Analog Devices AD524SE-883B, AD524SD-883B, AD524SD, AD524SCHIPS, AD524CD Datasheet

Precision

AD524

20kV

–INPUT

G = 10

+INPUT

G = 100

G = 1000

RG

2

RG

1

4.44kV

404V

40V

PROTECTION

20kV

20kV

20kV

20kV

20kV

SENSE

REFERENCE

V

b

V

OUT

PROTECTION

a

FEATURES
Low Noise: 0.3 ␮V p-p 0.1 Hz to 10 Hz
Low Nonlinearity: 0.003% (G = 1)
High CMRR: 120 dB (G = 1000)
Low Offset Voltage: 50 ␮V
Low Offset Voltage Drift: 0.5 ␮V/ⴗC
Gain Bandwidth Product: 25 MHz
Pin Programmable Gains of 1, 10, 100, 1000
Input Protection, Power On–Power Off
No External Components Required
Internally Compensated
MIL-STD-883B and Chips Available
16-Lead Ceramic DIP and SOIC Packages and
20-Terminal Leadless Chip Carriers Available
Available in Tape and Reel in Accordance
with EIA-481A Standard
Standard Military Drawing Also Available

PRODUCT DESCRIPTION

The AD524 is a precision monolithic instrumentation amplifier
designed for data acquisition applications requiring high accu­racy under worst-case operating conditions. An outstanding
combination of high linearity, high common mode rejection, low
offset voltage drift and low noise makes the AD524 suitable for
use in many data acquisition systems.

The AD524 has an output offset voltage drift of less than 25 µV/°C,
input offset voltage drift of less than 0.5 µV/°C, CMR above

90 dB at unity gain (120 dB at G = 1000) and maximum non­linearity of 0.003% at G = 1. In addition to the outstanding dc
specifications, the AD524 also has a 25 kHz gain bandwidth
product (G = 1000). To make it suitable for high speed data
acquisition systems the AD524 has an output slew rate of 5 V/µs
and settles in 15 µs to 0.01% for gains of 1 to 100.

As a complete amplifier the AD524 does not require any exter­nal components for fixed gains of 1, 10, 100 and 1000. For
other gain settings between 1 and 1000 only a single resistor is
required. The AD524 input is fully protected for both power-on
and power-off fault conditions.

The AD524 IC instrumentation amplifier is available in four
different versions of accuracy and operating temperature range.
The economical “A” grade, the low drift “B” grade and lower

drift, higher linearity “C” grade are specified from –25°C to
+85°C. The “S” grade guarantees performance to specification
over the extended temperature range –55°C to +125°C. Devices

are available in 16-lead ceramic DIP and SOIC packages and a
20-terminal leadless chip carrier.

Instrumentation Amplifier

AD524

FUNCTIONAL BLOCK DIAGRAM

PRODUCT HIGHLIGHTS

1. The AD524 has guaranteed low offset voltage, offset voltage
drift and low noise for precision high gain applications.

2. The AD524 is functionally complete with pin programmable
gains of 1, 10, 100 and 1000, and single resistor program­mable for any gain.

3. Input and output offset nulling terminals are provided for
very high precision applications and to minimize offset volt­age changes in gain ranging applications.

4. The AD524 is input protected for both power-on and power­off fault conditions.

5. The AD524 offers superior dynamic performance with a gain
bandwidth product of 25 MHz, full power response of 75 kHz
and a settling time of 15 µs to 0.01% of a 20 V step (G = 100).

