Overview
The MAX1428 is a high-speed, high-performance analog-to-digital converter (ADC) designed by Analog Devices Inc./Maxim Integrated. This 15-bit ADC features a fully differential wideband track-and-hold (T/H) and is optimized for multichannel, multimode receivers. It is particularly suited for applications requiring stringent dynamic performance, such as cellular base-station transceiver systems and antenna array processing. The MAX1428 operates with a noise floor of -78.4dBFS, enabling the design of receivers with superior sensitivity.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 15 bits |
| Sampling Rate | Up to 80 Msps |
| Noise Floor | -78.4 dBFS |
| Signal-to-Noise Ratio (SNR) | 73.9 dB at fIN = 70 MHz |
| Spurious-Free Dynamic Range (SFDR) | -82 dBc for two-tone input, -83 dBc/91 dBc for single-tone input at fIN = 70 MHz |
| Analog Supply Voltage | 5 V |
| Digital Supply Voltage | 3 V |
| Full-Scale Input Range | 2.56 VP-P |
| Output Format | CMOS-compatible, two's-complement |
| Output Driver Power Supply Range | 2.3 V to 3.5 V |
| Package Type | 8mm x 8mm, 56-pin thin QFN with exposed paddle (EP) |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Fully differential wideband track-and-hold (T/H) and 15-bit converter core
- Excellent dynamic performance with a noise floor of -78.4 dBFS
- High signal-to-noise ratio (SNR) of 73.9 dB at fIN = 70 MHz
- Spurious-free dynamic range (SFDR) of -82 dBc for two-tone input and -83 dBc/91 dBc for single-tone input at fIN = 70 MHz
- Less than 0.25 ps sampling jitter
- CMOS-compatible, two's-complement digital outputs
- Separate data valid clock and overrange outputs
- Flexible input clock buffer
- Operating from analog 5V and digital 3V supplies
- Full-scale input range of 2.56 VP-P
Applications
- Antenna Array Processing
- Cellular Base-Station Transceiver Systems (BTS)
- E911 Location Receivers
- Multistandard Receivers
- Power Amplifier Linearity Correction
- Single- and Multicarrier Receivers
- Wireless Local Loop (WLL)
Q & A
- What is the resolution of the MAX1428 ADC?
The MAX1428 is a 15-bit analog-to-digital converter. - What is the maximum sampling rate of the MAX1428?
The MAX1428 can sample up to 80 Msps. - What is the noise floor of the MAX1428?
The noise floor of the MAX1428 is -78.4 dBFS. - What is the signal-to-noise ratio (SNR) of the MAX1428 at 70 MHz input frequency?
The SNR is 73.9 dB at fIN = 70 MHz. - What is the spurious-free dynamic range (SFDR) of the MAX1428 for two-tone input?
The SFDR for two-tone input is -82 dBc. - What are the supply voltages for the MAX1428?
The MAX1428 operates from an analog 5V and a digital 3V supply. - What is the full-scale input range of the MAX1428?
The full-scale input range is 2.56 VP-P. - What is the output format of the MAX1428?
The output is in CMOS-compatible, two's-complement format. - What is the operating temperature range of the MAX1428?
The operating temperature range is -40°C to +85°C. - What package type is the MAX1428 available in?
The MAX1428 is available in an 8mm x 8mm, 56-pin thin QFN package with exposed paddle (EP).
