MAX1084A, MAX1084B:400ksps/300ksps, Single-Supply, Low-Power, Serial 10-Bit ADCs with Internal Reference

The MAX1084/MAX1085 10-bit analog-to-digital converters (ADCs) combine a high-bandwidth track/hold, a serial interface with high conversion speed, an internal +2.5V reference, and low power consumption. The MAX1084 operates from a single +4.5V to +5.5V supply; the MAX1085 operates from a single +2.7V to +3.6V supply. The 3-wire serial interface connects directly to SPI™/QSPI™/MICROWIRE™ devices without external logic. The devices use an external serial-interface clock to perform successive-approximation analog-to-digital conversions. Low power combined with ease of use and small package size make these converters ideal for remote-sensor and data-acquisition applications, or for other circuits with demanding power consumption and space requirements. The MAX1084/MAX1085 are available in 8-pin SO packages. These devices are pin-compatible, higher-speed versions of the MAX1242/MAX1243; for more information, refer to the respective data sheets.

Key Features
  • Single-Supply Operation
    • +4.5V to +5.5V (MAX1084)
    • +2.7V to +3.6V (MAX1085)
  • 10-Bit Resolution
  • 400ksps Sampling Rate (MAX1084)
  • Internal Track/Hold
  • Internal +2.5V Reference
  • Low Power: 2.5mA (400ksps)
  • SPI/QSPI/MICROWIRE 3-Wire Serial Interface
  • Pin-Compatible, High-Speed Upgrade to MAX1242/MAX1243
  • 8-Pin SO Package
MAX1084, MAX1084A, MAX1084B, MAX1085, MAX1085A, MAX1085B: Typical Operating Circuit
MAX1084, MAX1084A, MAX1084B, MAX1085, MAX1085A, MAX1085B: Typical Operating Circuit
Applications/Uses
  • Battery-Powered Applications
  • Data Acquisition
  • Medical Instruments
  • Pen Digitizers
  • Portable Data Logging
  • Process Control
DataSheet
TitleDownload file
MAX1084-MAX1085B Data SheetMAX1084-MAX1085B.pdf
Parametrics
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
Unipolar VIN
(V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalmaxSee Notes
MAX1084101400SARSPIS.E. Only2.52.560-701SOIC(N)/8$6.23 @1k
MAX1085300SOIC(N)/8
Related Products
  • MAX1392:1.5V to 3.6V, 357ksps, 1-Channel True-Differential/2-Channel Single-Ended, 10-Bit, SAR ADCs
  • MAX1088:150ksps, 10-Bit, 2-Channel Single-Ended, and 1-Channel True-Differential ADCs in SOT23 and TDFN
  • MAX1284:400ksps/300ksps, Single-Supply, Low-Power, Serial 12-Bit ADCs with Internal Reference
  • MAX1283:300ksps/400ksps, Single-Supply, 4-Channel, Serial 12-Bit ADCs with Internal Reference
  • MAX1282:300ksps/400ksps, Single-Supply, 4-Channel, Serial 12-Bit ADCs with Internal Reference
  • MAX159:+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin µMAX
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1084ACSANo Longer AvailableMAX1084ACSA+SOIC(N),;8 pin;30.9 mm²0°C to +70°CNo
MAX1084ACSA+ActiveSOIC(N),;8 pin;30.9 mm²0°C to +70°CLead Free
MAX1084ACSA+TActiveSOIC(N),;8 pin;30.9 mm²0°C to +70°CLead Free
MAX1084ACSA-TNo Longer AvailableMAX1084ACSA+TN.SO;8 pin0°C to +70°CSee data sheet
MAX1084AESANo Longer AvailableMAX1084AESA+SOIC(N),;8 pin;30.9 mm²-40°C to +85°CNo
MAX1084AESA+ActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
MAX1084AESA+TActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
MAX1084AESA-TNo Longer AvailableMAX1084AESA+TN.SO;8 pin-40°C to +85°CSee data sheet
MAX1084-MAX1085B.pdf MAX1085B
MAX1084-MAX1085B.pdf MAX1085B