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What is LTC5582?

This electronic component, produced by the manufacturer "Linear Technology", performs the same function as "40MHz to 10GHz RMS Power Detector".


LTC5582 Datasheet PDF - Linear Technology

Part Number LTC5582
Description 40MHz to 10GHz RMS Power Detector
Manufacturers Linear Technology 
Logo Linear Technology Logo 


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LTC5582www.DataSheet4U.com
40MHz to 10GHz
RMS Power Detector with
57dB Dynamic Range
Features
n Frequency Range: 40MHz to 10GHz
n Linear Dynamic Range: Up to 57dB
n Accurate RMS Power Measurement of High Crest
Factor Modulated Waveforms
n Exceptional Accuracy Over Temperature: ±0.5dB (Typ)
n Low Linearity Error within Dynamic Range
n Single-Ended or Differential RF Inputs
n Fast Response Time: 90ns Rise Time
n Low Supply Current: 41.6mA at 3.3V (Typ)
n Small 3mm × 3mm DFN10
Applications
n RMS Power Measurement
n PA Power Control
n Receive and Transmit Gain Control
n LTE, WiMAX, W-CDMA, CDMA2K, TD-SCDMA,
EDGE Basestations
n Point-to-Point Microwave Links
n RF Instrumentation
Description
The LTC®5582 is a 40MHz to 10GHz RMS responding power
detector. It is capable of accurate power measurement
of an AC signal with wide dynamic range, from –60dBm
to 2dBm depending on frequency. The power of the AC
signal in an equivalent decibel-scaled value is precisely
converted into DC voltage on a linear scale, independent of
the crest factor of the input signal waveforms. The LTC5582
is suitable for precision RF power measurement and level
control for a wide variety of RF standards, including LTE,
WiMAX, W-CDMA, CDMA2000, TD-SCDMA, and EDGE.
The DC output is buffered with a low output impedance
amplifier capable of driving a high capacitance load. Con-
sult factory for more information. The part is packaged in
a 10-lead 3mm × 3mm DFN. It is pin-to-pin compatible
with the LT5570.
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 7262661, 7317357, 7622981.
Typical Application
40MHz to 6GHz RMS Power Detector
1µF 1nF
270pF 68Ω
1nF
VCC FLTR
IN+ EN
LTC5582
DEC RT1
INRT2
GND
OUT
5582 TA01a
3.3V
100nF
ENABLE
VOUT
Linearity Error vs RF Input Power
2140MHz Modulated Waveforms
3 TA = 25°C
2
1
0
–1
–2
–3
–65
4-CARRIER WCDMA
CW
3-CARRIER CDMA2K
–55 –45 –35 –25 –15
RF INPUT POWER (dBm)
–5 5
5582 TAO1b
5582f


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LTC5582 equivalent
LTC5582www.DataSheet4U.com
Typical Performance Characteristics
noted. Test circuits shown in Figure 1.
VCC = 3.3V, EN = 3.3V, TA = 25°C unless otherwise
Output Voltage, Linearity Error vs
RF Input Power, 450MHz
2.8 Rt1 = 12k
Rt2 = 2k
2.4
3
2
Output Voltage Temperature
Variation from 25°C, 450MHz
3 Rt1 = 12k
Rt2 = 2k
2
Linear Error vs RF Input Power,
Modulated Waveforms, 450MHz
3 TA = 25°C
2
2.0 1 1
1
TA = 85°C
1.6 0 0
0
TA = –40°C
1.2 –1 –1
–1
0.8
0.4
–65
TA = 85°C
TA = 25°C
TA = –40°C
–55 –45 –35 –25 –15
RF INPUT POWER (dBm)
–2
–3
–5 5
5582 G03
–2
–3
–65
–55 –45 –35 –25 –15
RF INPUT POWER (dBm)
–5 5
5582 G04
–2
–3
–65
4-CARRIER WCDMA
CW
3-CARRIER CDMA2K
–55 –45 –35 –25 –15
RF INPUT POWER (dBm)
–5 5
5582 G05
Output Voltage, Linearity Error vs
RF Input Power, 880MHz
2.8 Rt1 = 12k 3
Rt2 = 2k
2.4 2
2.0 1
1.6 0
1.2 –1
0.8
0.4
–65
TA = 85°C
TA = 25°C
TA = –40°C
–55 –45 –35 –25 –15
RF INPUT POWER (dBm)
–2
–3
–5 5
5582 G06
Output Voltage Temperature
Variation from 25°C, 880MHz
3 Rt1 = 12k
Rt2 = 2k
2
1
TA = 85°C
0
TA = –40°C
–1
–2
–3
–65
–55 –45 –35 –25 –15
RF INPUT POWER (dBm)
–5 5
5582 G07
Linear Error vs RF Input Power,
Modulated Waveforms, 880MHz
3 TA = 25°C
2
1
0
–1
–2
–3
–65
4-CARRIER WCDMA
CW
3-CARRIER CDMA2K
–55 –45 –35 –25 –15
RF INPUT POWER (dBm)
–5 5
5582 G08
Output Voltage, Linearity Error vs
RF Input Power, 2140MHz
2.8 Rt1 = 0
3
Rt2 = 2k
2.4 2
2.0 1
1.6 0
1.2 –1
0.8
0.4
–65
TA = 85°C
TA = 25°C
TA = –40°C
–55 –45 –35 –25 –15
RF INPUT POWER (dBm)
–2
–3
–5 5
5582 G09
Output Voltage Temperature
Variation from 25°C, 2140MHz
3 Rt1 = 0
Rt2 = 2k
2
1
TA = 85°C
0 TA = –40°C
–1
–2
–3
–65
–55 –45 –35 –25 –15
RF INPUT POWER (dBm)
–5 5
5582 G10
Linear Error vs RF Input Power,
Modulated Waveforms, 2140MHz
3 TA = 25°C
2
1
0
–1
–2
–3
–65
4-CARRIER WCDMA
CW
3-CARRIER CDMA2K
–55 –45 –35 –25 –15
RF INPUT POWER (dBm)
–5 5
5582 G11
5582f



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LTC5582 datasheet


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