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LTC5532ES6 Datasheet

  • LTC5532ES6

  • 300MHz to 7GHz Precision RF Power Detector with Gain and Off...

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Final Electrical Specifications
LTC5532
300MHz to 7GHz
Precision RF Power Detector
with Gain and Offset Adjustment
August 2003
FEATURES
s
s
s
s
s
s
s
s
s
DESCRIPTIO
Temperature Compensated Internal Schottky
Diode RF Detector
Wide Input Frequency Range: 300MHz to 7GHz
Wide Input Power Range: 鈥?2dBm to 8dBm
Buffered Detector Output with External Gain Control
Precision V
OUT
Offset Control
Low Offset Voltage: 120mV
鹵35mV
for Gain = 2x
Wide V
CC
Range of 2.7V to 6V
Low Operating Current: 500碌A(chǔ)
Available in a Low Profile (1mm) SOT-23 Package
The LTC
廬
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
package. The
supply voltage range is optimized for operation from a
single lithium-ion cell or 3xNiMH.
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 offset voltage of 120mV
鹵35mV
can be
precisely adjusted using the V
OS
pin.
The LTC5532 operates with input power levels from
鈥?2dBm to 8dBm.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
s
s
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
TYPICAL APPLICATIO
Output Voltage vs RF Input Power
300MHz to 7GHz RF Power Detector
33pF
RF
INPUT
1
V
OUT
OUTPUT VOLTAGE (mV)
3600
V
CC
= 3.6V
3200 T
A
= 25擄C
GAIN = 2
2800 V
OS
= 0V
2400
2000
1600
1200
800
400
2000MHz
3000MHz
LTC5532
V
CC
6
RF
IN
100pF
5
R
A
V
OS
V
M
5532 TA01
V
CC
0.1碌F
2
GND
V
OUT
V
OS
REFERENCE
3
4
R
B
0
鈥?2 鈥?7 鈥?2 鈥?7 鈥?2 鈥?
鈥?
RF INPUT POWER (dBm)
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
U
U
U
1000MHz
300MHz
4000MHz
5000MHz
6000MHz
7000MHz
3
8
5532 TA02
5532i
1

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