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Linear Technology Electronic Components Datasheet

LTC5596 Datasheet

100MHz to 40GHz Linear-in-dB RMS Power Detector

No Preview Available !

LTC5596
Features
100MHz to 40GHz
Linear-in-dB RMS Power Detector with
35dB Dynamic Range
Description
n Ultra Wide Matched Input Frequency Range:
100MHz to 40GHz
n 35dB Linear Dynamic Range (< ±1dB Error)
n 29mV/dB Logarithmic Slope
n ±1dB Flat Response from 200MHz to 30GHz
n Accurate RMS Power Measurement of High Crest
Factors (Up to 12dB) Modulated Waveforms
n Low Power Shutdown Mode
n Low Supply Current: 30mA at 3.3V (Typical)
n Small 2mm × 2mm Plastic DFN8 Package
n I-Grade: –40°C to 105°C Rated
H-Grade: –40°C to 125°C Rated
with Guaranteed Log-Slope and Log-Intercept
n ESD Rating: 3500V HBM, 1500V CDM
Applications
n Point-to-Point Microwave Links
n Instrumentation and Measurement Equipment
n Military Radios
n LTE, WiFi, WiMax Wireless Networks
n RMS Power Measurement
n Receive and Transmit Gain Control
n RF PA Transmit Power Control
The LTC®5596 is a high accuracy RMS power detector that
provides a very wide RF input bandwidth, from 100MHz
up to 40GHz. This makes the device suitable for a wide
range of RF and microwave applications, such as point-
to-point microwave links, instrumentation and power
control applications.
The DC output voltage of the detector is an accurate rep-
resentation of the average signal power applied to the RF
input. The response is linear-in-dB with 29mV/dB logarith-
mic slope over a 35dB dynamic range with typically better
than ±1dB accuracy. The detector is particularly suited for
measurement of waveforms with crest factor (CF) as high
as 12dB, and waveforms that exhibit a significant variation
of the crest factor during the measurement.
To achieve higher accuracy and lower output ripple, the
averaging bandwidth can be externally adjusted by a ca-
pacitor connected between the FLTR and OUT pins.
The enable interface switches the device between active
measurement mode and a low power shutdown mode.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Protected by U.S. patents, including 9330283 B2.
Typical Application
100MHz to 40GHz RMS Power Detector
ENABLE
RFIN
EN VCC
LTC5596
GND OUT
RFIN FLTR
GND GND
5596 TA01a
100nF
3.3V
CFLTR
ADC
Output Voltage vs Frequency
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0.1 1 10 100
RF FREQUENCY (GHz)
5596 TA01b
For more information www.linear.com/LTC5596
0dBm
–5dBm
–10dBm
–15dBm
–20dBm
–25dBm
–30dBm
–35dBm
5596f
1


Linear Technology Electronic Components Datasheet

LTC5596 Datasheet

100MHz to 40GHz Linear-in-dB RMS Power Detector

No Preview Available !

LTC5596
Absolute Maximum Ratings
(Note 1)
Supply Voltage (VCC)................................................3.8V
RFIN Input Signal Power - Average........................15dBm
RFIN Input Signal Power - Peak (Note 2)...............20dBm
DC Voltage at RFIN........................................ –0.3V to 1V
DC Voltage at FLTR.................................... –0.3V to 0.4V
DC Voltage at EN........................................ –0.3V to 3.8V
TJMAX..................................................................... 150°C
Case Operating Temperature Range (TC):
I-Grade (Note 3).................................. –40°C to 105°C
H-Grade (Note 4)................................ –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Pin Configuration
TOP VIEW
VCC 1
8 EN
OUT 2 9 7 GND
FLTR 3
6 RFIN
GND 4
5 GND
DC PACKAGE
8-LEAD (2mm × 2mm) PLASTIC DFN
TJMAX = 150°C, θJC = 25°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
Order Information http://www.linear.com/product/LTC5596#orderinfo
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC5596IDC#PBF
LTC5596IDC#TRPBF
LGNN
8-Lead 2mm × 2mm Plastic DFN
–40°C to 105°C
LTC5596HDC#PBF
LTC5596HDC#TRPBF LGNN
8-Lead 2mm × 2mm Plastic DFN
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
Electrical Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications
circuit is shown in Figure 1. (Note 2).
are
at
TC
=
25°C.
VCC
=
3.3V,
EN
=
3.3V.
CW,
50Ω
source
at
RFIN,
fRF
=
2140MHz,
test
I-GRADE (NOTE 3)
H-GRADE (NOTE 4)
PARAMETER
CONDITIONS
MIN TYP MAX MIN TYP MAX UNITS
RF Input
Input Frequency Range
0.1 to 40
0.1 to 40
GHz
Input Impedance
52||50
52||50
Ω||fF
Detector Response (RFIN to OUT)
RF Input Power Range, TC = 25°C
±1dB LOG-Linearity Error (Note 5, 6)
fRF = 50MHz
fRF = 100MHz
fRF = 500MHz
fRF = 2.14GHz
fRF = 5.8GHz
fRF = 7.6GHz
fRF = 10GHz
fRF = 12GHz
fRF = 15GHz
fRF = 18GHz
fRF = 24GHz
–33.2 to 6.3
–37.1 to 5.8
–40.8 to 3.3
–39.1 to 4.2
–39.7 to 3.7
–38.9 to 4.3
–39.0 to 4.2
–38.5 to 4.5
–37.5 to 5.5
–38.4 to 4.6
–39.3 to 0.2
–33.2 to 6.3
–37.1 to 5.8
–40.8 to 3.3
–39.1 to 4.2
–39.7 to 3.7
–38.9 to 4.3
–39.0 to 4.2
–38.5 to 4.5
–37.5 to 5.5
–38.4 to 4.6
–39.3 to 0.2
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
5596f
2 For more information www.linear.com/LTC5596


Part Number LTC5596
Description 100MHz to 40GHz Linear-in-dB RMS Power Detector
Maker Linear Technology
Total Page 22 Pages
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