AD7291BCPZ-RL7

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AD7291BCPZ-RL7概述

8通道, I2C , 12位SAR ADC ,内置温度传感器 8-Channel, I2C, 12-Bit SAR ADC with Temperature Sensor

Product Details

The AD7291 is a 12-bit, low power, 8-channel, successive approximation analog-to-digital converter ADC with an internal temperature sensor.

The part operates from a single 3.3 V power supply and features an I2C-compatible interface. The part contains a 9-channel multiplexer and a track-and-hold amplifier than can handle frequencies up to 30 MHz. The device has an on-chip 2.5 V reference that can be disabled to allow the use of an external reference.

The AD7291 provides a 2-wire serial interface compatible with I2C interfaces. The I2C interface supports standard and fast I2C interface modes. The AD7291 normally remains in a partial power-down state while not converting and powers up for conversions. The conversion process can be controlled by a command mode where conversions occur across I2C write operations or an autocycle mode selected through software control.

The AD7291 includes a high accuracy band gap temperature sensor, which is monitored and digitized by the 12-bit ADC to give a resolution of 0.25°C.

The AD7291 offers a programmable sequencer, which enables the selection of a preprogrammable sequence of channels for conversion.

On-chip limit registers can be programmed with high and low limits for the conversion results; an out-of-range indicator output ALERT becomes active when the programmed high or low limits are violated by the conversion result. This output can be used as an interrupt.

**Product Highlights**

1. Ideally suited to monitoring system variables in a variety of systems including telecommunications, process control, and industrial control.

2. I2C-compatible serial interface. Standard and fast modes.

3. Automatic partial power-down while not converting to maximize power efficiency.

4. Channel sequencer operation.

5. Integrated temperature sensor with 0.25°C resolution.

6. Out of range indicator that can be software disabled or enabled.

### Features and Benefits

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12-bit SAR ADC
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8 single-ended analog input channels
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Analog input range: 0 V to 2.5 V
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12-bit temperature-to-digital converter
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Temperature sensor accuracy of ±1°C typical
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Channel sequencer operation
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Specified for VDD of 2.8 V to 3.6 V
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Logic voltage VDRIVE = 1.65 V to 3.6 V
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Internal 2.5 V reference
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See data sheet for additional features

**AD7291-EP supports defense and aerospace applications AQEC

standard
.
*
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Download AD7291-EP data sheet pdf
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Extended industrial temperature range: −55°C to +125°C
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Controlled manufacturing baseline
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1 assembly/test site
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1 fabrication site
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Product change notification
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Qualification data available upon request
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V62/17610 DSCC Drawing Number
AD7291BCPZ-RL7中文资料参数规格
技术参数

通道数 9

位数 12

耗散功率 12.6 mW

采样率 22.22 ksps

分辨率Bits 12.0

输入电容 34.0 pF

模数转换数ADC 1

输入数 8

工作温度Max 125 ℃

工作温度Min -40 ℃

耗散功率Max 12.6 mW

输入通道数 8

输入电压 2.5 V

封装参数

安装方式 Surface Mount

引脚数 20

封装 LFCSP-20

外形尺寸

封装 LFCSP-20

物理参数

工作温度 -40℃ ~ 125℃

其他

产品生命周期 Active

包装方式 Tape & Reel TR

符合标准

RoHS标准 RoHS Compliant

含铅标准 Lead Free

军工级 No

数据手册

AD7291BCPZ-RL7引脚图与封装图
AD7291BCPZ-RL7引脚图
AD7291BCPZ-RL7封装图
AD7291BCPZ-RL7电路图
AD7291BCPZ-RL7封装焊盘图
在线购买AD7291BCPZ-RL7
型号: AD7291BCPZ-RL7
制造商: ADI 亚德诺
描述:8通道, I2C , 12位SAR ADC ,内置温度传感器 8-Channel, I2C, 12-Bit SAR ADC with Temperature Sensor
替代型号AD7291BCPZ-RL7
型号/品牌 代替类型 替代型号对比

AD7291BCPZ-RL7

ADI 亚德诺

当前型号

当前型号

AD7291BCPZ

亚德诺

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