Analog Devices AD8026 Datasheet

Quad High Speed

R

F

R

G

R

G

R

F

V

EE

V

CC

AD8026

R

F

R

P

R

P

OUT A

–IN A

+IN A

+IN B

–IN B

OUT B

OUT D

–IN D

+IN D

+IN C

–IN C

OUT C

R

F

R

G

R

P

R

P

R

G

a

FEATURES
Voltage Feedback, Rail-to-Rail Output
Rated Settling Time to Within 0.5 V of Supply Rail
Quad High Speed Amplifier

Settling Time to 0.1% of 55 ns (4 V Swing, C
Slew Rate 135 V/ms (4 V Swing)

–3 dB Bandwidth 60 MHz

Fixed Gain Resistors for High DC Accuracy

Low Voltage Offset 0.5 mV RTO Typical
Gain Error Less than 0.05%
Low Supply Current 3.4 mA
Nominal +12 V Supply
14-Lead SOIC Package

APPLICATIONS
LCD Source Drivers
CD DVD
CDR

PRODUCT DESCRIPTION

The AD8026 is a complete low cost, closed loop, voltage feed­back, quad amplifier. Precision trimmed resistors set a fixed R

ratio of 5/3 to a typical gain accuracy of 0.02%. Manufac-

R

G

tured on ADI’s proprietary XFCB high speed bipolar process,
which enables the output drivers to settle to within 0.1% within
55 ns into a 100 pF load (4 V swing) and drive output voltages
to rated settling time to within 0.5 V from the rail. The typical
3 dB bandwidth is 60 MHz, at G = +2.67. The AD8026 is
laser trimmed to produce both exceptional offset and gain
performance.

The low settling time, high slew rate, low offset and rail-to-rail
output voltage drive capability makes the AD8026 ideal for
driving LCD displays.

The AD8026 is available in a 14-lead SOIC package.

= 100 pF)

L

/

F

FUNCTIONAL BLOCK DIAGRAM

RL = 10kV

50ns/DIV

1V/DIV

1V/DIV

INPUT

OUTPUT

VIN = 1.5V

V

= 4V

OUT

Figure 1. 4 V Step Response

Amplifier

AD8026

REV. 0

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., 1998

(@ +258C, VS = 66 V, RI = 500 V, RL = 10 kV, RF = 5K, RG = 3K Noninverting

AD8026–SPECIFICATIONS

Configuration, T

= 08C, T

MIN

= +708C, unless otherwise noted.)

MAX

Parameter Conditions Min Typ Max Units

DYNAMIC PERFORMANCE

–3 dB Small Signal Bandwidth V

Bandwidth for 0.1 dB Flatness V

Slew Rate V
Full Power Response V
Settling Time to 0.1% V

= 50 mV rms

IN

= 1 kΩ 20 60 MHz

R

L

= 50 mV rms

IN

= 1 kΩ 12 MHz

R

L

= 4 V Step 135 V/µs

O

= 2 V p-p 10 MHz

O

= 4 V Step, CL = 100 pF,

O

R

= 50 Ω 55 ns

S

NOISE/DISTORTION PERFORMANCE

Total Harmonic Distortion f

Voltage Noise (RTO)

