LTC5532
1
5532f
802.11a, 802.11b, 802.11g, 802.15
Multimode Mobile Phone Products
Optical Data Links
Wireless Data Modems
Wireless and Cable Infrastructure
RF Power Alarm
Envelope Detector
Temperature Compensated Internal Schottky
Diode RF Detector
Wide Input Frequency Range: 300MHz to 7GHz*
Wide Input Power Range: –32dBm to 10dBm
Buffered Detector Output with External Gain Control
Precision V
OUT
Offset Control
Low Starting Voltage: 120mV ±35mV for Gain = 2x
Wide V
CC
Range of 2.7V to 6V
Low Operating Current: 500µA
Available in a Low Profile (1mm) SOT-23 Package
and Tiny 6-Lead (2mm × 2mm) DFN Package
Precision 300MHz to 7GHz
RF Detector with Gain
and Offset Adjustment
The LTC
®
5532 is an RF power detector for RF applications
operating in the 300MHz to 7GHz range. A temperature
compensated Schottky diode peak detector and buffer
amplifier are combined in a small ThinSOT
TM
or (2mm ×
2mm) DFN package. The supply voltage range is opti-
mized for operation from a single lithium-ion cell or 3×
NiMH.
The RF input voltage is peak detected using an on-chip
Schottky diode. The detected voltage is buffered and
supplied to the V
OUT
pin.
The LTC5532 output buffer gain is set via external resis-
tors. The initial starting voltage of 120mV ±35mV can be
precisely adjusted using the V
OS
pin.
The LTC5532 operates with RF input power levels from
–32dBm to 10dBm.
, LTC and LT are registered trademarks of Linear Technology Corporation.
300MHz to 7GHz RF Power Detector
(SOT-23 Package)
Output Voltage vs RF Input Power
(SOT-23 Package)
ThinSOT is a trademark of Linear Technology Corporation.
*Higher frequency operation is achievable with reduced performance. Consult factory for more
information.
DESCRIPTIO
U
FEATURES
APPLICATIO S
U
TYPICAL APPLICATIO
U
LTC5532ES6
1
2
3
6
5
4
100pF 0.1µF
V
CC
V
OS
REFERENCE
V
CC
V
OUT
RF
IN
GND
V
OS
33pF
5532 TA01
RF
INPUT
V
M
R
A
R
B
V
OUT
OUTPUT VOLTAGE (mV)
3600
3200
2800
2400
2000
1600
1200
800
400
0
RF INPUT POWER (dBm)
5532 TA02
–32 –27 –22
–17
–12
–7 –2 3 8
V
CC
= 3.6V
T
A
= 25°C
GAIN = 2
V
OS
= 0V
7000MHz
6000MHz
5000MHz
1000MHz
3000MHz
4000MHz
2000MHz
300MHz
LTC5532
2
5532f
V
CC
, V
OUT
, V
M
, V
OS
..................................0.3V to 6.5V
RF
IN
Voltage ......................................(V
CC
± 1.5V) to 7V
RF
IN
Power (RMS)............................................. 12dBm
I
VOUT
...................................................................... 5mA
Operating Temperature Range (Note 2) .. 40°C to 85°C
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
(Note 1)
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ORDER PART
NUMBER
S6 PART MARKING
T
JMAX
= 125°C, θ
JA
= 250°C/W
LTAFS
LTC5532ES6
6 V
CC
5 V
OUT
4 V
M
RF
IN
1
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
GND 2
V
OS
3
Maximum Junction Temperature ......................... 125°C
Storage Temperature Range ................ 65°C to 125°C
Lead Temperature (Soldering, 10 sec)
SOT-23 Only ......................................................... 300°C
ORDER PART
NUMBER
DC6 PART MARKING
LAFR
LTC5532EDC
TOP VIEW
DC6 PACKAGE
6-LEAD (2mm × 2mm) PLASTIC DFN
4
5
6
3
2
1V
CC
V
OUT
V
M
RF
IN
GND
V
OS
7
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Specifications over the –40°C to 85°C operating temperature
range are assured by design, characterization and correlation with
statistical process controls.
Note 3: The rise time at V
OUT
is measured between 1.3V and 2.3V.
Note 4: Bandwidth is calculated based on the 10% to 90% rise time
equation: BW = 0.35/rise time.
Note 5: RF performance is tested at 1800MHz
Note 6: Guaranteed by design.
Note 7: Higher frequency operation is achievable with reduced
performance. Consult factory for more information.
T
JMAX
= 125°C, θ
JA
= 85°C/W
EXPOSED PAD (PIN 7) IS GND,
MUST BE SOLDERED TO PCB
ELECTRICAL CHARACTERISTICS
The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.6V, RF Input Signal is Off, R
A
= R
B
= 1k, V
OS
= 0V unless
otherwise noted (Note 2).
