MAX1294 - 420ksps、+5V、6/2通道、12位ADC，带有+2.5V电压基准及并行接口

MAX1294是Maxim美信半导体公司的一款数据转换器和采样-保持电路产品，MAX1294是420ksps、+5V、6/2通道、12位ADC，带有+2.5V电压基准及并行接口，本站介绍了MAX1294的封装应用图解、特点和优点、功能等，并给出了与MAX1294相关的Maxim元器件型号供参考。

MAX1294 - 420ksps、+5V、6/2通道、12位ADC，带有+2.5V电压基准及并行接口 - 数据转换器和采样-保持电路 - 尺寸最小的低功耗、并行输出、12位ADC - 美信半导体

产品概述

The MAX1294/MAX1296 low-power, 12-bit analog-to-digital converters (ADCs) feature a successive-approximation ADC, automatic power-down, fast wake-up (2µs), an on-chip clock, +2.5V internal reference, and a high-speed 12-bit parallel interface. They operate with a single +5V analog supply.

Power consumption is only 10mW at the maximum sampling rate of 420ksps. Two software-selectable power-down modes enable the MAX1294/MAX1296 to be shut down between conversions; accessing the parallel interface returns them to normal operation. Powering down between conversions can reduce supply below 10µA at lower sampling rates.

Both devices offer software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation. In single-ended mode, the MAX1294 has six input channels and the MAX1296 has two (three input channels and one input channel, respectively, when in pseudo-differential mode).

Excellent dynamic performance and low power, combined with ease of use and small package size, make these converters ideal for battery-powered and data-acquisition applications or for other circuits with demanding power-consumption and space requirements.

The MAX1294/MAX1296 tri-states active-low INT when active-low CS goes high. Refer to MAX1266/MAX1268 if tri-stating active-low INT is not desired.

The MAX1294 is offered in a 28-pin QSOP package, while the MAX1296 is available in a 24-pin QSOP. For pin-compatible +3V, 12-bit versions, see the MAX1295/MAX1297.

关键特性

以下关键特性由Maxim美信半导体提供：

12-Bit Resolution, ±0.5 LSB Linearity

Single +5V Operation

Internal +2.5V Reference

Software-Configurable Analog Input Multiplexer

6-Channel Single-Ended/3-Channel Pseudo-Differential (MAX1294)

2-Channel Single-Ended/1-Channel Pseudo-Differential (MAX1296)

Software-Configurable Unipolar/Bipolar Analog Inputs

Low Current

2.8mA (420ksps)

1.0mA (100ksps)

400µA (10ksps)

2µA (Shutdown)

Internal 6MHz Full-Power Bandwidth Track/Hold

Parallel 12-Bit Interface

Small Footprint

28-Pin QSOP (MAX1294)

24-Pin QSOP (MAX1296)

热门应用

数据采集系统

数据记录

能量管理

工业控制系统

病人监护

触摸屏

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