Datasheet

AD8368
Rev. B | Page 4 of 20
V
S
= 5 V, T
A
= 25°C, system impedance Z
0
= 50 Ω, V
MODE
= 5 V, RF input = 140 MHz, unless otherwise noted.
Table 2.
Parameter Min Typ Max Unit Conditions
SQUARE LAW DETECTOR (DETI, DETO)
Output Setpoint −11 dBm OUTP connected to DETI
DETI DC Bias Level to ICOM V
S
/2 V
DETI Impedance 710 Ω
0.6 pF
DETO Output Range
1
0.1 V
S
/2 V
AGC Step Response 30 μs For −6 dB input power step (C
DETO
= 1 nF)
MODE CONTROL INTERFACE (MODE)
MODE Threshold 3.5 V
MODE Input Bias Current 50 μA
POWER INTERFACE (VPSI, VPSO)
Supply Voltage 4.5 5 5.5 V
Total Supply Current 60 mA ENBL high
Disable Current 2 mA ENBL low
ENABLE INTERFACE (ENBL)
Enable Threshold 2.5 V
Enable Response Time 1.5 μs
Time delay following off-to-on transition until output
reaches 90% of final value
3 μs
Time delay following on-to-off transition until supply
current is less than 5 mA
ENBL Input Bias Current 150 μA V
ENBL
= 5 V
1
Refer to section. AGC Operation