Datasheet

REV. B
ENABLE VOLTAGE – V
100
0.00001
0.5 2.50.7
SUPPLY CURRENT – mA
0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3
10
1
0.1
0.01
0.001
0.0001
+258C
+858C
–408C
Figure 1. Supply Current vs. Enable Voltage @
T
A
= –40 ° C, +25 ° C and +85 ° C
VLOG
500mV PER
VERTICAL
DIVISION
500ns PER HORIZONTAL
DIVISION
GROUND REFERENCE
5V PER
VERTICAL
DIVISION
ENBL
–13dBV
–33dBV
–53dBV
–73dBV
–93dBV
Figure 2. Power On/Off Response Time with RF Input of
–93 dBV to –13 dBV
VLOG
INPUT
500mV PER
VERTICAL DIVISION
200ns PER HORIZONTAL
DIVISION
GROUND REFERENCE
500mV PER
VERTICAL DIVISION
Figure 3. Large Signal RSSI Pulse Response with
C
L
= 100 pF and R
L
= 50 Ω and 75 Ω (Curves Overlap)
AD8309–Typical Performance Characteristics
–4–
GROUND REFERENCE
100ns PER HORIZONTAL
DIVISION
500mV PER
VERTICAL DIVISION
+10dBm INPUT
LEVEL SHOWN
HERE
VLOG
500mV PER
VERTICAL
DIVISION
Figure 4. RSSI Pulse Response for Inputs Stepped from
Zero to –63 dBV, –43 dBV, –23 dBV, –3 dBV
GROUND REFERENCE
VLOG
INPUT
500mV PER
VERTICAL
DIVISION
100ns PER HORIZONTAL
DIVISION
1V PER VERTICAL
DIVISION
Figure 5. Large Signal RSSI Pulse Response with R
L
= 100 Ω
and C
L
= 33 pF, 100 pF and 330 pF (Curves Overlap)
200mV PER
VERTICAL DIVISION
100ms PER
HORIZONTAL
DIVISION
27pF
3300pF
GROUND REFERENCE
270pF
VLOG
Figure 6. Small Signal AC Response of RSSI Output with
External Filter Capacitance of 27 pF, 270 pF and 3300 pF