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Operating Voltage 2.7 6 V
I
VCC
Operating Current I
VOUT
= 0mA 0.5 0.7 mA
V
OUT
V
OL
(No RF Input) R
LOAD
= 2k, V
OS
= 0V 85 100 to 140 155 mV
V
OUT
Output Current V
OUT
= 1.75V, V
CC
= 2.7V, V
OUT
< 10mV 24 mA
V
OUT
Bandwidth C
LOAD
= 33pF, R
LOAD
= 2k (Note 4) 2 MHz
V
OUT
Load Capacitance (Note 6) 33 pF
V
OUT
Slew Rate V
RFIN
= 1V Step, C
LOAD
= 33pF, Total R
LOAD
= 2k (Note 3) 3 V/µs
V
OUT
Noise V
CC
= 3V, Noise BW = 1.5MHz, 50 RF Input Termination, 1 mV
P-P
50 AC Output Termination
V
OS
Voltage Range 01V
V
OS
Input Current V
OS
= 1V –0.5 0.5 µA
V
M
Voltage Range 0V
CC
-1. 8 V
V
M
Input Current V
M
= 3.6V –0.5 0.5 µA
RF
IN
Input Frequency Range (Note 7) 300 to 7000 MHz
RF
IN
Input Power Range RF Frequency = 300MHz to 7GHz (Note 5, 6) V
CC
= 2.7V to 6V –32 to 10 dBm
RF
IN
AC Input Resistance F = 1000MHz, Pin = –25dBm 220
RF
IN
Input Shunt Capacitance F = 1000MHz, Pin = –25dBm 0.65 pF
LTC5532
3
5532f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Output Delay vs RF Input Power
Typical Detector Characteristics,
300MHz, Gain = 2, V
OS
= 0V
Typical Detector Characteristics,
1000MHz, Gain = 2, V
OS
= 0V
Typical Detector Characteristics,
2000MHz, Gain = 2, V
OS
= 0V
Typical Detector Characteristics,
3000MHz, Gain = 2, V
OS
= 0V
Typical Detector Characteristics,
4000MHz, Gain = 2, V
OS
= 0V
Typical Detector Characteristics,
5000MHz, Gain = 2, V
OS
= 0V
(SOT-23 Package)
Output Voltage vs Supply Voltage
(RF Input Signal Off)
Supply Current vs Supply Voltage
(RF Input Signal Off)
(R
LOAD
= 20k) Characteristics are for both packages
unless otherwise indicated.
SUPPLY VOLTAGE (V)
2.5
130
125
120
115
110
5.0
5532 G01
4.53.5 5.54.03.0 6.0
V
OUT
OUTPUT VOLTAGE (mV)
V
OS
= 0V
GAIN = 2
T
A
= 85°C
T
A
= 25°C
T
A
= –40°C
SUPPLY VOLTAGE (V)
2.5
500
480
460
440
420
5.0
5532 G02
4.53.5 5.54.03.0 6.0
SUPPLY CURRENT (µA)
T
A
= 85°C
T
A
= 25°C
T
A
= –40°C
RF INPUT POWER (dBm)
–10
OUTPUT DELAY (ns)
10
5532 G03
–5
0
5
1000
800
600
400
200
0
V
CC
= 3.6V
T
A
= 25°C
V
OS
= 0V
GAIN = 2
90% SWITCHING
50% SWITCHING
V
OUT
OUTPUT VOLTAGE (mV)
3600
3200
2800
2400
2000
1600
1200
800
400
0
RF INPUT POWER (dBm)
5532 G04
–32 –28 –24 –20
–16
–12
–8 –4 0 4 8
V
CC
= 3.6V
T
A
= –40°C
T
A
= 85°C
T
A
= 25°C
V
OUT
OUTPUT VOLTAGE (mV)
3600
3200
2800
2400
2000
1600
1200
800
400
0
RF INPUT POWER (dBm)
5532 G05
–32 –28 –24 –20
–16
–12
–8 –4 0 4 8
V
CC
= 3.6V
T
A
= –40°C
T
A
= 85°C
T
A
= 25°C
V
OUT
OUTPUT VOLTAGE (mV)
3600
3200
2800
2400
2000
1600
1200
800
400
0
RF INPUT POWER (dBm)
5532 G06
–32 –28 –24 –20
–16
–12
–8 –4 0 4 8
V
CC
= 3.6V
T
A
= –40°C
T
A
= 85°C
T
A
= 25°C
V
OUT
OUTPUT VOLTAGE (mV)
3600
3200
2800
2400
2000
1600
1200
800
400
0
RF INPUT POWER (dBm)
5532 G07
–32 –28 –24 –20
–16
–12
–8 –4 0 4 8
V
CC
= 3.6V
T
A
= –40°C
T
A
= 85°C
T
A
= 25°C
V
OUT
OUTPUT VOLTAGE (mV)
3600
3200
2800
2400
2000
1600
1200
800
400
0
RF INPUT POWER (dBm)
5532 G08
–32 –28 –24 –20
–16
–12
–8 –4 0 4 8
V
CC
= 3.6V
T
A
= –40°C
T
A
= 85°C
T
A
= 25°C
V
OUT
OUTPUT VOLTAGE (mV)
3600
3200
2800
2400
2000
1600
1200
800
400
0
RF INPUT POWER (dBm)
5532 G09
–32 –28 –24 –20
–16
–12
–8 –4 0 4 8
V
CC
= 3.6V
T
A
= –40°C
T
A
= 85°C
T
A
= 25°C

LTC5532ES6#TRMPBF

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
RF Detector Prec 300MHz to 7GHz RF Detector w/ Gain
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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