Overview
The MAX1421ECM+TD, produced by Analog Devices Inc./Maxim Integrated, is a 12-bit, 40Msps, 3.3V, low-power analog-to-digital converter (ADC). This device features a fully-differential input, pipelined, 12-stage ADC architecture with wideband track-and-hold (T/H) and digital error correction. It is optimized for low-power, high-dynamic performance applications in imaging and digital communications. The ADC operates from a single 3.3V supply, consuming only 188mW while delivering a typical signal-to-noise ratio (SNR) of 66dB at an input frequency of 15MHz and a sampling frequency of 40Msps.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Frequency | 40 Msps |
| Supply Voltage | 3.3V |
| Power Consumption | 188 mW (typical) |
| Signal-to-Noise Ratio (SNR) | 66 dB at fIN = 15 MHz |
| Input Bandwidth | -3 dB bandwidth of 400 MHz |
| Reference Voltage | Internal 2.048V precision bandgap reference |
| Output Format | Parallel, offset binary, CMOS-compatible three-state outputs |
| Package | 48-pin LQFP (7mm x 7mm) |
| Operating Temperature Range | 0°C to +70°C (commercial), -40°C to +85°C (extended industrial) |
Key Features
- Single 3.3V power supply
- Low power consumption with two power-down modes: reference power-down and full shutdown
- Differential, wideband input track-and-hold amplifier
- Internal 2.048V precision bandgap reference with flexible reference structure
- High dynamic performance with digital error correction
- Space-saving 48-pin LQFP package
- Parallel, offset binary, CMOS-compatible three-state outputs
Applications
- Medical Ultrasound Imaging
- CCD Pixel Processing
- Data Acquisition
- Radar
- IF and Baseband Digitization
Q & A
- What is the resolution of the MAX1421ECM+TD ADC?
The MAX1421ECM+TD has a resolution of 12 bits.
- What is the sampling frequency of the MAX1421ECM+TD?
The sampling frequency is 40 Msps.
- What is the power consumption of the MAX1421ECM+TD?
The typical power consumption is 188 mW.
- What is the signal-to-noise ratio (SNR) of the MAX1421ECM+TD at an input frequency of 15 MHz?
The SNR is 66 dB at an input frequency of 15 MHz.
- What is the input bandwidth of the MAX1421ECM+TD?
The input bandwidth is -3 dB at 400 MHz.
- Does the MAX1421ECM+TD have internal or external reference options?
The MAX1421ECM+TD has an internal 2.048V precision bandgap reference, but it also accommodates externally applied buffered or unbuffered references.
- What are the power-down modes available in the MAX1421ECM+TD?
The device features two power-down modes: reference power-down and full shutdown.
- What is the package type and size of the MAX1421ECM+TD?
The device is packaged in a 48-pin LQFP package with dimensions of 7mm x 7mm.
- What are the operating temperature ranges for the MAX1421ECM+TD?
The operating temperature ranges are 0°C to +70°C (commercial) and -40°C to +85°C (extended industrial).
- What are some typical applications of the MAX1421ECM+TD?
Typical applications include Medical Ultrasound Imaging, CCD Pixel Processing, Data Acquisition, Radar, and IF and Baseband Digitization.
