MAX1438B

更新时间： 2024-11-19 05:49:03

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
21页	1249K
描述
Octal, 12-Bit, 64Msps, 1.8V ADC with Serial LVDS Outputs

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MAX1438B 数据手册

19-4630; Rev 0; 7/09

Octal, 12-Bit, 64Msps, 1.8V ADC

with Serial LVDS Outputs

MAX1438B

General Description

Features

The MAX1438B octal, 12-bit analog-to-digital converter

(ADC) features fully differential inputs, a pipelined

architecture, and digital error correction incorporating a

fully differential signal path. This ADC is optimized for

low-power and high-dynamic performance in medical

imaging instrumentation and digital communications

applications. The MAX1438B operates from a 1.8V sin-

gle supply and consumes only 913mW (114mW per

channel) while delivering a 69.9dB (typ) signal-to-noise

ratio (SNR) at a 5.3MHz input frequency. In addition to

low operating power, the MAX1438B features a low-

power standby mode for idle periods.

♦ Excellent Dynamic Performance

69.9dB SNR at 5.3MHz

94dBc SFDR at 5.3MHz

♦ Ultra-Low Power

114mW per Channel (Normal Operation)

♦ Serial LVDS Outputs

♦ Pin-Selectable LVDS/SLVS (Scalable Low-Voltage

Signal) Mode

♦ LVDS Outputs Support Up to 30in FR4 Backplane

An internal 1.24V precision bandgap reference sets the

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

ture allows the use of an external reference for applica-

tions requiring increased accuracy or a different input

voltage range. The reference architecture is optimized

for low noise.

Connections

♦ Test Mode for Digital Signal Integrity

♦ Fully Differential Analog Inputs

♦ Wide Differential Input Voltage Range (1.4V

)

P-P

A single-ended clock controls the data-conversion

process. An internal duty-cycle equalizer compensates

for wide variations in clock duty cycle. An on-chip

phase-locked loop (PLL) generates the high-speed ser-

ial low-voltage differential signal (LVDS) clock.

♦ On-Chip 1.24V Precision Bandgap Reference

♦ Clock Duty-Cycle Equalizer

♦ Compact, 68-Pin Thin QFN Package with Exposed

Pad

The MAX1438B has self-aligned serial LVDS outputs for

data, clock, and frame-alignment signals. The output

data is presented in two’s-complement format.

♦ Evaluation Kit Available (Order MAX1437BEVKIT)

The MAX1438B offers a maximum sample rate of

64Msps. This device is available in a small, 10mm x

10mm x 0.8mm, 68-pin thin QFN package with exposed

pad and is specified for the extended industrial (-40°C

to +85°C) temperature range.

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAX1438BETK+

-40°C to +85°C

68 Thin QFN-EP*

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

Applications

Ultrasound and Medical Imaging

Instrumentation

Multichannel Communications

Pin Configuration appears at end of data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...21

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与MAX1438B相关器件

型号	品牌	获取价格	描述	数据表
MAX1438BETK+	MAXIM	获取价格	Octal, 12-Bit, 64Msps, 1.8V ADC with Serial LVDS Outputs
MAX1438BETK+T	MAXIM	获取价格	ADC, Proprietary Method, 12-Bit, 1 Func, 8 Channel, Serial, Parallel, Word Access, 10 X 10
MAX1438ECQ+D	MAXIM	获取价格	Low-Voltage and Low-Power Operation
MAX1438ECQ-TD	MAXIM	获取价格	ADC, Proprietary Method, 12-Bit, 1 Func, 8 Channel, Serial Access, 14 X 14 MM, 1 MM HEIGHT
MAX1438EVKIT	MAXIM	获取价格	Low-Voltage and Low-Power Operation
MAX144	MAXIM	获取价格	+2.7V.Low-Power.12-Bit Serial ADCs in 8-Pin SO[MAX1240/MAX1241/MAX1240ACPA/MAX1240ACSA/MAX
MAX144	ADI	获取价格	+2.7V、低功耗、2通道、108ksps、串行12位ADC，8引脚μMAX封装
MAX144_05	MAXIM	获取价格	+2.7V, Low-Power, 2-Channel, 108ksps, Serial
MAX1441	MAXIM	获取价格	Automotive, Two-Channel Proximity and Touch Sensor
MAX1441GUP/V+	MAXIM	获取价格	Automotive, Two-Channel Proximity and Touch Sensor

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