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
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

AD524–SPECIFICATIONS

(@ VS = ⴞ15 V, RL = 2 k⍀ and TA = +25ⴗC unless otherwise noted)

Model Min Typ Max Min Typ Max Min Typ Max Min Typ Max Units

GAIN

Gain Equation

(External Resistor Gain

Programming)

Gain Range (Pin Programmable) 1 to 1000 1 to 1000 1 to 1000 1 to 1000
Gain Error

Nonlinearity

Gain vs. Temperature

VOLTAGE OFFSET (May be Nulled)

Input Offset Voltage 250 100 50 100 µV

Output Offset Voltage 5 3 2.0 3.0 mV

Offset Referred to the

INPUT CURRENT

Input Bias Current ⴞ50 ⴞ25 ⴞ15 ⴞ50 nA

Input Offset Current ⴞ35 ⴞ15 ⴞ10 ⴞ35 nA

INPUT

Input Impedance

Input Voltage Range

Common-Mode Rejection dc to
60 Hz with 1 kΩ Source Imbalance

OUTPUT RATING

V

DYNAMIC RESPONSE

Small Signal – 3 dB

Slew Rate 5.0 5.0 5.0 5.0 V/µs
Settling Time to 0.01%, 20 V Step

NOISE

Voltage Noise, 1 kHz

R.T.I., 0.1 Hz to 10 Hz

Current Noise

1

G = 1 ⴞ0.05 ⴞ0.03 ⴞ0.02 ⴞ0.05 %
G = 10 ⴞ0.25 ⴞ0.15 ⴞ0.1 ⴞ0.25 %
G = 100 ⴞ0.5 ⴞ0.35 ⴞ0.25 ⴞ0.5 %
G = 1000

G = 1 ±0.01 ±0.005 ±0.003 ±0.01 %
G = 10,100 ±0.01 ±0.005 ±0.003 ±0.01 %
G = 1000 ±0.01 ±0.01 ±0.01 ±0.01 %

G = 1 5555ppm/°C
G = 10 15 10 10 10 ppm/°C
G = 100 35 25 25 25 ppm/°C
G = 1000 100 50 50 50 ppm/°C

vs. Temperature 2 0.75 0.5 2.0 µV/°C
vs. Temperature 100 50 25 50 µV/°C

Input vs. Supply

G = 1 70 75 80 75 dB
G = 10 85 95 100 95 dB
G = 100 95 105 110 105 dB
G = 1000 100 110 115 110 dB

vs. Temperature ±100 ±100 ±100 ±100 pA/°C
vs. Temperature ±100 ±100 ±100 ± 100 pA/°C

Differential Resistance 10
Differential Capacitance 10 10 10 10 pF
Common-Mode Resistance 10
Common-Mode Capacitance 10 10 10 10 pF

2

Max Differ. Input Linear (V

Max Common-Mode Linear (V

G = 1 70 75 80 70 dB
G = 10 90 95 100 90 dB
G = 100 100 105 110 100 dB
G = 1000 110 115 120 110 dB

, R

= 2 kΩ±10 ±10 ±10 ±10 V

OUT

L

G = 1 1111MHz
G = 10 400 400 400 400 kHz
G = 100 150 150 150 150 kHz
G = 1000 25 25 25 25 kHz

G = 1 to 100 15 15 15 15 µs
G = 1000 75 75 75 75 µs

R.T.I. 7777nV/√Hz
R.T.O. 90 90 90 90 nV√Hz

G = 1 15151515µV p-p
G = 10 2222µV p-p
G = 100, 1000 0.3 0.3 0.3 0.3 µV p-p

0.1 Hz to 10 Hz 60 60 60 60 pA p-p

)

DL

)

