Overview
The MAX122BCWG is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This component is part of the MAX120/MAX122 series, which are complete, BiCMOS, sampling 12-bit ADCs. These converters combine an on-chip track/hold (T/H) and a low-drift voltage reference, offering fast conversion speeds and low-power consumption. The MAX122 is designed for high-speed data acquisition applications, making it suitable for various industrial and embedded systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Conversion Time | 2.6µs | |
| Throughput Rate | Up to 333ksps | |
| Analog Input Voltage Range | -5V to +5V | |
| Clock Frequency Range | 0.1MHz to 5MHz | |
| Track/Hold Acquisition Time | 350ns | |
| Internal Reference | 20ppm/°C -5V | |
| Package Type | 24-SOIC, 24-SSOP, PDIP |
Key Features
- No missing codes over temperature.
- Fast conversion time of 2.6µs and throughput rates up to 333ksps.
- On-chip track/hold with 350ns acquisition time.
- Low-drift internal voltage reference with 20ppm/°C stability.
- Standard microprocessor (µP) interface with three-state data outputs compatible with 12-bit data buses.
- TTL/CMOS compatible logic inputs and outputs.
- Direct interface to FIFO buffers to reduce µP interrupt overhead.
Applications
The MAX122BCWG is suitable for a variety of high-speed data acquisition applications, including:
- Industrial control systems.
- Medical devices requiring precise analog-to-digital conversion.
- Embedded systems where low power consumption and high-speed conversion are critical.
- Remote sensor and data-acquisition systems.
Q & A
- What is the resolution of the MAX122BCWG ADC?
The MAX122BCWG has a 12-bit resolution.
- What is the conversion time of the MAX122BCWG?
The conversion time of the MAX122BCWG is 2.6µs.
- What is the throughput rate of the MAX122BCWG?
The throughput rate of the MAX122BCWG can be up to 333ksps.
- What is the analog input voltage range of the MAX122BCWG?
The analog input voltage range is from -5V to +5V.
- What is the clock frequency range for the MAX122BCWG?
The clock frequency range is from 0.1MHz to 5MHz.
- Does the MAX122BCWG have an internal voltage reference?
Yes, the MAX122BCWG includes a low-drift internal voltage reference with 20ppm/°C stability.
- What types of packages are available for the MAX122BCWG?
The MAX122BCWG is available in 24-SOIC, 24-SSOP, and PDIP packages.
- Is the MAX122BCWG compatible with standard microprocessor interfaces?
Yes, it has a standard microprocessor interface with three-state data outputs compatible with 12-bit data buses.
- Can the MAX122BCWG interface directly with FIFO buffers?
Yes, it can interface directly with FIFO buffers to reduce microprocessor interrupt overhead.
- What are some typical applications for the MAX122BCWG?
Typical applications include industrial control systems, medical devices, embedded systems, and remote sensor and data-acquisition systems.
