AD7823: 2.7 V至5.5 V、4.5 ms、8位ADC，采用8引脚microSOIC/DIP封装
AD7823是一款高速、低功耗、8位模数转换器（ADC），采用2.7 V至5.5 V单电源供电。该器件内置一个4.5 微秒（us）逐次逼近型模数转换器、固有的采样保持功能（具有一个伪差分输入）和一个可与大多数微控制器进行接口的高速串行接口，额定温度范围为-40°C至+125°C。AD7823采用一种能够在一次转换结束时对CONVST（转换开始）信号状态进行采样的技术，因此该器件可以在自动省电模式下工作。在这种模式下工作时，AD7823会在一次转换结束时自动关断，并在新转换开始时自动“唤醒”。当吞吐量较低时，此特性可显著降低器件的功耗。AD7823也可在高速模式下工作，此时该器件在转换之间不关断。在高速模式下工作时，AD7823的转换时间为4.5 us。最大吞吐量取决于微控制器串行接口的速度。AD7823提供三种封装：8引脚、0.3英寸宽、小型塑料双列直插式封装（小型DIP）；8引脚小形集成封装（SOIC）；以及8引脚microSOIC封装。
The AD7823 is a high speed, low power, 8-bit A/D converter that operates from a single 2.7 V to 5.5 V supply. The part contains a 4.5 us successive approximation A/D converter, inherent track-and-hold functionality (with a pseudo differential input) and a high speed serial interface that interfaces to most microcontrollers. AD7823 is fully specified over a temperature range of -40°C to +125°C.By using a technique that samples the state of the CONVST (convert start) signal at the end of a conversion, the AD7823 may be used in an automatic power-down mode. When used in this mode, the AD7823 powers down automatically at the end of a conversion and "wakes up" at the start of a new conversion. This feature significantly reduces the power consumption of the part at lower throughput rates. The AD7823 can also operate in a high speed mode where the part is not powered down between conversions. In this high speed mode of operation, the conversion time of the AD7823 is 4.5 us. The maximum throughput rate is dependent on the speed of the serial interface of the microcontroller.The part is available in a small, 8-pin 0.3" wide, plastic dual-in-line package (mini-DIP); in an 8-lead, small outline IC (SOIC); and in an 8-lead microSOIC package.
AD7823 特点
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AD7823 技术指标
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AD7823 芯片订购指南
| 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 | RoHS |
|---|---|---|---|---|---|---|---|
| AD7823YR 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Tube, 98 | $ 3.06 | $ 2.39 | 否 |
| AD7823YRMZ 产品状态: 量产 | 8 ld MSOP | 8 | 工业 | Tube, 50 | $ 2.92 | $ 2.29 | 是 |
| AD7823YRMZ-REEL 产品状态: 量产 | 8 ld MSOP | 8 | 工业 | Reel, 3000 | - | $ 2.29 | 是 |
| AD7823YRMZ-REEL7 产品状态: 量产 | 8 ld MSOP | 8 | 工业 | Reel, 1000 | - | $ 2.29 | 是 |
| AD7823YRZ 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Tube, 98 | $ 2.92 | $ 2.29 | 是 |
| AD7823YRZ-REEL 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Reel, 2500 | - | $ 2.29 | 是 |
| AD7823YRZ-REEL7 产品状态: 量产 | 8 ld SOIC | 8 | 工业 | Reel, 1000 | - | $ 2.29 | 是 |