Datasheet > MAX125

MAX125

更新时间： 2024-11-25 14:57:43

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
15页	374K
描述
2x4通道、同步采样、14位DAS

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数据手册

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MAX125 数据手册

19-1319ꢁ Rev 3ꢁ ꢀ/08

2x4-Channel, Simultaneous-Sampling

14-Bit DAS

5/MAX126

General Description

Features

The MAX125/MAX126 are high-speed, multichannel,

14-bit data-acquisition systems (DAS) with simultaneous

track/holds (T/Hs). These devices contain a 14-bit, 3µs,

successive-approximation analog-to-digital converter

(ADC), a +2.5V reference, a buffered reference input,

and a bank of four simultaneous-sampling T/H ampli-

fiers that preserve the relative phase information of the

sampled inputs. The MAX125/MAX126 have two multi-

plexed inputs for each T/H, allowing a total of eight

inputs. In addition, the converter is overvoltage tolerant

to 1ꢀVꢁ a fault condition on any channel will not harm

the IC. Available input ranges are 5V (MAX125) and

2.5V (MAX126).

♦ Four Simultaneous-Sampling T/H Amplifiers with

Two Multiplexed Inputs (eight single-ended inputs

total)

♦ 3µs Conversion Time per Channel

♦ Throughput: 250ksps (1 channel)

142ksps (2 channels)

100ksps (3 channels)

76ksps (4 channels)

♦ Input Range: 5ꢀ (MAꢁ125)

2ꢂ5ꢀ (MAꢁ126)

♦ Fault-Protected Input Multiplexer ( 17ꢀ)

An on-board sequencer converts one to four channels

per CONVST pulse. In the default mode, one T/H output

(CH1A) is converted. An interrupt signal (INT) is provided

after the last conversion is complete. Convert two,

three, or four channels by reprogramming the

MAX125/MAX126 through the bidirectional parallel

interface. Once programmed, the MAX125/MAX126

continue to convert the specified number of channels

per CONVST pulse until they are reprogrammed. The

channels are converted sequentially, beginning with

CH1. The INT signal always follows the end of the last

conversion in a conversion sequence. The ADC con-

verts each assigned channel in 3µs and stores the

result in an internal 14x4 RAM. Upon completion of the

conversions, data can be accessed by applying suc-

cessive pulses to the RD pin. Four successive reads

access four data words sequentially.

♦

5ꢀ Supplies

♦ Internal +2ꢂ5ꢀ or External Reference Operation

♦ Programmable On-Board Sequencer

♦ High-Speed Parallel DSP Interface

Ordering Information

INL

(LSB)

PART

TEMP RANGE

PIN-PACKAGE

MAX125CCAX

0°C to +70°C

36 SSOP

MAX125CEAX -40°C to +85°C

MAX126CCAX 0°C to +70°C

MAX126CEAX -40°C to +85°C

The parallel interface’s data-access and bus-release

timing specifications are compatible with most popular

digital signal processors and 16-bit/32-bit microproces-

sors, so the MAX125/MAX126 conversion results can

be accessed without resorting to wait states.

Applications

Multiphase Motor Control

Power-Grid Synchronization

Power-Factor Monitoring

Typical Operating Circuit appears at end of data sheetꢂ

Pin Configuration appears at end of data sheetꢂ

Digital Signal Processing

Vibration and Waveform Analysis

________________________________________________________________ Maxim Integrated Products

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

or visit Maxim’s website at wwwꢂmaxim-icꢂcomꢂ

12 3 4 5 6 7...15

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与MAX125相关器件

型号	品牌	获取价格	描述	数据表
MAX125_08	MAXIM	获取价格	2x4-Channel, Simultaneous-Sampling 14-Bit DAS
MAX12527	MAXIM	获取价格	Dual, 65Msps, 12-Bit, IF/Baseband ADC
MAX12527	ADI	获取价格	双路、65Msps、12位、IF/基带ADC
MAX12527ETK	MAXIM	获取价格	Dual, 65Msps, 12-Bit, IF/Baseband ADC
MAX12527ETK+	MAXIM	获取价格	暂无描述
MAX12527ETK+T	MAXIM	获取价格	ADC, Proprietary Method, 12-Bit, 1 Func, 2 Channel, Parallel, Word Access, CMOS, 10 X 10 M
MAX12527ETK+TD	MAXIM	获取价格	ADC, Proprietary Method, 12-Bit, 2 Func, 1 Channel, Parallel, Word Access, CMOS, 10 X 10 M
MAX12527ETK-D	MAXIM	获取价格	ADC, Proprietary Method, 12-Bit, 2 Func, 1 Channel, Parallel, Word Access, CMOS, 10 X 10 M
MAX12527EVKIT	MAXIM	获取价格	Low-Voltage and Low-Power Operation
MAX12528	MAXIM	获取价格	Dual, 96Msps, 14-Bit, IF/Baseband ADC

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