Overview
The MAX1122BEGK+TD is a high-performance, 10-bit analog-to-digital converter (ADC) designed by Maxim Integrated, now part of Analog Devices Inc. This monolithic ADC is optimized for outstanding dynamic performance at high intermediate frequencies (IF) up to 500MHz. It operates with conversion rates of up to 170Msps, making it ideal for wideband applications such as digital predistortion in cellular base-station transceiver systems.
The device features a single 1.8V supply, low power consumption of 460mW at 170Msps, and excellent signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR) across a wide frequency range. The MAX1122BEGK+TD is available in a 68-pin QFN package with an exposed pad, ensuring robust thermal performance.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 10 | |
| Sampling Rate | Up to 170 Msps | |
| Input Type | Differential or Single-Ended | |
| Data Interface | LVDS - Parallel | |
| Architecture | Pipelined | |
| Reference Type | External, Internal | |
| Analog Supply Voltage | 1.7 V to 1.9 V | V |
| Digital Supply Voltage | 1.7 V to 1.9 V | V |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package | 68-QFN Exposed Pad (10x10) | |
| Power Consumption | 460 mW at 170 Msps | mW |
| Signal-to-Noise Ratio (SNR) | 57.5 dB at 10 MHz | dB |
| Spurious-Free Dynamic Range (SFDR) | 72 dBc at 100 MHz | dBc |
Key Features
- High-Speed Conversion: Up to 170 Msps sampling rate.
- Low Power Consumption: 460 mW at 170 Msps.
- Excellent Dynamic Performance: High SNR and SFDR across a wide frequency range.
- Flexible Input: Differential or single-ended analog input, AC- or DC-coupled.
- Selectable Clock Circuit: On-chip divide-by-2 clock circuit for high clock frequencies up to 340 MHz.
- LVDS Digital Outputs: Compatible with LVDS standards for high-speed data transfer.
- Single Supply Voltage: 1.8V supply for both analog and digital sections.
- Robust Package: 68-pin QFN package with exposed pad for improved thermal performance.
Applications
- Cable-Head End Systems: For high-speed data processing in cable TV and broadband networks.
- Communications Test Equipment: Used in testing and measurement equipment for wireless and wired communications.
- Digital Predistortion Receivers: Ideal for cellular base-station transceiver systems to improve signal quality.
- Radar and Satellite Subsystems: For antenna array processing in radar and satellite communication systems.
- Wireless and Wired Broadband Communication: Suitable for high-speed data transmission in various broadband applications.
Q & A
- What is the maximum sampling rate of the MAX1122BEGK+TD?
The maximum sampling rate is up to 170 Msps.
- What is the power consumption of the MAX1122BEGK+TD at 170 Msps?
The power consumption is 460 mW at 170 Msps.
- What type of analog input does the MAX1122BEGK+TD support?
The device supports both differential and single-ended analog inputs, which can be AC- or DC-coupled.
- What is the signal-to-noise ratio (SNR) of the MAX1122BEGK+TD at 10 MHz?
The SNR is 57.5 dB at 10 MHz.
- What is the spurious-free dynamic range (SFDR) of the MAX1122BEGK+TD at 100 MHz?
The SFDR is 72 dBc at 100 MHz.
- What type of digital output interface does the MAX1122BEGK+TD use?
The device uses LVDS (Low-Voltage Differential Signaling) for its digital outputs.
- What is the operating temperature range of the MAX1122BEGK+TD?
The operating temperature range is -40°C to +85°C.
- What is the package type of the MAX1122BEGK+TD?
The device is packaged in a 68-pin QFN with an exposed pad.
- Does the MAX1122BEGK+TD have an internal reference?
Yes, the device has an internal reference, but it also supports external references.
- What are some common applications of the MAX1122BEGK+TD?
Common applications include cable-head end systems, communications test equipment, digital predistortion receivers, radar and satellite subsystems, and wireless and wired broadband communication systems.
