ad827.pdf

High Speed, Low Power

Dual Op Amp

AD827

FEATURES

CONNECTION DIAGRAMS

HIGH SPEED

50 MHz Unity Gain Stable Operation

300 V/ m s Slew Rate

120 ns Settling Time

Drives Unlimited Capacitive Loads

8-Pin Plastic (N) and Cerdip

(Q) Packages

16-Pin Small Outline

(R) Package

EXCELLENT VIDEO PERFORMANCE

0.04% Differential Gain @ 4.4 MHz

0.19 8 Differential Phase @ 4.4 MHz

GOOD DC PERFORMANCE

2 mV max Input Offset Voltage

15 m V/ 8 C Input Offset Voltage Drift

Available in Tape and Reel in Accordance with

EIA-481A Standard

20-Pin LCC (E) Package

LOW POWER

Only 10 mA Total Supply Current for Both Amplifiers

6 5 V to 6 15 V Supplies

PRODUCT DESCRIPTION

The AD827 is a dual version of Analog Devices’ industry-

standard AD847 op amp. Like the AD847, it provides high

speed, low power performance at low cost. The AD827 achieves

a 300 V/

5 volt power

supplies. Performance is specified for operation using

5 V to

15 V power supplies.

The AD827 offers an open-loop gain of 3,500 V/V into 500

Hz,

and a low input offset voltage of 2 mV maximum. Common-

mode rejection ratio is a minimum of 80 dB. Power supply

rejection ratio is maintained at better than 20 dB with input

frequencies as high as 1 MHz, thus minimizing noise

feedthrough from switching power supplies.

The AD827 is also ideal for use in demanding video applica-

tions, driving coaxial cables with less than 0.04% differential

gain and 0.19

differential phase errors for 643 mV p-p into a

APPLICATION HIGHLIGHTS

1. Performance is fully specified for operation using ± 5 V to

± 15 V supplies.

2. A 0.04% differential gain and 0.19° differential phase error at

the 4.4 MHz color subcarrier frequency, together with its low

cost, make it ideal for many video applications.

3. The AD827 can drive unlimited capacitive loads, while its

30 mA output current allows 50 W and 75 W reverse-

terminated loads to be driven.

4. The AD827’s 50 MHz unity-gain bandwidth makes it an

ideal candidate for multistage active filters.

5. The AD827 is available in 8-pin plastic mini-DIP and cerdip,

20-pin LCC, and 16-pin SOIC packages. Chips and MIL-

STD-883B processing are also available.

reverse terminated cable.

The AD827 is also useful in multichannel, high speed data

conversion systems where its fast (120 ns to 0.1%) settling time

is of importance. In such applications, the AD827 serves as an

input buffer for 8-bit to 10-bit A/D converters and as an output

amplifier for high speed D/A converters.

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: 617/329-4700

Fax: 617/326-8703

s slew rate and 50 MHz unity-gain bandwidth while

consuming only 100 mW when operating from

loads. It also features a low input voltage noise of 15 nV/

AD827–SPECIFICATIONS (@ T A = +25 8 C, unless otherwise noted)

