AD7863ARSZ-10REEL7

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AD7863ARSZ-10REEL7概述

ADC Dual SAR 175KSPS 14Bit Parallel 28Pin SSOP T/R

Product Details

The AD7863 is a high speed, low power, dual 14-bit analog-to-digital converter that operates from a single 5 V supply.

The part contains two 5.2 μs successive approximation ADCs, two track/hold amplifiers, an internal 2.5 V reference and a high speed parallel interface. Four analog inputs are grouped into two channels A and B selected by the A0 input. Each channel has two inputs VA1 and VA2 or VB1 and VB2 that can be sampled and converted simultaneously, thus preserving the relative phase information of the signals on both analog inputs. The part accepts an analog input range of ±10 V AD7863-10, ±2.5 V AD7863-3, and 0 V to 2.5 V AD7863-2. Overvoltage protection on the analog inputs for the part allows the input voltage to go to ±17 V, ±7 V, or +7 V respectively, without causing damage.

A single conversion start signal CONVST simultaneously places both track/holds into hold and initiates conversion on both channels. The BUSY signal indicates the end of conversion and at this time the conversion results for both channels are available to be read. The first read after a conversion accesses the result from VA1 or VB1, and the second read accesses the result from VA2 or VB2, depending on whether the multiplexer select A0 is low or high, respectively. Data is read from the part via a 14-bit parallel data bus with standard CS and RD signals. In addition to the traditional dc accuracy specifications such as linearity, gain, and offset errors, the part is also specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio.

The AD7863 is fabricated in the Analog Devices, Inc. linear compatible CMOS LC2MOS process, a mixed technology process that combines precision bipolar circuits with low power CMOS logic. It is available in 28-lead SOIC_W and SSOP.

**Product Highlights**

1. The AD7863 features two complete ADC functions allowing simultaneous sampling and conversion of two channels. Each ADC has a two-channel input mux. The conversion result for both channels is available 5.2 μs after initiating conversion.

2. The AD7863 operates from a single 5 V supply and consumes 70 mW typical. The automatic power-down mode, where the part goes into power-down once conversion is complete and wakes up before the next conversion cycle, makes the AD7863 ideal for battery-powered or portable applications.

3. The part offers a high speed parallel interface for easy connection to microprocessors, microcontrollers, and digital signal processors.

4. The part is offered in three versions with different analog input ranges. The AD7863-10 offers the standard industrial input range of ±10 V; the AD7863-3 offers the common signal processing input range of ±2.5 V, while the AD7863-2 can be used in unipolar 0 V to 2.5 V applications.

5. The part features very tight aperture delay matching between the two input sample and hold amplifiers.

### Features and Benefits

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Two fast 14-bit ADCs
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Four input channels
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Simultaneous sampling and conversion
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5.2 μs conversion time
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Single supply operation
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High speed parallel interface
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Low power, 70 mW typical
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Selection of input ranges 

±10 V for AD7863-10 

±2.5 V for AD7863-3 

0 V to 2.5 V for AD7863-2

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Power saving mode, 105 μW maximum
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Overvoltage protection on analog inputs
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14-bit lead compatible upgrade to AD7862
AD7863ARSZ-10REEL7中文资料参数规格
技术参数

数字逻辑电平 SAR

电路数 2

通道数 4

位数 14

耗散功率 70 mW

采样率 175 ksps

分辨率Bits 14.0

输入阻抗 9.00 GΩ

模数转换数ADC 2

输入数 4

工作温度Max 85 ℃

工作温度Min -40 ℃

耗散功率Max 94.5 mW

输入通道数 4

封装参数

安装方式 Surface Mount

引脚数 28

封装 SSOP-28

外形尺寸

封装 SSOP-28

物理参数

工作温度 -40℃ ~ 85℃

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

AD7863ARSZ-10REEL7引脚图与封装图
AD7863ARSZ-10REEL7引脚图
AD7863ARSZ-10REEL7封装图
AD7863ARSZ-10REEL7电路图
AD7863ARSZ-10REEL7封装焊盘图
在线购买AD7863ARSZ-10REEL7
型号: AD7863ARSZ-10REEL7
制造商: ADI 亚德诺
描述:ADC Dual SAR 175KSPS 14Bit Parallel 28Pin SSOP T/R
替代型号AD7863ARSZ-10REEL7
型号/品牌 代替类型 替代型号对比

AD7863ARSZ-10REEL7

ADI 亚德诺

当前型号

当前型号

AD7863ARZ-10

亚德诺

完全替代

AD7863ARSZ-10REEL7和AD7863ARZ-10的区别

AD7863ARSZ-10

亚德诺

完全替代

AD7863ARSZ-10REEL7和AD7863ARSZ-10的区别

AD7863AR-10

亚德诺

完全替代

AD7863ARSZ-10REEL7和AD7863AR-10的区别

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