MAX1296:420ksps, +5V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface

Smallest, Low-Power, Parallel-Output 12-Bit ADCs

The MAX1294/MAX1296 low-power, 12-bit analog-to-digital converters (ADCs) feature a successive-approximation ADC, automatic power-down, fast wake-up (2µs), an on-chip clock, +2.5V internal reference, and a high-speed 12-bit parallel interface. They operate with a single +5V analog supply. Power consumption is only 10mW at the maximum sampling rate of 420ksps. Two software-selectable power-down modes enable the MAX1294/MAX1296 to be shut down between conversions; accessing the parallel interface returns them to normal operation. Powering down between conversions can reduce supply below 10µA at lower sampling rates. Both devices offer software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation. In single-ended mode, the MAX1294 has six input channels and the MAX1296 has two (three input channels and one input channel, respectively, when in pseudo-differential mode). Excellent dynamic performance and low power, combined with ease of use and small package size, make these converters ideal for battery-powered and data-acquisition applications or for other circuits with demanding power-consumption and space requirements. The MAX1294/MAX1296 tri-states active-low INT when active-low CS goes high. Refer to MAX1266/MAX1268 if tri-stating active-low INT is not desired. The MAX1294 is offered in a 28-pin QSOP package, while the MAX1296 is available in a 24-pin QSOP. For pin-compatible +3V, 12-bit versions, see the MAX1295/MAX1297.

Key Features
  • 12-Bit Resolution, ±0.5 LSB Linearity
  • Single +5V Operation
  • Internal +2.5V Reference
  • Software-Configurable Analog Input Multiplexer
    • 6-Channel Single-Ended/3-Channel Pseudo-Differential (MAX1294)
    • 2-Channel Single-Ended/1-Channel Pseudo-Differential (MAX1296)
  • Software-Configurable Unipolar/Bipolar Analog Inputs
  • Low Current
    • 2.8mA (420ksps)
    • 1.0mA (100ksps)
    • 400µA (10ksps)
    • 2µA (Shutdown)
  • Internal 6MHz Full-Power Bandwidth Track/Hold
  • Parallel 12-Bit Interface
  • Small Footprint
    • 28-Pin QSOP (MAX1294)
    • 24-Pin QSOP (MAX1296)
MAX1294, MAX1296: Typical Operating Circuits
MAX1294, MAX1296: Typical Operating Circuits
Applications/Uses
  • Data Acquisition Systems
  • Data Logging
  • Energy Management
  • Industrial Controls Systems
  • Patient Monitoring
  • Touch Screens
DataSheet
titleDownload file
MAX1294-MAX1296 Data SheetMAX1294-MAX1296.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)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalminmaxmaxmaxSee Notes
MAX1294126420SARµP/12Both2.515.52.51.25-801QSOP/28$8.86 @1k
MAX12962QSOP/24$12.52 @1k
Design kits & evaluation modules
Related Products
  • MAX1267:265ksps, +3V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1268:420ksps, +5V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1264:400ksps, +5V, 8-/4-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1293:250ksps, +3V, 8-/4-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1297:265ksps, +3V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1295:265ksps, +3V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1290:400ksps, +5V, 8-/4-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1292:400ksps, +5V, 8-/4-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX196:6-Channel, Multirange, 5V, 12-Bit DAS with 12-Bit Bus Interface and Fault Protection
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1296ACEGNo Longer AvailableMAX1296ACEG+QSOP,;24 pin;54.2 mm²0°C to +70°CNo
MAX1296ACEG+ActiveQSOP,;24 pin;54.2 mm²0°C to +70°CLead Free
MAX1296ACEG+TActiveQSOP,;24 pin;54.2 mm²0°C to +70°CLead Free
MAX1296ACEG-TNo Longer AvailableMAX1296ACEG+TQSOP;24 pin0°C to +70°CSee data sheet
MAX1296AEEGNo Longer AvailableMAX1296AEEG+QSOP,;24 pin;54.2 mm²-40°C to +85°CNo
MAX1296AEEG+ActiveQSOP,;24 pin;54.2 mm²-40°C to +85°CLead Free
MAX1296AEEG+TActiveQSOP,;24 pin;54.2 mm²-40°C to +85°CLead Free
MAX1296AEEG-TNo Longer AvailableMAX1296AEEG+TQSOP;24 pin-40°C to +85°CSee data sheet
MAX1296BCEGNo Longer AvailableMAX1296BCEG+QSOP,;24 pin;54.2 mm²0°C to +70°CNo
MAX1296BCEG+ActiveQSOP,;24 pin;54.2 mm²0°C to +70°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1296BCEG+TActiveQSOP;24 pin0°C to +70°CSee data sheet
MAX1296BCEG-TNo Longer AvailableMAX1296BCEG+TQSOP,;24 pin;54.2 mm²0°C to +70°CNo
MAX1296BEEGNo Longer AvailableMAX1296BEEG+QSOP,;24 pin;54.2 mm²-40°C to +85°CNo
MAX1296BEEG+ActiveQSOP,;24 pin;54.2 mm²-40°C to +85°CLead Free
MAX1296BEEG+TActiveQSOP,;24 pin;54.2 mm²-40°C to +85°CLead Free
MAX1296BEEG-TNo Longer AvailableMAX1296BEEG+TQSOP;24 pin-40°C to +85°CSee data sheet
MAX1294-MAX1296.pdf MAX1296
MAX1294-MAX1296.pdf MAX1296