1

Crosstalk, Output to Output f = 5 MHz, V

Differential Gain Error NTSC R
Differential Phase Error NTSC R

DC PERFORMANCE

RTO Offset Voltage

2

= 5 MHz, VO = 2 V p-p,

C

= 1 kΩ –60 dBc

R

L

f = 10 kHz 67 nV/√Hz

= 2 V p-p,

= 1 kΩ –80 dB

R

L

O

= 1 kΩ 0.02 %

L

= 1 kΩ 0.02 Degrees

L

VIN = 0 V 0.5 5.5 mV

to T

T

MIN

MAX

6mV

RTO Offset Drift 10 µV/°C
+Input Bias Current 0.6 1.6 µA

Closed-Loop Gain Error

Gain Matching Channel-to-Channel, R

3

R

= 10 kΩ, –2.67 < V

L

to T

T

MIN

MAX

< +2.67 –0.02 0.05 %

O

0.05 %

= 10 kΩ 0.03 %

L

INPUT CHARACTERISTICS

+Input Resistance 170 kΩ

+Input Capacitance 2.5 pF

OUTPUT CHARACTERISTICS

Output Voltage Swing R

= 10 kΩ, V

L

– VOH, VEE + V

CC

OL

0.2 0.25 V

Short Circuit Output Current 175 mA

POWER SUPPLY

Operating Range

4

13 V
Quiescent Current/Amp 3.2 3.4 mA/Amp
Power Supply Rejection Ratio (RTO) +V

= 5.5 V to 6.5 V, –VS = –6 V 48 60 dB

S

–VS = –5.5 V to –6.5 V, +VS = 6 V 48 65 dB

OPERATING TEMPERATURE RANGE 0 +70 °C

NOTES

1

Includes gain resistor thermal noise.

2

RTO offset includes effects of input voltage offset, input current, and input offset current.

3

Measured in the inverting mode.

4

Observe Absolute Maximum Ratings.

Specifications subject to change without notice.

–2– REV. 0

AD8026

AMBIENT TEMPERATURE – 8C

1.5

1.0

0.5
–10 800

MAXIMUM POWER DISSIPATION – Watts

10 20 30 40 50 60 70

TJ = +1508C

WARNING!

ESD SENSITIVE DEVICE

ABSOLUTE MAXIMUM RATINGS

Supply␣ Voltage VCC–VEE . . . . . . . . . . . . . . . . . . . . . . . 14.0␣ V

Internal␣ Power␣ Dissipation

␣␣

Small␣ Outline␣ Package (R) . . . . . . . . . . . . . . . . . . . . 0.9␣ W

+Input Voltage V

CC–VIN

2

+ . . . . . . . . . . . . . . . . . . . . . . < 12 V

–Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . < V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > V

1

+ 12 V

EE

– 12 V

EE

Output Short Circuit Duration

␣ ␣ . . . . . . . . . . . . . . . . . . . . Observe Power Derating Curves

Storage Temperature Range . . . . . . . . . . . . –65°C to +125°C

Operating Temperature Range (A Grade) . . . . 0°C to +70°C

Lead Temperature Range (Soldering 10 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; 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

Specification is for device in free air:

14-Lead SOIC Package: θJA = 120°C/W, where P

= (TJ – T

D

)/θ

.

A

JA

ORDERING GUIDE

Temperature Package Package

Model Range Description Option

AD8026AR 0°C to +70°C 14-Lead Plastic SOIC SO-14
AD8026AR-REEL 0°C to +70°C REEL SOIC SO-14
AD8026AR-REEL7 0°C to +70°C REEL 7 SOIC SO-14

MAXIMUM POWER DISSIPATION

The maximum power that can be safely dissipated by the
AD8026 is limited by the associated rise in junction tempera­ture. The maximum safe junction temperature for plastic
encapsulated devices is determined by the glass transition tem-

perature of the plastic, approximately +150°C. Exceeding this

limit temporarily may cause a shift in parametric performance
due to a change in the stresses exerted on the die by the package.

Exceeding a junction temperature of +175°C for an extended

period can result in device failure.

While the AD8026 is internally short circuit protected, this
may not be sufficient to guarantee that the maximum junction

temperature (+150°C) is not exceeded under all conditions. To

ensure proper operation, it is necessary to observe the maximum
power derating curves.

PIN CONFIGURATION

OUT A

–IN A
+IN A

V
+IN B
–IN B

OUT B

CC

1

2

3

AD8026

4

TOP VIEW

(Not to Scale)

5

6

7

14

13

12

11

10

9

8

OUT D
–IN D
+IN D
V

EE

+IN C
–IN C
OUT C

Figure 2. Maximum Power Dissipation vs. Temperature

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 AD8026 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.

–3–REV. 0