Overview
The MAX118EPI is a microprocessor-compatible, 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX118 series, which includes 8-channel ADCs. It operates from a single +5V supply and utilizes a half-flash technique to achieve a conversion time of 660ns, resulting in a sampling rate of 1 Msps (mega-samples per second).
The MAX118EPI is designed for low-power applications, featuring a power-down mode that reduces current consumption to typically 1µA. The device can quickly return from power-down mode to normal operating mode in less than 200ns, making it suitable for Burst Mode applications.
Key Specifications
| Specification | Value |
|---|---|
| Number of Channels | 8 |
| Resolution | 8-bit |
| Conversion Time | 660ns |
| Sampling Rate | 1 Msps |
| Supply Voltage | +5V |
| Power-Down Current | Typically 1µA |
| Package Type | 28-PDIP, SSOP |
| Interface | Parallel (latched, three-state buffer circuitry) |
Key Features
- Microprocessor-compatible design allowing the ADC to appear as a memory location or I/O port without external interface logic.
- Low-power operation with a power-down mode reducing current consumption to 1µA.
- Fast conversion time of 660ns and a sampling rate of 1 Msps.
- Track/hold circuitry enabling the digitization of fast analog signals.
- Ratiometric operation supported through the 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 MAX118EPI is suitable for various applications requiring high-speed, low-power analog-to-digital conversion. These include:
- Data acquisition systems.
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Burst Mode applications where the ADC needs to wake up from a low-power state at specified intervals to sample analog input signals.
Q & A
- What is the resolution of the MAX118EPI ADC?
The MAX118EPI has an 8-bit resolution.
- What is the conversion time of the MAX118EPI?
The conversion time is 660ns.
- What is the sampling rate of the MAX118EPI?
The sampling rate is 1 Msps (mega-samples per second).
- What is the supply voltage for the MAX118EPI?
The supply voltage is +5V.
- How much current does the MAX118EPI consume in power-down mode?
The current consumption in power-down mode is typically 1µA.
- What types of packages are available for the MAX118EPI?
The MAX118EPI is available in 28-PDIP and SSOP packages.
- What kind of interface does the MAX118EPI use?
The MAX118EPI uses a parallel interface with latched, three-state buffer circuitry.
- Is the MAX118EPI suitable for Burst Mode applications?
- Can the MAX118EPI be used in ratiometric configurations?
- How does the MAX118EPI simplify microprocessor interfaces?
The MAX118EPI simplifies microprocessor interfaces by allowing the ADC to appear as a memory location or I/O port without external interface logic.
