Datasheet

REV. B
AD8309
–3–
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage V
S
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 V
Input Level, Differential (re 50 Ω) . . . . . . . . . . . . . . . +26 dBm
Input Level, Single-Ended (re 50 Ω) . . . . . . . . . . . . . +20 dBm
Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . 500 mW
θ
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C/W
θ
JC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27.6°C/W
Maximum Junction Temperature . . . . . . . . . . . . . . . . +125°C
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD8309 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
PIN CONFIGURATION
TOP VIEW
(Not to Scale)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
COM2
VLOG
AD8309
VPS1
PADL
INHI
INLO
PADL
COM1
ENBL
VPS2
PADL
LMHI
LMLO
PADL
FLTR
LMDR
PIN FUNCTION DESCRIPTIONS
Pin Name Function
1 COM2 Special Common Pin for RSSI Output.
2 VPS1 Supply Pin for First Five Amplifier Stages
and the Main Biasing System.
3, 6, 11, 14 PADL Four Tie-Downs to the Paddle on Which
the IC Is Mounted; Grounded.
4 INHI Signal Input, HI or Plus Polarity.
5 INLO Signal Input, LO or Minus Polarity.
7 COM1 Main Common Connection.
8 ENBL Chip Enable; Active When HI.
9 LMDR Limiter Drive Programming Pin.
10 FLTR RSSI Bandwidth-Reduction Pin.
12 LMLO Limiter Output, LO or Minus Polarity.
13 LMHI Limiter Output, HI or Plus Polarity.
15 VPS2 Supply Pin for Sixth Gain Stage, Limiter
and RSSI Output Stage Load Current.
16 VLOG Logarithmic (RSSI) Output.
ORDERING GUIDE
Temperature Package Package
Model Range Description Option
AD8309ARU –40°C to +85°C 16-Lead TSSOP RU-16
AD8309ARU-REEL –40°C to +85°C 13" Tape and Reel RU-16
AD8309ARU-REEL7 –40°C to +85°C 7" Tape and Reel RU-16
AD8309-EVAL Evaluation Board
Operating Temperature Range . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature Range (Soldering 60 sec) . . . . . . . . +300°C
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may effect device reliability.