Datasheet > MAX1421

MAX1421

更新时间： 2023-12-20 18:45:50

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
18页	2037K
描述
12位、40Msps、3.3V、低功耗ADC，内置电压基准

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中文翻译

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数据手册

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MAX1421 数据手册

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12-Bit, 40Msps, 3.3V, Low-Power ADC

with Internal Reference

MAX1421

General Description

Features

● Single 3.3V Power Supply

The MAX1421 is a 3.3V, 12-bit analog-to-digital con-

verter (ADC), featuring a fully-differential input, pipelined,

12-stage ADC architecture with wideband track-and-hold

(T/H) and digital error correction incorporating a fully-dif-

ferential signal path. The MAX1421 is optimized for low-

power, high-dynamic performance applications in imaging

and digital communications. The converter operates

from a single 3.3V supply, consuming only 188mW while

delivering a typical signal-to-noise ratio (SNR) of 66dB at

an input frequency of 15MHz and a sampling frequency

of 40Msps. The fully-differential input stage has a small

signal -3dB bandwidth of 400MHz and may be operated

with single-ended inputs.

● 67dB SNR at f = 5MHz

● 66dB SNR at f = 15MHz

● Internal, 2.048V Precision Bandgap Reference

● Differential, Wideband Input T/H Amplifier

● Power-Down Modes

• 180mW (Reference Shutdown Mode)

• 10µW (Shutdown Mode)

● Space-Saving 48-Pin LQFP Package

Ordering Information

PIN-

PACKAGE

PKG

An internal 2.048V precision bandgap reference sets the

full-scale range of the ADC. A flexible reference structure

accommodates an internal or externally applied buff-

ered or unbuffered reference for applications requiring

increased accuracy or a different input voltage range.

PART*

TEMP RANGE

CODE

C48-2

MAX1421CCM

0°C to +70°C

48 LQFP

MAX1421ECM -40°C to +85°C

MAX1421ECM+ -40°C to +85°C

In addition to low operating power, the MAX1421 features

two power-down modes, a reference power-down and a

shutdown mode. In reference power-down, the internal

bandgap reference is deactivated, resulting in a typical

2mA supply current reduction. For idle periods, a full

shutdown mode is available to maximize power savings.

+Denotes lead-free package.

Pin Conﬁguration

The MAX1421 provides parallel, offset binary, CMOS-

compatible three-state outputs.

AGND

36 D9

The MAX1421 is available in a 7mm x 7mm, 48-pin LQFP

package, and is specified over the commercial (0°C to

+70°C) and the extended industrial (-40°C to +85°C) tem-

perature ranges.

35 D8

34 D7

33 D6

32 DV

31 DV

AGND

INP

Pin-compatible higher- and lower-speed versions of

the MAX1421 are also available. Please refer to the

MAX1420 data sheet for a frequency of 60Msps and the

MAX1422 data sheet for a frequency of 20Msps.

MAX1421

INN

DGND

AGND

Applications

AGND

● Medical Ultrasound Imaging

● CCD Pixel Processing

● Data Acquisition

● Radar

● IF and Baseband Digitization

48-LQFP

Functional Diagram appears at end of data sheet.

19-1900; Rev 2; 11/22

12 3 4 5 6 7...18

中文翻译

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与MAX1421相关器件

型号	品牌	获取价格	描述	数据表
MAX1421_V01	MAXIM	获取价格	12-Bit, 40Msps, 3.3V, Low-Power ADC with Internal Reference
MAX1421CCM	MAXIM	获取价格	12-Bit, 40Msps, +3.3V, Low-Power ADC with Internal Reference
MAX1421CCM+TD	MAXIM	获取价格	ADC, Proprietary Method, 12-Bit, 1 Func, 1 Channel, Parallel, Word Access, PQFP48, 7 X 7 M
MAX1421CCM-D	MAXIM	获取价格	ADC, Proprietary Method, 12-Bit, 1 Func, 1 Channel, Parallel, Word Access, PQFP48, 7 X 7 M
MAX1421CCM-T	MAXIM	获取价格	ADC, Proprietary Method, 12-Bit, 1 Func, 1 Channel, Parallel, Word Access, PQFP48, 7 X 7 M
MAX1421CCM-TD	MAXIM	获取价格	ADC, Proprietary Method, 12-Bit, 1 Func, 1 Channel, Parallel, Word Access, PQFP48, 7 X 7 M
MAX1421ECM	MAXIM	获取价格	12-Bit, 40Msps, +3.3V, Low-Power ADC with Internal Reference
MAX1421ECM+	MAXIM	获取价格	12-Bit, 40Msps, 3.3V, Low-Power ADC with Internal Reference
MAX1421ECM+TD	MAXIM	获取价格	ADC, Proprietary Method, 12-Bit, 1 Func, 1 Channel, Parallel, Word Access, PQFP48, 7 X 7 M
MAX1421ECM-TD	MAXIM	获取价格	ADC, Proprietary Method, 12-Bit, 1 Func, 1 Channel, Parallel, Word Access, PQFP48, 7 X 7 M

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