Overview
The MAX122AEAG is a 12-bit analog-to-digital converter (ADC) from Analog Devices Inc./Maxim Integrated. This BiCMOS, sampling ADC combines an on-chip track/hold (T/H) and a low-drift voltage reference, offering fast conversion speeds and low-power consumption. The device is part of the MAX120/MAX122 family, known for its high throughput rates and compatibility with various microprocessor interfaces.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Conversion Time | 2.6 µs | |
| Throughput Rate | 333 ksps | |
| Analog Input Voltage Range | -5V to +5V | |
| Clock Frequency Range | 0.1 MHz to 5 MHz | |
| Power Dissipation | 210 mW | |
| Signal-to-Noise Plus Distortion (SINAD) | 70 dB (min) | |
| Total Harmonic Distortion (THD) | -77 dB (max) | |
| Spurious-Free Dynamic Range (SFDR) | 78 dB (min) | |
| Logic Compatibility | TTL/CMOS |
Key Features
- 12-bit resolution with no missing codes over temperature
- Internal low-drift voltage reference (20 ppm/°C)
- Fast conversion time of 2.6 µs and throughput rate of 333 ksps
- Low noise and distortion: 70 dB SINAD, -77 dB THD
- Low power dissipation of 210 mW
- Separate track/hold control input
- Standard microprocessor interface with three-state data outputs
- Compatibility with FIFO buffers to reduce microprocessor interrupt overhead
Applications
- Digital Signal Processing
- Audio and Telecom Processing
- Speech Recognition and Synthesis
- High-Speed Data Acquisition
- Spectrum Analysis
- Data Logging Systems
Q & A
- What is the resolution of the MAX122AEAG ADC?
The MAX122AEAG has a 12-bit resolution.
- What is the conversion time of the MAX122AEAG?
The conversion time of the MAX122AEAG is 2.6 µs.
- What is the throughput rate of the MAX122AEAG?
The throughput rate of the MAX122AEAG is 333 ksps.
- What is the analog input voltage range of the MAX122AEAG?
The analog input voltage range is -5V to +5V.
- What is the clock frequency range for the MAX122AEAG?
The clock frequency range is from 0.1 MHz to 5 MHz.
- Is the MAX122AEAG compatible with TTL/CMOS logic?
- What are some typical applications of the MAX122AEAG?
Typical applications include digital signal processing, audio and telecom processing, speech recognition and synthesis, high-speed data acquisition, spectrum analysis, and data logging systems.
- Does the MAX122AEAG have an internal voltage reference?
- How much power does the MAX122AEAG dissipate?
The MAX122AEAG dissipates 210 mW of power.
- Can the MAX122AEAG interface directly with a FIFO buffer?
