AD8331_15 Datasheet, PDF (5/56 Pages) Analog Devices – Ultralow Noise VGAs with Preamplifier and Programmable R

AD8331/AD8332/AD8334
Parameter
Output Signal Range, Postamplifier
Differential
Output Offset Voltage
AD8331
AD8332, AD8334
Output Short-Circuit Current
Harmonic Distortion
AD8331
HD2
HD3
HD2
HD3
AD8332, AD8334
HD2
HD3
HD2
HD3
Input 1 dB Compression Point
Two-Tone Intermodulation Distortion (IMD3)
AD8331
AD8332, AD8334
Output Third-Order Intercept
AD8331
AD8332, AD8334
Channel-to-Channel Crosstalk (AD8332, AD8334)
Overload Recovery
Group Delay Variation
ACCURACY
Absolute Gain Error²
Gain Law Conformance³
Channel-to-Channel Gain Matching
GAIN CONTROL INTERFACE (Pin GAIN)
Gain Scaling Factor
Gain Range
Input Voltage (VGAIN) Range
Input Impedance
Response Time
COMMON-MODE INTERFACE (PIN VCMx)
Input Resistance⁴
Output CM Offset Voltage
Voltage Range
Test Conditions/Comments
RL ≥ 500 Ω, unclamped, either pin
Differential, VGAIN = 0.5 V
Common mode
Differential, 0.05 V ≤ VGAIN ≤ 1.0 V
Common mode
VGAIN = 0.5 V, VOUT = 1 V p-p, HI gain
f = 1 MHz
f = 10 MHz
f = 1 MHz
f = 10 MHz
VGAIN = 0.25 V, VOUT = 1 V p-p, f = 1 MHz to 10 MHz
VGAIN = 0.72 V, VOUT = 1 V p-p, f = 1 MHz
VGAIN = 0.5 V, VOUT = 1 V p-p, f = 10 MHz
VGAIN = 0.72 V, VOUT = 1 V p-p, f = 1 MHz
VGAIN = 0.5 V, VOUT = 1 V p-p, f = 10 MHz
VGAIN = 0.5 V, VOUT = 1 V p-p, f = 1 MHz
VGAIN = 0.5 V, VOUT = 1 V p-p, f = 10 MHz
VGAIN = 0.5 V, VOUT = 1 V p-p, f = 1 MHz
VGAIN = 0.5 V, VOUT = 1 V p-p, f = 10 MHz
VGAIN = 0.5 V, VOUT = 1 V p-p, f = 1 MHz
VGAIN = 1.0 V, VIN = 50 mV p-p/1 V p-p, f = 10 MHz
5 MHz < f < 50 MHz, full gain range
0.05 V < VGAIN < 0.10 V
0.10 V < VGAIN < 0.95 V
0.95 V < VGAIN < 1.0 V
0.1 V < VGAIN < 0.95 V
0.1 V < VGAIN < 0.95 V
0.10 V < VGAIN < 0.95 V
LO gain
HI gain
48 dB gain change to 90% full scale
Current limited to ±1 mA
VCM = 2.5 V
VOUT = 2.0 V p-p
Min
−50
−125
−20
−125
−1
−1
−2
48.5
−125
Typ
VCM ± 1.125
4.5
±5
−25
±5
–25
45
−88
−85
−68
−65
−82
−85
−62
−66
1
−80
−72
−78
−74
38
33
35
32
−98
5
±2
+0.5
±0.3
−1
±0.2
±0.1
50
−4.5 to +43.5
7.5 to 55.5
0 to 1.0
10
500
30
−25
1.5 to 3.5
Max
+50
+100
+20
+100
+2
+1
+1
51.5
+100
Unit ¹
V
V p-p
mV
mV
mV
mV
mA
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBm
dBc
dBc
dBc
dBc
dBm
dBm
dBm
dBm
dB
ns
ns
dB
dB
dB
dB
dB
dB/V
dB
dB
V
MΩ
ns
Ω
mV
V
Rev. G | Page 5 of 56