1.5 GHz Ultrahigh Speed Op Amp

AD8000

Rev. 0

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FEATURES

High speed

1.5 GHz, −3 dB bandwidth (G = +1)

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 @ 20 MHz

62 dBc SFDR @ 50 MHz

Input offset voltage: 1 mV typ

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 ADI’s proprietary eXtra Fast Com-

plementary Bipolar (XFCB) process, the amplifier 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 @ 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

1

POWER DOWN

2

FEEDBACK

3

–IN

4

+IN

7 OUTPUT

6NC

NC = NO CONNECT

AD8000

Figure 1. 8-Lead AD8000, 3 mm × 3 mm LFCSP (CP-8-2)

FEEDBACK

1

–IN

2

+IN

3

4

POWER DOWN

8

7

OUTPUT

6

NC

5

NC = NO CONNECT

AD8000

Figure 2. 8-Lead AD8000 SOIC/EP (RD-8-1)

–7

–6

–5

–4

–3

–2

–1

0

1

2

3

FREQUENCY (MHz)

1

100

10

1000

Figure 3. Large Signal Frequency Response

The AD8000 power-down mode reduces the supply current to

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

age, 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 under-

development.