Overview
The MAX118CAI+ is a microprocessor-compatible, 8-bit, 8-channel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device 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. The MAX118CAI+ is designed for low-power applications, featuring a power-down mode that reduces current consumption to typically 1µA. It also includes a track/hold circuit, enabling the digitization of fast analog signals.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 8-bit |
| Number of Channels | 8 |
| Supply Voltage | +5V |
| Conversion Time | 660ns |
| Sampling Rate | 1 Msps |
| Power-Down Current | Typically 1µA |
| Package Type | 28-pin SSOP |
| Interface | Parallel, 8-bit data bus |
Key Features
- Microprocessor-compatible with direct connection to an 8-bit parallel data bus or system input port.
- 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.
- Includes track/hold circuitry for digitizing fast analog signals.
- Ratiometric operation enabled through input/reference configuration.
- Quick recovery from power-down mode, taking less than 200ns to return to normal operating mode.
Applications
The MAX118CAI+ is suitable for various applications requiring high-speed, low-power analog-to-digital conversion. These include:
- Data acquisition systems.
- Industrial control systems.
- Medical devices requiring precise analog signal digitization.
- Aerospace and defense applications where low power consumption is critical.
- Burst Mode applications where the ADC needs to wake up periodically to sample analog input signals.
Q & A
- What is the resolution of the MAX118CAI+ ADC?
The MAX118CAI+ has an 8-bit resolution.
- How many channels does the MAX118CAI+ support?
The MAX118CAI+ supports 8 channels.
- What is the supply voltage for the MAX118CAI+?
The MAX118CAI+ operates from a single +5V supply.
- What is the conversion time of the MAX118CAI+?
The conversion time is 660ns, resulting in a sampling rate of 1 Msps.
- How much current does the MAX118CAI+ consume in power-down mode?
In power-down mode, the current consumption is typically 1µA.
- What type of package is the MAX118CAI+ available in?
The MAX118CAI+ is available in a 28-pin SSOP package.
- How does the MAX118CAI+ interface with microprocessors?
The MAX118CAI+ can appear as a memory location or I/O port without external interface logic and uses latched, three-state buffer circuitry for direct connection to an 8-bit parallel data bus.
- What is the purpose of the track/hold circuit in the MAX118CAI+?
The track/hold circuit enables the digitization of fast analog signals.
- How quickly does the MAX118CAI+ recover from power-down mode?
The MAX118CAI+ recovers from power-down mode in less than 200ns.
- What are some typical applications for the MAX118CAI+?
Typical applications include data acquisition systems, industrial control systems, medical devices, aerospace and defense applications, and Burst Mode applications.
