AD8314
SPECIFICATIONS
V
S
= 3 V, T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter
OVERALL FUNCTION
Frequency Range
Input Voltage Range
Equivalent Power Range
Logarithmic Slope
Logarithmic Intercept
Equivalent dBm Level
INPUT INTERFACE
DC Resistance to COMM
Inband Input Resistance
Input Capacitance
MAIN OUTPUT
Voltage Range
Minimum Output Voltage
Maximum Output Voltage
3
General Limit
Available Output Current
Response Time
Residual RF (at 2f )
INVERTED OUTPUT
Gain Referred to V_UP
Minimum Output Voltage
Maximum Output Voltage
Available Output Current
Output-Referred Noise
Response Time
Full-Scale Settling Time
SETPOINT INPUT
Voltage Range
Input Resistance
Logarithmic Scale Factor
ENABLE INTERFACE
Logic Level to Enable Power
Input Current when HI
Logic Level to Disable Power
POWER INTERFACE
Supply Voltage
Quiescent Current
Overtemperature
Total Supply Current when Disabled
Overtemperature
1
2
Conditions
To meet all specifications
Internally ac-coupled
52.3 Ω external termination
Main output, V_UP, 100 MHz
Main output, V_UP, 100 MHz
52.3 Ω external termination
Pin RFIN
f = 0.1 GHz
f = 0.1 GHz
Pin V_UP
V_UP connected to VSET
No signal at RFIN, R
L
≥ 10 kΩ
R
L
≥ 10 kΩ
2.7 V ≤ V
S
≤ 5.5 V
Sourcing/sinking
10% to 90%, 10 dB step
f = 0.1 GHz (worst condition)
Pin V_DN
V
DN
= 2.25 V − 2 × V
UP
V
S
≥ 3.3 V
V
S
≥ 3.3 V
Sourcing/sinking
RF input = 2 GHz, –33 dBV, f
NOISE
= 10 kHz
10% to 90%, 10 dB input step
−40 dBm to 0 dBm input step to 95%
Pin VSET
Corresponding to central 40 dB
f = 0.900 GHz
f = 1.900 GHz
Pin ENBL
HI condition, −40°C ≤ T
A
≤ +85°C
2.7 V at ENBL, −40°C ≤ T
A
≤ +85°C
LO condition, −40°C ≤ T
A
≤ +85°C
Pin VPOS
Min
0.1
1.25
−45
18.85
−68
−55
Typ
Max
2.5
224
0
23.35
−56
−43
Unit
GHz
mV rms
dBm
mV/dB
dBV
dBm
kΩ
kΩ
pF
21.3
−62
−49
100
3
2
0.01
0.01
1.9
V
S
− 1.1
1/0.5
0.02
2
V
S
− 1
2/1
70
100
−2
0.05
2.2
6/200
1.05
70
150
1.2
0.05
V
V
V
V
mA
ns
μV
0.01
2.1
4/100
0.1
2.5
V
V
mA/μA
μV/√Hz
ns
ns
V
kΩ
mV/dB
mV/dB
V
μA
V
V
mA
mA
μA
μA
0.15
7
1.2
10
20.7
19.7
V
POS
300
+0.8
5.5
5.7
6.6
95
1.6
20
−0.5
2.7
3.0
2.7
3.0
4.5
4.4
20
40
−40°C ≤ T
A
≤ +85°C
−40°C ≤ T
A
≤ +85°C
For a discussion on operation at higher frequencies, see Applications section.
Mean and standard deviation specifications are available in Table 4.
3
Increased output possible when using an attenuator between V_UP and VSET to raise the slope.
4
Refer to Figure 22 for details.
Rev. B | Page 3 of 20
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