Triple, 1.5 GHz Op Amp

AD8003

Rev. A

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FEATURES

High speed

1650 MHz (G = +1)

4300 V/μs (G = +2, 4 V step)

Settling time 12 ns to 0.1%, 2 V step

Excellent for QXGA resolution video

Gain flatness 0.1 dB to 190 MHz

Low voltage offset: 0.7 mV (typical)

Low input bias current: 7 μA (typical)

Low noise: 1.8 nV/√Hz

Low distortion over wide bandwidth: SFDR −73 dBc @ 20 MHz

High output drive: 100 mA output load drive

Supply operation: +5 V to ±5 V voltage supply

Supply current: 9.5 mA/amplifier

APPLICATIONS

High resolution video graphics

Professional video

Consumer video

High speed instrumentation

CONNECTION DIAGRAM

1

2

3

4

5

6

18

17

16

15

14

13

7

8

9

10

11

12

24

23

22

21

20

19

FEEDBACK 3

–IN 3

+IN 3

POWER DOWN 3

FEEDBACK 1

–IN 1

+IN 1

POWER DOWN 1

Figure 1. 24-Lead, 4 mm × 4 mm LFCSP_VQ (CP-24)

GENERAL DESCRIPTION

The AD8003 is a triple ultrahigh speed current feedback

amplifier. Using ADI’s proprietary eXtra Fast Complementary

Bipolar (XFCB) process, the AD8003 achieves a bandwidth of

1.5 GHz and a slew rate of 4300 V/μs. Additionally, the

amplifier provides excellent dc precision with an input bias

current of 50 μA maximum and a dc input voltage of 0.7 mV.

The AD8003 has excellent video specifications with a frequency

response that remains flat out to 190 MHz and 0.1% settling within

12 ns to ensure that even the most demanding video systems

maintain excellent fidelity. For applications that use NTSC video,

as well as high speed video, the amplifier provides a differential

gain of 0.05% and a differential gain of 0.01°.

The AD8003 has very low spurious-free dynamic range (SFDR)

(−73 dBc @ 20 MHz) and noise (1.8 nV/√Hz). With a supply

range between 5 V and 11 V and ability to source 100 mA of

output current, the AD8003 is ideal for a variety of applications.

The AD8003 operates on only 9.5 mA of supply current per

amplifier. The independent power-down function of the

AD8003 reduces the quiescent current even further to 1.6 mA.

The AD8003 amplifier is available in a compact 4 mm × 4 mm,

24-lead LFCSP_VQ. The AD8003 is rated to work over the

industrial temperature range of −40°C to +85°C.

1

100

1000

–7

–6

–5

–4

–3

–2

–1

0

1

2

3

FREQUENCY (MHz)

10

G= +1

G= +2

G= +5

Figure 2. Large Signal Frequency Response for Various Gains