MAX2472EUT-T

Manufacturer Part NumberMAX2472EUT-T
DescriptionRF Amplifier 500MHz to 2500Mhz VC O Buffer Amplifier w
ManufacturerMaxim Integrated Products
TypeBuffer Amplifier
MAX2472EUT-T datasheet
 


Specifications of MAX2472EUT-T

Operating Frequency2500 MHzNoise Figure10.2 dB at 1900 MHz
Operating Supply Voltage3 V, 5 VSupply Current5.2 mA
Maximum Power Dissipation696 mWMaximum Operating Temperature+ 85 C
Mounting StyleSMD/SMTPackage / CaseSOT-23
Minimum Operating Temperature- 40 CNumber Of Channels1 Channel
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19-1466; Rev 0; 6/99
General Description
The MAX2472/MAX2473 are flexible, wideband, high-
reverse-isolation buffer amplifiers. The MAX2472 has dual
open-collector outputs capable of delivering -5dBm into
50Ω while maintaining harmonic suppression below
-25dBc. The MAX2473 has a single open-collector output
with a bias control pin to vary output power from -10dBm
to -2dBm while maintaining harmonic suppression below
-25dBc. The MAX2472/MAX2473’s combination of high
reverse isolation and low supply current makes them ideal
for applications requiring high performance with low
power. They feature high input impedance and open-col-
lector outputs for maximum flexibility, enabling them to be
used with a variety of oscillator topologies.
Both the MAX2472 and MAX2473 operate from a single
+2.7V to +5.5V supply. With V
= +3.0V and -25dBm
CC
input power, the MAX2472 consumes 5.2mA, while the
MAX2473 consumes only 2.7mA. Both devices are avail-
able in a tiny 6-pin SOT23 package requiring minimal
board space.
Cellular and PCS Mobile Phones
Private Mobile Radios
ISM-Band Applications
IF/RF Oscillators
General-Purpose Buffers/Amplifiers
Typical Operating Circuits appear at end of data sheet.
Pin Configuration
TOP VIEW
OUT1 (OUT)
1
6
MAX2472
GND
2
5
MAX2473
OUT2 (BIAS)
3
4
SOT23-6
( ) ARE FOR MAX2473.
________________________________________________________________ Maxim Integrated Products
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
500MHz to 2500MHz
VCO Buffer Amplifiers
+2.7V to +5.5V Supply Range
500MHz to 2500MHz Input Frequency Range
High Reverse Isolation: 49dB at 900MHz
Dual Open-Collector Outputs (MAX2472)
Adjustable -10dBm to -2dBm Output Power
Control (MAX2473)
High Input Impedance: >250Ω at 900MHz
Ultra-Small SOT23-6 Package
PART
MAX2472EUT-T
MAX2473EUT-T -40°C to +85°C
Applications
IN
V
CC
GND
IN
IN
Features
Ordering Information
TEMP.
PIN-
SOT
RANGE
PACKAGE
TOP MARK
-40°C to +85°C
6 SOT23-6
AAAZ
6 SOT23-6
AABA
Functional Diagrams
V
CC
BIAS
OUT2
MAX2472
OUT1
GND
GND
V
CC
BIAS
BIAS
MAX2473
OUT
GND
GND
1

MAX2472EUT-T Summary of contents

  • Page 1

    ... Supply Range 500MHz to 2500MHz Input Frequency Range High Reverse Isolation: 49dB at 900MHz Dual Open-Collector Outputs (MAX2472) Adjustable -10dBm to -2dBm Output Power Control (MAX2473) High Input Impedance: >250Ω at 900MHz Ultra-Small SOT23-6 Package PART MAX2472EUT-T MAX2473EUT-T -40°C to +85°C Applications GND IN IN ...

  • Page 2

    VCO Buffer Amplifiers ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +7V CC OUT1, OUT2, BIAS to GND........................-0. Maximum BIAS Pin Current................................................150µA Maximum Input Power....................................................+10dBm Continuous Power Dissipation SOT23-6 (derate 8.7mW/°C above +70°C)...................696mW Stresses beyond ...

  • Page 3

    AC ELECTRICAL CHARACTERISTICS—MAX2472 (continued) ( Typical Operating Circuits , V = +3V +25°C, unless otherwise noted.) PARAMETER SYMBOL Reverse Isolation S (IN to OUT1) Noise Figure Isolation (OUT1 to OUT2) Harmonic Suppression AC ELECTRICAL CHARACTERISTICS—MAX2473 ( Typical Operating ...

  • Page 4

    VCO Buffer Amplifiers (MAX2472/MAX2473 EV kit +3V SUPPLY CURRENT vs. TEMPERATURE 7 -20dBm 900MHz IN 6 5.0 4.0 -40 -20 ...

  • Page 5

    EV kit +3V _______________________________________________________________________________________ 500MHz to 2500MHz VCO Buffer Amplifiers Typical Operating Characteristics (continued) = +25°C, unless otherwise noted.) A MAX2472 SCATTERING PARAMETERS (IN to OUT 2) 5 ...

  • Page 6

    VCO Buffer Amplifiers (MAX2472/MAX2473 EV kit +3V SUPPLY CURRENT vs. R BIAS ...

  • Page 7

    EV kit +3V REVERSE ISOLATION vs 900MHz IN -35 -40 -45 -50 -55 - BIAS 600MHz IN ...

  • Page 8

    VCO Buffer Amplifiers (MAX2472/MAX2473 EV kit +3V _______________________________________________________________________________________ Typical Operating Characteristics (continued) = +25°C, unless otherwise noted.) A MAX2473 SCATTERING PARAMETERS (IN to OUT) ...

  • Page 9

    PIN MAX2472 MAX2473 1 — — — — Table 1. Output Matching Components OPERATING FREQUENCY (MHz) 22nH 600 Coilcraft 0603HS-22NTJBC 12nH 900 Coilcraft 0603HS-12NTJBC 2.2nH 1900 Murata LQG11AZN2500 1.2nH ...

  • Page 10

    VCO Buffer Amplifiers 1.3pF 1k IN (PIN 4) GND (PIN 5) Figure 1. Input Structure V CC (PIN GND (PIN 2) Figure 2. Output Structure Applications Information Input Considerations The MAX2472/MAX2473 offer high-impedance inputs ...

  • Page 11

    V pin as possible. For long V CC (inductive), it may be necessary to add additional decoupling capacitors located farther away from the device package. Proper connection of the GND pins is essential to achieving maximum ...

  • Page 12

    VCO Buffer Amplifiers 12 ______________________________________________________________________________________ Package Information Chip Information TRANSISTOR COUNT: 109 ...