MAX1068:Multichannel, 14-Bit, 200ksps Analog-to-Digital Converters

Multichannel, 14-Bit, 200ksps ADCs in QSOP

The MAX1067/MAX1068 low-power, multichannel, 14-bit analog-to-digital converters (ADCs) feature a successive-approximation ADC, integrated +4.096V reference, a reference buffer, an internal oscillator, automatic power-down, and a high-speed SPI™/QSPI™/MICROWIRE™-compatible interface. The MAX1067/MAX1068 operate with a single +5V analog supply and feature a separate digital supply, allowing direct interfacing with +2.7V to +5.5V digital logic. The MAX1067/MAX1068 consume only 3.6mA (AVDD = DVDD = +5V) at 200ksps when using an external reference. AutoShutdown™ reduces the supply current to 185µA at 10ksps and to less than 10µA at reduced sampling rates. The MAX1067 includes a 4-channel input multiplexer, and the MAX1068 accepts up to eight analog inputs. In addition, digital signal processor (DSP)-initiated conversions are simplified with the DSP frame-sync input and output featured in the MAX1068. The MAX1068 includes a data-bit transfer input to select between 8-bit-wide or 16-bit-wide data-transfer modes. Both devices feature a scan mode that converts each channel sequentially or one channel continuously. Excellent dynamic performance and low power, combined with ease of use and an integrated reference, make the MAX1067/MAX1068 ideal for control and data-acquisition operations or for other applications with demanding power consumption and space requirements. The MAX1067 is available in a 16-pin QSOP package, and the MAX1068 is available in a 24-pin QSOP package. Both devices are guaranteed over the commercial (0°C to +70°C) and extended (-40°C to +85°C) temperature ranges. Use the MAX1168 evaluation kit to evaluate the MAX1068.

Key Features
  • 14-Bit Resolution, ±0.5 LSB INL and ±1 LSB DNL (max)
  • +5V Single-Supply Operation
  • Adjustable Logic Level (+2.7V to +5.25V)
  • Input Voltage Range: 0 to VREF
  • Internal (+4.096V) or External (+3.8V to AVDD) Reference
  • Internal Track/Hold, 4MHz Input Bandwidth
  • Internal or External Clock
  • SPI/QSPI/MICROWIRE-Compatible Serial Interface, MAX1068 Performs DSP-Initiated Conversions
  • 8-Bit-Wide or 16-Bit-Wide Data-Transfer Mode (MAX1068 Only)
  • 4-Channel (MAX1067) or 8-Channel (MAX1068) Input Mux
    • Scan Mode Sequentially Converts Multiple Channels or One Channel Continuously
  • Low Power
    • 3.6mA at 200ksps
    • 1.85mA at 100ksps
    • 185µA at 10ksps
    • 0.6µA in Full Power-Down Mode
  • Small Package Size
    • 16-Pin QSOP (MAX1067)
    • 24-Pin QSOP (MAX1068)
MAX1067, MAX1068: Pin Configuration
MAX1067, MAX1068: Pin Configuration
Applications/Uses
  • Accelerometer Measurements
  • Data Acquisition Systems
  • Industrial I/O Modules
  • Industrial Process Controls
  • Motor Control
  • Thermocouple Measurements
DataSheet
titleDownload file
MAX1067-MAX1068 Data SheetMAX1067-MAX1068.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)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalminmaxmaxSee Notes
MAX1067144200SARSPIS.E. Only4.0963.854.09684-981.5QSOP/16$11.36 @1k
MAX10688QSOP/24$13.05 @1k
Quality and Environmental Data
Related Products
  • MAX11101:14-Bit, +5V, 200ksps ADC with 10µA Shutdown
  • MAX1033:8- and 4-Channel, ±3 x VREF Multirange Inputs, Serial 14-Bit ADCs
  • MAX1035:8-/4-Channel, ±VREF Multirange Inputs, Serial 14-Bit ADCs
  • MAX1188:16-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range
  • MAX1158:14-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range
  • MAX1069:58.6ksps, 14-Bit, 2-Wire Serial ADC in a 14-Pin TSSOP
  • MAX1065:Low-Power, 14-Bit Analog-to-Digital Converters with Parallel Interface
  • MAX1066:Low-Power, 14-Bit Analog-to-Digital Converters with Parallel Interface
  • MAX1062:14-Bit, +5V, 200ksps ADC with 10µA Shutdown
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1068ACEGNo Longer AvailableMAX1068ACEG+QSOP,;24 pin;54.2 mm²0°C to +70°CNo
MAX1068ACEG+ActiveQSOP,;24 pin;54.2 mm²0°C to +70°CLead Free
MAX1068ACEG+TActiveQSOP,;24 pin;54.2 mm²0°C to +70°CLead Free
MAX1068ACEG-TNo Longer AvailableMAX1068ACEG+TQSOP;24 pin0°C to +70°CSee data sheet
MAX1068AEEGNo Longer AvailableMAX1068AEEG+QSOP,;24 pin;54.2 mm²-40°C to +85°CNo
MAX1068AEEG+ActiveQSOP,;24 pin;54.2 mm²-40°C to +85°CLead Free
MAX1068AEEG+TActiveQSOP,;24 pin;54.2 mm²-40°C to +85°CLead Free
MAX1068AEEG-TNo Longer AvailableMAX1068AEEG+TQSOP;24 pin-40°C to +85°CSee data sheet
MAX1068BCEGNo Longer AvailableMAX1068BCEG+QSOP,;24 pin;54.2 mm²0°C to +70°CNo
MAX1068BCEG+ActiveQSOP,;24 pin;54.2 mm²0°C to +70°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1068BCEG+TActiveQSOP;24 pin0°C to +70°CSee data sheet
MAX1068BCEG-TNo Longer AvailableMAX1068BCEG+TQSOP;24 pin0°C to +70°CSee data sheet
MAX1068BEEGNo Longer AvailableMAX1068BEEG+QSOP,;24 pin;54.2 mm²-40°C to +85°CNo
MAX1068BEEG+ActiveQSOP,;24 pin;54.2 mm²-40°C to +85°CLead Free
MAX1068BEEG+TActiveQSOP,;24 pin;54.2 mm²-40°C to +85°CLead Free
MAX1068BEEG-TNo Longer AvailableMAX1068BEEG+TQSOP;24 pin-40°C to +85°CSee data sheet
MAX1068CCEGNo Longer AvailableMAX1068CCEG+QSOP,;24 pin;54.2 mm²0°C to +70°CNo
MAX1068CCEG+ActiveQSOP,;24 pin;54.2 mm²0°C to +70°CLead Free
MAX1068CCEG+TActiveQSOP,;24 pin;54.2 mm²0°C to +70°CLead Free
MAX1068CCEG-TNo Longer AvailableMAX1068CCEG+TQSOP;24 pin0°C to +70°CSee data sheet
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1068CEEGNo Longer AvailableMAX1068CEEG+QSOP,;24 pin;54.2 mm²-40°C to +85°CNo
MAX1068CEEG+ActiveQSOP,;24 pin;54.2 mm²-40°C to +85°CLead Free
MAX1068CEEG+TActiveQSOP,;24 pin;54.2 mm²-40°C to +85°CLead Free
MAX1068CEEG-TNo Longer AvailableMAX1068CEEG+TQSOP;24 pin-40°C to +85°CSee data sheet
MAX1067-MAX1068.pdf MAX1068
MAX1068.pdf MAX1068
MAX1067-MAX1068.pdf MAX1068