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

Product Details

The MAX1437 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 MAX1437 operates from a 1.8V single supply and consumes only 768mW (96mW per channel) while delivering a 69.9dB (typ) signal-to-noise ratio (SNR) at a 5.3MHz input frequency. In addition to low operating power, the MAX1437 features a power-down 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 PLL generates the high-speed serial low-voltage differential signal (LVDS) clock.

The MAX1437 has self-aligned serial LVDS outputs for data, clock, and frame-alignment signals. The output data is presented in two's complement or binary format.

The MAX1437 offers a maximum sample rate of 50Msps. See the Pin-Compatible Versions table in the full data sheet for higher-and lower-speed versions. This device is available in a small, 14mm x 14mm x 1mm, 100-pin TQFP package with exposed pad and is specified for the extended industrial (-40°C to +85°C) temperature range.

Key Features

  • Excellent Dynamic Performance
    • 69.9dB SNR at 5.3MHz
    • 96dBc SFDR at 5.3MHz
    • 95dB Channel Isolation
  • 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 30 Inches 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, 100-Pin TQFP Package with Exposed Pad
  • Evaluation Kit Available (Order MAX1437EVKIT)

Applications/Uses

  • Instrumentation
  • Multichannel Communications
  • Ultrasound and Medical Imaging
Parametric specs for High-Speed ADCs (> 5Msps)
Resolution (bits) 12
# Input Channels 8
Sample Rate (Msps) (max) 50
Data Bus Interface Serial LVDS
AC Specs (MHz) (@ fIN) 19.3
SFDR (dBc) (min) 90
ENOB (bits) (min) 11.3
SINAD (dB) 69.7
SNR (dB) 69.7
THD (dB) -90
DNL (±LSB) 1
INL (±LSB) 2.5
Package/Pins TQFP/100
Budgetary
Price (See Notes)
$80.62 @1k
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Simplified Block Diagram

MAX1437: Functional Diagram MAX1437: Functional Diagram Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

Description

The MAX1434/MAX1436/MAX1437/MAX1438 evaluation kits (EV kits) are fully assembled and tested circuit boards that contain all the components necessary to evaluate the performance of this family of octal 10-/12-bit analog-to-digital converters (ADCs). These ADCs accept differential analog input signals. The EV kits generate these signals from user-provided single-ended input sources. The EV kits' digital outputs can be easily sampled with a user-provided high-speed logic analyzer or data-acquisition system. The EV kits also feature an on-board deserializer to simplify integration with standard logic analysis systems. The EV kits operate from 1.8V and 3.3V (plus 1.5V if the FPGA is used) power supplies and include circuitry that generates a clock signal from an AC signal provided by the user.

View Details

Features

  • Low-Voltage and Low-Power Operation
  • Optional On-Board Clock-Shaping Circuitry
  • Serial Scalable Low-Voltage Signaling (SLVS)/Low-Voltage Differential Signaling (LVDS) Outputs
  • On-Board LVPECL Differential Output Drivers
  • On-Board Deserializer
  • LVDS Test Mode
  • Fully Assembled and Tested

Description

The MAX1434/MAX1436/MAX1437/MAX1438 evaluation kits (EV kits) are fully assembled and tested circuit boards that contain all the components necessary to evaluate the performance of this family of octal 10-/12-bit analog-to-digital converters (ADCs). These ADCs accept differential analog input signals. The EV kits generate these signals from user-provided single-ended input sources. The EV kits' digital outputs can be easily sampled with a user-provided high-speed logic analyzer or data-acquisition system. The EV kits also feature an on-board deserializer to simplify integration with standard logic analysis systems. The EV kits operate from 1.8V and 3.3V (plus 1.5V if the FPGA is used) power supplies and include circuitry that generates a clock signal from an AC signal provided by the user.

