Datasheet > LT1022

LT1022

更新时间： 2024-11-23 14:57:59

品牌	Logo	应用领域
亚德诺 - ADI		放大器运算放大器
页数	文件大小	规格书
12页	160K
描述
高速、精准、JFET 输入运算放大器

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LT1022 数据手册

LT1022

High Speed, Precision

JFET Input Operational Amplifier

FEATURES

DESCRIPTIO

The LT^®1022 JFET input operational amplifier combines

high speed and precision performance.

■

Guaranteed Slew Rate: 23V/µs Min

■

Guaranteed Offset Voltage: 250µV Max

– 55°C to 125°C: 750µV Max

A 26V/µs slew rate and 8.5MHz gain-bandwidth product

are simultaneously achieved with offset voltage of

typically 80µV, 1.5µV/°C drift, bias currents of 50pA at

70°C, 500pA at 125°C. The output delivers 20mA of load

current without gain degradation.

■

Guaranteed Drift: 5µV/°C Max

■

Guaranteed Bias Current:

70°C, 180pA Max

125°C, 4nA Max

■

Gain-Bandwidth Product: 8.5MHz Typ

■

The 250µV maximum offset voltage specification

represents less than 1/2 least significant bit error in a

14-bit, 10V system.

Settling Time to 0.05% (10V Step): 0.9µs Typ

APPLICATIO S

The LT1022A meets or exceeds all OP-16A and OP-16E

specifications. It is faster and more accurate without

stability problems at cold temperatures.

■

Fast D/A Output Amplifiers (12, 14, 16 Bits)

■

High Speed Instrumentation

■

Fast, Precision Sample and Hold

The LT1022 can be used as the output amplifier for 12-bit

current output D/A converters, as shown below.

■

Voltage-to-Frequency Converters

■

Logarithmic Amplifiers

For a more accurate, lower power dissipation, but slower

JFET input op amp, please refer to the LT1055 data sheet.

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

TYPICAL APPLICATIO

12-Bit Voltage Output D/A Converter

Large-Signal Response

15V

–

0mA TO 2mA

OR 4mA

OUTPUT

0V TO 10V

LT1022

12-BIT CURRENT OUTPUT D/A

CONVERTER (e.g., 6012, 565 OR DAC-80)

–15V

A_V= 1

_L= 100pF

_A= 25°C

_S= ±15V

0.5µs/DIV

C = 15pF TO 33pF

SETTLING TIME TO 2mV (0.8 LSB) = 1.5µs TO 2µs

LT1022 • TA01

1022fa

12 3 4 5 6 7...12

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