CM

AD524A AD524B AD524C AD524S



40, 000






R



+ 1

± 20%






G

±

9

9

±10 ±10 ±10 ±10 V

12 V –



G

× V



D

2





40, 000



R





2.0 ⴞ1.0 ⴞ0.5 ⴞ2.0 %






12 V –



+ 1

± 20%






G

9

10

9

10








G

× V



D

2





40, 000






12 V –



+ 1

± 20%

R






G

9

10

9

10








G

× V



D

2





40, 000






R

G

12 V –

10

10



+ 1

± 20%






9

9








G

× V



D

2



Ω
Ω

V

–2–

REV. E

AD524

Model Min Typ Max Min Typ Max Min Typ Max Min Typ Max Units

AD524A AD524B AD524C AD524S

SENSE INPUT

R

IN

I

IN

Voltage Range ±10 ±10 ±10 ±10 V
Gain to Output l l 1 l %

REFERENCE INPUT

R

IN

I

IN

Voltage Range ±10 ±10 10 10 V
Gain to Output l 1 l 1 %

20 20 20 20 kΩ ±20%
15 15 15 15 µA

40 40 40 40 kΩ ±20%
15 15 15 15 µA

TEMPERATURE RANGE

Specified Performance –25 +85 –25 +85 –25 +85 –55 +125 °C
Storage –65 +150 –65 +150 –65 +150 –65 +150 °C

POWER SUPPLY

Power Supply Range ⴞ6 ±15 ⴞ18 ⴞ6 ±15 ⴞ18 ⴞ6 ±15 ⴞ18 ⴞ6 ±15 ⴞ18 V
Quiescent Current 3.5 5.0 3.5 5.0 3.5 5.0 3.5 5.0 mA

NOTES

1

Does not include effects of external resistor RG.

2

VOL is the maximum differential input voltage at G = 1 for specified nonlinearity.

at the maximum = 10 V/G.

V

DL

= Actual differential input voltage.

V

D

Example: G = 10, V

= 12 V – (10/2 × 0.50 V) = 9.5 V.

V

CM

Specification subject to change without notice.
All min and max specifications are guaranteed. Specifications shown in boldface are tested on all production units at final electrical test. Results from those tests are used to
calculate outgoing quality levels.

= 0.50.

D

REV. E –3–

AD524

TOP VIEW

4
5
6
7
8

14

15

16

17

18

1232019

9 10111213

RG

2

INPUT NULL

NC

INPUT NULL

REFERENCE

+INPUT

–INPUTNCRG

1

OUTPUT

–V

S+VS

NC

SENSE

OUTPUT NULL

G = 100

G = 10

SHORT TO
RG

2

FOR

DESIRED
GAIN

OUTPUT

NULL

NC

G = 1000

AD524

NC = NO CONNECT

719

518

–V

S

+V

S

OUTPUT
OFFSET NULL

INPUT

OFFSET NULL

WARNING!

ESD SENSITIVE DEVICE

ABSOLUTE MAXIMUM RATINGS

l

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V

Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . 450 mW

Input Voltage

2

(Either Input Simultaneously) |VIN| + |VS| . . . . . . . . <36 V

Output Short Circuit Duration . . . . . . . . . . . . . . . . . Indefinite

Storage Temperature Range

(R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +125°C

(D, E) . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C

Operating Temperature Range

AD524A/B/C . . . . . . . . . . . . . . . . . . . . . . . . –25°C to +85°C

AD524S . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to +125°C

Lead Temperature (Soldering 60 secs) . . . . . . . . . . . . +300°C

NOTES

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 indicated in the operational section of this
specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.

2

Max input voltage specification refers to maximum voltage to which either input
terminal may be raised with or without device power applied. For example, with ±18

volt supplies max V

is ±18 volts, with zero supply voltage max VIN is ±36 volts.

IN

METALIZATION PHOTOGRAPH

Contact factory for latest dimensions.

Dimensions shown in inches and (mm).

OUTPUT

NULL

RG

–INPUT
+INPUT

RG

OUTPUT

NULL

14 13

15

16

1

1
2

3

2

PAD NUMBERS CORRESPOND TO PIN NUMBERS FOR THE

G = 100 G = 1000 SENSE

G = 10

4

INPUT

INPUT

NULL

NULL

D-16 AND R-16 16-PIN CERAMIC PACKAGES.

