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Data Sheet
AD8324
Rev. B | Page 3 of 16
SPECIFICATIONS
TA = 25°C, VCC = 3.3 V, RL = RIN = 75 , VIN (differential) = 27.5 dBmV, unless otherwise noted. The AD8324 is characterized using a 1:1 transforme
r1 at the device output.
Table 1.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
Specified AC Voltage
Output = 61 dBmV, maximum gain
27.5
dBmV
Input Resistance
Single-ended input
550
Ω
Differential input
1100
Ω
Input Capacitance
2
pF
GAIN CONTROL INTERFACE
Voltage Gain Range
58
59
60
dB
Maximum Gain
Gain code = 60 decimal code
32.5
33.5
34.5
dB
Minimum Gain
Gain code = 1 decimal code
–26.5
–25.5
–24.5
dB
0.6
1.0
1.4
dB/LSB
Output Step Size Temperature Coefficient
TA = –40°C to +85°C
±0.004
dB/°C
OUTPUT CHARACTERISTICS
Bandwidth (–3 dB)
All gain codes (1 decimal code to 60 decimal
codes)
100
MHz
Bandwidth Roll-Off
f = 65 MHz
1.7
dB
Maximum gain, f = 10 MHz, output referred
19.6
21
dBm
Minimum gain, f = 10 MHz, input referred
2.1
3.7
dBm
Maximum Gain
f = 10 MHz
157
166
nV/√Hz
Minimum Gain
f = 10 MHz
1.3
1.5
nV/√Hz
Transmit Disable
f = 10 MHz
1.1
1.2
nV/√Hz
Maximum Gain
f = 10 MHz
15.5
16.0
dB
Differential Output Impedance
Transmit enable and transmit disable
Ω
OVERALL PERFORMANCE
Second-Order Harmonic Distorti
on5, 3f = 33 MHz, VOUT = 61 dBmV at maximum gain
–66
–60
dBc
f = 65 MHz, VOUT = 61 dBmV at maximum gain
–58
–53
dBc
Third-Order Harmonic Distortion (SFD
R)5, 3f = 21 MHz, VOUT = 61 dBmV at maximum gain
–59
–57.5
dBc
f = 65 MHz, VOUT = 61 dBmV at maximum gain
–54
–52.5
dBc
Adjacent Power Channel Ratio (APCR
)2, 6–61
–58
dBc
Isolation (Transmit Disable
)2Maximum gain, f = 65 MHz
–75
–70
dB
POWER CONTROL
Transmit Enable Settling Time
Maximum gain, VIN = 0
2.5
s
Transmit Disable Settling Time
Maximum gain, VIN = 0
3.8
s
Output Switching Transient
s3Equivalent output = 31 dBmV
2.5
6
mV p-p
Equivalent output = 61 dBmV
27
71
mV p-p
Output Settling
Due to Gain Change
Minimum gain to maximum gain
60
ns
Due to Input Step Change
Maximum gain, VIN = 27.5 dBmV
30
ns