AD8331 Analog Devices, AD8331 Datasheet - Page 4

• Manufacturer Part Number: AD8331
• Description: Ultralow Noise VGAs with Preamplifier and Programmable RIN
• Manufacturer: Analog Devices

AD8331/AD8332
Parameter
ACCURACY
GAIN CONTROL INTERFACE
(Pin GAIN)
COMMON-MODE INTERFACE
(Pin VCMn)
ENABLE INTERFACE
(Pins ENB, ENBL, ENBV)
HILO GAIN RANGE INTERFACE
(Pin HILO)
1
2
3
All dBm values are referred to 50 Ω, unless otherwise noted.
Conformance to theoretical gain expression (see Equation 1).
Conformance to best fit dB linear curve.
Harmonic Distortion
Input 1 dB Compression Point
Two-Tone Intermodulation
Distortion (IMD3)
Output Third Order Intercept
Channel-to-Channel Crosstalk
(AD8332)
Overload Recovery
Group Delay Variation
Absolute Gain Error
Gain Law Conformance
Channel-to-Channel Gain Matching
Gain Scaling Factor
Gain Range
Input Voltage (V
Input Impedance
Response Time
Input Resistance
Output CM Offset Voltage
Voltage Range
Logic Level to Enable Power
Logic Level to Disable Power
Input Resistance
Power-Up Response Time
Logic Level to Select HI Gain Range
Logic Level to Select LO Gain Range
Input Resistance
HD2
HD3
HD2
HD3
GAIN
) Range
2
3
Conditions
V
f = 1 MHz
f = 10 MHz
V
V
V
V
V
V
V
V
f = 10 MHz
5 MHz < f < 50 MHz, Full Gain Range
0.05 V < V
0.10 V < V
0.95 V < V
0.1 V < V
0.1 V < V
0.10 V < V
LO Gain
HI Gain
48 dB Gain Change to 90% Full Scale
Current Limited to ±1 mA
V
V
Pin ENB
Pin ENBL
Pin ENBV
V
V
GAIN
GAIN
GAIN
GAIN
GAIN
GAIN
GAIN
GAIN
IN
CM
OUT
INH
INH
= 50 mV p-p/1 V p-p,
= 2.5 V
= 30 mV p-p
= 150 mV p-p
= 2.0 V p-p
= 0.5 V, V
= 0.25 V, V
= 0.72 V, V
= 0.5 V, V
= 0.5 V, V
= 0.5 V, V
= 0.5 V, V
= 1.0 V,
GAIN
GAIN
GAIN
GAIN
GAIN
GAIN
< 0.95 V
< 0.95 V
< 0.10 V
< 0.95 V
< 1.0 V
< 0.95 V
OUT
OUT
OUT
OUT
OUT
OUT
OUT
Rev. C | Page 4 of 32
= 1 V p-p
= 1 V p-p, f = 10 MHz
= 1 V p-p, f = 1 MHz
= 1 V p-p, f = 10 MHz
= 1 V p-p, f = 1 MHz
= 1 V p-p, f = 1 MHz–10 MHz
= 1 V p-p, f = 1 MHz
Min
–125
2.25
2.25
–1
–1
–2
0
0
–4.5 to +43.5
+7.5 to +55.5
1.5 to 3.5
0 to 1.0
+0.5
±0.3
±0.2
±0.1
Typ
750
300
–88
–85
–68
–65
–80
–72
–84
–25
38
33
±2
–1
50
10
30
25
40
70
50
7
5
4
Max
+100
1.0
1.0
+2
+1
+1
5
5
Unit
dBm
dBm
dBm
dB/V
dBc
dBc
dBc
dBc
dBc
dBc
MΩ
mV
kΩ
kΩ
kΩ
ms
kΩ
dB
dB
dB
dB
dB
dB
dB
dB
ns
ns
ns
µs
Ω
V
V
V
V
V
V
1