Touch Screen Controller

GENERAL DESCRIPTION The AD7877 is a 12-bit, successive approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens. The AD7877 operates from a single 2.7 V to 5.25 V power supply (functional operation to 2.2 V), and features throughput rates of 1

文件：1.00279 Mbytes 页数：44 Pages

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Tape and Reel Packaging

文件：395.36 Kbytes 页数：6 Pages

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Tape and Reel Packaging

文件：395.36 Kbytes 页数：6 Pages

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Touch Screen Controller

文件：825.31 Kbytes 页数：46 Pages

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触摸屏控制器

AD7877是一款12位逐次逼近型ADC，具有同步串行接口以及用于驱动触摸屏的低导通电阻开关，采用2.7 V至5.25 V单电源供电（2.2 V也可正常运转），吞吐速率为125 kSPS。AD7877可用于两个输入上的电池测量、温度测量和触摸压力测量。\n\n AD7877还具有一个2.5 V片上基准电压源。不使用时，可关断基准电压源以降低功耗。也可以使用外部基准电压，并可在1 V至+VCC范围内变化，模拟输入范围为0 V至VREF。这款器件具有关断模式，此模式下功耗不足1 µA。\n\n 片上ADC的相位采集通过STOPACQ引脚来控制，这样可以降低来自LCD的噪声影响。 • 4线触摸屏接口\n\n• LCD降噪特性（STOPACQ引脚）\n\n• 自动转换序列器与定时器\n\n• 用户可编程的转换参数\n\n• 片内温度传感器：-40°C至+85°C\n\n• 2.5 V片内基准电压源;

ADI

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Touch Screen Controller

GENERAL DESCRIPTION The AD7877 is a 12-bit, successive approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens. The AD7877 operates from a single 2.7 V to 5.25 V power supply (functional operation to 2.2 V), and features throughput rates of 1

文件：1.00279 Mbytes 页数：44 Pages

AD

亚德诺

Touch Screen Controller

GENERAL DESCRIPTION The AD7877 is a 12-bit, successive approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens. The AD7877 operates from a single 2.7 V to 5.25 V power supply (functional operation to 2.2 V), and features throughput rates of 1

文件：1.00279 Mbytes 页数：44 Pages

AD

亚德诺

Touch Screen Controller

GENERAL DESCRIPTION The AD7877 is a 12-bit, successive approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens. The AD7877 operates from a single 2.7 V to 5.25 V power supply (functional operation to 2.2 V), and features throughput rates of 1

文件：1.00279 Mbytes 页数：44 Pages

AD

亚德诺

Touch Screen Controller

GENERAL DESCRIPTION The AD7877 is a 12-bit, successive approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens. The AD7877 operates from a single 2.7 V to 5.25 V power supply (functional operation to 2.2 V), and features throughput rates of 1

文件：1.00279 Mbytes 页数：44 Pages

AD

亚德诺

Touch Screen Controller

GENERAL DESCRIPTION The AD7877 is a 12-bit, successive approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens. The AD7877 operates from a single 2.7 V to 5.25 V power supply (functional operation to 2.2 V), and features throughput rates of 1

文件：1.00279 Mbytes 页数：44 Pages

AD

亚德诺