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ADC0809CCN
+BOMIC ADC 8BIT SAR 28DIP
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제조업체텍사스 인스트루먼트(주)
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제조업체 부품 #ADC0809CCN
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재고5334
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사양
| 속성 | 가치 |
| Part Status | Obsolete |
| Base Product Number | ADC0809 |
| Number of Bits | 8 |
| Sampling Rate (Per Second) | 10k |
| Number of Inputs | 8 |
| Input Type | Single Ended |
| Data Interface | Parallel |
| Configuration | MUX-S/H-ADC |
| Ratio - S/H:ADC | 1:1 |
| Number of A/D Converters | 1 |
| Architecture | SAR |
| Reference Type | External |
| Voltage - Supply, Analog | 4.5V ~ 6.5V |
| Voltage - Supply, Digital | 4.5V ~ 6.5V |
| Operating Temperature | -40°C ~ 85°C |
| Package | 28-DIP (0.600", 15.24mm) |
| Supplier Device Package | 28-DIP |
| Mounting Type | Through Hole |
| Packaging | Tube |
개요
Description
### Key Features:
- Resolution: 8-bit (256 steps).
- Channels: 8 analog inputs (multiplexed).
- Conversion Time: ~100 µs.
- Interface: Parallel output (TTL-compatible).
- Supply Voltage: +5V.
- Operating Temp: 0°C to +70°C.
### Applications:
- Data acquisition systems.
- Sensor interfacing (temperature, light, etc.).
- Industrial control systems.
### Advantages:
- Simple interfacing with microprocessors.
- Built-in multiplexer reduces external components.
### Limitations:
- Moderate speed (not for high-frequency signals).
- Lower resolution compared to modern ADCs.
The ADC0809CCN is a cost-effective choice for basic analog-to-digital conversion tasks.
Equivalent
- ADC0808CCN (same functionality, slightly different specs)
- ADC0816CCN (16-channel variant)
- ADC0804 (single-channel, 8-bit ADC)
- MCP3008 (10-bit, 8-channel SPI ADC)
- ADS1015 (12-bit, I²C ADC)
These alternatives vary in resolution, interface, or channel count but serve similar purposes.
Features
- Resolution: 8-bit
- Channels: 8 multiplexed analog inputs
- Conversion Time: ~100 µs
- Supply Voltage: +5V DC
- Interface: Parallel output (TTL-compatible)
- Reference Voltage: External (typically +5V)
- Operating Temp: 0°C to +70°C
- Package: 28-pin DIP
It includes an on-chip 8-channel multiplexer, making it suitable for multi-sensor applications. No external zero or full-scale adjustment is required. Simple to interface with microprocessors.
Pinout
- 8 analog input channels (IN0–IN7) for multiplexed conversion.
- 8-bit digital output (D0–D7) for converted data.
- Control pins:
- START (initiates conversion).
- ALE (address latch enable for channel selection).
- EOC (end-of-conversion signal).
- OE (output enable for reading data).
- Clock input (CLK) for timing (typically 640 kHz).
- Reference voltage (VREF+ and VREF-) for scaling.
- Power supply (VCC = +5V, GND).
It uses successive approximation for conversion and operates at 100 μs per conversion.
Manufacturer
The ADC0809CCN is an 8-bit analog-to-digital converter (ADC) with an 8-channel multiplexer, widely used in data acquisition systems. National Semiconductor was recognized for its innovation in analog semiconductor solutions before its integration into TI.
Application
- Data Acquisition Systems – Converts sensor signals (temperature, pressure) to digital.
- Industrial Control – Monitors analog process variables.
- Consumer Electronics – Used in devices like multimeters and audio equipment.
- Automotive Systems – Measures parameters like fuel levels or engine sensors.
- Medical Instruments – Digitizes biomedical signals (ECG, blood pressure).
- Embedded Systems – Interfaces analog sensors with microcontrollers (e.g., 8051, PIC).
Its 8-channel input and easy interfacing make it versatile for low-speed, cost-sensitive applications.
Package
Frequently Asked Questions
Q: What is the maximum sampling rate of the ADC0809CCN?
A: The maximum sampling rate is 10k samples per second (10 kSPS), suitable for moderate-speed data acquisition applications.
Q: How many analog input channels does this ADC have?
A: It features 8 single-ended analog input channels via an internal multiplexer, controlled by the address lines.
Q: What is the resolution of the ADC0809CCN?
A: It is an 8-bit successive approximation register (SAR) ADC, providing 256 discrete output levels.
Q: Does it require an internal or external voltage reference?
A: It uses an external voltage reference (Reference Type: External), which must be provided to set the analog input range.
Q: What is the supply voltage range for this component?
A: Both analog and digital supplies operate from 4.5V to 6.5V, allowing single +5V supply operation.
Q: What is the data interface type of the ADC0809CCN?
A: It uses a parallel data interface, outputting an 8-bit digital word directly to a microcontroller or DSP.
Q: Is this part still in production?
A: No, its Part Status is "Obsolete". It is available from stock but not recommended for new designs.
