Overview
The ADC0820CCN/PB is an 8-bit high-speed analog-to-digital converter (ADC) manufactured by Texas Instruments. This CMOS ADC utilizes a half-flash conversion technique, which includes 32 comparators and a combination of a most significant 4-bit ADC and a least significant 4-bit ADC. This architecture enables the ADC to achieve a conversion time of 1.5 µs in WR-RD mode and 2.5 µs in RD mode, making it suitable for high-speed applications. The device operates on a single 5V supply and is designed to be compatible with various microprocessors, eliminating the need for external interfacing logic.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 8 Bits |
| Conversion Time | 1.5 µs Max (WR-RD Mode), 2.5 µs Max (RD Mode) |
| Power Consumption | 75 mW Max |
| Total Unadjusted Error | ±½ LSB and ± 1 LSB |
| Supply Voltage | 4.5 V ~ 8 V (Analog and Digital) |
| Operating Temperature Range | 0°C ~ 70°C |
| Package Type | 20-DIP (0.300", 7.62mm), 20-PDIP, 20-PLCC, 20-SOIC |
| Input Type | Pseudo-Differential, Single Ended |
| Data Interface | Parallel |
| Architecture | Flash |
| Reference Type | External |
Key Features
- Built-In Track-and-Hold Function
- No Missing Codes
- No External Clocking Required
- Single Supply—5 V DC
- Easy Interface to All Microprocessors or Operates Stand-Alone
- Latched TRI-STATE Output
- Logic Inputs and Outputs Meet Both MOS and TTL Voltage Level Specifications
- Operates Ratiometrically or with any Reference Value Equal to or Less than VCC
- 0V to 5V Analog Input Voltage Range with Single 5V Supply
- No Zero or Full-Scale Adjust Required
- Overflow Output Available for Cascading
Applications
The ADC0820CCN/PB is suitable for a variety of high-speed data acquisition applications, including industrial control systems, medical devices, and automotive systems. Its compatibility with microprocessors and ease of interface make it a versatile component for integrating into various digital systems. Additionally, its low power consumption and high conversion speed make it ideal for applications where both speed and power efficiency are critical.
Q & A
- What is the resolution of the ADC0820CCN/PB?
The ADC0820CCN/PB has an 8-bit resolution. - What is the conversion time of the ADC0820CCN/PB?
The conversion time is 1.5 µs Max in WR-RD mode and 2.5 µs Max in RD mode. - What is the power consumption of the ADC0820CCN/PB?
The power consumption is 75 mW Max. - What is the total unadjusted error of the ADC0820CCN/PB?
The total unadjusted error is ±½ LSB and ± 1 LSB. - What are the supply voltage requirements for the ADC0820CCN/PB?
The supply voltage range is 4.5 V ~ 8 V for both analog and digital supplies. - What are the package options available for the ADC0820CCN/PB?
The package options include 20-DIP, 20-PDIP, 20-PLCC, and 20-SOIC. - Does the ADC0820CCN/PB require an external clock?
No, the ADC0820CCN/PB does not require an external clock. - How does the ADC0820CCN/PB interface with microprocessors?
The ADC0820CCN/PB is designed to appear as a memory location or I/O port, making it easy to interface with microprocessors without external logic. - What is the operating temperature range of the ADC0820CCN/PB?
The operating temperature range is 0°C ~ 70°C. - Does the ADC0820CCN/PB have a built-in track-and-hold function?
Yes, the ADC0820CCN/PB has a built-in track-and-hold function.
