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
|Parameters ||Specification |
|Part number ||ADC0808-N |
|Resolution (Bits) ||8 |
|Sample rate (Max) (kSPS) ||10 |
|Number of input channels ||8 |
|Interface ||Parallel |
|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) |
|Architecture ||SAR |
|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.