Datasheet > LTC1668_15

LTC1668_15

更新时间： 2024-09-24 01:11:07

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
24页	887K
描述
12-Bit, 14-Bit, 16-Bit, 50Msps DACs

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中文翻译

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数据手册

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LTC1668_15 数据手册

LTC1666/LTC1667/LTC1668

12-Bit, 14-Bit, 16-Bit,

50Msps DACs

FEATURES

DESCRIPTIO

The LTC^®1666/LTC1667/LTC1668 are 12-/14-/16-bit,

50Msps differential current output DACs implemented on

a high performance BiCMOS process with laser trimmed,

thin-film resistors. The combination of a novel current-

steering architecture and a high performance process

produces DACs with exceptional AC and DC performance.

The LTC1668 is the first 16-bit DAC in the marketplace to

exhibit an SFDR (spurious free dynamic range) of 87dB

for an output signal frequency of 1MHz.

■

50Msps Update Rate

■

Pin Compatible 12-Bit, 14-Bit and 16-Bit Devices

■

High Spectral Purity: 87dB SFDR at 1MHz f_OUT

■

5pV-s Glitch Impulse

■

Differential Current Outputs

■

20ns Settling Time

■

Low Power: 180mW from ±5V Supplies

■

TTL/CMOS (3.3V or 5V) Inputs

■

Small Package: 28-Pin SSOP

Operating from ±5V supplies, the LTC1666/LTC1667/

LTC1668 can be configured to provide full-scale output

currents up to 10mA. The differential current outputs of

theDACsallowsingle-endedortruedifferentialoperation.

The –1V to 1V output compliance of the LTC1666/

LTC1667/LTC1668 allows the outputs to be connected

directly to external resistors to produce a differential out-

putvoltagewithoutdegradingtheconverter’slinearity.Al-

ternatively,theoutputscanbeconnectedtothesumming

junction of a high speed operational amplifier, or to a

transformer.

APPLICATIO S

■

Cellular Base Stations

■

Multicarrier Base Stations

■

Wireless Communication

■

Direct Digital Synthesis (DDS)

■

xDSL Modems

■

Arbitrary Waveform Generation

Automated Test Equipment

■

Instrumentation

The LTC1666/LTC1667/LTC1668 are pin compatible and

are available in a 28-pin SSOP and are fully specified over

the industrial temperature range.

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

TYPICAL APPLICATION

LTC1668, 16-Bit, 50Msps DAC

0.1µF

LTC1668 SFDR vs f_OUTand f_CLOCK

100

LTC1668

REFOUT

2.5V

REFERENCE

5MSPS

SET

0.1µF

REFIN

25MSPS

52.3Ω

OUT A

OUT B

50MSPS

–

16-BIT

HIGH SPEED

DAC

P-P

DIFFERENTIAL

52.3Ω

OUT

–

COMP1

COMP2

LADCOM

0.1µF

AGND DGND CLK

DB15

DB0

DIGITAL AMPLITUDE = 0dBFS

0.1µF

1666/7/8 TA01

0.1

1.0

100

(MHz)

OUT

CLOCK 16-BIT DATA

INPUT INPUT

0.1µF

1666/7/8 G05

–5V

12 3 4 5 6 7...24

中文翻译

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与LTC1668_15相关器件

型号	品牌	获取价格	描述	数据表
LTC1668C	Linear	获取价格	16-Bit, 50Msps DAC
LTC1668CG	Linear	获取价格	16-Bit, 50Msps DAC
LTC1668CG#TRPBF	Linear	获取价格	LTC1668 - 16-Bit, 50Msps DAC; Package: SSOP; Pins: 28; Temperature Range: 0°C to 7
LTC1668I	Linear	获取价格	16-Bit, 50Msps DAC
LTC1668IG	Linear	获取价格	16-Bit, 50Msps DAC
LTC1668IG#PBF	Linear	获取价格	LTC1668 - 16-Bit, 50Msps DAC; Package: SSOP; Pins: 28; Temperature Range: -40°C to
LTC1668IG#TR	Linear	获取价格	LTC1668 - 16-Bit, 50Msps DAC; Package: SSOP; Pins: 28; Temperature Range: -40°C to
LTC1668IG#TRPBF	Linear	获取价格	LTC1668 - 16-Bit, 50Msps DAC; Package: SSOP; Pins: 28; Temperature Range: -40°C to
LTC1669	Linear	获取价格	10-Bit Rail-to-Rail Micropower DAC with I2C Interface
LTC1669	ADI	获取价格	具 I2C 接口的 10 位轨至轨微功率 DAC

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