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ADL5565 Datasheet PDF : 28 Pages
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6 GHz Ultrahigh Dynamic Range
Differential Amplifier
ADL5565
FEATURES
3 dB bandwidth of 6 GHz (AV = 6 dB)
Pin strappable gain adjust: 6 dB, 12 dB, and 15.5 dB
Gain range from 0 dB to 15.5 dB using two external resistors
Differential or single-ended input to differential output
Low noise input stage: NF = 8.7 dB at 15.5 dB gain
Low broadband distortion (AV = 6 dB)
10 MHz: −107 dBc (HD2), −110 dBc (HD3)
100 MHz: −108 dBc (HD2), −103 dBc (HD3)
200 MHz: −82 dBc (HD2), −87 dBc (HD3)
500 MHz: −68 dBc (HD2), −63 dBc (HD3)
IMD3 of −113 dBc at 100 MHz center
Slew rate: 11 V/ns
Fast settling and overdrive recovery of 2 ns
Single-supply operation: 2.8 V to 5.2 V
Power down
Fabricated using the high speed XFCB3 SiGe process
APPLICATIONS
Differential ADC drivers
Single-ended-to-differential conversion
RF/IF gain blocks
SAW filter interfacing
GENERAL DESCRIPTION
The ADL5565 is a high performance differential amplifier
optimized for RF and IF applications. The amplifier offers low
noise of 1.5 nV/√Hz and excellent distortion performance over
a wide frequency range making it an ideal driver for high speed
8-bit to 16-bit analog-to-digital converters (ADCs).
The ADL5565 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 5.3 dB, 10.3 dB,
and 13 dB. Using two external series resistors expands the gain
flexibility of the amplifier and allows for any gain selection from
0 dB to 15.5 dB for a differential input and 0 dB to 13 dB for a
single-ended input.
FUNCTIONAL BLOCK DIAGRAM
VCC
RF
RG2
VIP2
RG1
VIP1
RG1
VIN1
RG2
VIN2
ENBL
VON
VCOM
VOP
RF ADL5565
GND
Figure 1.
The quiescent current of the ADL5565 is typically 70 mA, and
when disabled, consumes less than 5 mA with −25 dB of input-
to-output isolation at 100 MHz.
The device is optimized for wideband, low distortion, and noise
performance, giving it unprecedented performance for overall
spurious-free dynamic range. 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 SiGe process, the
ADL5565 is supplied in a compact 3 mm × 3 mm, 16-lead LFCSP
package and operates over the −40°C to +85°C temperature range.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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