ADC0804LCN

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ADC0804LCN

+Nomenclature

IC ADC 8BIT SAR 20DIP

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Spécifications

Attribut Valeur
Part Status Obsolete
Base Product Number ADC0804
Number of Bits 8
Sampling Rate (Per Second) 10k
Number of Inputs 1
Input Type Differential
Data Interface Parallel
Configuration ADC
Number of A/D Converters 1
Architecture SAR
Reference Type External, Supply
Voltage - Supply, Analog 4.5V ~ 6.3V
Voltage - Supply, Digital 4.5V ~ 6.3V
Operating Temperature 0°C ~ 70°C
Package 20-DIP (0.300", 7.62mm)
Supplier Device Package 20-PDIP
Mounting Type Through Hole
Packaging Tube

Présentation

Description

The ADC0804LCN is a monolithic analog-to-digital converter (ADC) designed by National Semiconductor (now part of Texas Instruments). It converts an analog input signal into a digital output using a successive approximation method. This ADC is an 8-bit device, meaning it provides digital outputs in the range of 0 to 255, corresponding to the analog input voltage range.
The ADC0804LCN operates with a single power supply of typically 5V and can handle input voltages ranging from 0V to VCC. It features a built-in clock generator, which simplifies its use in microcontroller and microprocessor interfacing. The device provides a high-speed conversion time of approximately 100 microseconds, making it suitable for various applications requiring moderate sampling rates.
This ADC includes features like a differential analog voltage input, a reference voltage pin for adjusting the input voltage range, and a tri-state output for easy bus interfacing. It is commonly used in applications such as data acquisition systems, instrumentation, and process control, where precise digital representation of analog signals is needed.

Equivalent

The ADC0804LCN is an 8-bit analog-to-digital converter. Equivalent products include:
1. ADC0804 series (e.g., ADC0804LCWM ADC0804CCN)
2. ADC0808/ADC0809 (with multiplexer)
3. MAX111 (similar 8-bit ADC)
4. TLC548/TLC549 from Texas Instruments (similar 8-bit ADC)
These alternatives offer similar functionality with varying package types and additional features. Make sure to verify specific requirements like resolution, input voltage range, and package compatibility when selecting an equivalent.

Features

The ADC0804LCN is an 8-bit analog-to-digital converter (ADC) with the following key features:
1. Resolution: 8-bit, providing 256 quantization levels for analog signal conversion.
2. Single Channel: Converts a single analog input to a digital output.
3. Voltage Reference: Operates with a differential reference voltage input, allowing flexibility in input range.
4. Microprocessor Compatibility: Compatible with microprocessor and microcontroller interfaces.
5. Conversion Time: Fast conversion times typically around 100 µs.
6. Supply Voltage: Operates on a single 5V power supply.
7. Low Power Consumption: Suitable for battery-operated devices.
8. Ratiometric Conversion: Minimizes errors due to power supply variations.
9. Input Range: 0V to 5V input voltage range.
10. Operating Temperature: Typically from 0°C to 70°C for commercial grade.
11. Package: Available in a 20-pin dual in-line package (DIP).
These features make the ADC0804LCN suitable for applications requiring basic data acquisition and digitization in embedded systems.

Pinout

The ADC0804LCN is an 8-bit analog-to-digital converter (ADC) with a single-channel input. It is part of the ADC0804 series, which is designed to convert analog input signals into digital output. The ADC0804LCN has a 20-pin configuration. Here are the key functions associated with its pins:
1. IN (+) and IN (−): Differential analog input pins.
2. VCC: Supply voltage pin.
3. AGND/DGND: Analog and Digital ground pins.
4. CLK R and CLK IN: Clock resistor and clock input, for setting the conversion clock frequency.
5. VREF/2: Reference voltage input for setting the scale of the analog input.
6. CS: Chip Select, active-low input used to enable the ADC.
7. RD: Read, active-low input to read data from the ADC.
8. WR: Write, active-low input to start the conversion process.
9. INTR: Interrupt output, goes low when conversion is complete.
10. Outputs (D0-D7): Digital output pins representing the converted value.
These pins control the operation, input, and output of the ADC, facilitating the conversion of an analog signal to a digital representation.

Manufacturer

The ADC0804LCN is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of electronic components, including integrated circuits, microcontrollers, sensors, and analog chips. TI is well-known for its advanced semiconductor technologies and solutions, which are widely used in various industries, including consumer electronics, automotive, industrial, and communications.

Application

The ADC0804LCN is an 8-bit analog-to-digital converter commonly used in various applications. Its primary application areas include data acquisition systems, where it converts analog signals from sensors into digital data for processing. It's also used in digital voltmeters for measuring electrical voltages, and in embedded systems for interfacing with microcontrollers. Additionally, it's utilized in temperature monitoring systems, audio signal processing, and consumer electronics for digitizing analog inputs. The ADC0804LCN is valued for its ease of use, low cost, and compatibility with standard digital interfaces, making it suitable for educational and prototyping projects as well.

Package

The ADC0804LCN is an 8-bit analog-to-digital converter (ADC) with a package type of DIP (Dual In-line Package), typically featuring 20 pins. It is commonly used for converting analog signals to digital form in various applications.

Frequently Asked Questions


Q: What is the maximum sampling rate of the ADC0804LCN?
A: The maximum sampling rate is 10,000 samples per second (10k SPS), suitable for low-speed data acquisition.


Q: Does this ADC require an external reference voltage?
A: Yes, it supports external reference or uses the supply voltage as reference, with an analog supply range of 4.5V to 6.3V.


Q: How many analog input channels does the ADC0804LCN have?
A: It has one differential analog input, ideal for measuring voltage differences between two signals.


Q: What is the resolution of this ADC converter?
A: It provides 8-bit resolution, yielding 256 discrete output levels for digital representation.


Q: Is the ADC0804LCN compatible with microcontrollers?
A: Yes, it uses a parallel data interface, allowing direct connection to 8-bit microcontrollers or digital systems.


Q: What is the operating temperature range for this component?
A: It operates from 0°C to 70°C, suitable for commercial-grade applications.


Q: What package type does the ADC0804LCN come in?
A: It is housed in a 20-pin PDIP (0.300-inch width) through-hole package, ideal for prototyping and breadboarding.


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