Datasheet

ManualsBrandsANALOG DEVICES ManualsLinear ICsLinear IC - Op-amp Current feedback SOIC 8

REV. D

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.

AD8009

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700 World Wide Web Site: http://www.analog.com

Fax: 781/326-8703 © Analog Devices, Inc., 2000

1 GHz, 5,500 V/␮s

Low Distortion Amplifier

FUNCTIONAL BLOCK DIAGRAMS

8-Lead Plastic SOIC (SO-8) 5-Lead SOT-23 (RT-5)

PRODUCT DESCRIPTION

The AD8009 is an ultrahigh speed current feedback amplifier

with a phenomenal 5,500 V/µs slew rate that results in a rise

time of 545 ps, making it ideal as a pulse amplifier.

The high slew rate reduces the effect of slew rate limiting and

results in the large signal bandwidth of 440 MHz required for

high resolution video graphic systems. Signal quality is main-

tained over a wide bandwidth with worst case distortion of

–40 dBc @ 250 MHz (G = +10, 1 V p-p). For applications

with multitone signals such as IF signal chains, the third order

Intercept (3IP) of 12 dBm is achieved at the same frequency.

This distortion performance coupled with the current feedback

architecture make the AD8009 a flexible component for a gain

stage amplifier in IF/RF signal chains.

The AD8009 is capable of delivering over 175 mA of load

current and will drive four back terminated video loads while

maintaining low differential gain and phase error of 0.02% and

0.04° respectively. The high drive capability is also reflected in

the ability to deliver 10 dBm of output power @ 70 MHz with

–38 dBc SFDR.

The AD8009 is available in a small SOIC package and will

operate over the industrial temperature range –40°C to +85°C.

The AD8009 is also available in an SOT-23-5 and will operate

over the commercial temperature range 0°C to 70°C.

DISTORTION – dBc

–30

–80

–40

–50

–60

–70

–100

–90

2ND,

150⍀ LOAD

2ND,

100⍀ LOAD

3RD,

150⍀ LOAD

3RD,

100⍀ LOAD

G = 2

= 301⍀

= 2V p-p

FREQUENCY RESPONSE – MHz

1 20010 100

Figure 2. Distortion vs. Frequency; G = +2

FEATURES

Ultrahigh Speed

5,500 V/␮s Slew Rate, 4 V Step, G = +2

545 ps Rise Time, 2 V Step, G = +2

Large Signal Bandwidth

440 MHz, G = +2

320 MHz, G = +10

Small Signal Bandwidth (–3 dB)

1 GHz, G = +1

700 MHz, G = +2

Settling Time 10 ns to 0.1%, 2 V Step, G = +2

Low Distortion Over Wide Bandwidth

SFDR

–44 dBc @ 150 MHz, G = +2, V

= 2 V p-p

–41 dBc @ 150 MHz, G = +10, V

= 2 V p-p

3rd Order Intercept (3IP)

26 dBm @ 70 MHz, G = +10

18 dBm @ 150 MHz, G = +10

Good Video Specifications

Gain Flatness 0.1 dB to 75 MHz

0.01% Differential Gain Error, R

= 150 ⍀

0.01ⴗ Differential Phase Error, R

= 150 ⍀

High Output Drive

175 mA Output Load Drive

10 dBm with –38 dBc SFDR @ 70 MHz, G = +10

Supply Operation

+5 V to ⴞ5 V Voltage Supply

14 mA (Typ) Supply Current

APPLICATIONS

Pulse Amplifier

IF/RF Gain Stage/Amplifiers

High Resolution Video Graphics

High Speed Instrumentations

CCD Imaging Amplifier

FREQUENCY RESPONSE – MHz

–8

–1

–2

–3

–4

–5

–6

–7

100010

NORMALIZED GAIN – dB

100

G = +2

= 301⍀

= 150⍀

G = +10

= 200⍀

= 100⍀

= 2Vp–p

Figure 1. Large Signal Frequency Response; G = +2 and +10

OUT

AD8009

–V

+IN

–IN

NC = NO CONNECT

AD8009

–IN

+IN

–V

OUT

Summary of content (13 pages)

