Analog Devices AD829SQ-883B, AD829SQ, AD829SE-883B, AD829SCHIPS, AD829JR-REEL7 Datasheet

High-Speed, Low-Noise

a

FEATURES
High Speed

120 MHz Bandwidth, Gain = –1
230 V/␮s Slew Rate
90 ns Settling Time to 0.1%

Ideal for Video Applications

0.02% Differential Gain

0.04ⴗ Differential Phase

Low Noise

1.7 nV/√Hz Input Voltage Noise

1.5 pA/√Hz Input Current Noise

Excellent DC Precision

1 mV max Input Offset Voltage (Over Temp)

0.3 ␮V/ⴗC Input Offset Drift

Flexible Operation

Specified for ⴞ5 V to ⴞ15 V Operation
ⴞ3 V Output Swing into a 150 ⍀ Load
External Compensation for Gains 1 to 20
5 mA Supply Current

Available in Tape and Reel in Accordance with

EIA-481A Standard

PRODUCT DESCRIPTION

The AD829 is a low noise (1.7 nV/√Hz), high speed op amp
with custom compensation that provides the user with gains
from ±1 to ± 20 while maintaining a bandwidth greater than
50 MHz. The AD829’s 0.04° differential phase and 0.02%
differential gain performance at 3.58 MHz and 4.43 MHz,
driving reverse-terminated 50 Ω or 75 Ω cables, makes it ideally
suited for professional video applications. The AD829 achieves
its 230 V/µs uncompensated slew rate and 750 MHz gain band-
width product while requiring only 5 mA of current from the
power supplies.

The AD829’s external compensation pin gives it exceptional
versatility. For example, compensation can be selected to opti­mize the bandwidth for a given load and power supply voltage.
As a gain-of-two line driver, the –3 dB bandwidth can be in­creased to 95 MHz at the expense of 1 dB of peaking. In addi­tion, the AD829’s output can also be clamped at its external
compensation pin.

The AD829 has excellent dc performance. It offers a minimum
open-loop gain of 30 V/mV into loads as low as 500 Ω, low
input voltage noise of 1.7 nV/√Hz, and a low input offset volt­age of 1 mV maximum. Common-mode rejection and power
supply rejection ratios are both 120 dB.

The AD829 is also useful in multichannel, high speed data
conversion where its fast (90 ns to 0.1%) settling time is of
importance. In such applications, the AD829 serves as an input
buffer for 8-to-10-bit A/D converters and as an output I/V con­verter for high speed D/A converters.

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.

Video Op Amp

AD829

CONNECTION DIAGRAMS

8-Lead Plastic Mini-DIP (N),

Cerdip (Q) and SOIC (R) Packages

–V

–IN

+IN

S

1

AD829

2

3

TOP VIEW

4

(Not to Scale)

OFFSET NULL

20-Lead LCC Pinout

NC

OFFSET

NULL

4

NC

5

–IN

NC

+IN

NC

NC = NO CONNECT

The AD829 provides many of the same advantages that a trans­impedance amplifier offers, while operating as a traditional

6
7
8

9 10111213

AD829

TOP VIEW

(Not to Scale)

NC

–V

voltage feedback amplifier. A bandwidth greater than 50 MHz
can be maintained for a range of gains by changing the external
compensation capacitor. The AD829 and the transimpedance
amplifier are both unity gain stable and provide similar voltage
noise performance (1.7 nV/√Hz). However, the current noise of
the AD829 (1.5 pA/√Hz) is less than 10% of the noise of trans­impedance amps. Furthermore, the inputs of the AD829 are
symmetrical.

PRODUCT HIGHLIGHTS

1. Input voltage noise of 2 nV/√Hz, current noise of 1.5 pA/
√Hz and 50 MHz bandwidth, for gains of 1 to 20, make the

AD829 an ideal preamp.

2. Differential phase error of 0.04° and a 0.02% differential
gain error, at the 3.58 MHz NTSC and 4.43 MHz PAL and
SECAM color subcarrier frequencies, make it an outstanding
video performer for driving reverse-terminated 50 Ω and
75 Ω cables to ±1 V (at their terminated end).

3. The AD829 can drive heavy capacitive loads.

4. Performance is fully specified for operation from ±5 V to
±15 V supplies.

5. Available in plastic, cerdip, and small outline packages.
Chips and MIL-STD-883B parts are also available.

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

8

OFFSET NULL
+V

7

6

OUTPUT
C

5

NC

OFFSET

NULL

NC

20 19123

18
17
16
15
14

COMP

NC

NC

C

S

COMP

NC
+V
NC
OUTPUT

NC

AD829–SPECIFICATIONS

(@ TA = +25ⴗC and VS = ⴞ15 V dc, unless otherwise noted)

