AD7655是一款低成本、4通道、16位、电荷再分配SAR型模数转换器(ADC),采用5 V单电源供电。该器件内置两个低噪声、宽带宽、可同步采样的采样保持放大器、一个1 MSPS 16位高速采样ADC、一个内部转换时钟、纠错电路,以及串行和并行系统接口。每个采样保持放大器都含一个多路复用器,以将4通道输入复用至ADC。
该器件具有两种采样模式:一种是极高采样速率模式(正常模式);一种是低功耗模式(脉冲模式),适用于低功耗应用,其功耗与吞吐量呈比例关系。该器件采用48引脚LQFP或48引脚LFCSP封装,工作温度范围为-40°C至+85°C。
The AD7655 is a low cost four channel 16-bit, charge redistribution SAR, Analog-to-Digital Converter which operates from a single 5 Volt power supply. It contains two low noise, wide bandwidth track/hold amplifiers which allow simultaneous sampling, a high-speed 1 MSPS 16-Bit sampling ADC, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports.Each track/hold has a multiplexer to provide a four-channel ADC.
It features a very high sampling rate mode (Normal) and, for low power applications, a reduced power mode (Impulse) where the power is scaled with the throughput. It is available in a 48-lead LQFP or a 48-lead LFCSP with operation specified from –40°C to +85°C.
产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
---|---|---|---|---|
AD7655ACP | 量产 | 48 ld LFCSP 7x7mm (5.25EP) | 48 | 工业 |
AD7655ACPZ | 量产 | 48 ld LFCSP 7x7mm (5.25EP) | 48 | 工业 |
AD7655ACPZRL | 量产 | 48 ld LFCSP 7x7mm (5.25EP) | 48 | 工业 |
AD7655ASTZ | 量产 | 48 ld LQFP | 48 | 工业 |
AD7655ASTZRL | 量产 | 48 ld LQFP | 48 | 工业 |
EVAL-AD7655CBZ | 量产 | 评估板 | - | 工业 |