The 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 ADC0809 has been optimized by incorporating the most desirable aspects of several A/D conversion techniques. The ADC0809 offers high speed, high accuracy, minimal temperature dependence, excellent long-term accuracy and repeat-ability, and consumes minimal power. These features make this device ideally suited to applications from process and machine control to consumer and automotive applications.
- Easy Interface to All Microprocessors
- Operates Ratio-metrically or with 5 VDC or Analog Span Adjusted Voltage Reference
- No Zero or Full-Scale Adjust Required
- 8-Channel Multiplexer with Address Logic
- 0V to VCC Input Range
- Outputs meet TTL Voltage Level Specifications
- ADC0809 Equivalent to MM74C949-1
|Sample rate (Max) (kSPS)||10|
|Number of input channels||8|
|Operating temperature range ( C )||-40 to 85|
|Package Group||PLCC | 28|
|Power consumption (Typ) (mW)||15|
|Package size: mm2:W x L (PKG)||28PLCC: 155 mm2: 12.45 x 12.45 (PLCC | 28)|
|Input range (Max) (V)||6|
|Input range (Min) (V)||0|
|Analog voltage AVDD (Min) (V)||4.5|
|Analog voltage AVDD (Max) (V)||6|
|Digital supply (Min) (V)||4.5|
|Digital supply (Max) (V)||6|
|INL (Max) (+/-LSB)||1.25|
|Rating||See Data Sheet|
* product image for illustration purposes only. actual product may vary.
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