Datasheet

AD8331/AD8332/AD8334
Rev. G | Page 4 of 56
SPECIFICATIONS
T
A
= 25°C, V
S
= 5 V, R
L
= 500 Ω, R
S
= R
IN
= 50 Ω, R
IZ
= 280 Ω, C
SH
= 22 pF, f = 10 MHz, R
CLMP
= ∞, C
L
= 1 pF, VCM pin floating,
−4.5 dB to +43.5 dB gain (HILO = LO), and differential output voltage, unless otherwise specified.
Table 1.
Parameter Test Conditions/Comments Min Typ Max Unit
1
LNA CHARACTERISTICS
Gain Single-ended input to differential output 19 dB
Input to output (single-ended) 13 dB
Input Voltage Range AC-coupled ±275 mV
Input Resistance R
IZ
= 280 Ω 50 Ω
R
IZ
= 412 Ω 75 Ω
R
IZ
= 562 Ω 100 Ω
R
IZ
= 1.13 kΩ 200 Ω
R
IZ
= ∞ 6 kΩ
Input Capacitance 13 pF
Output Impedance Single-ended, either output 5 Ω
−3 dB Small Signal Bandwidth V
OUT
= 0.2 V p-p 130 MHz
Slew Rate 650 V/μs
Input Voltage Noise R
S
= 0 Ω, HI or LO gain, R
IZ
= ∞, f = 5 MHz 0.74 nV/√Hz
Input Current Noise R
IZ
= ∞, HI or LO gain, f = 5 MHz 2.5 pA/√Hz
Noise Figure f = 10 MHz, LOP output
Active Termination Match R
S
= R
IN
= 50 Ω 3.7 dB
Unterminated R
S
= 50 Ω, R
IZ
= ∞ 2.5 dB
Harmonic Distortion at LOP1 or LOP2 V
OUT
= 0.5 V p-p, single-ended, f = 10 MHz
HD2 −56 dBc
HD3 −70 dBc
Output Short-Circuit Current Pin LON, Pin LOP 165 mA
LNA AND VGA CHARACTERISTICS
−3 dB Small Signal Bandwidth V
OUT
= 0.2 V p-p
AD8331 120 MHz
AD8332, AD8334 100 MHz
−3 dB Large Signal Bandwidth V
OUT
= 2 V p-p
AD8331 110 MHz
AD8332, AD8334 90 MHz
Slew Rate
AD8331 LO gain 300 V/μs
HI gain 1200 V/μs
AD8332, AD8334 LO gain 275 V/μs
HI gain 1100 V/μs
Input Voltage Noise R
S
= 0 Ω, HI or LO gain, R
IZ
= ∞, f = 5 MHz 0.82 nV/√Hz
Noise Figure V
GAIN
= 1.0 V
Active Termination Match R
S
= R
IN
= 50 Ω, f = 10 MHz, measured 4.15 dB
R
S
= R
IN
= 200 Ω, f = 5 MHz, simulated 2.0 dB
Unterminated R
S
= 50 Ω, R
IZ
= ∞, f = 10 MHz, measured 2.5 dB
R
S
= 200 Ω, R
IZ
= ∞, f = 5 MHz, simulated 1.0 dB
Output-Referred Noise
AD8331 V
GAIN
= 0.5 V, LO gain 48 nV/√Hz
V
GAIN
= 0.5 V, HI gain 178 nV/√Hz
AD8332, AD8334 V
GAIN
= 0.5 V, LO gain 40 nV/√Hz
V
GAIN
= 0.5 V, HI gain 150 nV/√Hz
Output Impedance, Postamplifier DC to 1 MHz 1 Ω