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8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges

8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V and 0 to +5V Analog Input Ranges

Product Details

Key Features

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 14
# Input Channels 2
Conv. Rate (ksps) (max) 526
Data Bus µP/14
ADC Architecture SAR
Diff/S.E. Input S.E. Only
Internal VREF (V) (nominal) 2.5
External VREF (V) (min) 2
External VREF (V) (max) 3
Unipolar VIN (V) (max) 5
INL (±LSB) 0.8
Package/Pins LQFP/48
Budgetary
Price (See Notes)
9.38
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Simplified Block Diagram

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Parameters

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 14
# Input Channels 2
Conv. Rate (ksps) (max) 526
Data Bus µP/14
ADC Architecture SAR
Diff/S.E. Input S.E. Only
Internal VREF (V) (nominal) 2.5
External VREF (V) (min) 2
External VREF (V) (max) 3
Unipolar VIN (V) (max) 5
INL (±LSB) 0.8
Package/Pins LQFP/48
Budgetary
Price (See Notes)
9.38

Key Features

  • 8-/4-/2-Channel, 14-Bit ADCs
    • ±1.5 LSB INL, ±1 LSB DNL, No Missing Codes
    • 90dBc SFDR, -86dBc THD, 76.5dB SINAD, 77dB SNR at 100kHz Input
  • On-Chip T/H Circuit for Each Channel
    • 10ns Aperture Delay
    • 50ps Channel-to-Channel T/H Matching
  • Fast Conversion Time
    • One Channel in 1.6µs
    • Two Channels in 1.9µs
    • Four Channels in 2.5µs
    • Eight Channels in 3.7µs
  • High Throughput
    • 526ksps/ch for One Channel
    • 455ksps/ch for Two Channels
    • 357ksps/ch for Four Channels
    • 250ksps/ch for Eight Channels
  • Flexible Input Ranges
    • 0 to +5V (MAX1316/MAX1317/MAX1318)
    • ±5V (MAX1320/MAX1321/MAX1322)
    • ±10V (MAX1324/MAX1325/MAX1326)
  • No Calibration Needed
  • 14-Bit, High-Speed, Parallel Interface
  • Internal or External Clock
  • +2.5V Internal Reference or +2.0V to +3.0V External Reference
  • +5V Analog Supply, +3V to +5V Digital Supply
    • 46mA Analog Supply Current (typ)
    • 1.6mA Digital Supply Current (max)
    • Shutdown and Power-Saving Modes
  • 48-Pin TQFP Package (7mm x 7mm Footprint)

Applications/Uses

  • Multiphase Motor Control
  • Power-Factor Monitoring and Correction
  • Power-Grid Synchronization
  • Vibration and Waveform Analysis

Description

The MAX1316–MAX1318/MAX1320–MAX1322/MAX1324–MAX1326 14-bit, analog-to-digital converters (ADCs) offer two, four, or eight independent input channels. Independent track/hold (T/H) circuitry provides simultaneous sampling for each channel. The MAX1316/MAX1317/MAX1318 have a 0 to +5V input range with ±6.0V fault-tolerant inputs. The MAX1320/MAX1321/MAX1322 have a ±5V input range with ±16.5V fault-tolerant inputs. The MAX1324/MAX1325/MAX1326 have a ±10V input range with ±16.5V fault-tolerant inputs. These ADCs convert two channels in 2µs, and up to eight channels in 3.8µs, and have an 8-channel throughput of 250ksps per channel. Other features include a 10MHz T/H input bandwidth, internal clock, internal (+2.5V) or external (+2.0V to +3.0V) reference, and power-saving modes.

A 16.6MHz, 14-bit, bidirectional, parallel interface provides the conversion results and accepts digital configuration inputs.

These devices operate from a +4.75V to +5.25V analog supply and a separate +2.7V to +5.25V digital supply, and consume less than 50mA total supply current.

These devices come in a 48-pin TQFP package and operate over the extended -40°C to +85°C temperature range.

Simplified Block Diagram

MAX1316, MAX1317, MAX1318, MAX1320, MAX1321, MAX1322, MAX1324, MAX1325, MAX1326: Functional Diagram MAX1316, MAX1317, MAX1318, MAX1320, MAX1321, MAX1322, MAX1324, MAX1325, MAX1326: 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 .