3.3 GHz Ultralow Distortion

RF/IF Differential Amplifier

Data Sheet

ADL5562

Rev. F

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FEATURES

Pin-strappable gain adjust: 6 dB, 12 dB, 15.5 dB

Differential or single-ended input to differential output

10 MHz: −91 dBc HD2, −98 dBc HD3

70 MHz: −102 dBc HD2, −90 dBc HD3

140 MHz: −104 dBc HD2, −87 dBc HD3

250 MHz: −80 dBc HD2, −94 dBc HD3

IMD3s of −94 dBc at 250 MHz center

Slew rate: 9.8 V/ns

Fast settling of 2 ns and overdrive recovery of 3 ns

Single-supply operation: 3 V to 3.6 V

Power-down control

Fabricated using the high speed XFCB3 SiGe process

APPLICATIONS

Differential ADC drivers

Single-ended to differential conversion

RF/IF gain blocks

SAW filter interfacing

FUNCTIONAL BLOCK DIAGRAM

VIP2

ENBL

VCOM

VOP

VIP1

VIN1

VIN2

ADL5562

GND

VCC

VON

Figure 1.

GENERAL DESCRIPTION

The ADL5562 is a high performance differential amplifier

optimized for RF and IF applications. The amplifier offers low

noise of 2.1 nV/√Hz and excellent distortion performance over

a wide frequency range, making it an ideal driver for high speed

8-bit to 16-bit ADCs.

The ADL5562 provides three gain levels of 6 dB, 12 dB, and

15.5 dB through a pin-strappable configuration. For the single-

ended input configuration, the gains are reduced to 5.6 dB,

11.1 dB, and 14.1 dB. Using an external series input resistor

expands the amplifier gain flexibility and allows for any gain

selection from 0 dB to 15.5 dB.

The quiescent current of the ADL5562 is typically 80 mA and,

when disabled, consumes less than 3 mA, offering excellent

input-to-output isolation.

The device is optimized for wideband, low distortion

performance. These attributes, together with its adjustable gain

capability, make this device the amplifier of choice for general-

purpose IF and broadband applications where low distortion,

noise, and power are critical. This device is optimized for the

best combination of slew speed, bandwidth, and broadband

distortion. These attributes allow it to drive a wide variety of

analog-to-digital converters (ADCs) and make it ideally suited

for driving mixers, pin diode attenuators, SAW filters, and

multi-element discrete devices.

Fabricated on an Analog Devices, Inc., high speed SiGe process,

the ADL5562 is supplied in a compact 3 mm × 3 mm, 16-lead

LFCSP package and operates over the temperature range of

−40°C to + 85°C.