AD8307
SPECIFICATIONS
VS = 5 V, TA = 25°C, RL ≥ 1 MΩ, unless otherwise noted.
Table 1.
Parameter
Conditions
Min
Typ
Max
Unit
GENERAL CHARACTERISTICS
Input Range (±3 dB Error)
Input Range (±± dB Error)
Logarithmic Conformance
From noise floor to maximum input
From noise floor to maximum input
f ≤ ±00 MHz, central 80 dB
f = 500 MHz, central 75 dB
Unadjusted±
92
88
±0.3
±0.5
25
dB
dB
dB
dB
mV/dB
mV/dB
μV
dBm
dBm
nV/√Hz
dBm
kΩ
±±
Logarithmic Slope
vs. Temperature
Logarithmic Intercept
23
23
27
27
Sine amplitude, unadjusted2
Equivalent sine power in 50 Ω
20
−84
−87
−88
−77
−76
vs. Temperature
Input Noise Spectral Density
Operating Noise Floor
Output Resistance
Internal Load Capacitance
Response Time
Inputs shorted
RSOURCE = 50 Ω/2
Pin 4 to ground
±.5
−78
±2.5
3.5
±0
±5
pF
ns
Small signal, ±0% to 90%,
0 mV to±00 mV, CL = 2 pF
Large signal, ±0% to 90%,
0 V to 2.4 V, CL = 2 pF
400
500
ns
Upper Usable Frequency3
Lower Usable Frequency
AMPLIFIER CELL CHARACTERISTICS
Cell Bandwidth
500
±0
MHz
Hz
AC-coupled input
−3 dB
900
±4.3
MHz
dB
Cell Gain
INPUT CHARACTERISTICS
DC Common-Mode Voltage
Common-Mode Range
DC Input Offset Voltage4
AC-coupled input
Either input (small signal)
RSOURCE ≤ 50 Ω
Drift
Differential
3.2
±.6
50
0.8
±.±
±.4
±0
V
V
−0.3
VS − ±
500
μV
μV/°C
kΩ
pF
μA
Incremental Input Resistance
Input Capacitance
Bias Current
Either pin to ground
Either input
25
POWER INTERFACES
Supply Voltage
Supply Current
2.7
5.5
±0
750
V
mA
μA
VENB ≥ 2 V
VENB ≤ ± V
8
±50
Disabled
± This can be adjusted downward by adding a shunt resistor from the output to ground. A 50 kΩ resistor reduces the nominal slope to 20 mV/dB.
2 This can be adjusted in either direction by a voltage applied to Pin 5, with a scale factor of 8 dB/V.
3 See the Operation Above 500 MHz section.
4 Normally nulled automatically by internal offset correction loop. May be manually nulled by a voltage applied between Pin 3 and ground; see the
Applications Information section.
Rev. C | Page 3 of 24
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