1

LT1223

100MHz Current

Feedback Amplifier

DESCRIPTIO

S

FEATURE

s

s

1000V/

µs Slew Rate

s

Wide Supply Range:

±5V to ±15V

s

1mV Input Offset Voltage

s

1

µA Input Bias Current

s

5M

Ω Input Resistance

s

75ns Settling Time to 0.1%

s

50mA Output Current

s

6mA Quiescent Current

S

APPLICATI

s

Video Amplifiers

s

Buffers

s

IF and RF Amplification

s

Cable Drivers

s

8-, 10-, 12-Bit Data Acquisition Systems

The LT1223 is a 100MHz current feedback amplifier with

very good DC characteristics. The LT1223’s high slew

rate, 1000V/

µs,widesupplyrange,±15V,andlargeoutput

drive,

±50mA, make it ideal for driving analog signals over

double- terminated cables. The current feedback amplifier

has high gain bandwidth at high gains, unlike conventional

op amps.

The LT1223 comes in the industry standard pinout and

can upgrade the performance of many older products.

The LT1223 is manufactured on Linear Technology’s

proprietary complementary bipolar process.

Video Cable Driver

Voltage Gain vs Frequency

APPLICATI

TYPICAL

Ω

IN

V

OUT

V

1k

1k

75

75

CABLE

Ω

75

Ω

+

–

LT1223

LT1223 • TA02

A = 1 +

V

AT AMPLIFIER OUTPUT.

6dB LESS AT V

.

OUT

FREQUENCY (Hz)

100k

–20

–10

10

20

50

60

10M

100M

1G

LT1223 • TPC01

1M

0

30

40

100MHz GAIN

BANDWIDTH

1k

+

–