Datasheet > ADC14L040

ADC14L040

更新时间： 2024-11-29 02:53:35

品牌	Logo	应用领域
美国国家半导体 - NSC		转换器
页数	文件大小	规格书
23页	910K
描述
14-Bit, 40 MSPS, 235 mW A/D Converter

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ADC14L040 数据手册

March 2006

ADC14L040

14-Bit, 40 MSPS, 235 mW A/D Converter

General Description

Features

n Single +3.3V supply operation

n Internal sample-and-hold

n Internal reference

The ADC14L040 is a low power monolithic CMOS analog-

to-digital converter capable of converting analog input sig-

nals into 14-bit digital words at 40 Megasamples per second

(MSPS). This converter uses a differential, pipeline architec-

ture with digital error correction and an on-chip sample-and-

hold circuit to minimize power consumption while providing

excellent dynamic performance and a 150 MHz Full Power

Bandwidth. Operating on a single +3.3V power supply, the

ADC14L040 achieves 11.9 effective bits at nyquist and con-

sumes just 235 mW at 40 MSPS . The Power Down feature

reduces power consumption to 15 mW.

n Outputs 2.4V to 3.6V compatible

n Duty Cycle Stabilizer

n Power down mode

Key Specifications

n Resolution

n DNL

14 Bits

0.5 LSB (typ)

74 dB (typ)

90 dB (typ)

7 Clock Cycles

The differential inputs provide a full scale differential input

swing equal to 2 times V_REFwith the possibility of a single-

ended input. Full use of the differential input is recom-

mended for optimum performance. Duty cycle stabilization

and output data format are selectable using a quad state

function pin. The output data can be set for offset binary or

two’s complement.

n SNR (f_IN= 10 MHz)

n SFDR (f_IN= 10 MHz)

n Data Latency

n Power Consumption

n -- Operating

235 mW (typ)

15 mW (typ)

n -- Power Down Mode

To ease interfacing to lower voltage systems, the digital

output driver power pins of the ADC14L040 can be con-

nected to a separate supply voltage in the range of 2.4V to

the analog supply voltage.

Applications

n Medical Imaging

n Instrumentation

n Communications

n Digital Video

This device is available in the 32-lead LQFP package and

will operate over the industrial temperature range of −40˚C to

+85˚C. An evaluation board is available to ease the evalua-

tion process.

Connection Diagram

20146501

DS201465

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