View Details

Features

  • Low-Voltage and Low-Power Operation
  • Optional On-Board Clock-Shaping Circuitry
  • Serial Scalable Low-Voltage Signaling (SLVS)/Low-Voltage Differential Signaling (LVDS) Outputs
  • On-Board LVPECL Differential Output Drivers
  • On-Board Deserializer
  • LVDS Test Mode
  • Fully Assembled and Tested

Description

The MAX1434/MAX1436/MAX1437/MAX1438 evaluation kits (EV kits) are fully assembled and tested circuit boards that contain all the components necessary to evaluate the performance of this family of octal 10-/12-bit analog-to-digital converters (ADCs). These ADCs accept differential analog input signals. The EV kits generate these signals from user-provided single-ended input sources. The EV kits' digital outputs can be easily sampled with a user-provided high-speed logic analyzer or data-acquisition system. The EV kits also feature an on-board deserializer to simplify integration with standard logic analysis systems. The EV kits operate from 1.8V and 3.3V (plus 1.5V if the FPGA is used) power supplies and include circuitry that generates a clock signal from an AC signal provided by the user.

View Details

Features

  • Low-Voltage and Low-Power Operation
  • Optional On-Board Clock-Shaping Circuitry
  • Serial Scalable Low-Voltage Signaling (SLVS)/Low-Voltage Differential Signaling (LVDS) Outputs
  • On-Board LVPECL Differential Output Drivers
  • On-Board Deserializer
  • LVDS Test Mode
  • Fully Assembled and Tested

Description

The MAX1434/MAX1436/MAX1437/MAX1438 evaluation kits (EV kits) are fully assembled and tested circuit boards that contain all the components necessary to evaluate the performance of this family of octal 10-/12-bit analog-to-digital converters (ADCs). These ADCs accept differential analog input signals. The EV kits generate these signals from user-provided single-ended input sources. The EV kits' digital outputs can be easily sampled with a user-provided high-speed logic analyzer or data-acquisition system. The EV kits also feature an on-board deserializer to simplify integration with standard logic analysis systems. The EV kits operate from 1.8V and 3.3V (plus 1.5V if the FPGA is used) power supplies and include circuitry that generates a clock signal from an AC signal provided by the user.

View Details

Features

  • Low-Voltage and Low-Power Operation
  • Optional On-Board Clock-Shaping Circuitry
  • Serial Scalable Low-Voltage Signaling (SLVS)/Low-Voltage Differential Signaling (LVDS) Outputs
  • On-Board LVPECL Differential Output Drivers
  • On-Board Deserializer
  • LVDS Test Mode
  • Fully Assembled and Tested

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Support & Training

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Filtered Search

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Parameters

Parametric specs for High-Speed ADCs (> 5Msps)
Resolution (bits) 12
# Input Channels 8
Sample Rate (Msps) (max) 50
Data Bus Interface Serial LVDS
AC Specs (MHz) (@ fIN) 19.3
SFDR (dBc) (min) 90
ENOB (bits) (min) 11.3
SINAD (dB) 69.7
SNR (dB) 69.7
THD (dB) -90
DNL (±LSB) 1
INL (±LSB) 2.5
Package/Pins TQFP/100
Budgetary
Price (See Notes)
$80.62 @1k

Key Features

  • Excellent Dynamic Performance
    • 69.9dB SNR at 5.3MHz
    • 96dBc SFDR at 5.3MHz
    • 95dB Channel Isolation
  • 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 30 Inches 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, 100-Pin TQFP Package with Exposed Pad
  • Evaluation Kit Available (Order MAX1437EVKIT)

Applications/Uses

  • Instrumentation
  • Multichannel Communications
  • Ultrasound and Medical Imaging

Description

The MAX1437 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 MAX1437 operates from a 1.8V single supply and consumes only 768mW (96mW per channel) while delivering a 69.9dB (typ) signal-to-noise ratio (SNR) at a 5.3MHz input frequency. In addition to low operating power, the MAX1437 features a power-down 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 PLL generates the high-speed serial low-voltage differential signal (LVDS) clock.

The MAX1437 has self-aligned serial LVDS outputs for data, clock, and frame-alignment signals. The output data is presented in two's complement or binary format.

The MAX1437 offers a maximum sample rate of 50Msps. See the Pin-Compatible Versions table in the full data sheet for higher-and lower-speed versions. This device is available in a small, 14mm x 14mm x 1mm, 100-pin TQFP package with exposed pad and is specified for the extended industrial (-40°C to +85°C) temperature range.

Simplified Block Diagram

MAX1437: Functional Diagram MAX1437: Functional Diagram Zoom icon

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