AD8309ARU Analog Devices Inc, AD8309ARU Datasheet - Page 4

• Manufacturer Part Number: AD8309ARU
• Description: IC LOGARITHM AMP 100DB 16-TSSOP
• Manufacturer: Analog Devices Inc
• Type: Logarithmic Amplifierr

Specifications of AD8309ARU

• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Rohs Status: RoHS non-compliant
• Applications: Receiver Signal Strength Indication (RSSI)
• No. Of Amplifiers: 1
• No. Of Pins: 16
• Peak Reflow Compatible (260 C): No
• Bandwidth: 500MHz
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD8309–Typical Performance Characteristics
Figure 2. Power On/Off Response Time with RF Input of
–93 dBV to –13 dBV
0.00001
Figure 1. Supply Current vs. Enable Voltage @
T
0.0001
Figure 3. Large Signal RSSI Pulse Response with
C
0.001
A
0.01
L
100
0.1
10
= –40 C, +25 C and +85 C
= 100 pF and R
1
0.5
VERTICAL
500mV PER
DIVISION
500mV PER
VERTICAL DIVISION
VERTICAL
GROUND REFERENCE
5V PER
500mV PER
VERTICAL DIVISION
GROUND REFERENCE
DIVISION
500ns PER HORIZONTAL
VLOG
0.7
+85 C
DIVISION
0.9
ENBL
+25 C
INPUT
1.1
VLOG
L
ENABLE VOLTAGE – V
= 50
1.3
1.5
and 75
–13dBV
–33dBV
–53dBV
–73dBV
–93dBV
200ns PER HORIZONTAL
DIVISION
1.7
–40 C
1.9
(Curves Overlap)
2.1
2.3
2.5
–4–
Figure 5. Large Signal RSSI Pulse Response with R
and C
Figure 6. Small Signal AC Response of RSSI Output with
External Filter Capacitance of 27 pF, 270 pF and 3300 pF
Figure 4. RSSI Pulse Response for Inputs Stepped from
Zero to –63 dBV, –43 dBV, –23 dBV, –3 dBV
L
= 33 pF, 100 pF and 330 pF (Curves Overlap)
LEVEL SHOWN
+10dBm INPUT
GROUND REFERENCE
GROUND REFERENCE
GROUND REFERENCE
100ns PER HORIZONTAL
100ns PER HORIZONTAL
HERE
500mV PER
VERTICAL
200mV PER
VERTICAL DIVISION
DIVISION
VLOG
DIVISION
DIVISION
VLOG
27pF
500mV PER
VERTICAL
DIVISION
VLOG
500mV PER
VERTICAL DIVISION
INPUT
1V PER VERTICAL
DIVISION
3300pF
270pF
100 s PER
HORIZONTAL
DIVISION
L
= 100
REV. B