Overview
The MAX1421CCM+TD is a 3.3V, 12-bit analog-to-digital converter (ADC) designed by Analog Devices Inc./Maxim Integrated. This ADC features a fully-differential input, a pipelined, 12-stage 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 converter 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 Rate | 40 Msps |
| Input Type | Differential, Single-Ended |
| Signal-to-Noise Ratio (SNR) | 66 dB at 15 MHz input frequency |
| Input Bandwidth | -3dB bandwidth of 400 MHz |
| Reference Voltage | Internal 2.048V precision bandgap reference |
| Power Supply | Single 3.3V supply |
| Power Consumption | 188 mW (typical) |
| Power-Down Modes | Reference power-down and full shutdown mode |
| Output Interface | Parallel, offset binary, CMOS-compatible three-state outputs |
| Package | 48-pin LQFP (7mm x 7mm) |
| Operating Temperature Range | Commercial: 0°C to +70°C, Extended Industrial: -40°C to +85°C |
Key Features
- Low-power consumption with 188mW typical power consumption
- High dynamic performance with 66dB SNR at 15MHz input frequency
- Fully-differential input stage with -3dB bandwidth of 400MHz
- Internal 2.048V precision bandgap reference with flexible reference structure
- Two power-down modes: reference power-down and full shutdown mode
- Parallel, offset binary, CMOS-compatible three-state outputs
- Pipelined, 12-stage ADC architecture with digital error correction
Applications
- Medical Ultrasound Imaging
- CCD Pixel Processing
- Data Acquisition
- IF and Baseband Digitization
- Radar
Q & A
- What is the resolution of the MAX1421 ADC?
The MAX1421 ADC has a resolution of 12 bits.
- What is the sampling rate of the MAX1421 ADC?
The sampling rate of the MAX1421 ADC is 40 Msps.
- What type of input does the MAX1421 ADC support?
The MAX1421 ADC supports both differential and single-ended inputs.
- What is the typical power consumption of the MAX1421 ADC?
The typical power consumption of the MAX1421 ADC is 188 mW.
- Does the MAX1421 ADC have power-down modes?
Yes, the MAX1421 ADC has two power-down modes: reference power-down and full shutdown mode.
- What is the output interface of the MAX1421 ADC?
The output interface of the MAX1421 ADC is parallel, offset binary, and CMOS-compatible three-state outputs.
- What is the package type and size of the MAX1421 ADC?
The MAX1421 ADC is available in a 48-pin LQFP package with a size of 7mm x 7mm.
- What are the operating temperature ranges for the MAX1421 ADC?
The operating temperature ranges for the MAX1421 ADC are commercial (0°C to +70°C) and extended industrial (-40°C to +85°C).
- What are some common applications of the MAX1421 ADC?
Common applications include Medical Ultrasound Imaging, CCD Pixel Processing, Data Acquisition, IF and Baseband Digitization, and Radar.
- Is the MAX1421 ADC RoHS compliant?
Yes, the MAX1421 ADC is RoHS compliant.
