AD8099 datasheet(1/30 Pages) AD

Part #	AD8099

Description	0.88nV/√Hz 730MHz, 500V/μs, Low Distortion Rail-to-Rail Output Op Amps with Shutdown

PDF	30 Pages

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Manufacturer	AD [Analog Devices]

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LTC6228/LTC6229

1

Rev. B

For more information www.analog.com

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TYPICAL APPLICATION

FEATURES

DESCRIPTION

0.88nV/√Hz 730MHz, 500V/µs,

Low Distortion Rail-to-Rail Output Op

Amps with Shutdown

The LTC®6228/LTC6229 are single/dual very fast, low

noise rail-to-rail output, unity gain stable op amps. They

have a gain-bandwidth product of 890MHz and a slew rate

of 500V/μs. The low input referred voltage noise of only

0.88nV/√Hz and low distortion performance of better than

−100dB at 4VP-P even for signals as fast as 2MHz make

them ideal for applications that require high dynamic

range and deal with high slew rate signals, such as driving

A/D converters. Additional features include Shutdown and

the ability to enable/disable internal bias current cancel-

lation to optimize noise performance.

The combination of low offset, low offset drift, high gain

and high CMRR make the LTC6228 family the superior

choice for wide dynamic range applications.

The LTC6228 family maintains excellent performance for

supply voltages of 2.8V to 11.75V and the devices are

specified at supplies of 3V, 5V and 10V(±5V). With an

input range extending to the negative rail and an out-

put range that encompasses the entire supply range, the

operational amplifier can accommodate wide swinging

signals, and single supply operation.

For space constrained PCB layouts, the LTC6228 is avail-

able in a 2mm × 2mm DFN and the LTC6229 is available in a

3mm × 3mm DFN. The amplifiers are also available in con-

ventional leaded packages. These amplifiers can be used

as improved replacements for many high speed op amps

to improve speed, noise, distortion and dynamic range.

LTC6228 Based Driver for the LTC2387-18 SAR ADC

APPLICATIONS

n

Ultra Low Voltage Noise: 0.88nV/√Hz

n

Low Distortion at High Speeds:

HD2/HD3 < −100dBc (Av = +1, 4VP-P, 2MHz, RL = 1kΩ)

n

High Slew Rate: 500V/μs

n

GBW = 890MHz

n

–3dB Frequency (AV = +1): 730MHz

n

Input Offset Voltage: 250μV Max Across Temperature

n

Offset Drift :0.4μV/°C

n

Input Common Mode Range Includes Negative Rail

n

Output Swings Rail-to-Rail

n

Supply Current: 16mA/Channel Typ

n

Shutdown Supply Current = 500µA

n

Operating Supply Range: 2.8V to 11.75V

n

Large Output Current: 80mA Min

n

Very High Open Loop Gain: 5.6V/μV (135dB), RL = 1kΩ

n

Operating Temp Range: –40°C to 125°C

n

Singles in 8-Lead SOIC, TSOT-23, DC-6, Duals in

DD10, MS8

n

Optical Electronics: Fast Transimpedance Amplifiers

n

Driving High Dynamic Range A/D Converters

n

Active Filters

n

Video Amplifiers

n

High Speed Differential to Single-Ended Conversion

n

Low Voltage Hi-Fi Amplification

All registered trademarks and trademarks are the property of their respective owners.

–

+

0.1µF

LTC6228

25

IN–

IN+

VCM

CLK

82pF

4.096V

0V

82pF

6228 TA01a

LTC2387-18

DCO

DA

LVDS

INTERFACE

DB

TWOLANES

TESTPAT

PD

SAMPLE

CLOCK

CNV

REFB

–

+

LTC6228

25

4.096V

0V

7.5V

–2.5V

System Performance: 2 x LTC6228 Driving LTC2387-18

8192 Point FFT, –1dBFS

fSMPL = 15Msps, fIN = 1MHz

7.3VP-P 1MHz INPUT SIGNAL

SNR = 93.4dB

SFDR = 95dB

THD = –93.8dB

FREQUENCY (MHz)

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5

–140

–120

–100

–80

–60

–40

–20

0

6228 TA02

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