AD827J

AD827A/S

Model

Conditions

V S

Min Typ Max Min Typ Max Units

DC PERFORMANCE

Input Offset Voltage 1

± 5 V

0.5

0.3

T MIN to T MAX

3.5

± 15 V

T MIN to T MAX

Offset Voltage Drift

± 5 V to ± 15 V

mV/°C

Input Bias Current

± 5 V to ± 15 V

3.3

T MIN to T MAX

8.2

9.5

Input Offset Current

± 5 V to ± 15 V

300

300 nA

T MIN to T MAX

400

400 nA

Offset Current Drift

± 5 V to ± 15 V

0.5

nA/°C

Common-Mode Rejection Ratio

V CM = ± 2.5 V

± 5 V

CM = ± 12 V

± 15 V

MIN to T MAX

± 5 V to ± 15 V 75

Power Supply Rejection Ratio

± 5 V to ± 15 V75

MIN to T MAX

Open-Loop Gain

V O = ± 2.5 V

± 5 V

R LOAD = 500 W

3.5

V/mV

T MIN to T MAX

V/mV

R LOAD = 150 W

1.6

V/mV

V OUT = ± 10 V

± 15 V

R LOAD = 1 kW

5.5

V/mV

T MIN to T MAX

1.5

V/mV

MATCHING CHARACTERISTICS

Input Offset Voltage

± 5 V

0.4

0.2

Crosstalk

f = 5 MHz

± 5 V

DYNAMIC PERFORMANCE

Unity-Gain Bandwidth

± 5 V

MHz

± 15 V

MHz

Full Power Bandwidth 2

V O = 5 V p-p,

R LOAD = 500 W±5 V

12.7

MHz

V O = 20 V p-p,

R LOAD = 1 k

W±

15 V

4.7

MHz

Slew Rate 3

R LOAD = 500 W5 V

200

V/ms

R LOAD = 1 kW15 V

300

V/ms

Settling Time to 0.1%

A V = –1

–2.5 V to +2.5 V

± 5 V

–5 V to +5 V

± 15 V

120

Phase Margin

C LOAD = 10 pF

15 V

R LOAD = 1 kW

Degrees

Differential Gain Error

f = 4.4 MHz

± 15 V

0.04

Differential Phase Error

f = 4.4 MHz

15 V

0.19

Degree s

Input Voltage Noise

f = 10 kHz

± 15 V

nV/ÖHz

Input Current Noise

f = 10 kHz

± 15 V

1.5

pA/ÖHz

Input Common-Mode

Voltage Range

± 5 V

+4.3

–3.4

15 V

+14.3

–13.4

Output Voltage Swing

R LOAD = 500 W5 V

3.0

3.6

3.0

3.6

± V

R LOAD = 150

W±

5 V

2.5

3.0

2.5

3.0

R LOAD = 1 kW± 15 V

13.3

± V

R LOAD = 500 W15 V

12.2

± V

Short-Circuit Current Limit

5 V to

15 V

INPUT CHARACTERISTICS

Input Resistance

300

Input Capacitance

1.5

–2–

REV. B

AD827

AD827J

AD827A/S

Model

Conditions

V S

Min Typ Max

Units

OUTPUT RESISTANCE

Open Loop

POWER SUPPLY

Operating Range

± 4.5

± 18

± 4.5

± 18

Quiescent Current

± 5 V

MIN to T MAX

16.5/17.5

± 15 V

10.5 13.5

T MIN to T MAX

16.5

17/18

TRANSISTOR COUNT

NOTES

1 Offset voltage for the AD827 is guaranteed after power is applied and the device is fully warmed up. All other specifications are measured using high speed test equip-

ment, approximately 1 second after power is applied.

2 Full Power Bandwidth = Slew Rate/2 p V PEAK .

3 Gain = +1, rising edge.

All min and max specifications are guaranteed.

Specifications subject to change without notice.

ABSOLUTE MAXIMUM RATINGS 1

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ORDERING GUIDE

18 V

Internal Power Dissipation 2

Plastic (N) Package (Derate at 10 mW/°C) . . . . . . . . 1.5 W

Cerdip (Q) Package (Derate at 8.7 mW/

Temperature

Package

Model

Range

Description

Option

C) . . . . . . . . 1.3 W

Small Outline (R) Package (Derate at 10 mW/

AD827JN

C to +70

8-Pin Plastic DIP N-8

C) . . . 1.5 W

LCC (E) Package (Derate at 6.7 mW/°C) . . . . . . . . . 1.0 W

Input Common Mode Voltage . . . . . . . . . . . . . . . . . . . . . .

