ADC0808CCVX

ADC0808CCVX is an 8-channel, 8‑bit successive-approximation ADC from the ADC0808 family. It multiplexes eight analog inputs to a single 8‑bit parallel data bus (D0–D7). It requires an external clock and a START pulse to begin a conversion; an End-Of-Conversion (EOC) goes high when the result is ready. Channel selection is done with three address pins (A, B, C). The analog input range is 0 to VREF+ (VREF− typically 0 V; many designs tie VREF+ to VCC). The device is commonly clocked around a few MHz; conversion time is determined by the clock and an internal 8‑clock cycle routine. The ADC0808CCVX is available in a 28‑pin package (e.g., DIP‑28 or SOIC‑28) with the CCVX suffix. It’s easy to interface to microcontrollers via a parallel data bus and simple control pins, making it a cost‑effective choice for multi‑channel data acquisition. For exact pin configuration and electrical specs, consult the TI/National datasheet for ADC0808CCVX.

Direct equivalent:
- ADC0809 (same 8-channel, 8-bit multiplexed ADC, same interface as ADC0808).
Other similar parts (8-bit, 8-channel multiplexed ADCs from other vendors):
- Analog Devices: ADC0831/ADC0832 (and related ADC083x family)
- Linear Technology / Analog devices cross-refs (LED: various 8-channel 8-bit multiplexed ADCs)
Note: check data sheets for pinout and timing compatibility; use distributor cross-reference for exact equivalents.

Key features of ADC0808CCVX (8-channel, 8-bit ADC):
- 8-channel, 8-bit successive-approximation ADC with built‑in 8:1 multiplexer.
- Parallel data output (D0–D7) and End-of-Conversion (EOC) signaling.
- External clock input; clock frequency sets conversion time.
- Channel select via three address inputs (A, B, C) for one of 8 inputs; CS enables the device.
- 0 to Vref analog input range; Vref supplied externally (full scale = Vref).
- 5V supply (4.5–5.5V typical CMOS); TTL/CMOS-compatible logic levels.
- 28-pin package variants (including CCVX), suitable for microprocessor interfacing.
- No external sample-and-hold needed; simple interface to microprocessors.
- Low-power CMOS design; suitable for embedded systems.

- Pin count: 28 pins (DIP-28 / SOP-28, package variant ADC0808CCVX).
- Function: 8-channel, 8-bit analog-to-digital converter with an external clock and an 8-channel multiplexer. It selects one of eight analog inputs (AIN0–AIN7) via address lines, converts it to an 8-bit digital code, and outputs the result on D0–D7 after a START pulse and when OE is asserted (EOC signals completion). Requires VCC, GND, VREF, and clock.

ADC0808CCVX is manufactured by National Semiconductor, which is now part of Texas Instruments (TI) after TI acquired NSC in 2011. National Semiconductor was a U.S.-based semiconductor company that designed and manufactured integrated circuits, especially analog and mixed-signal ICs. TI is a global American semiconductor company and one of the largest IC makers in the world.

ADC0808CCVX is a low-cost, 8-bit, 8-channel ADC with multiplexed inputs, suitable for microcontroller-based data acquisition. Common application areas:
- Microcontroller-based data acquisition and control
- Multichannel sensor interfacing (temp, pressure, humidity, light, strain)
- Industrial automation and process control
- Data logging and environmental monitoring
- Digital meters and portable test instruments
- Biomedical sensor arrays and physiological measurements
- Educational lab experiments and rapid prototyping
- IoT/remote sensing with low-cost front ends

28-pin dual-inline package (DIP-28), plastic DIP version.