MAX1090:400ksps, +5V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface

The MAX1090/MAX1092 low-power, 10-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, byte-wide parallel interface. The devices operate with a single +5V analog supply and feature a VLOGIC pin that allows them to interface directly with a +2.7V to +5.5V digital supply. Power consumption is only 10mW (VDD = VLOGIC) at a 400ksps max sampling rate. Two software-selectable power-down modes enable the MAX1090/MAX1092 to be shut down between conversions; accessing the parallel interface returns them to normal operation. Powering down between conversions can cut supply current to under 10µA at reduced sampling rates. Both devices offer software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation. In single-ended mode, the MAX1090 has eight input channels and the MAX1092 has four input channels (four and two input channels, 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 MAX1090/MAX1092 tri-states active-low INT when active-low CS goes high. Refer to the MAX1060/MAX1064 if tri-stating active-low INT is not desired. The MAX1090 is available in a 28-pin QSOP package, while the MAX1092 comes in a 24-pin QSOP. For pin-compatible +3V, 10-bit versions, refer to the MAX1091/MAX1093 data sheet.

Key Features
  • 10-Bit Resolution, ±0.5 LSB Linearity
  • +5V Single-Supply Operation
  • User-Adjustable Logic Level (+2.7V to +5.5V)
  • Internal +2.5V Reference
  • Software-Configurable Analog Input Multiplexer
    • 8-Channel Single-Ended/4-Channel Pseudo-Differential (MAX1090)
    • 4-Channel Single-Ended/2-Channel Pseudo-Differential (MAX1092)
  • Software-Configurable Unipolar/Bipolar Analog Inputs
  • Low Current:
    • 2.5mA (400ksps)
    • 1.0mA (100ksps)
    • 400µA (10ksps)
    • 2µA (Shutdown)
  • Internal 6MHz Full-Power Bandwidth Track/Hold
  • Byte-Wide Parallel (8 + 2) Interface
  • Small Footprint:
    • 28-Pin QSOP (MAX1090)
    • 24-Pin QSOP (MAX1092)
MAX1090, MAX1092: Typical Operating Circuit
MAX1090, MAX1092: Typical Operating Circuit
Applications/Uses
  • Data Acquisition Systems
  • Data Logging
  • Energy Management
  • Industrial Control Systems
  • Patient Monitoring
  • Touch Screens
DataSheet
titleDownload file
MAX1090-MAX1092 Data SheetMAX1090-MAX1092.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
MAX1090108400SARµP/8Both2.515.52.51.2560-721QSOP/28$4.18 @1k
MAX10924QSOP/24$5.97 @1k
Related Products
  • MAX1063:250ksps, +3V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1064:400ksps, +5V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1093:250ksps, +3V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1091:250ksps, +3V, 8-/4-Channel, 10-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
  • MAX151:300kHz, 10-Bit ADC with Reference and Track/Hold
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1090ACEINo Longer AvailableMAX1090ACEI+QSOP,;28 pin;61.9 mm²0°C to +70°CNo
MAX1090ACEI+ActiveQSOP,;28 pin;61.9 mm²0°C to +70°CLead Free
MAX1090ACEI+TActiveQSOP,;28 pin;61.9 mm²0°C to +70°CLead Free
MAX1090ACEI-TNo Longer AvailableMAX1090ACEI+TQSOP;28 pin0°C to +70°CSee data sheet
MAX1090AEEINo Longer AvailableMAX1090AEEI+QSOP,;28 pin;61.9 mm²-40°C to +85°CNo
MAX1090AEEI+ActiveQSOP,;28 pin;61.9 mm²-40°C to +85°CLead Free
MAX1090AEEI+TActiveQSOP,;28 pin;61.9 mm²-40°C to +85°CLead Free
MAX1090AEEI-TNo Longer AvailableMAX1090AEEI+TQSOP;28 pin-40°C to +85°CSee data sheet
MAX1090BCEINo Longer AvailableMAX1090BCEI+QSOP,;28 pin;61.9 mm²0°C to +70°CNo
MAX1090BCEI+ActiveQSOP,;28 pin;61.9 mm²0°C to +70°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1090BCEI+TActiveQSOP,;28 pin;61.9 mm²0°C to +70°CLead Free
MAX1090BCEI-TNo Longer AvailableMAX1090BCEI+TQSOP,;28 pin;61.9 mm²0°C to +70°CNo
MAX1090BEEINo Longer AvailableMAX1090BEEI+QSOP,;28 pin;61.9 mm²-40°C to +85°CNo
MAX1090BEEI+ActiveQSOP,;28 pin;61.9 mm²-40°C to +85°CLead Free
MAX1090BEEI+TActiveQSOP,;28 pin;61.9 mm²-40°C to +85°CLead Free
MAX1090BEEI-TNo Longer AvailableMAX1090BEEI+TQSOP;28 pin-40°C to +85°CSee data sheet
MAX1090-MAX1092.pdf MAX1092
MAX1090-MAX1092.pdf MAX1092