Overview
The MAX1422ECM+D, produced by Analog Devices Inc./Maxim Integrated, is a 12-bit, 20Msps analog-to-digital converter (ADC) designed for low-power, high dynamic performance applications. This ADC operates from a single 3.3V power supply and 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 use in imaging and digital communications, offering a high signal-to-noise ratio (SNR) of 67dB at a 5MHz input frequency.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Sampling Frequency | 20Msps |
| Signal-to-Noise Ratio (SNR) | 67dB at fIN= 5MHz |
| Power Supply | Single 3.3V |
| Power Consumption | 137mW (typical) |
| Power-Down Modes | Reference Shutdown Mode: 130mW, Shutdown Mode: 10µW |
| Input Type | Fully Differential |
| Input Bandwidth | -3dB bandwidth of 400MHz |
| Reference Voltage | Internal 2.048V Precision Bandgap Reference |
| Output Format | Parallel, Offset Binary, CMOS-compatible three-state outputs |
| Package Type | 48-Pin TQFP |
| Operating Temperature Range | Commercial: 0°C to +70°C, Extended Industrial: -40°C to +85°C |
Key Features
- Single 3.3V Power Supply
- Internal 2.048V Precision Bandgap Reference
- Differential Wideband Input T/H Amplifier
- Power-Down Modes: Reference Shutdown and Full Shutdown
- Space-Saving 48-Pin TQFP Package
- Fully Differential Input Stage with -3dB bandwidth of 400MHz
- Flexible Reference Structure for Internal or External Reference
- Parallel, Offset Binary, CMOS-compatible three-state outputs
Applications
- CCD Pixel Processing
- Data Acquisition
- IF and Baseband Digitization
- Medical Ultrasound Imaging
- Radar
Q & A
- What is the sampling frequency of the MAX1422ECM+D?
The MAX1422ECM+D has a sampling frequency of 20Msps. - What is the signal-to-noise ratio (SNR) of the MAX1422ECM+D at 5MHz input frequency?
The SNR is 67dB at a 5MHz input frequency. - What power supply does the MAX1422ECM+D use?
The MAX1422ECM+D operates from a single 3.3V power supply. - What are the power-down modes available in the MAX1422ECM+D?
The MAX1422ECM+D features two power-down modes: Reference Shutdown Mode and Full Shutdown Mode. - What is the input type of the MAX1422ECM+D?
The input type is fully differential, but it can also be operated with single-ended inputs. - What is the internal reference voltage of the MAX1422ECM+D?
The internal reference voltage is 2.048V from a precision bandgap reference. - What is the output format of the MAX1422ECM+D?
The output format is parallel, offset binary, CMOS-compatible three-state outputs. - In what package type is the MAX1422ECM+D available?
The MAX1422ECM+D is available in a 48-Pin TQFP package. - What are the operating temperature ranges for the MAX1422ECM+D?
The operating temperature ranges are Commercial: 0°C to +70°C and Extended Industrial: -40°C to +85°C. - What are some common applications of the MAX1422ECM+D?
Common applications include CCD Pixel Processing, Data Acquisition, IF and Baseband Digitization, Medical Ultrasound Imaging, and Radar.
