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15-Bit, 80Msps ADC with -78.4dBFS Noise Floor for IF Applications

Product Details

Key Features

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Key Features

  • 80Msps Minimum Sampling Rate
  • -78.4dBFS Noise Floor
  • Excellent Dynamic Performance
    • 73.9dB SNR at fIN = 70MHz and AIN = -2dBFS
    • 83dBc/91dBc Single-Tone SFDR1/SFDR2 at fIN = 70MHz and AIN = -2dBFS
    • -82dB Multitone SFDR at fIN1 = 69MHz and fIN2 = 71MHz
  • Less than 0.25ps Sampling Jitter
  • Fully Differential Analog Input Voltage Range of 2.56VP-P
  • CMOS-Compatible Two's-Complement Data Output
  • Separate Data Valid Clock and Overrange Outputs
  • Flexible-Input Clock Buffer
  • EV Kit Available for MAX1428 (Order MAX1427EVKIT)

Applications/Uses

  • 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)

Description

The MAX1428 is a 5V, high-speed, high-performance analog-to-digital converter (ADC) featuring a fully differential wideband track-and-hold (T/H) and a 15-bit converter core. The MAX1428 is optimized for multichannel, multimode receivers, which require the ADC to meet very stringent dynamic performance requirements. With a noise floor of -78.4dBFS, the MAX1428 allows for the design of receivers with superior sensitivity.

The MAX1428 achieves two-tone, spurious-free dynamic range (SFDR) of -82dBc for input tones of 69MHz and 71MHz. Its excellent signal-to-noise ratio (SNR) of 73.9dB and single-tone SFDR performance (SFDR1/SFDR2) of 83dBc/91dBc at fIN = 70MHz and a sampling rate of 80Msps make this part ideal for high-performance digital receivers.

The MAX1428 operates from an analog 5V and a digital 3V supply, features a 2.56VP-P full-scale input range, and allows for a sampling speed of up to 80Msps. The input T/H operates with a -1dB full-power bandwidth of 260MHz.

The MAX1428 features parallel, CMOS-compatible outputs in two's-complement format. To enable the interface with a wide range of logic devices, this ADC provides a separate output driver power-supply range of 2.3V to 3.5V. The MAX1428 is manufactured in an 8mm x 8mm, 56-pin thin QFN package with exposed paddle (EP) for low thermal resistance, and is specified for the extended industrial (-40°C to +85°C) temperature range.

Note that IF parts MAX1418, MAX1428, and MAX1430 (see Pin-Compatible Higher/Lower Speed Versions Selection table in the full data sheet) are recommended for applications that require high dynamic performance for input frequencies greater than fCLK/3. Unlike its baseband counterpart MAX1427, the MAX1428 is optimized for input frequencies greater than fCLK/3.

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .