Ultralow Distortion, High Speed

0.95 nV/

√Hz Voltage Noise Op Amp

AD8099

Rev. B

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© 2004 Analog Devices, Inc. All rights reserved.

FEATURES

Ultralow noise: 0.95 nV/√Hz, 2.6 pA/√Hz

Ultralow distortion

−92 dB @ 10 MHz

−105 dB @ 10 MHz

High speed

GBWP: 3.8 GHz

–3 dB bandwidth:

700 MHz (G = +2)

550 MHz (G = +10)

Slew rate:

475 V/µs (G = +2)

1350 V/µs (G = +10)

New pinout

Custom external compensation, gain range –1, +2 to +10

Supply current: 15 mA

Offset voltage: 0.5 mV max

Wide supply voltage range: 5 V to 12 V

APPLICATIONS

Pre-amplifiers

Receivers

Instrumentation

Filters

IF and baseband amplifiers

A-to-D drivers

DAC buffers

Optical electronics

CONNECTION DIAGRAMS

DISABLE

1

FEEDBACK

2

–IN

3

+IN

4

8

7

6

5

1

FEEDBACK

2

–IN

3

+IN

DISABLE

8

7

6

5

Figure 1. 8-Lead CSP (CP-8)

Figure 2. 8-Lead SOIC-ED (RD-8)

GENERAL DESCRIPTION

The AD8099 is an ultralow noise (0.95 nV/√Hz) and distortion

(–92 dBc @10 MHz) voltage feedback op amp, the combination

of which make it ideal for 16- and 18-bit systems. The AD8099

features a new, highly linear, low noise input stage that increases

the full power bandwidth (FPBW) at low gains with high slew

rates. ADI’s proprietary next generation XFCB process enables

such high performance amplifiers with relatively low power.

The AD8099 features external compensation, which lets the

user set the gain bandwidth product. External compensation

allows gains from +2 to +10 with minimal trade-off in band-

width. The AD8099 also features an extremely high slew rate of

1350 V/µs, giving the designer flexibility to use the entire

dynamic range without trading off bandwidth or distortion.

The AD8099 settles to 0.1% in 18 ns and recovers from

overdrive in 50 ns.

The AD8099 drives 100 Ω loads at breakthrough performance

levels with only 15 mA of supply current. With the wide supply

voltage range (5 V to 12 V), low offset voltage (0.1 mV typ),

wide bandwidth (700 MHz for G = +2), and a GBWP up to

3.8 GHz, the AD8099 is designed to work in a wide variety of

applications.

The AD8099 is available in a 3 mm × 3 mm lead frame chip

scale package (LFCSP) with a new pinout that is specifically

optimized for high performance, high speed amplifiers. The

new LFCSP package and pinout enable the breakthrough

performance that previously was not achievable with amplifiers.

The AD8099 is rated to work over the extended industrial

temperature range, −40°C to +125°C.

FREQUENCY (MHz)

0.1

1.0

10.0

–130

–40

–110

–100

–90

–80

–70

–60

–50

–120

SOLID LINE – SECOND HARMONIC

DOTTED LINE – THIRD HARMONIC

G = +2

Figure 3 . Harmonic Distortion vs. Frequency and Gain (SOIC)