Overview
The MAX118EAI+ is a microprocessor-compatible, 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX114/MAX118 family, which operates from a single +5V supply and is designed for low-power, multichannel applications.
The MAX118EAI+ is particularly suited for applications requiring high-speed conversion and low power consumption. It uses a half-flash technique to achieve a conversion time of 660ns, making it suitable for various high-speed data acquisition tasks.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 8-bit |
| Number of Channels | 8-channel |
| Supply Voltage | +5V |
| Conversion Time | 660ns (1Msps) |
| Input Type | Single-Ended |
| Architecture | Half-Flash |
| Signal to Noise Ratio (SNR) | 70 dB |
| Power-Down Current | Typically 1µA |
| Package Options | 28-pin DIP or SSOP |
Key Features
- Microprocessor-compatible interface, allowing it to appear as a memory location or I/O port without external interface logic.
- Low-power operation with a power-down mode that reduces current consumption to typically 1µA.
- Fast conversion time of 660ns (1Msps) using a half-flash technique.
- Ratiometric operation enabled through input/reference configuration.
- Data outputs use latched, three-state buffer circuitry for direct connection to an 8-bit parallel microprocessor data bus or system input port.
- Quick recovery from power-down mode, returning to normal operating mode in less than 200ns.
Applications
- Data acquisition systems
- Industrial control systems
- Medical devices
- Aerospace and defense applications
- Automotive systems
- Portable instruments
- POS terminals
Q & A
- What is the resolution of the MAX118EAI+ ADC?
The MAX118EAI+ has an 8-bit resolution.
- How many channels does the MAX118EAI+ support?
The MAX118EAI+ supports 8 channels.
- What is the supply voltage for the MAX118EAI+?
The supply voltage is +5V.
- What is the conversion time of the MAX118EAI+?
The conversion time is 660ns (1Msps).
- What is the power-down current of the MAX118EAI+?
The power-down current is typically 1µA.
- What package options are available for the MAX118EAI+?
The MAX118EAI+ is available in 28-pin DIP or SSOP packages.
- How does the MAX118EAI+ interface with a microprocessor?
The MAX118EAI+ has a microprocessor-compatible interface, allowing it to appear as a memory location or I/O port without external interface logic.
- What is the signal to noise ratio (SNR) of the MAX118EAI+?
The SNR is 70 dB.
- Can the MAX118EAI+ operate in ratiometric mode?
Yes, the MAX118EAI+ supports ratiometric operation through its input/reference configuration.
- How quickly does the MAX118EAI+ recover from power-down mode?
The MAX118EAI+ recovers from power-down mode in less than 200ns.
