LT6211_15 Datasheet, PDF (1/18 Pages) Linear Technology – Single/Dual Programmable Supply Current, R-R Output, Current Feedback Amplifiers

LT6210/LT6211
Single/Dual Programmable
Supply Current, R-R Output,
Current Feedback Amplifiers
Features
n _{Programmable Supply Current and Bandwidth:}
10MHz at 300µA per Amplifier up to
200MHz at 6mA per Amplifier
n _{Rail-to-Rail Output:}
0.05V to 2.85V on 3V Single Supply
n _{High Slew Rate: 700V/µs}
n _{High Output Drive:}
±75mA Minimum Output Current
n _{C-Load™ Op Amp Drives All Capacitive Loads}
n _{Low Distortion:}
–70dB HD2 at 1MHz 2V_P-P
–75dB HD3 at 1MHz 2V_P-P
n _{Fast Settling:}
20ns 0.1% Settling for 2V Step
n _{Excellent Video Performance Into 150Ω Load:}
Differential Gain of 0.20%, Differential Phase of 0.10°
n _{Wide Supply Range:}
3V to 12V Single Supply
±1.5V to ±6V Dual Supplies
n _{Small Size:}
Low Profile (1mm) 6-Lead ThinSOT™,
3mm × 3mm × 0.8mm DFN and 10-Lead MSOP Packages
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and C-Load
and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
Description
The LT^®6210/LT6211 are single/dual current feedback
amplifiers with externally programmable supply current
and bandwidth ranging from 10MHz at 300µA per ampli-
fier to 200MHz at 6mA per amplifier. They feature a low
distortion rail-to-rail output stage, 700V/µs slew rate and
a minimum output current drive of 75mA.
The LT6210/LT6211 operate on supplies as low as a single
3V and up to either 12V or ±6V. The I_SET pin allows for the
optimization of quiescent current for specific bandwidth,
distortion or slew rate requirements. Regardless of supply
voltage, the supply current is programmable from just
300µA to 6mA per amplifier with an external resistor or
current source.
The LT6210 is available in the low profile (1mm) 6-lead
TSOT-23 package. The LT6211 is available in the 10-lead
MSOP and the 3mm × 3mm × 0.8mm DFN packages.
Applications
n _Buffers
n _{Video Amplifers}
n _{Cable Drivers}
n _{Mobile Communication}
n _{Low Power/Battery Applications}
Typical Application
Line Driver Configuration for Various Supply Currents
5V
V_IN ³ +
6
1
LT6210
4_–
5
2
R_SET
–5V
R_F
75Ω
75Ω ^CABLE
V_OUT
75Ω
R_G
I_S
6mA
3mA
300µA
R_SET
20k
56k
1M
R_G
887Ω
1.1k
11k
R_F
887Ω
1.1k
11k
R_LOAD
150Ω
150Ω
1k
6210 TA01
Small Signal Response vs Supply Current
9
3
I_S = 3mA
6
I_S = 6mA ⁰
I_S = 300µA
3
–3
0
–6
–3
V_S = ±5V
A_V = 2
T_A = 25°C
V_OUT = 100mV_P-P
–6
0.1
1
10
100
FREQUENCY (MHz)
–9
–12
1000
6210 TA01b
62101fc
1