4.3 GHz, Ultrahigh Dynamic Range,

Dual Differential Amplifier

Data Sheet

ADL5567

Rev. A

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FEATURES

−3 dB bandwidth of 4.3 GHz

High performance (HP), low power (LP), and power down modes

Preset 20 dB gain can be reduced by adding external resistors

Channel to channel gain error: 0.04 dB at 500 MHz

Channel to channel phase error: 0.6° at 500 MHz

Differential or single-ended input to differential output

Internally dc-coupled inputs and outputs

Low noise input stage: 7.4 dB noise figure at 500 MHz

Low broadband distortion for supply = 5V, HP mode, and 2V p-p

200 MHz: −94 dBc (HD2), −103 dBc (HD3)

500 MHz: −82 dBc (HD2), −82 dBc (HD3)

IMD3 of −104 dBc at 200 MHz and −90 dBc at 500 MHz

Low single-ended input distortion

Slew rate: 20 V/ns

Maintains low distortion for output common-mode voltage

down to 1.25 V

Single-supply operation: 3.3 V or 5 V

Low dc power consumption: 148 mA at 5 V (HP mode), and

80 mA at 3.3 V (LP mode)

APPLICATIONS

Differential ADC drivers

Single-ended to differential conversions

RF/IF gain blocks

SAW filter interfacing

FUNCTIONAL BLOCK DIAGRAM

VCOM1

RF

RF

VCCx

VIN1

PM1

PM2

VIP1

ENBL1

VON1

VOP1

VCOM2

RF

RF

RG1

RG

RG

RG1

VIN2

GND

ENBL2

VIP2

VON2

VOP2

ADL5567

Figure 1.

GENERAL DESCRIPTION

The ADL5567 is a high performance, dual differential amplifier

optimized for intermediate frequencies (IF) and dc applications.

The amplifier offers a low noise of 1.29 nV/√Hz and excellent

distortion performance over a wide frequency range, making it

an ideal driver for high speed 16-bit analog-to-digital converters

(ADCs). The ADL5567 is ideally suited for use in high performance

zero-IF and complex IF receiver designs. In addition, this device

has excellent low distortion for single-ended input driver

applications.

The ADL5567 provides a gain of 20 dB. For the single-ended input

configuration, the gain is reduced to 18 dB. Using two external

series resistors for each amplifier expands the gain flexibility of

the amplifier and allows for any gain selection from 0 dB to 20 dB

for a differential input and 0 dB to 18 dB for a single-ended input.

In addition, this device maintains low distortion down to output

common-mode levels of 1.25 V, and therefore providing an added

capability for driving CMOS ADCs at ac levels up to 2 V p-p.

The quiescent current of the ADL5567 using a 5 V supply is

typically 74 mA per amplifier in high performance mode. When

disabled, each amplifier consumes only 3.5 mA, and has 58 dB

input to output isolation at 100 MHz.

The device is optimized for wideband, low distortion, and low

noise operation, giving it unprecedented performance for overall

spurious-free dynamic range (SFDR). These attributes, together

with its adjustable gain capability, make this device the amplifier

of choice for driving a wide variety of ADCs, mixers, pin diode

attenuators, SAW filters, and multielement discrete devices.

Fabricated on an Analog Devices, Inc., high speed silicon

germanium (SiGe) process, the ADL5567 is supplied in a

compact 4 mm × 4 mm, 24-lead LFCSP package and operates

over the −40°C to +85°C temperature.