AD827JR

C to +70

16-Pin Plastic SO R-16

AD827AQ

–40

C to +85

8-Pin Cerdip

Q-8

V S

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

Output Short Circuit Duration 3 . . . . . . . . . . . . . . . . Indefinite

Storage Temperature Range (N, R) . . . . . . . –65

AD827SQ

–55

C to +125

C 8-Pin Cerdip

Q-8

AD827SQ/883B

–55

C to +125

C 8-Pin Cerdip

Q-8

5962-9211701MPA –55

C to +125

C 8-Pin Cerdip

Q-8

C to +125

AD827SE/883B

–55

C to +125

C 20-Pin LCC

E-20A

5962-9211701M2A –55

C to +125

C 20-Pin LCC

E-20A

Storage Temperature Range (Q) . . . . . . . . . –65

C to +150

AD827JR-REEL

C to +70

Tape & Reel

Operating Temperature Range

AD827J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

AD827JChips

C to +70

Die

C to +70

AD827SChips

–55°C to +125°C Die

AD827A . . . . . . . . . . . . . . . . . . . . . . . . . . . –40

C to +85

AD827S . . . . . . . . . . . . . . . . . . . . . . . . . . –55

C to +125

METALIZATION PHOTOGRAPH

Contact factory for latest dimensions.

Dimensions shown in inches and (mm).

Substrate is connected to V+.

Lead Temperature Range

(Soldering to 60 sec) . . . . . . . . . . . . . . . . . . . . . . . +300

NOTES

1 Stresses above those listed under “Absolute Maximum Ratings” may cause

permanent damage to the device. This is a stress rating only, and 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 ratings for extended periods may affect device reliability.

2 Maximum internal power dissipation is specified so that T J does not exceed

+175

C at an ambient temperature of +25

Thermal Characteristics:

Mini-DIP:

JA = 100

C/Watt;

JC = 33

C/ Watt

Cerdip:

JA = 110

C/Watt;

JC = 30

C/Watt

16-Pin Small Outline Package:

JA = 100

C/Watt

3 Indefinite short circuit duration is only permissible as long as the absolute

maximum power rating is not exceeded.

JA = 150

C/Watt;

JC = 35

REV. B

–3–

20-Pin LCC:

AD827

–Typical Characteristics

(@ +25

C &

15 V, unless otherwise noted)

+V IN

+V OUT

–V IN

–V OUT

R LOAD = 1k

SUPPLY VOLTAGE

Volts

SUPPLY VOLTAGE

Volts

Figure 1. Input Common-Mode Range

vs. Supply Voltage

Figure 2. Output Voltage Swing vs.

Supply Voltage

Figure 3. Output Voltage Swing vs.

Load Resistance

Figure 4. Quiescent Current vs.

Supply Voltage

Figure 5. Input Bias Current vs.

Temperature

Figure 6. Closed-Loop Output

Impedance vs. Frequency, Gain = +1

V S =

15V

V S =

–60

–40 –20

60 80

100

120

140

TEMPERATURE –

Figure 7. Quiescent Current vs.

Temperature

Figure 8. Short-Circuit Current

Limit vs. Temperature

Figure 9. Gain Bandwidth vs.

Temperature

–4–

REV. B

AD827

Figure 10. Open-Loop Gain and

Phase Margin vs. Frequency

Figure 11. Open-Loop Gain vs.

Load Resistance

Figure 12. Power Supply Rejection

Ratio vs. Frequency

Figure 13. Common-Mode

Rejection Ratio vs. Frequency

Figure 14. Large Signal Frequency

Response

Figure 15. Output Swing and Error

vs. Settling Time

400

RISE

350

A V = +1

SLEW RATE 10 – 90%

300

FALL

V S =

15V

250

RISE

200

V S =

FALL

150

100

–60 –40 –20

20 40 60 80 100 120 140

TEMPERATURE –

Figure 16. Harmonic Distortion vs.

Frequency

Figure 17. Input Voltage Noise

Spectral Density

Figure 18. Slew Rate vs.

Temperature

REV. B

–5–

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