Analog Devices AD818AR-REEL, AD818AR, AD818AN, AD818AR-REEL7 Datasheet

Low Cost, Low Power

Ω

a

FEATURES
Low Cost
Excellent Video Performance

55 MHz 0.1 dB Bandwidth (Gain = +2)

0.01% & 0.05ⴗ Differential Gain & Phase Errors

High Speed

130 MHz Bandwidth (3 dB, G = +2)
100 MHz Bandwidth (3 dB, G+ = –1)
500 V/␮s Slew Rate
80 ns Settling Time to 0.01% (V

High Output Drive Capability

50 mA Minimum Output Current
Ideal for Driving Back Terminated Cables

Flexible Power Supply

Specified for Single (+5 V) and Dual (ⴞ5 V to ⴞ15 V)
Power Supplies
Low Power: 7.5 mA max Supply Current

Available in 8-Lead SOIC and 8-Lead Plastic Mini-DIP

PRODUCT DESCRIPTION

The AD818 is a low cost, video op amp optimized for use in
video applications which require gains equal to or greater than
+2 or –1. The AD818 low differential gain and phase errors,
single supply functionality, low power and high output drive
make it ideal for cable driving applications such as video cam­eras and professional video equipment.

With video specs like 0.1 dB flatness to 55 MHz and low differ­ential gain and phase errors of 0.01% and 0.05°, along with
50 mA of output current, the AD818 is an excellent choice for
any video application. The 130 MHz 3 dB bandwidth (G = +2)

+15V

0.01µF

V

IN

3

AD818

2

7

6

4

0.1µF

O

2.2µF

2.2µF

= 10 V Step)

Rbt

75

75

Ω

Ω

Rt
75

Video Op Amp

AD818

CONNECTION DIAGRAMS

8-Lead Plastic Mini-DIP (N), and

SOIC (R) Packages

NULL

NULL

1

AD818

–IN

2

+IN

3

–V

4

S

TOP VIEW

NC = NO CONNECT

and 500 V/µs slew rate make the AD818 useful in many high
speed applications including: video monitors, CATV, color
copiers, image scanners and fax machines.

The AD818 is fully specified for operation with a single +5 V
power supply and with dual supplies from ±5 V to ±15 V. This
power supply flexibility, coupled with a very low supply current
of 7.5 mA and excellent ac characteristics under all power
supply conditions, make the AD818 the ideal choice for many
demanding yet power sensitive applications.

The AD818 is a voltage feedback op amp and excels as a gain
stage in high speed and video systems (gain = >2 or –1). It
achieves a settling time of 45 ns to 0.1%, with a low input offset
voltage of 2 mV max.

The AD818 is available in low cost, small 8-lead plastic mini­DIP and SOIC packages.

0.06

0.05

DIFF PHASE

8

+V

7

S

OUTPUT

6

5

NC

DIFF GAIN

0.02

0.01

0.00

DIFFERENTIAL GAIN – Percent

1k

Ω

–15V

1k

Ω

AD818 Video Line Driver

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.

0.04

0.03

DIFFERENTIAL PHASE – Degrees

510

SUPPLY VOLTAGE – ±Volts

15

AD818 Differential Gain and Phase vs. Supply

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., 2000

AD818–SPECIFICATIONS

(@ TA = +25ⴗC, unless otherwise noted)

