深圳市福田区宏科展销部 （非本站正式会员）

公司名称：深圳市福田区宏科展销部

地址：深圳市福田区华强北路新亚洲二期N1A108

ADC0809CCV(绝对）最大尓额定制：
一个高输入阻抗，高增益，射频放大器，允许这些可以直接连接到一个调谐器射频宽带设备阶段。内部自动增益控制电路，保证了噪声检测阈值保持不变，随着输入信号电平的变化。该射频门响应时间速度，足以空白在混频器输出的中频滤波器之前，噪声的脉冲。消隐时间有效地抑制了噪声干扰最大。残余音频噪声重新有一个音频采样与保持门移动。该射频消隐时间，音频门延迟时间，以及音频门消隐时间都可以indepen-dently调整，以适应特定的应用程序。

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ADC0808/ADC0809
8-Bit μP Compatible A/D Converters with 8-Channel
Multiplexer
General Description
The ADC0808, ADC0809 data acquisition component is a
monolithic CMOS device with an 8-bit analog-to-digital converter,
8-channel multiplexer and microprocessor compatible
control logic. The 8-bit A/D converter uses successive approximation
as the conversion technique. The converter features
a high impedance chopper stabilized comparator, a
256R voltage divider with analog switch tree and a successive
approximation register. The 8-channel multiplexer can
directly access any of 8-single-ended analog signals.
The device eliminates the need for external zero and
full-scale adjustments. Easy interfacing to microprocessors
is provided by the latched and decoded multiplexer address
inputs and latched TTL TRI-STATE® outputs.
The design of the ADC0808, ADC0809 has been optimized
by incorporating the most desirable aspects of several A/D
conversion techniques. The ADC0808, ADC0809 offers high
speed, high accuracy, minimal temperature dependence, excellent
long-term accuracy and repeatability, and consumes
minimal power. These features make this device ideally
suited to applications from process and machine control to
consumer and automotive applications. For 16-channel multiplexer
with common output (sample/hold port) see
ADC0816 data sheet. (See AN-247 for more information.)
Features
n Easy interface to all microprocessors
n Operates ratiometrically or with 5 VDC or analog span
adjusted voltage reference
n No zero or full-scale adjust required
n 8-channel multiplexer with address logic
n 0V to 5V input range with single 5V power supply
n Outputs meet TTL voltage level specifications
n Standard hermetic or molded 28-pin DIP package
n 28-pin molded chip carrier package
n ADC0808 equivalent to MM74C949
n ADC0809 equivalent to MM74C949-1
Key Specifications
n Resolution 8 Bits
n Total Unadjusted Error ±1⁄2 LSB and ±1 LSB
n Single Supply 5 VDC
n Low Power 15 mW
n Conversion Time 100 μs