Model Conditions V

S

Min Typ Max Min Typ Max Units

INPUT OFFSET VOLTAGE ±5 V, ± 15 V 0.2 1 0.1 0.5 mV

AD829J/AR AD829AQ/S

to T

T

MIN

MAX

1 0.5 mV

Offset Voltage Drift ±5 V, ± 15 V 0.3 0.3 µV/°C

INPUT BIAS CURRENT ±5 V, ± 15 V 3.3 7 3.3 7 µA

T

MIN

to T

MAX

8.2/9.5 9.5 µA

INPUT OFFSET CURRENT ±5 V, ± 15 V 50 500 50 500 nA

T

MIN

to T

MAX

500 500 nA

Offset Current Drift ±5 V, ± 15 V 0.5 0.5 nA/°C

OPEN-LOOP GAIN V

= ±2.5 V ±5 V

O

R

= 500 Ω 30 65 30 65 V/mV

LOAD

T

to T

MIN

MAX

= 150 Ω 40 40 V/mV

R

LOAD

V

= ±10 V ±15 V

OUT

R

= 1 kΩ 50 100 50 100 V/mV

LOAD

to T

T

MIN

R

MAX

= 500 Ω 85 85 V/mV

LOAD

20 20 V/mV

20 20 V/mV

DYNAMIC PERFORMANCE

Gain Bandwidth Product ±5 V 600 600 MHz

Full Power Bandwidth

1, 2

VO = 2 V p-p
R

= 500 Ω±5 V 25 25 MHz

LOAD

±15 V 750 750 MHz

VO = 20 V p-p
R

= 1 kΩ±15 V 3.6 3.6 MHz

Slew Rate

2

LOAD

R

= 500 Ω±5 V 150 150 V/µs

LOAD

R

= 1 kΩ±15 V 230 230 V/µs

LOAD

Settling Time to 0.1% AV = –19

–2.5 V to +2.5 V ±5 V 65 65 ns

Phase Margin

DIFFERENTIAL GAIN ERROR

DIFFERENTIAL PHASE ERROR

2

3

3

10 V Step ±15 V 90 90 ns
C

= 10 pF ±15 V

LOAD

R

= 1 kΩ 60 60 Degrees

LOAD

R

= 100 Ω±15 V

LOAD

C

= 30 pF 0.02 0.02 %

COMP

R

= 100 Ω±15 V

LOAD

C

= 30 pF 0.04 0.04 Degrees

COMP

COMMON-MODE REJECTION VCM = ±2.5 V ±5 V 100 120 100 120 dB

VCM = ±12 V ±15 V 100 120 100 120 dB
T

MIN

to T

MAX

96 96 dB

POWER SUPPLY REJECTION VS = ±4.5 V to ± 18 V 98 120 98 120 dB

T

MIN

to T

MAX

94 94 dB

INPUT VOLTAGE NOISE f = 1 kHz ±15 V 1.7 2 1.7 2 nV/√

INPUT CURRENT NOISE f = 1 kHz ± 15 V 1.5 1.5 pA/√

INPUT COMMON-MODE

VOLTAGE RANGE ±5 V +4.3 +4.3 V

–3.8 –3.8 V

±15 V +14.3 +14.3 V

–13.8 –13.8 V

OUTPUT VOLTAGE SWING R

= 500 Ω±5 V 3.0 3.6 3.0 3.6 ± V

LOAD

R

= 150 Ω±5 V 2.5 3.0 2.5 3.0 ± V

LOAD

R

50 Ω±5 V 1.4 1.4 ± V

LOAD =

R

= 1 kΩ±15 V 12 13.3 12 13.3 ± V

LOAD

R

= 500 Ω±15 V 10 12.2 10 12.2 ± V

LOAD

Short Circuit Current ±5 V, ± 15 V 32 32 mA

INPUT CHARACTERISTICS

Input Resistance (Differential) 13 13 kΩ
Input Capacitance (Differential)

4

55pF

Input Capacitance (Common Mode) 1.5 1.5 pF

CLOSED-LOOP OUTPUT

RESISTANCE AV = +1, f = 1 kHz 2 2 mΩ

Hz
Hz

–2–

REV. E

AD829

Model Conditions V

POWER SUPPLY

Operating Range ±4.5 ± 18 ± 4.5 ± 18 V
Quiescent Current ±5 V 5 6.5 5 6.5 mA

TRANSISTOR COUNT Number of Transistors 46 46

NOTES

1

Full Power Bandwidth = Slew Rate/2 π V

2

Tested at Gain = +20, C

3

3.58 MHz (NTSC) and 4.43 MHz (PAL & SECAM).

4

Differential input capacitance consists of 1.5 pF package capacitance plus 3.5 pF from the input differential pair.

Specifications subject to change without notice.

COMP

= 0 pF.

ABSOLUTE MAXIMUM RATINGS

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

Internal Power Dissipations

T

to T

MIN

MAX

T

to T

MIN

MAX

.

PEAK

1

2

S

±15 V 5.3 6.8 5.3 6.8 mA

AD829J/AR AD829AQ/S

Min Typ Max Min Typ Max Units

8.0 8.2/8.7 mA

8.3/8.5 8.5/9.0 mA

METALIZATION PHOTO

Contact factory for latest dimensions.

Dimensions shown in inches and (mm).

