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LT1217

Low Power 10MHz

Current Feedback Amplifier

DESCRIPTIO

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FEATURE

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APPLICATI

The LT1217 is a 10MHz current feedback amplifier with DC

characteristics better than many voltage feedback ampli-

fiers. This versatile amplifier is fast, 280ns settling to 0.1%

for a 10V step thanks to its 500V/

µs slew rate. The LT1217

is manufactured on Linear Technology’s proprietary

complementary bipolar process resulting in a low 1mA

quiescent current. To reduce power dissipation further,

the LT1217 can be turned off, eliminating the load current

and dropping the supply current to 350

µA.

The LT1217 is excellent for driving cables and other low

impedance loads thanks to a minimum output drive cur-

rent of 50mA. Operating on any supplies from

±5Vto ±15V

allows the LT1217 to be used in almost any system. Like

other current feedback amplifiers, the LT1217 has high

gain bandwidth at high gains. The bandwidth is over 1MHz

at a gain of 100.

The LT1217 comes in the industry standard pinout and

can upgrade the performance of many older products.

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1mA Quiescent Current

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50mA Output Current (Minimum)

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10MHz Bandwidth

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500V/

µs Slew Rate

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280ns Settling Time to 0.1%

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Wide Supply Range,

±5V to ±15V

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1mV Input Offset Voltage

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100nA Input Bias Current

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100M

Ω Input Resistance

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Video Amplifiers

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Buffers

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IF and RF Amplification

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Cable Drivers

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8, 10, 12-Bit Data Acquisition Systems

APPLICATI

TYPICAL

Cable Driver

Voltage Gain vs Frequency

FREQUENCY (Hz)

100k

–20

10

40

50

60

1M

10M

100M

LT1217 • TA02

–10

0

20

30

3k

3k

75

Ω

75

Ω

CABLE

75

Ω

LT1217

LT1217 • TA01

AT AMPLIFIER OUTPUT.

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