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AD8367 Datasheet(Fiches technique) 2 Page - Analog Devices

Numéro de pièce AD8367
Description  500 MHz, Linear-in-dB VGA with AGC Detector
Télécharger  16 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
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REV. 0
–2–
AD8367–SPECIFICATIONS
(VS = 5 V, TA = 25 C, System Impedance ZO = 200
, VMODE = 5 V, f = 10 MHz,
unless otherwise noted.)
Parameter
Conditions
Min
Typ
Max
Unit
OVERALL FUNCTION
Frequency Range
LF
500
MHz
GAIN Range
45
dB
INPUT STAGE
Pins INPT and ICOM
Maximum Input
To Avoid Input Overload
700
mV p-p
Input Resistance
From INPT to ICOM
175
200
225
GAIN CONTROL INTERFACE
Pin GAIN
Scaling Factor
VMODE = 5 V, 50 mV
≤ VGAIN ≤ 950 mV
+20
mV/dB
VMODE = 0 V, 50 mV
≤ V
GAIN
≤ 950 mV
–20
mV/dB
Gain Law Conformance
100 mV
≤ VGAIN ≤ 900 mV
±0.2
dB
Maximum Gain
VGAIN = 0.95 V
+42.5
dB
Minimum Gain
VGAIN = 0.05 V
–2.5
dB
VGAIN Step Response
From 0 dB to 30 dB
300
ns
From 30 dB to 0 dB
300
ns
Small Signal Bandwidth
VGAIN = 0.5 V
5
MHz
OUTPUT STAGE
Pin VOUT
Max Output Voltage Swing
RL = 1 k
4.3
V p-p
RL = 200
3.5
V p-p
Output Source Resistance
Series Resistance of Output Buffer
50
Output Centering Voltage1
VS/2
V
SQUARE LAW DETECTOR
Pin DETO
Output Set Point
354
mV rms
AGC Small Signal Response Time
CAGC
100 pF, 6 dB Gain Step
1
s
POWER INTERFACE
Pins VPSI, VPSO, ICOM, and OCOM
Supply Voltage
2.7
5.5
V
Total Supply Current
ENBL High, Maximum Gain, RL
200
26
30
mA
(Includes Load Current)
Disable Current vs. Temperature
ENBL Low
1.3
1.6
mA
–40
°C ≤ T
A
≤ +85°C
1.8
mA
MODE CONTROL INTERFACE
Pin MODE
Mode LO Threshold
Device in Negative Slope Mode of Operation
1.2
V
Mode HI Threshold
Device in Positive Slope Mode of Operation
1.4
V
ENABLE INTERFACE
Pin ENBL
Enable Threshold
2.5
V
Enable Response Time
Time Delay Following LO to HI Transition
1.5
s
until Device Meets Full Specifications.
Enable Input Bias Current
ENBL at 5 V
27
A
ENBL at 0 V
32
nA




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