The ADC0808 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 has been optimized by incorporating the most desirable aspects of several A/D conversion techniques. The ADC0808 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
ADC0808 Equivalent to MM74C949
Part number ADC0808-N
Resolution (Bits) 8
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 type Single-Ended
Multi-channel configuration Multiplexed
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
ADC0808 IC Datasheet
* Product Images are shown for illustrative purposes only and may differ from actual product.