Parameter Conditions V

S

Min Typ Max Units

DYNAMIC PERFORMANCE

–3 dB Bandwidth Gain = +2 ±5 V 70 95 MHz

±15 V 100 130 MHz
0, +5 V 40 55 MHz

Gain = –1 ±5 V 50 70 MHz

±15 V 70 100 MHz
0, +5 V 30 50 MHz

Bandwidth for 0.1 dB Flatness Gain = +2 ±5 V 20 43 MHz

AD818A

= 2 pF ± 15 V 40 55 MHz

C

C

0, +5 V 10 18 MHz

Gain = –1 ±5 V 18 34 MHz

= 2 pF ± 15 V 40 72 MHz

C

Full Power Bandwidth

1

Slew Rate R

C

V

= 5 V p-p

OUT

= 500 Ω±5 V 25.5 MHz

R

LOAD

V

= 20 V p-p

OUT

= 1 kΩ±15 V 8.0 MHz

R

LOAD

= 1 kΩ±5 V 350 400 V/µs

LOAD

0, +5 V 10 19 MHz

Gain = –1 ±15 V 450 500 V/µs

0, +5 V 250 300 V/µs

Settling Time to 0.1% –2.5 V to +2.5 V ±5 V 45 ns

0 V–10 V Step, A

= –1 ±15 V 45 ns

V

to 0.01% –2.5 V to +2.5 V ±5 V 80 ns

0 V–10 V Step, A

= –1 ±15 V 80 ns

V

Total Harmonic Distortion FC = 1 MHz ±15 V 63 dB
Differential Gain Error NTSC ±15 V 0.005 0.01 %

