Overview
The MAX114CNG+ is a microprocessor-compatible, 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This component is part of the MAX114/MAX118 family, which includes 4-channel and 8-channel ADCs. The MAX114 operates from a single +5V supply and is designed for low-power, high-speed applications. It uses a half-flash technique to achieve a conversion time of 660ns, corresponding to a sampling rate of 1Msps. The device also features a power-down mode that reduces current consumption to typically 1µA, making it suitable for burst mode applications where the ADC wakes up from a low-power state at specified intervals to sample analog input signals.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 8-bit |
| Number of Channels | 4 channels (MAX114) |
| Supply Voltage | +5V |
| Conversion Time | 660ns (1Msps) |
| Power-Down Current | Typically 1µA |
| Package Options | 24-pin DIP or SSOP |
| Interface | Parallel interface with latched, three-state buffer circuitry |
Key Features
- Microprocessor-compatible design for easy integration with microprocessors.
- Low-power operation with a power-down mode reducing current consumption to 1µA.
- Fast conversion time of 660ns (1Msps) using a half-flash technique.
- Track/hold circuitry to digitize fast analog signals.
- Ratiometric operation enabled by input/reference configuration.
- Latched, three-state buffer circuitry for direct connection to an 8-bit parallel microprocessor data bus or system input port.
Applications
The MAX114 is suitable for various applications requiring high-speed, low-power analog-to-digital conversion. These include:
- Burst mode applications where the ADC needs to wake up from a low-power state at specified intervals.
- Industrial control systems that require fast and accurate analog signal conversion.
- Medical devices where low power consumption and high-speed conversion are critical.
- Automotive and aerospace systems that need reliable and efficient ADCs.
Q & A
- What is the resolution of the MAX114 ADC?
The MAX114 has an 8-bit resolution.
- How many channels does the MAX114 ADC have?
The MAX114 has 4 channels.
- What is the supply voltage for the MAX114 ADC?
The MAX114 operates from a single +5V supply.
- What is the conversion time of the MAX114 ADC?
The conversion time is 660ns, corresponding to a sampling rate of 1Msps.
- What is the power-down current of the MAX114 ADC?
The power-down current is typically 1µA.
- What package options are available for the MAX114 ADC?
The MAX114 is available in 24-pin DIP or SSOP packages.
- What type of interface does the MAX114 ADC use?
The MAX114 uses a parallel interface with latched, three-state buffer circuitry.
- Is the MAX114 ADC microprocessor-compatible?
Yes, the MAX114 is microprocessor-compatible and can appear as a memory location or I/O port without external interface logic.
- What is the purpose of the track/hold circuitry in the MAX114 ADC?
The track/hold circuitry allows the ADC to digitize fast analog signals.
- Can the MAX114 ADC operate in ratiometric mode?
Yes, the MAX114 enables ratiometric operation through its input/reference configuration.
