Overview
The MAX19542EGK+TD is a high-performance, 12-bit analog-to-digital converter (ADC) designed by Analog Devices Inc./Maxim Integrated. This monolithic device is optimized for outstanding dynamic performance at high-IF frequencies, making it ideal for wideband applications. The MAX19542 operates at conversion rates up to 170Msps and consumes only 907mW, ensuring high-speed conversion with minimal power consumption. It features a fully differential, pipelined architecture that enhances accuracy and linearity while minimizing power usage.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Differential Clock Input Amplitude | CLKP, CLKN | 200 | 500 | mV-P-P | ||
| Clock Input Common-Mode Voltage Range | 1.15 ±0.25 | V | ||||
| Clock Differential Input Resistance | RCLK | 11 ±25% | kΩ | |||
| Clock Differential Input Capacitance | CCLK | 5 | pF | |||
| Signal-to-Noise Ratio (SNR) at 10MHz | SNR | fIN = 10MHz | 62.3 | 65 | dB | |
| Signal-to-Noise and Distortion (SINAD) at 10MHz | SINAD | fIN = 10MHz | 61.9 | 64.8 | dB | |
| Conversion Rate | Up to 170 | Msps | ||||
| Power Consumption | 907 | mW |
Key Features
- High-speed conversion up to 170Msps with low power consumption of 907mW.
- Excellent signal-to-noise ratio (SNR) of 65dB at 10MHz, remaining flat within 3dB for input tones up to 250MHz.
- Spurious-free dynamic range (SFDR) of 76.4dBc at 170Msps and an input frequency of 240MHz.
- Fully differential, pipelined architecture for high accuracy and linearity.
- Operates in either parallel mode or demux parallel/interleaved modes.
- Internal reference can be overdriven with an external source.
- Active-high RESET input with internal pulldown resistor.
- LVCMOS-compatible inputs for DEMUX, CLKDIV, and T/B output-format-select.
Applications
The MAX19542 is particularly suited for wideband applications, including:
- Power-amplifier predistortion in cellular base-station transceiver systems.
- Broadband communication systems.
- High-frequency signal processing in various wireless infrastructure and digital communication systems.
Q & A
- What is the maximum conversion rate of the MAX19542?
The MAX19542 can operate at conversion rates up to 170Msps.
- What is the power consumption of the MAX19542 at 170Msps?
The power consumption is 907mW.
- What is the signal-to-noise ratio (SNR) of the MAX19542 at 10MHz?
The SNR is 65dB at 10MHz.
- Can the MAX19542 operate in different output modes?
Yes, it can operate in parallel mode or demux parallel/interleaved modes.
- How does the MAX19542 handle clock inputs?
The device has differential clock inputs with a common-mode voltage range of 1.15 ±0.25V and a differential input resistance of 11 ±25% kΩ.
- What is the typical differential full-scale signal swing for the analog inputs?
The typical differential full-scale signal swing is 1.41V-P-P.
- Can the internal reference be overdriven with an external source?
Yes, the internal reference can be overdriven with an external source connected to REFIO.
- What is the purpose of the RESET input?
The RESET input controls the latency of the MAX19542 and has an internal pulldown resistor.
- What are the typical applications of the MAX19542?
The MAX19542 is typically used in power-amplifier predistortion in cellular base-station transceiver systems and other broadband communication systems.
- How does the MAX19542 ensure high accuracy and linearity?
The device uses a fully differential, pipelined architecture to ensure high accuracy and linearity.