PAGE 1
a 1 GHz, 5,500 V/␮s Low Distortion Amplifier AD8009 FEATURES Ultrahigh Speed 5,500 V/␮s Slew Rate, 4 V Step, G = +2 545 ps Rise Time, 2 V Step, G = +2 Large Signal Bandwidth 440 MHz, G = +2 320 MHz, G = +10 Small Signal Bandwidth (–3 dB) 1 GHz, G = +1 700 MHz, G = +2 Settling Time 10 ns to 0.
PAGE 2
(@ T = 25ⴗC, V = ⴞ5 V, R = 100 ⍀, for R Package: R = 301 ⍀ for G = +1, +2, R AD8009–SPECIFICATIONS = 200 ⍀ for G = +10, for RT Package: R = 332 ⍀ for G = +1, R = 226 ⍀ for G = +2 and R = 191 for G = +10, unless otherwise noted.) A F Model DYNAMIC PERFORMANCE –3 dB Small Signal Bandwidth, VO = 0.2 V p-p R Package RT Package Large Signal Bandwidth, VO = 2 V p-p Gain Flatness 0.1 dB, VO = 0.2 V p-p Slew Rate Settling Time to 0.
PAGE 3
AD8009 ABSOLUTE MAXIMUM RATINGS 1 MAXIMUM POWER DISSIPATION Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.6 V Internal Power Dissipation2 Small Outline Package (R) . . . . . . . . . . . . . . . . . . . . 0.75 Watts Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . . ± VS Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . ± 3.5 V Output Short Circuit Duration . . . . . . . . . . . . . . . . . . . . . .
PAGE 4
AD8009–Typical Performance Characteristics 3 6.2 2 6.1 G = +1, R G = +1, RT 6.0 0 R PACKAGE: RL = 100⍀ VO = 200mV p–p G = +1, +2: RF = 301⍀ G = +10: RF = 200⍀ RT PACKAGE: G = +1: RF = 332⍀ G = +2: RF = 226⍀ G = +10: RF = 191⍀ –1 –2 –3 –4 –5 GAIN FLATNESS – dB NORMALIZED GAIN – dB 1 G = +2, R & RT G = +10, R & RT G = +2 RF = 301⍀ RL = 150⍀ VO = 200mV p–p 5.8 5.7 5.6 5.5 5.4 –6 –7 5.9 5.3 5.2 10 100 FREQUENCY – MHz 1 1000 1 1000 Figure 7. Gain Flatness; G = +2 Figure 4.
PAGE 5
AD8009 –30 –30 G=2 RF = 301⍀ VO = 2V p-p –40 DISTORTION – dBc –50 DISTORTION – dBc –40 2ND, 100⍀ LOAD –60 2ND, 150⍀ LOAD –70 3RD, 100⍀ LOAD –80 3RD, 150⍀ LOAD –45 –50 –55 3RD –60 –65 –75 –80 –100 1 10 FREQUENCY RESPONSE – MHz 100 5 200 200 –35 –40 250MHz –40 –45 –45 70MHz DISTORTION – dBc –55 5MHz –60 –65 200⍀ –70 22.1⍀ 50⍀ 50⍀ 50⍀ –60 –65 –70 –90 –95 –10 0 2 4 6 8 10 200⍀ 22.
PAGE 6
AD8009 1M 0 –10 301⍀ 301⍀ VIN = 200mVp–p –20 –40 GAIN RL = 100⍀ 10k –80 PHASE VO 154⍀ 154⍀ 100⍀ –25 CMRR– dB 100k PHASE – Degrees TRANSRESISTANCE– ⍀ –15 –30 –35 –40 –45 1k –120 –50 –55 100 0.01 0.1 1 100 10 –160 1000 –60 1 10 100 FREQUENCY – MHz 1000 FREQUENCY – MHz Figure 16. Transresistance and Phase vs. Frequency Figure 19. CMRR vs.
PAGE 7
