MAX2470EUT-T Maxim Integrated Products, MAX2470EUT-T Datasheet

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MAX2470EUT-T

Manufacturer Part Number
MAX2470EUT-T
Description
RF Amplifier DCS-PCS Band +14dBm to +20dBm LO Buffers
Manufacturer
Maxim Integrated Products
Type
Buffer Amplifierr
Datasheet
1.MAX2471EUTT.pdf (8 pages)

Specifications of MAX2470EUT-T

Operating Frequency
500 MHz
Noise Figure
10.2 dB at 500 MHz
Operating Supply Voltage
3 V, 5 V
Supply Current
5.5 mA
Maximum Power Dissipation
696 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SOT-23
Minimum Operating Temperature
- 40 C
Number Of Channels
1 Channel
The MAX2470/MAX2471 are flexible, low-cost, high-
reverse-isolation buffer amplifiers for applications with
discrete and module-based VCO designs. Both feature
differential 50Ω outputs for driving a single differential
(balanced) load or two separate single-ended (unbal-
anced) 50Ω loads. The MAX2470 offers a single-ended
input and has two selectable frequency ranges of oper-
ation: 10MHz to 500MHz and 10MHz to 200MHz. The
MAX2471 offers a differential input and operates from
10MHz to 500MHz. The MAX2470/MAX2471 also feature
high input impedance for maximum flexibility, enabling
them to be used with a variety of oscillator topologies.
High reverse isolation combined with low supply current
make them ideal for applications requiring high perfor-
mance with low power.
These devices are also ideal for use as active baluns.
The MAX2470 converts a single-ended input to a differ-
ential output. The MAX2471 is useful as a differential
buffer stage or to convert from a differential input to two
single-ended outputs.
The MAX2470 operates from a single +2.7V to +5.5V
supply. At -5dBm output power, it consumes 5.5mA in
the high-frequency range and only 3.6mA in the
low-frequency range. The MAX2471 operates from a
+2.7V to +5.5V single supply and consumes 5.5mA.
Both devices are available in ultra-small SOT23-6 plas-
tic packages, requiring minimal board space.
19-4797; Rev 0; 2/99
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.
Cellular and PCS Mobile Phones
ISM-Band Applications
Active Baluns
General-Purpose Buffers/Amplifiers
TOP VIEW
( ) ARE FOR MAX2471
GND
OUT
OUT
________________________________________________________________ Maxim Integrated Products
10MHz to 500MHz VCO Buffer Amplifiers
1
2
3
General Description
SOT23-6
MAX2470
MAX2471
Pin Configuration
6
5
4
Applications
V
IN
HI/LO (IN)
CC
with Differential Outputs
MAX2470EUT-T
MAX2471EUT-T
+2.7V to +5.5V Supply Range
Input Frequency Range
>14dB Power Gain at 200MHz
64dB Typical Reverse Isolation at 200MHz
Low-Distortion Output Drive
Ultra-Small SOT23-6 Package
High Input Impedance
Single-Ended (MAX2470) or Differential
(MAX2471) Inputs
High: 10MHz to 500MHz (MAX2470/2471)
Low: 10MHz to 200MHz (MAX2470)
PART
IN
IN
IN
Typical Operating Circuits
V
V
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
CC
CC
BIAS
BIAS
GND
GND
Ordering Information
HI/LO
MAX2470
MAX2471
PACKAGE
6 SOT23-6
6 SOT23-6
PIN-
OUT
OUT
OUT
OUT
Features
50
50
SOT TOP
50
50
MARK
AAAX
AAAY
1

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MAX2470EUT-T Summary of contents

Page 1

... Input Frequency Range High: 10MHz to 500MHz (MAX2470/2471) Low: 10MHz to 200MHz (MAX2470) >14dB Power Gain at 200MHz 64dB Typical Reverse Isolation at 200MHz Low-Distortion Output Drive Ultra-Small SOT23-6 Package High Input Impedance Single-Ended (MAX2470) or Differential (MAX2471) Inputs PART MAX2470EUT-T MAX2471EUT-T Applications HI/LO (IN) Features Ordering Information PIN- TEMP ...

Page 2

VCO Buffer Amplifiers with Differential Outputs ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0. GND......-0. 0.3V) or 3.7V (whichever is lower ..................................................................-2.2V to +2.2V HI/LO to ...

Page 3

VCO Buffer Amplifiers AC ELECTRICAL CHARACTERISTICS—MAX2470 (continued) , all outputs are differentially measured between OUT and OUT driving a 50Ω load through a 180° hybrid +3V, HI/ +25°C, unless ...

Page 4

VCO Buffer Amplifiers with Differential Outputs (V = +3.0V, MAX2470 output and MAX2471 input and output measurements taken differentially noted.) MAX2470 SUPPLY CURRENT vs. SUPPLY VOLTAGE (HI/LO = GND) 4.0 -5dBm OUTPUT POWER f = ...

Page 5

VCO Buffer Amplifiers (V = +3.0V, MAX2470 output and MAX2471 input and output measurements taken differentially noted.) MAX2470 OUTPUT VSWR vs. FREQUENCY 1.50 HI/ INPUT TERMINATED IN 50 SINGLE-ENDED MEASUREMENT OUT 1.25 ...

Page 6

VCO Buffer Amplifiers with Differential Outputs PIN NAME MAX2470 MAX2471 1 1 OUT 2 2 GND OUT — HI/LO IN — _______________ Detailed Description Bandwidth Control ...

Page 7

VCO Buffer Amplifiers Chip Information TRANSISTOR COUNT: 67 _______________________________________________________________________________________ with Differential Outputs Package Information 7 ...

Page 8

VCO Buffer Amplifiers with Differential Outputs 8 _______________________________________________________________________________________ NOTES ...

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