= 150 Ω) Gain = +2 ±5 V 0.01 0.02 %

(R

L

0, +5 V 0.08 %

Differential Phase Error NTSC ± 15 V 0.045 0.09 Degrees

= 150 Ω) Gain = +2 ±5 V 0.06 0.09 Degrees

(R

L

0, +5 V 0.1 Degrees

Cap Load Drive 10 pF

INPUT OFFSET VOLTAGE ±5 V to ± 15 V 0.5 2 mV

T

MIN

to T

MAX

3mV

Offset Drift 10 µV/°C

INPUT BIAS CURRENT ±5 V, ± 15 V 3.3 6.6 nA

T
T

MIN

MAX

10 nA

4.4 nA/°C

INPUT OFFSET CURRENT ±5 V, ± 15 V 25 300 nA

to T

T

MIN

MAX

500 nA

Offset Current Drift 0.3 nA/°C

OPEN-LOOP GAIN V

= ±2.5 V ±5 V

OUT

= 500 Ω 3 5 V/mV

R

LOAD

to T

T
R
V
R
T
V
R

MIN

LOAD

OUT

LOAD

MIN

OUT

LOAD

MAX

= 150 Ω 2 4 V/mV

= ±10 V ±15 V

= 1 kΩ 6 9 V/mV

to T

MAX

= ±7.5 V ±15 V

= 150 Ω

2 V/mV

3 V/mV

(50 mA Output) 3 5 V/mV

COMMON-MODE REJECTION V

POWER SUPPLY REJECTION V

= ±2.5 V ± 5 V 82 100 dB

CM

= ±12 V ±15 V 86 120 dB

V

CM

T

to T

MIN

S

T

MIN

MAX

= ±5 V to ± 15 V 80 90 dB

to T

MAX

±15 V 84 100 dB

80 dB

INPUT VOLTAGE NOISE f = 10 kHz ± 5 V, ± 15 V 10 nV/√Hz

INPUT CURRENT NOISE f = 10 kHz ± 5 V, ±15 V 1.5 pA/√Hz

–2–

REV. B

AD818A

Parameter Conditions V

S

Min Typ Max Units

INPUT COMMON-MODE VOLTAGE
RANGE ±5 V +3.8 +4.3 V

–2.7 –3.4 V

±15 V +13 +14.3 V

–12 –13.4 V

0, +5 V +3.8 +4.3 V

+1.2 +0.9 V

AD818

OUTPUT VOLTAGE SWING R

= 500 Ω±5 V 3.3 3.8 ±V

LOAD

= 150 Ω±5 V 3.2 3.6 ±V

R

LOAD

R

= 1 kΩ±15 V 13.3 13.7 ± V

LOAD

= 500 Ω±15 V 12.8 13.4 ± V

R

LOAD

= 500 Ω 0, +5 V +1.5,

R

LOAD

+3.5 V

Output Current ±15 V 50 mA

±5 V 50 mA
0, +5 V 30 mA

Short-Circuit Current ±15 V 90 mA

INPUT RESISTANCE 300 kΩ

INPUT CAPACITANCE 1.5 pF

OUTPUT RESISTANCE Open Loop 8 Ω

POWER SUPPLY

Operating Range Dual Supply ±2.5 ± 18 V

Single Supply +5 +36 V

Quiescent Current ±5 V 7.0 7.5 mA

to T

T

MIN

MAX

±5 V 7.5 mA
±15 V 7.5 mA

T

to T

MIN

NOTE

1

Full power bandwidth = slew rate/2 π V

Specifications subject to change without notice.

ABSOLUTE MAXIMUM RATINGS

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

Internal Power Dissipation

2

PEAK

.

1

MAX

±15 V 7.0 7.5 mA

2.0

8-LEAD MINI-DIP PACKAGE

1.5

TJ = 150°C

Plastic (N) . . . . . . . . . . . . . . . . . . . . . . See Derating Curves

Small Outline (R) . . . . . . . . . . . . . . . . . See Derating Curves

Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . . ± V

S

1.0

Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . ±6 V

Output Short Circuit Duration . . . . . . . . See Derating Curves

Storage Temperature Range (N, R) . . . . . . . –65°C to +125°C

Operating Temperature Range . . . . . . . . . . . –40°C to +85°C

Lead Temperature Range (Soldering 10 seconds) . . . . +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

Specification is for device in free air: 8-lead plastic package, θJA = 90°C/W; 8-lead
SOIC package, θJA = 155°C/W.

ORDERING GUIDE

Temperature Package Package

Model Range Description Option

AD818AN –40°C to +85°C 8-Lead N-8

Plastic DIP

AD818AR –40°C to +85°C 8-Lead SO-8

Plastic SOIC

Maximum Power Dissipation vs. Temperature for Differ­ent Package Types

ESD SUSCEPTIBILITY

ESD (electrostatic discharge) sensitive device. Electrostatic
charges as high as 4000 volts, which readily accumulate on the
human body and on test equipment, can discharge without de­tection. Although the AD818 features proprietary ESD protec­tion circuitry, permanent damage may still occur on these
devices if they are subjected to high energy electrostatic dis­charges. Therefore, proper ESD precautions are recommended
to avoid any performance degradation or loss of functionality.

0.5

MAXIMUM POWER DISSIPATION – Watts

0

–50 +90

–30

AMBIENT TEMPERATURE – °C

8-LEAD SOIC PACKAGE

+50 +70+30+10–10

AD818AR-REEL –40°C to +85°C 13" Tape & Reel SO-8
AD818AR-REEL7 –40°C to +85°C 7" Tape & Reel SO-8

+80–40 +40 +60+200–20

REV. B

–3–

AD818

0

–Typical Characteristics

METALIZATION PHOTOGRAPH

Dimensions shown in inches and (mm).

20

15

+V

CM

10

–V

CM

5

INPUT COMMON-MODE RANGE – ± Volts

0

020

5

SUPPLY VOLTAGE – ±Volts

10

15

Figure 1. Common-Mode Voltage Range vs. Supply

30

25

20

15

VS = ±15V

600

500

400

SLEW RATE – V/µs

300

200

020

Figure 3. Slew Rate vs. Supply Voltage

20

15

10

5

SUPPLY VOLTAGE – ±Volts

10

RL = 500

15

Ω

10

5

OUTPUT VOLTAGE SWING – Volts p-p

0

10

100

LOAD RESISTANCE – Ω

VS = ±5V

1k

10k

Figure 2. Output Voltage Swing vs. Load Resistance

–4–

Ω

= 150

R

L

5

OUTPUT VOLTAGE SWING – ±Volts

0

0

5

SUPPLY VOLTAGE – ±Volts

10

15

Figure 4. Output Voltage Swing vs. Supply

2

REV. B