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AD8350AR15-AD8350AR15-REEL7-AD8350AR20-AD8350AR-20-AD8350AR20-REEL7
Low Distortion 1.0 GHz Differential Amplifier
REV. 0
Low Distortion
1.0 GHz Differential Amplifier
FUNCTIONAL BLOCK DIAGRAMSFEATURES
High Dynamic Range
Output IP3: +22 dBm: Re 50 V @ 250 MHz
Low Noise Figure:5.9dB @ 250 MHz
Two Gain Versions:
AD8350-1515 dB
AD8350-2020 dB
–3 dB Bandwidth:1.0 GHz
Single Supply Operation: +5 V to +10 V
Supply Current:28 mA
Input/Output Impedance: 200 V
Single-Ended or Differential Input Drive
8-Lead SOIC Package
APPLICATIONS
Cellular Base Stations
Communications Receivers
RF/IF Gain Block
Differential A-to-D Driver
SAW Filter Interface
Single-Ended to Differential Conversion
High Performance Video
High Speed Data Transmission
PRODUCT DESCRIPTIONThe AD8350 series are high performance fully-differential
amplifiers useful in RF and IF circuits up to 1000 MHz. The
amplifier has excellent noise figure of 5.9 dB at 250 MHz. It
offers a high output third order intercept (OIP3) of +22dBm
at 250MHz. Gain versions of 15dB and 20 dB are offered.
The AD8350 is designed to meet the demanding performance
requirements of communications transceiver applications. It
enables a high dynamic range differential signal chain, with
exceptional linearity and increased common-mode rejection.
The device can be used as a general purpose gain block, an
A-to-D driver, and high speed data interface driver, among
other functions. The AD8350 input can also be used as a single-
ended-to-differential converter.
The amplifier can be operated down to +5 V with an OIP3 of
+22dBm at 250 MHz and slightly reduced distortion perfor-
mance. The wide bandwidth, high dynamic range and tempera-
ture stability make this product ideal for the various RF and IF
frequencies required in cellular, CATV, broadband, instrumen-
tation and other applications.
The AD8350 is offered in an 8-lead single SOIC package. It
operates from +5V and +10V power supplies, drawing 28mA
typical. The AD8350 offers a power enable function for power-
sensitive applications. The AD8350 is fabricated using Analog
Devices’ proprietary high speed complementary bipolar process.
The device is available in the industrial (–40°C to +85°C)
temperature range.
8-Lead SOIC Package (with Enable)
AD8350-15–SPECIFICATIONS
(@ +258C, VS = +5 V, G = 15dB, unless otherwise noted. All specifications refer
to differential inputs and differential outputs unless noted.)NOTES
1See Tables I–IV for complete list of S-Parameters.
2Re: 50 W.
AD8350
(@ +258C, VS = +5 V, G = 20dB, unless otherwise noted. All
specifications refer to differential inputs and differential outputs
unless noted.)NOTESSee Tables I–IV for complete list of S-Parameters.Re: 50 W.
AD8350-20–SPECIFICATIONS
AD8350
CAUTIONESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD8350 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
ORDERING GUIDENOTES
113" Reels of 2500 each.
27" Reels of 750 each.
ABSOLUTE MAXIMUM RATINGS*Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . .+11 V
Input Power Differential . . . . . . . . . . . . . . . . . . . . . . .+8 dBm
Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . .400 mWJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100°C/W
Maximum Junction Temperature . . . . . . . . . . . . . . . .+125°C
Operating Temperature Range . . . . . . . . . . . .–40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . .–65°C to +150°C
Lead Temperature Range (Soldering 60 sec) . . . . . . . .+300°C
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may effect device reliability.
PIN CONFIGURATION
IN+
ENBL
VCC
OUT+
IN–
GND
GND
OUT–
PIN FUNCTION DESCRIPTIONS
TEMPERATURE – 8C
SUPPLY CURRENT – mA
–20020406080Figure 1.Supply Current vs.
Temperature
FREQUENCY – MHz
IMPEDANCE –
1001001k Figure 4.AD8350-15 Input Imped-
ance vs. Frequency
FREQUENCY – MHz
IMPEDANCE –
1001001kFigure 7.AD8350-20 Output Imped-
ance vs. Frequency
FREQUENCY – MHz
GAIN – dB1001k10k Figure 2.AD8350-15 Gain (S21) vs.
Frequency
FREQUENCY – MHz
IMPEDANCE –
1001001kFigure 5.AD8350-20 Input Imped-
ance vs. Frequency
FREQUENCY – MHz
ISOLATION – dB
–251001k10k Figure 8.AD8350-15 Isolation (S12)
vs. Frequency
FREQUENCY – MHz
GAIN – dB101001k10kFigure 3.AD8350-20 Gain (S21) vs.
Frequency
FREQUENCY – MHz
IMPEDANCE –
1001001kFigure 6.AD8350-15 Output Imped-
ance vs. Frequency
Figure 9.AD8350-20 Isolation (S12)
vs. Frequency
AD8350
FUNDAMENTAL FREQUENCY – MHz
DISTORTION – dBc
–80100150200250300Figure 10.AD8350-15 Harmonic
Distortion vs. Frequency
Figure 13.AD8350-20 Harmonic Dis-
tortion vs. Differential Output Voltage
FREQUENCY – MHz
OIP3 – dBm (Re: 5050100150200250300Figure 16.AD8350-15 Output
Referred IP3 vs. Frequency
FUNDAMENTAL FREQUENCY – MHz
DISTORTION – dBc
–8050100150200250300Figure 11.AD8350-20 Harmonic
Distortion vs. Frequency
FREQUENCY – MHz
OIP2 – dBm (Re: 5050100150200250300Figure 14.AD8350-15 Output
Referred IP2 vs. Frequency
FREQUENCY – MHz
OIP3 – dBm (Re: 5050100150200250300Figure 17.AD8350-20 Output
Referred IP3 vs. Frequency
OUTPUT VOLTAGE – V p-p
DISTORTION – dBc
–850.511.522.533.5Figure 12.AD8350-15 Harmonic Dis-
tortion vs. Differential Output Voltage
FREQUENCY – MHz
OIP2 – dBm (Re: 5050100150200250300Figure 15.AD8350-20 Output
Referred IP2 vs. Frequency
Figure 18.AD8350-15 1 dB Compres-
sion vs. Frequency
