Ultralow Distortion, High Speed,

0.95 nV/√Hz Voltage Noise Op Amp

Data Sheet

AD8099

Rev. E

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FEATURES

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

Ultralow distortion

2nd harmonic RL = 1 kΩ , G = +2

−92 dB at 10 MHz

3rd harmonic RL = 1 kΩ , G = +2

−105 dB at 10 MHz

High speed

Gain bandwidth product (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

Preamplifiers

Receivers

Instrumentation

Filters

Intermediate frequency (IF) and baseband amplifiers

Analog-to-digital drivers

Digital-to-analog converter (DAC) buffers

Optical electronics

GENERAL DESCRIPTION

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

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

of which makes 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. The Analog Devices, Inc., proprietary next generation

extra fast complimentary bipolar (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 bandwidth. 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.

CONNECTION DIAGRAMS

NOTES

1. SOLDER THE EXPOSED PADDLE

TO THE GROUND PLANE.

3

–IN

4

+IN

1

DISABLE

2

FEEDDBACK

6 CC

5 –VS

8 +VS

7 VOUT

AD8099

TOP VIEW

(Not to Scale)

Figure 1. 8-Lead LFCSP (CP-8-13)

NOTES

1. SOLDER THE EXPOSED PADDLE

TO THE GROUND PLANE.

AD8099

TOP VIEW

(Not to Scale)

FEEDBACK

1

–IN

2

+IN 3

–VS 4

DISABLE

8

+VS

7

VOUT

6

CC

5

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

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 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

VOUT = 2V p-p

VS = ±5V

RL = 1kΩ

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