1.5 GHz, Ultrahigh Speed Op Amp

Data Sheet

AD8000

Rev. C

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FEATURES

High speed

1.5 GHz, −3 dB bandwidth (G = +1)

650 MHz, full power bandwidth (G = +2, VO = 2 V p-p)

Slew rate: 4100 V/μs

0.1% settling time: 12 ns

Excellent video specifications

0.1 dB flatness: 170 MHz

Differential gain: 0.02%

Differential phase: 0.01°

Output overdrive recovery: 22 ns

Low noise: 1.6 nV/√Hz input voltage noise

Low distortion over wide bandwidth

75 dBc SFDR at 20 MHz

62 dBc SFDR at 50 MHz

Input offset voltage: 1 mV typical

High output current: 100 mA

Wide supply voltage range: 4.5 V to 12 V

Supply current: 13.5 mA

Power-down mode

APPLICATIONS

Professional video

High speed instrumentation

Video switching

IF/RF gain stage

CCD imaging

GENERAL DESCRIPTION

The AD8000 is an ultrahigh speed, high performance, current

feedback amplifier. Using Analog Devices, Inc., proprietary

eXtra Fast Complementary Bipolar (XFCB) process, the ampli-

fier can achieve a small signal bandwidth of 1.5 GHz and a slew

rate of 4100 V/μs.

The AD8000 has low spurious-free dynamic range (SFDR) of

75 dBc at 20 MHz and input voltage noise of 1.6 nV/√Hz. The

AD8000 can drive over 100 mA of load current with minimal

distortion. The amplifier can operate on +5 V to ±6 V. These

specifications make the AD8000 ideal for a variety of applica-

tions, including high speed instrumentation.

With a differential gain of 0.02%, differential phase of 0.01°, and

0.1 dB flatness out to 170 MHz, the AD8000 has excellent video

specifications, which ensure that even the most demanding

video systems maintain excellent fidelity.

CONNECTION DIAGRAMS

POWER DOWN

FEEDBACK

–IN

+IN

OUTPUT

+VS

NC

–VS

AD8000

TOP VIEW

(Not to Scale)

NOTES

1. NC = NO CONNECT.

2. THE EXPOSED PADDLE IS CONNECTED TO GROUND.

3

4

1

2

6

5

8

7

Figure 1. 8-Lead AD8000, 3 mm × 3 mm LFCSP (CP-8-13)

NOTES

1. NC = NO CONNECT.

2. THE EXPOSED PADDLE IS CONNECTED TO GROUND.

FEEDBACK

1

–IN

2

+IN

3

–VS

4

POWER DOWN

8

+VS

7

OUTPUT

6

NC

5

AD8000

TOP VIEW

(Not to Scale)

Figure 2. 8-Lead AD8000 SOIC_N_EP (RD-8-1)

The AD8000 power-down mode reduces the supply current to

1.3 mA. The amplifier is available in a tiny 8-lead LFCSP package,

as well as in an 8-lead SOIC package. The AD8000 is rated to work

over the extended industrial temperature range (−40°C to +125°C).

A triple version of the AD8000 (AD8003) is underdevelopment.

–7

–6

–5

–4

–3

–2

–1

0

1

2

3

FREQUENCY (MHz)

1

100

10

1000

VS = 5V

RL = 150

VOUT = 2V p-p

G = +2, RF = 432

Figure 3. Large Signal Frequency Response