Datasheet > LT1886

LT1886

更新时间： 2024-11-27 22:51:47

品牌	Logo	应用领域
凌特 - Linear		运算放大器
页数	文件大小	规格书
16页	334K
描述
Dual 700MHz, 200mA Operational Amplifier

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LT1886 数据手册

LT1886

Dual 700MHz, 200mA

Operational Amplifier

DESCRIPTIO

FEATURES

The LT^®1886 is a 200mA minimum output current dual op

amp with outstanding distortion performance. The ampli-

fiersaregain-of-tenstable, butcanbeeasilycompensated

for lower gains. The LT1886 features balanced, high

impedance inputs with 4µA maximum input bias current,

and 4mV maximum input offset voltage. Single supply

applications are easy to implement and have lower total

noise than current feedback amplifier implementations.

■

700MHz Gain Bandwidth

■

±200mA Minimum I_OUT

■

Low Distortion: –72dBc at 1MHz, 4V_P-P, 25Ω, A_V= 2

■

Stable in A_V≥ 10, Simple Compensation for A_V< 10

■

±4.3V Minimum Output Swing, V_S= ±6V, R_L= 25Ω

■

7mA Supply Current per Amplifier

200V/µs Slew Rate

Stable with 1000pF Load

■

6nV/√Hz Input Noise Voltage

2pA/√Hz Input Noise Current

The output drives a 25Ω load to ±4.3V with ±6V supplies.

On ±2.5V supplies the output swings ±1.5V with a 100Ω

load. The amplifier is stable with a 1000pF capacitive

load which makes it useful in buffer and cable driver

applications.

■

4mV Maximum Input Offset Voltage

■

4µA Maximum Input Bias Current

■

400nA Maximum Input Offset Current

■

±4.5V Minimum Input CMR, V_S= ±6V

■

The LT1886 is manufactured on Linear Technology’s

advancedlowvoltagecomplementarybipolarprocessand

is available in a thermally enhanced SO-8 package.

Specified at ±6V, ±2.5V

APPLICATIO S

■

DSL Modems

■

xDSL PCI Cards

■

USB Modems

Line Drivers

■

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

TYPICAL APPLICATIO

Single 12V Supply ADSL Modem Line Driver

12V

ADSL Modem Line Driver Distortion

0.1µF

–60

= 12V

= 10

12.4Ω

1/2 LT1886

f = 200kHz

100Ω LINE

1:2 TRANSFORMER

–70

–80

–

909Ω

10k

20k

HD2

HD3

1:2*

100Ω

1µF

100Ω

–90

909Ω

*COILCRAFT X8390-A

OR EQUIVALENT

–

–100

12.4Ω

10 12 14 16

1886 TA01

0.1µF

1/2 LT1886

LINE VOLTAGE (V

)

P-P

–

1886 TA01a

12 3 4 5 6 7...16

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