AD8009 –20 25 –30 G = +10 RF = 200⍀ 20 –50 15 S12 – dB NOISE FIGURE – dB –40 G = +10 RF = 301⍀ RL = 100⍀ 10 –60 –70 –80 5 –90 0 1 10 100 SOURCE RESISTANCE – ⍀ 500 1 Figure 22. Noise Figure 10 100 FREQUENCY – MHz 1000 Figure 25. Reverse Isolation (S12 ); G = +10 2.0 2.2 1.8 2.0 CCOMP 49.9⍀ 49.9⍀ 1.8 1.6 VSWR VSWR 200⍀ 1.4 1.6 22.1⍀ 1.4 CCOMP = 0pF 1.2 1.2 CCOMP = 3pF 1 1 0 0.1 1 10 FREQUENCY – MHz 100 0 0.1 500 Figure 23.
PAGE 8
AD8009 G = +2 RF = 301⍀ RL = 150⍀ VO = 200mV p–p 50mV G = +10 RF = 200⍀ RL = 100⍀ VO = 200mV p–p 1ns 50mV Figure 28. Small Signal Transient Response; G = +2 Figure 31. Small Signal Transient Response; G = +10 G = +2 RF = 301⍀ RL = 150⍀ VO = 2V p–p 500mV G = +10 RF = 200⍀ RL = 100⍀ VO = 2V p–p 1ns 500mV Figure 29. 2 V Transient Response; G = +2 2ns Figure 32. 2 V Transient Response; G = +10 G = +2 RF = 301⍀ RL = 150⍀ VO = 4V p–p 1V 2ns G = +10 RF = 200⍀ RL = 100⍀ VO = 4V p–p 1.
PAGE 9
AD8009 8 12 CA = 2pF 3 dB/div 7 6 6 CA = 1pF 1 dB/div 4 0 CA = 0pF 1 dB/div 3 –3 2 –6 VOUT = 200mV p–p VIN 1 50⍀ CA 0.001␮F 2 49.9⍀ 100⍀ 499⍀ 0 +5V –9 VOUT ZIN = 50⍀ ZOUT = 50⍀ 3 GAIN – dB 5 GAIN – dB HP8753D 9 0.1␮F + 10␮F 7 AD8009 3 49.9⍀ 6 WAVETEK 5201 BPF 4 –12 301⍀ 499⍀ –15 –1 301⍀ 1 10 1000 100 FREQUENCY – MHz 0.001␮F –5V Figure 34. Small Signal Frequency Response vs. Parasitic Capacitance 0.1␮F 10␮F + Figure 36.
PAGE 10
AD8009 75⍀ COAX PRIMARY MONITOR IOUTR ADV7160 ADV7162 75⍀ RED 75⍀ 75⍀ GREEN 75⍀ 75⍀ BLUE 75⍀ IOUTG IOUTB 5V + 0.1␮F 10␮F 7 3 ADDITIONAL MONITOR AD8009 2 6 75⍀ 75⍀ COAX 4 RED 75⍀ 301⍀ 301⍀ 0.1␮F –5V + 10␮F 3 6 AD8009 75⍀ 2 GREEN 75⍀ BLUE 75⍀ 301⍀ 301⍀ 3 AD8009 6 75⍀ 2 301⍀ 301⍀ Figure 38.
PAGE 11
AD8009 Driving a Capacitive Load A capacitive load, like that presented by some A/D converters, can sometimes be a challenge for an op amp to drive depending on the architecture of the op amp. Most of the problem is caused by the pole created by the output impedance of the op amp and the capacitor that is driven. This creates extra phase shift that can eventually cause the op amp to become unstable.
PAGE 12
AD8009 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). C01011a–0–10/00 (rev. D) 8-Lead SOIC (SO-8) 0.1968 (5.00) 0.1890 (4.80) 0.1574 (4.00) 0.1497 (3.80) 8 5 1 4 PIN 1 0.0688 (1.75) 0.0532 (1.35) 0.0098 (0.25) 0.0040 (0.10) SEATING PLANE 0.2440 (6.20) 0.2284 (5.80) 0.0500 0.0192 (0.49) (1.27) 0.0138 (0.35) BSC 0.0196 (0.50) x 45° 0.0099 (0.25) 0.0098 (0.25) 0.0075 (0.19) 8° 0° 0.0500 (1.27) 0.0160 (0.41) 5-Lead Plastic Surface Mount (SOT-23) (RT-5) 0.1181 (3.00) 0.1102 (2.80) 0.
PAGE 13
This datasheet has been download from: www.datasheetcatalog.com Datasheets for electronics components.