MAX1437B

Octal, 12-Bit, 50Msps, 1.8V ADC with Serial LVDS Outputs

Functionally Compatible with the MAX1437, but Provides a Much Smaller Footprint


Please check latest availability status for a specific part variant.

Description

The MAX1437B octal, 12-bit analog-to-digital converter (ADC) features fully differential inputs, a pipelined architecture, and digital error correction incorporating a fully differential signal path. This ADC is optimized for low-power and high-dynamic performance in medical imaging instrumentation and digital communications applications. The MAX1437B operates from a 1.8V single supply and consumes only 768mW (96mW per channel) while delivering a 70.2dB (typ) signal-to-noise ratio (SNR) at a 5.3MHz input frequency. In addition to low operating power, the MAX1437B features a low-power standby mode for idle periods.

An internal 1.24V precision bandgap reference sets the full-scale range of the ADC. A flexible reference structure allows the use of an external reference for applications requiring increased accuracy or a different input voltage range. The reference architecture is optimized for low noise.

A single-ended clock controls the data-conversion process. An internal duty-cycle equalizer compensates for wide variations in clock duty cycle. An on-chip phase-locked loop (PLL) generates the high-speed serial low-voltage differential signal (LVDS) clock.

The MAX1437B has self-aligned serial LVDS outputs for data, clock, and frame-alignment signals. The output data is presented in two's complement format.

The MAX1437B offers a maximum sample rate of 50Msps. This device is available in a small, 10mm x 10mm x 0.8mm, 68-pin TQFN package with exposed pad and is specified for the extended industrial (-40°C to +85°C) temperature range.
MAX1437B: Functional Diagram MAX1437B: Functional Diagram Enlarge+

Key Features

  • Excellent Dynamic Performance
    • 70.2dB SNR at 5.3MHz
    • 98dBc SFDR at 5.3MHz
    • 82dB Channel Isolation at 5.3MHz
  • Ultra-Low Power
    • 96mW per Channel (Normal Operation)
  • Serial LVDS Outputs
  • Pin-Selectable LVDS/SLVS (Scalable Low-Voltage Signal) Mode
  • LVDS Outputs Support Up to 30in FR-4 Backplane Connections
  • Test Mode for Digital Signal Integrity
  • Fully Differential Analog Inputs
  • Wide Differential Input Voltage Range (1.4VP-P)
  • On-Chip 1.24V Precision Bandgap Reference
  • Clock Duty-Cycle Equalizer
  • Compact, 68-Pin TQFN Package with Exposed Pad
  • Evaluation Kit Available (Order MAX1437BEVKIT)

Applications/Uses

  • Instrumentation
  • Multichannel Communications
  • Ultrasound and Medical Imaging

See parametric specs for High-Speed ADCs (> 5Msps) (50)


Part NumberInput Chan.Resolution
(bits)
Sample Rate
(Msps)
AC Specs
(MHz)
SFDR
(dBc)
ENOB
(bits)
SINAD
(dB)
SNR
(dB)
THD
(dB)
DNL
(±LSB)
INL
(±LSB)
Full Pwr. BW
(MHz)
ICC
(mA)
Data Bus InterfacePackage/PinsBudgetary
Price
max ≥@ fINminminmintypSee Notes
MAX1437B 81250209311.469.770.1-930.250.3100348Serial LVDS
TQFN/68
$88.70 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Product Reliability Reports: MAX1437B.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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