Plastic (N) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 Watts

Small Outline (R) . . . . . . . . . . . . . . . . . . . . . . . . . 0.9 Watts

Cerdip (Q) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 Watts

LCC (E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8 Watts

Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±V

S

Differential Input Voltage3 . . . . . . . . . . . . . . . . . . . . ±6 Volts

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

Storage Temperature Range (Q, E) . . . . . . . –65°C to +150°C

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

Operating Temperature Range

AD829J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C

AD829A . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C

AD829S . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to +125°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 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 rating
conditions for extended periods may affect device reliability.

2

Maximum internal power dissipation is specified so that TJ does not exceed

+175°C at an ambient temperature of +25°C.
Thermal characteristics:

8-lead plastic package: θJA = 100°C/watt (derate at 8.7 mW/°C)
8-lead cerdip package: θJA = 110°C/watt (derate at 8.7 mW/°C)
20-lead LCC package: θJA = 150°C/watt
8-lead small outline package: θJA = 155°C/watt (derate at 6 mW/°C).

3

If the differential voltage exceeds 6 volts, external series protection resistors should

be added to limit the input current.

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 AD829 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.

ORDERING GUIDE

REV. E

Model Temperature Range Package Description Package Option*

AD829JN 0°C to +70°C 8-Lead Plastic Mini-DIP N-8
AD829AR –40°C to +85°C 8-Lead Plastic SOIC SO-8
AD829JR 0°C to +70°C 8-Lead Plastic SOIC SO-8
AD829AR-REEL7 –40°C to +85°C Tape and Reel 7"
AD829AR-REEL –40°C to +85°C Tape and Reel 13"
AD829JR-REEL7 0°C to +70°C Tape and Reel 7"
AD829JR-REEL 0°C to +70°C Tape and Reel 13"
AD829AQ –40°C to +85°C 8-Lead Cerdip Q-8
AD829SQ –55°C to +125°C 8-Lead Cerdip Q-8
AD829SQ/883B –55°C to +125°C 8-Lead Cerdip Q-8
5962-9312901MPA –55°C to +125°C 8-Lead Cerdip Q-8
AD829SE/883B –55°C to +125°C 20-Lead LCC E-20A
5962-9312901M2A –55°C to +125°C 20-Lead LCC E-20A
AD829JCHIPS 0°C to +70°CDie
AD829SCHIPS –55°C to +125°CDie

*E = Leadless Chip Carrier (Ceramic); N = Plastic DIP; Q = Cerdip; SO = Small Outline IC (SOIC).

–3–

AD829–Typical Performance Characteristics

OUTPUT VOLTAGE SWING – Volts p–p

30

25

20

15

10

5

0

10 100

1k 10k

LOAD RESISTANCE – ⍀

ⴞ5 VOLT
SUPPLIES

ⴞ15 VOLT
SUPPLIES

20

15

+V

OUT

10

–V

OUT

5

INPUT COMMON-MODE RANGE – Volts

0

02051015

SUPPLY VOLTAGE – ⴞVolts

Figure 1. Input Common-Mode
Range vs. Supply Voltage

6.0

5.5

5.0

4.5

QUIESCENT CURRENT – mA

20

15

10

VOLTAGE – Volts

5

MAGNITUDE OF THE OUTPUT

0

02051015

SUPPLY VOLTAGE – ⴞVolts

+V

OUT

–V

OUT

R

= 1k⍀

LOAD

Figure 2. Output Voltage Swing

vs. Supply Voltage

5–

A

␮

–

4

VS = ⴞ5V, ⴞ15V

–

3

INPUT BIAS CURRENT –

Figure 3. Output Voltage Swing

vs. Resistive Load

100

10

1

0.1

0.01

AV = +20
C

COMP

= 0pF

AV = +1
C

COMP

= 68pF

4.0
02051015

SUPPLY VOLTAGE – ⴞVolts

Figure 4. Quiescent Current vs.
Supply Voltage

7

QUIESCENT CURRENT – mA

6

5

4

3

60– 20– 0 20 40 60 80 100 14040–

VS = ⴞ15V

VS = ⴞ5V

120

TEMPERATURE – ⴗC

Figure 7. Quiescent Current vs.
Temperature

2–

60– 20– 0 20406080100 140

40–

TEMPERATURE – ⴗC

120

Figure 5. Input Bias Current vs.
Temperature

40

NEGATIVE

CURRENT LIMIT

POSITIVE

CURRENT LIMIT

VS = ⴞ5V

AMBIENT TEMPERATURE – ⴗC

120

SHORT CIRCUIT CURRENT LIMIT – mA

35

30

25

20

15

60– 20– 0 20 40 60 80 100 14040–

Figure 8. Short Circuit Current
Limit vs. Temperature

0.001

CLOSED - LOOP OUTPUT IMPEDANCE – ⍀

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

FREQUENCY – Hz

Figure 6. Closed-Loop Output
Impedance vs. Frequency

65

VS = ±15V

= +20

A

V

= 0pF

C

60– 20– 0 20 40 60 80 100 14040–

COMP

120

TEMPERATURE – ⴗC

–3 dB BANDWIDTH – MHz

60

55

50

45

Figure 9. –3 dB Bandwidth vs.
Temperature

REV. E–4–