11 10

12

5

0.170 (4.33)

REFERENCE

OUTPUT

9
8

+V

S

0.103
(2.61)

–V

7

S

6

CONNECTION DIAGRAMS

Ceramic (D) and

SOIC (R) Packages

415

514

16

RG

15

OUTPUT NULL

14

OUTPUT NULL

13

G = 10

12

G = 100

11

G = 1000

10

SENSE

9

OUTPUT

–V

OUTPUT
OFFSET NULL

– INPUT

+ INPUT

RG
INPUT NULL
INPUT NULL

REFERENCE

–V
+V

+V

INPUT

OFFSET NULL

2

S
S

S

1

2

3

AD524

4

TOP VIEW

5

(Not to Scale)

6

7

8

Leadless Chip Carrier

1

SHORT TO
RG

FOR

2

DESIRED
GAIN

S

ORDERING GUIDE

Model Temperature Ranges Package Descriptions Package Options

AD524AD –40°C to +85°C 16-Lead Ceramic DIP D-16
AD524AE –40°C to +85°C 20-Terminal Leadless Chip Carrier E-20A
AD524AR-16 –40°C to +85°C 16-Lead Gull-Wing SOIC R-16
AD524AR-16-REEL –40°C to +85°C Tape & Reel Packaging 13"
AD524AR-16-REEL7 –40°C to +85°C Tape & Reel Packaging 7"
AD524BD –40°C to +85°C 16-Lead Ceramic DIP D-16
AD524BE –40°C to +85°C 20-Terminal Leadless Chip Carrier E-20A
AD524CD –40°C to +85°C 16-Lead Ceramic DIP D-16
AD524SD –55°C to +125°C 16-Lead Ceramic DIP D-16
AD524SD/883B –55°C to +125°C 16-Lead Ceramic DIP D-16
5962-8853901EA* –55°C to +125°C 16-Lead Ceramic DIP D-16
AD524SE/883B –55°C to +125°C 20-Terminal Leadless Chip Carrier E-20A
AD524SCHIPS –55°C to +125°C Die

*

Refer to official DESC drawing for tested specifications.

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 AD524 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.

REV. E–4–

LOAD RESISTANCE – V

OUTPUT VOLTAGE SWING – V

p-p

30

20

0

10 100 10k

1k

10

AD524–Typical Characteristics

20

15

10

+258C

INPUT VOLTAGE – 6V

5

0

05 20

SUPPLY VOLTAGE – 6V

10 15

Figure 1. Input Voltage Range vs.
Supply Voltage, G = 1

8.0

6.0

4.0

2.0

QUIESCENT CURRENT – mA

0

05 2010 15

SUPPLY VOLTAGE – 6V

Figure 4. Quiescent Current vs.
Supply Voltage

20

15

10

5

OUTPUT VOLTAGE SWING – 6V

0

05 2010 15

SUPPLY VOLTAGE – 6V

Figure 2. Output Voltage Swing vs.
Supply Voltage

16

14

12

10

8

6

4

2

INPUT BIAS CURRENT – 6nA

0

05 20

SUPPLY VOLTAGE – 6V

10 15

Figure 5. Input Bias Current vs.
Supply Voltage

Figure 3. Output Voltage Swing vs.
Load Resistance

40

30

20

10

0

–10

–20

INPUT BIAS CURRENT – nA

–30

–40

–75 125

–25 25 75

TEMPERATURE – 8C

Figure 6. Input Bias Current vs.
Temperature

16

14

12

10

8

6

4

INPUT BIAS CURRENT – 6nA

2

0

05 2010 15

INPUT VOLTAGE – 6V

Figure 7. Input Bias Current vs. Input
Voltage

0

1

2

3

4

5

FROM FINAL VALUE – mV

OS

6

DV

0 1.0 8.02.0 3.0 4.0 5.0 6.0 7.0

WARM-UP TIME – Minutes

Figure 8. Offset Voltage, RTI, Turn
On Drift

1000

100

10

GAIN – V/V

1

0 10 10M100 1k 10k 100k 1M

FREQUENCY – Hz

Figure 9. Gain vs. Frequency

REV. E

–5–