Overview
The ADC0820CCN/NOPB is an 8-bit high-speed analog-to-digital converter (ADC) produced by Texas Instruments. This CMOS A/D converter is designed for high-speed applications and features a built-in track-and-hold function, eliminating the need for an external sample-and-hold circuit for signals with slew rates less than 100 mV/µs. The ADC uses a half-flash conversion technique, which includes 32 comparators and two 4-bit ADCs, providing a conversion time of 1.5 µs in WR-RD mode and 2.5 µs in RD mode. It operates on a single 5 V supply and is compatible with all microprocessors, making it versatile for various industrial and embedded system applications.
Key Specifications
| Parameter | 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 |
| Input Type | Pseudo-Differential, Single Ended |
| Data Interface | Parallel |
| Configuration | S/H-ADC |
| Reference Type | External |
| Voltage - Supply, Analog | 4.5V ~ 8V |
| Voltage - Supply, Digital | 4.5V ~ 8V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Through Hole |
| Package/Case | 20-DIP |
Key Features
- Built-in track-and-hold function
- No missing codes
- No external clocking required
- Single supply—5 VDC
- 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
- Available in 20-pin DIP, PLCC, SOIC, and SSOP packages
Applications
The ADC0820CCN/NOPB is suitable for a variety of high-speed data acquisition and control applications. It is particularly useful in industrial control systems, medical devices, and other embedded systems where fast and accurate analog-to-digital conversion is required. Its compatibility with microprocessors and ease of interface make it a versatile component for many digital systems.
Q & A
- What is the resolution of the ADC0820CCN/NOPB?
The resolution of the ADC0820CCN/NOPB is 8 bits. - What is the conversion time of the ADC0820CCN/NOPB?
The conversion time is 1.5 µs in WR-RD mode and 2.5 µs in RD mode. - What is the power consumption of the ADC0820CCN/NOPB?
The power consumption is 75 mW maximum. - Does the ADC0820CCN/NOPB require an external sample-and-hold circuit?
No, it has a built-in track-and-hold function. - What is the operating temperature range of the ADC0820CCN/NOPB?
The operating temperature range is 0°C to 70°C. - What types of packages are available for the ADC0820CCN/NOPB?
It is available in 20-pin DIP, PLCC, SOIC, and SSOP packages. - Is the ADC0820CCN/NOPB compatible with microprocessors?
Yes, it is designed to appear as a memory location or I/O port and is compatible with all microprocessors. - Does the ADC0820CCN/NOPB require external interfacing logic?
No, it does not require external interfacing logic. - What is the analog input voltage range of the ADC0820CCN/NOPB?
The analog input voltage range is 0V to 5V with a single 5V supply. - Is zero or full-scale adjustment required for the ADC0820CCN/NOPB?
No, zero or full-scale adjustment is not required.
