Overview
The ADC0804LCN/NOPB is an 8-bit successive approximation analog-to-digital converter (ADC) produced by Texas Instruments. This CMOS-based ADC is designed to be compatible with microprocessors, particularly those derived from the 8080, and can operate without the need for additional interfacing logic. It features a differential potentiometric ladder and is capable of operating as a stand-alone device or integrated into various microprocessor systems.
The ADC0804LCN/NOPB is part of a family of ADCs that include the ADC0801, ADC0802, ADC0803, and ADC0805, all of which share similar characteristics and functionalities. These converters are known for their ease of use and versatility in various analog-to-digital conversion applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 8 Bits | |
| Total Error | ±1/4 LSB, ±1/2 LSB, ±1 LSB | |
| Conversion Time | 100 µs | |
| Analog Input Voltage Range | 0 V to 5 V | |
| Supply Voltage (VCC) | 4.5 VDC to 6.3 VDC | |
| Operating Temperature Range | 0°C to 70°C | |
| Package Type | 20-Pin DIP, 20-Pin Molded Chip Carrier, or Small Outline Package | |
| Access Time | 135 ns | |
| Supply Current (ICC) | 1.9 mA to 2.5 mA at VCC = 5 VDC |
Key Features
- Compatible with 8080 microprocessor derivatives – no interfacing logic needed.
- Easy interface to all microprocessors or operates as a stand-alone device.
- Differential analog voltage inputs.
- Logic inputs and outputs meet both MOS and TTL voltage-level specifications.
- Works with 2.5-V (LM336) voltage reference.
- On-chip clock generator.
- No zero adjust required.
- Operates ratiometrically or with 5 V DC, 2.5 V DC, or analog span adjusted voltage reference.
Applications
The ADC0804LCN/NOPB is suitable for a wide range of applications where analog-to-digital conversion is required. These include:
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Automotive systems.
- Embedded systems and IoT devices.
Q & A
- What is the resolution of the ADC0804LCN/NOPB?
The resolution of the ADC0804LCN/NOPB is 8 bits.
- What is the conversion time of the ADC0804LCN/NOPB?
The conversion time is 100 µs.
- What is the operating temperature range of the ADC0804LCN/NOPB?
The operating temperature range is 0°C to 70°C.
- Does the ADC0804LCN/NOPB require interfacing logic to work with microprocessors?
No, it does not require additional interfacing logic to work with microprocessors.
- What types of packages are available for the ADC0804LCN/NOPB?
It is available in 20-Pin DIP, 20-Pin Molded Chip Carrier, or Small Outline Package.
- What is the supply voltage range for the ADC0804LCN/NOPB?
The supply voltage range is 4.5 VDC to 6.3 VDC.
- Can the ADC0804LCN/NOPB operate with different voltage references?
- Does the ADC0804LCN/NOPB have an on-chip clock generator?
- What is the typical supply current of the ADC0804LCN/NOPB at VCC = 5 VDC?
The typical supply current is 1.9 mA to 2.5 mA.
- Does the ADC0804LCN/NOPB require zero adjustment?
No, it does not require zero adjustment.
