MAX1321:8-/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

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.

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)
MAX1316, MAX1317, MAX1318, MAX1320, MAX1321, MAX1322, MAX1324, MAX1325, MAX1326: Functional Diagram
MAX1316, MAX1317, MAX1318, MAX1320, MAX1321, MAX1322, MAX1324, MAX1325, MAX1326: Functional Diagram
Applications/Uses
  • Multiphase Motor Control
  • Power-Factor Monitoring and Correction
  • Power-Grid Synchronization
  • Vibration and Waveform Analysis
DataSheet
titleDownload file
MAX1316-MAX1326 Data SheetMAX1316-MAX1326.pdf
Parametrics
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
Bipolar VIN
(±V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalminmaxmaxmaxSee Notes
MAX1316148526SARµP/14S.E. Only2.5235-76-900.8LQFP/48$18.47 @1k
MAX131745-LQFP/48$6.12 @1k
MAX131825-LQFP/48$4.07 @1k
MAX13208-5LQFP/48$18.18 @1k
MAX13214-5LQFP/48$7.41 @1k
MAX13222-5LQFP/48$4.88 @1k
MAX13248-10LQFP/48$20.70 @1k
MAX13254-10LQFP/48$7.41 @1k
MAX13262-10LQFP/48$4.88 @1k
Design kits & evaluation modules
Related Products
  • MAX1308:8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges
  • MAX1304:8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges
  • MAX1312:8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges
  • MAX125:2x4-Channel, Simultaneous-Sampling, 14-Bit DAS
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1321ECMNo Longer AvailableMAX1321ECM+LQFP;48 pin-40°C to +85°CSee data sheet
MAX1321ECM+ActiveLQFP,;48 pin;LQFP;-40°C to +85°CLead Free
MAX1321ECM+TActiveLQFP,;48 pin;LQFP;-40°C to +85°CLead Free
MAX1321ECM-TNo Longer AvailableMAX1321ECM+LQFP;48 pin-40°C to +85°CSee data sheet
MAX1316-MAX1326.pdf MAX1326
MAX1316-MAX1326.pdf MAX1326