT – pA

3

2

0

4

1

–1
–2

5

6

VS = +5V, +3V
V

CM

= VS/2

FREQUENCY – Hz

1k 10k 100k 1M 10M 100M

VS = +2.7V
R

L

= NO LOAD

T

A

= +258C
80
60
40
200GAIN – dB

45
90
135
180

PHASE SHIFT – Degrees

VS = +2.7V

= +1.35V

V

500

400

300

200

QUANTITY – Amplifiers

100

–12

–10 –8 –6 –4 –2 0 2 4

INPUT OFFSET VOLTAGE – mV

CM

T

A

= +258C

Figure 2. Input Offset Voltage
Distribution

VS = +5V, +3V

8

V

= VS/2

CM

7

6

5

4

3

INPUT BIAS CURRENT – pA

2

–35 –15 5 25 45 65

TEMPERATURE – 8C

Figure 5. Input Bias Current vs.
Temperature

VS = +5V

= +2.5V

V

500

400

300

200

QUANTITY – Amplifiers

100

–12

–10 –8 –6 –4 –2 0 2 4

INPUT OFFSET VOLTAGE – mV

Figure 3. Input Offset Voltage
Distribution

VS = +5V

= +258C

T

A

8
7
6
5
4
3
2

INPUT BIAS CURRENT – pA

1

85

012345

COMMON-MODE VOLTAGE – Volts

Figure 6. Input Bias Current vs.
Common-Mode Voltage

CM

T

A

= +258C

Figure 4. Input Offset Voltage
vs. Temperature

Figure 7. Input Offset Current vs.
Temperature

1000

VS = +2.7V
T

= +258C

A

100

SOURCE

10

1

DOUTPUT VOLTAGE – mV

0.1

0.01 0.1 10001 10 100
LOAD CURRENT – mA

Figure 8. Output Voltage to Supply
Rail vs. Load Current

REV. B

10000

VS = +5V
T

= +258C

A

1000

SINK

100

10

DOUTPUT VOLTAGE – mV

1

0.01

0.01 0.1 10001 10 100

Figure 9. Output Voltage to Supply
Rail vs. Load Current

SOURCE

SINK

LOAD CURRENT – mA

Figure 10. Open-Loop Gain & Phase
vs. Frequency

–5–