AD7895是一款快速、12位ADC,采用+5 V单电源供电,提供8引脚小型DIP和8引脚SOIC两种封装。该器件内置一个3.8微秒(µs)逐次逼近型模数转换器、一个片内采样保持放大器、一个片内时钟和一个高速串行接口。AD7895通过一个高速串行接口端口输出数据,这个双线串行接口具有一个串行时钟输入和一个串行数据输出,通过外部串行时钟可访问该器件中的串行数据。除线性度、满量程和失调误差等传统直流精度规格外,AD7895的动态性能参数也做了详细规定,包括谐波失真和信噪比。该器件可接受的模拟输入范围为±10 V(AD7895-10)、±2.5 V(AD7895-3)、0 V至2.5 V(AD7895-2),采用+5 V单电源供电,最大功耗仅20 mW。AD7895提供两种采样模式:一种是高采样速率模式;另一种是针对低功耗应用的专有自动省电模式,即一旦完成转换,器件便自动进入省电模式,并在下一个转换周期开始前“唤醒”。该器件提供两种封装:8引脚、0.3英寸宽、小型塑料双列直插式封装(小型DIP);以及8引脚小形集成封装(SOIC)。
The AD7895 is a fast 12-bit ADC that operates from a single +5 V supply and is housed in a small 8-pin mini-DIP and 8-pin SOIC. The part contains a 3.8 µs successive approximation A/D converter, an on-chip track/hold amplifier, an on-chip clock and a high speed serial interface.Output data from the AD7895 is provided via a high speed, serial interface port. This two-wire serial interface has a serial clock input and a serial data output with the external serial clock accessing the serial data from the part.In addition to the traditional dc accuracy specifications such as linearity and full-scale and offset errors, the AD7895 is specified for dynamic performance parameters, including harmonic distortion and signal-to-noise ratio.The part accepts an analog input range of ±10 V (AD7895-10), ±2.5 V (AD7895-3), 0 V to 2.5 V (AD7895-2) and operates from a single +5 V supply, consuming only 20 mW max.The AD7895 features a high sampling rate mode and, for low power applications, a proprietary automatic power-down mode where the part automatically goes into power down once conversion is complete and "wakes up" before the next conversion cycle.The part is available in a small, 8-pin, 0.3" wide, plastic dual-in-line package (mini-DIP) and in an 8-pin, small outline IC (SOIC).
AD7895 特点
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AD7895 技术指标
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产品型号 | 封装 | 引脚 | 温度范围 | 包装和数量 | 报价*(100-499) | 报价*1000 pcs |
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AD42/309Z-0 产品状态: 最后订购时间 | 8 ld SOIC | 8 | 商业 | Tube, 98 | - | - |
AD42/309Z-0REEL 产品状态: 最后订购时间 | 8 ld SOIC | 8 | 商业 | Reel, 2500 | - | - |
AD7895ACHIPS-10 产品状态: 量产 | CHIPS OR DIE | - | 商业 | Tray, 140 | - | $ 5.92 |
AD7895ANZ-10 产品状态: 量产 | 8 ld PDIP | 8 | 工业 | Tube, 50 | $ 6.41 | $ 5.42 |
AD7895ANZ-2 产品状态: 量产 | 8 ld PDIP | 8 | 工业 | Tube, 50 | $ 6.73 | $ 5.69 |
AD7895ANZ-3 产品状态: 量产 | 8 ld PDIP | 8 | 工业 | Tube, 50 | $ 6.73 | $ 5.69 |
AD7895ARZ-10 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Tube, 98 | $ 5.92 | $ 5.01 |
AD7895ARZ-10REEL 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Reel, 2500 | - | $ 5.01 |
AD7895ARZ-2 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Tube, 98 | $ 5.92 | $ 5.01 |
AD7895ARZ-2REEL 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Reel, 2500 | - | $ 5.01 |
AD7895ARZ-3 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Tube, 98 | $ 5.92 | $ 5.01 |
AD7895ARZ-3REEL 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Reel, 2500 | - | $ 5.01 |
AD7895BRZ-10 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Tube, 98 | $ 8.10 | $ 6.88 |
AD7895BRZ-10REEL 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Reel, 2500 | - | $ 6.88 |
AD7895BRZ-2 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Tube, 98 | $ 8.10 | $ 6.88 |