ISL12022M-R5421 INTERSIL [Intersil Corporation], ISL12022M-R5421 Datasheet - Page 31

• Manufacturer Part Number: ISL12022M-R5421
• Description: Providing high-performance solutions for every link in the signal chain
• Manufacturer: INTERSIL [Intersil Corporation]

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ISL55210
ISL55211
Device
The ISL55210 is a very wide band, voltage feedback,
fully differential amplifier (FDA) intended for high
dynamic range ADC input interface applications. This
voltage feedback FDA design includes an independent
output common mode voltage control.
Intended for very high dynamic range ADC interface
applications at the lowest quiescent power (115mW),
the ISL55210 offers a 4.0GHz Gain Bandwidth Product
with a very low input noise of 0.85nV/√(Hz). In a
balanced differential I/O configuration, with 2V
output into a 200Ω load configured for a gain of 15dB,
the IM3 terms are <-100dBc through 110MHz. With a
minimum operating gain of 2V/V (6dB), the ISL55210
supports a wide range of higher gains with minimal
BW or SFDR degradation. Its ultra high differential
slew rate of 5,600V/μs ensures clean large signal SFDR
performance or a fast settling step response.
Applications
• Low Power, High Dynamic Range ADC Interface
• Differential Mixer Output Amplifier
• SAW Filter Pre/Post Driver
• Differential Comms-DAC Output Driver
World’s Best SFDR at
Lowest Power ADC Driver
Key Features
• Gain Bandwidth Product ............................................... 4.0HGz
• Input Voltage Noise ..............................................0.85nV/√(Hz)
• Differential Slew Rate ............................................. 5,600V/µs
• 2V
• Supply Voltage Range ............................................3.0V to 4.2V
• Quiescent Power (3.3V supply) ..................................... 115mW
Fully Differential Amplifiers
P-P
, 2-tone IM3 (200Ω) 100MHz ............................... -109dBc
Channels
# of
1
1
Topology
FDA
FDA
V
S
(V)
3
3
Min
V
S
(V)
4.2
4.2
Max
(MHz)
2200
1400
BW
(V/V)
G
MIN
4
2
P-P
(V/μsec)
Slew
Rate
5600
5600
(nV/√Hz)
Noise
0.85
0.85
Fully Differential Amplifiers: ISL55210, ISL55211
105MHz SINGLE TONE
I
S
180mV
(mA)
38.5
38.5
50Ω
Max
Typical Application Circuit
Ultra-low Distortion
Suitable for driving high speed ADCs in 1st and
higher Nyquist zone applications
World Best SFDR at Lowest Power
110
100
Intersil Signal Path Products  2012  www.intersil.com
90
80
70
60
50
40
V
-100
-110
-120
pp
i
-60
-70
-80
-90
0.1µF
90
ADT4-1WT
for -1dBFS
2
0
1:2
(mA)
I
OUT
30
30
IM2 1V
100Ω
100Ω
140
V
Vcm
OS
(mV)
1.2
1.2
P-P
TEST FREQUENCIES CENTER (MHz)
Max
ISL55210 offers the BEST
SFDR-to-Power ratio in the industry
495Ω
495Ω
POWER DISSIPATION (mW)
IM2 2V
+
+3.3V
-
ISL55210
IM2 3V
(µA)
190
Max
10kΩ
90
91
P-P
I
B
(115mW)
35mA
P-P
PD
0.1µF
0.1µF
RR
No
No
In
20log (
500kHz
240
IM3 2V
40.2Ω
40.2Ω
V
V
V
diff
b
i
IM3 3V
33nH
33nH
Out
RR
No
No
180MHz SPAN
)
1
P-P
210Ω
210Ω
= 17.3dB gain
0
0
500MSPS
P-P
290
Headroom
Competition
ISL55210
20pF
20pF
IM3 1V
V+
V-
(V)
1
1
CLK
ISLA112P50
<500mW
V
P-P
12 Bit
diff
2
340
0
0
Shutdown
Yes
Yes
31