1

LT1207

Dual 250mA/60MHz

Current Feedback Amplifier

S

FEATURE

s

250mA Minimum Output Drive Current

s

s

900V/

s

s

0.17

s

High Input Impedance: 10M

Ω

s

s

APPLICATIO S

s

ADSL/HDSL Drivers

s

Video Amplifiers

s

Cable Drivers

s

RGB Amplifiers

s

Test Equipment Amplifiers

s

Buffers

The LT

current feedback amplifier. Like the LT1206, each CFA in

the dual has excellent video characteristics: 60MHz band-

width, 250mA minimum output drive current, 400V/

µs

minimum slew rate, low differential gain (0.02% typ) and

low differential phase (0.17

° typ). The LT1207 includes a

pin for an optional compensation network which stabi-

lizes the amplifier for heavy capacitive loads. Both ampli-

fiers have thermal and current limit circuits which protect

against fault conditions. ThesecapabilitiesmaketheLT1207

well suited for driving difficult loads such as cables in video

or digital communication systems.

Operation is fully specified from

±5V to ±15V supplies.

Supply current is typically 20mA per amplifier. Two

micropower shutdown controls place each amplifier in a

high impedance low current mode, dropping supply

current to 200

µA per amplifier. For reduced bandwidth

applications, supply current can be lowered by adding a

resistor in series with the Shutdown pin.

The LT1207 is manufactured on Linear Technology's

complementary bipolar process and is available in a low

thermal resistance 16-lead SO package.

, LTC and LT are registered trademarks of Linear Technology Corporation.

DESCRIPTIO

HDSL Driver

–

+

1/2 LT1207

+

–

240

Ω

720

Ω

720

Ω

720

Ω

15k

15k

+

0.1

µF*

2.2

µF**

5V

0.1

µF*

2.2

µF**

–5V

62

Ω

62

Ω

L1

1207 • TA01

1/2 LT1207

SHDN A

SHDN B

CERAMIC

TANTALUM

L1 = TRANSPOWER SMPT–308

OR SIMILAR DEVICE

*

**