ADC0809 (8-bit Analog To Digital Converters)

ADC0809 Analog To Digital Converters

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.

Features:

• Easy Interface to All Microprocessors.
• Operates Ratio-metrically or with 5 V_DC or Analog Span Adjusted Voltage Reference.
• No Zero or Full-Scale Adjust Required.
• 8-Channel Multiplexer with Address Logic.
• 0V to V_CC Input Range.
• Outputs meet TTL Voltage Level Specifications.
• ADC0809 Equivalent to MM74C949-1.

Specifications:

Parameters Specification Part number ADC0809-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: 155.0025 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 Applications:

• Microprocessor-based data acquisition systems.
• Digital signal processing.
• Industrial process control.
• Instrumentation and measurement systems.
• Consumer electronics.
• Automotive systems.
• Medical devices.

Package Contents:

• 1x ADC0809 Analog To Digital Converters

Related Document:

 ADC0809 IC Datasheet