MAX111：Low-Cost, 2-Channel, ±14-Bit Serial ADCs

The MAX110/MAX111 analog-to-digital converters (ADCs) use an internal auto-calibration technique to achieve 14-bit resolution plus overrange, with no external components. Operating supply current is only 550µA (MAX110) and reduces to 4µA in power-down mode, making these ADCs ideal for high-resolution battery-powered or remote-sensing applications. A fast serial interface simplifies signal routing and opto-isolation, saves microcontroller pins, and offers compatibility with SPI™, QSPI™, and MICROWIRE™. The MAX110 operates with ±5V supplies, and converts differential analog signals in the -3V to +3V range. The MAX111 operates with a single +5V supply and converts differential analog signals in the ±1.5V range, or single-ended signals in the 0V to +1.5V range. Internal calibration allows for both offset and gain-error correction under microprocessor (µP) control. Both devices are available in space-saving 16-pin DIP and SO packages, as well as an even smaller 20-pin SSOP package.

Key Features
  • Single +5V Supply (MAX111)
  • Two Differential Input Channels
  • 14-Bit Resolution Plus Sign and Overrange
  • 0.03% Linearity (MAX110) 0.05% Linearity (MAX111)
  • Low Power Consumption:
    • 550µA (MAX110)
    • 640µA (MAX111)
    • 4µA Shutdown Current
  • Up to 50 Conversions/sec
  • 50Hz/60Hz Rejection
  • Auto-Calibration Mode
  • No External Components Required
  • 16-Pin DIP/SO, 20-Pin SSOP
MAX110, MAX111: Typical Operating Circuit
MAX110, MAX111: Typical Operating Circuit
Applications/Uses
  • Data Acquisition
  • Panel Meters
  • Process Control
  • Temperature Measurement
  • Weigh Scales
DataSheet
titleDownload file
MAX110-MAX111 Data SheetMAX110-MAX111.pdf
Parametrics
Part NumberResolution
(bits)		Input Chan.Conv. Rate
(ksps)		ADC ArchitectureData BusDiff/S.E. InputExternal VREF
(V)		External VREF
(V)		Unipolar VIN
(V)		Bipolar VIN
(±V)		INL
(±LSB)		Package/PinsBudgetary
Price
ADCmaxminmaxmaxmaxSee Notes
MAX1101420.05Sigma-DeltaSPIBoth-5.35.332.754.9CDIP(N)/16
PDIP(N)/16
SOIC(W)/16
SSOP/20		$8.02 @1k
MAX11101.85.3CDIP(N)/16
PDIP(N)/16
SOIC(W)/16
SSOP/20
Design kits & evaluation modules
Related Products
  • MAX1358B：16-Bit, Data-Acquisition System with ADC, DACs, UPIOs, RTC, Voltage Monitors, and Temp Sensor
  • MAX1359B：16-Bit, Data-Acquisition System with ADC, DAC, UPIOs, RTC, Voltage Monitors, and Temp Sensor
  • MAX1415：16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs
  • MX7705：16-Bit, Low-Power, 2-Channel, Sigma-Delta ADC
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX111ACAPNo Longer AvailableMAX111ACAP+SSOP,;20 pin;57.9 mm²0°C to +70°CNo
MAX111ACAP+ActiveSSOP,;20 pin;57.9 mm²0°C to +70°CLead Free
MAX111ACAP+TActiveSSOP,;20 pin;57.9 mm²0°C to +70°CLead Free
MAX111ACAP-TNo Longer AvailableMAX111ACAP+TSSOP;20 pin0°C to +70°CSee data sheet
MAX111ACPENo Longer AvailableMAX111ACPE+PDIP(N),;16 pin;158.4 mm²0°C to +70°CNo
MAX111ACPE+ActivePDIP(N),;16 pin;158.4 mm²0°C to +70°CLead Free
MAX111ACWENo Longer AvailableMAX111ACWE+SOIC(W),;16 pin;111.8 mm²0°C to +70°CNo
MAX111ACWE+ActiveSOIC(W),;16 pin;111.8 mm²0°C to +70°CLead Free
MAX111ACWE+TActiveSOIC(W),;16 pin;111.8 mm²0°C to +70°CLead Free
MAX111ACWE-TNo Longer AvailableMAX111ACWE+TW.SO;16 pin0°C to +70°CSee data sheet
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX111AEAPNo Longer AvailableSSOP,;20 pin;57.9 mm²-40°C to +85°CNo
MAX111AEAP-TNo Longer AvailableSSOP;-40°C to +85°CSee data sheet
MAX111AEPENo Longer AvailableMAX111AEPE+PDIP(N),;16 pin;158.4 mm²-40°C to +85°CNo
MAX111AEPE+ActivePDIP(N),;16 pin;158.4 mm²-40°C to +85°CLead Free
MAX111AEWENo Longer AvailableMAX111AEWE+SOIC(W),;16 pin;111.8 mm²-40°C to +85°CNo
MAX111AEWE+ActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
MAX111AEWE+TActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
MAX111AEWE-TNo Longer AvailableMAX111AEWE+TW.SO;16 pin-40°C to +85°CSee data sheet
MAX111BC/DNo Longer AvailableDICE;0°C to +70°CSee data sheet
MAX111BCAPNo Longer AvailableMAX111BCAP+SSOP,;20 pin;57.9 mm²0°C to +70°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX111BCAP+ActiveSSOP,;20 pin;57.9 mm²0°C to +70°CLead Free
MAX111BCAP+TActiveSSOP,;20 pin;57.9 mm²0°C to +70°CLead Free
MAX111BCAP-TNo Longer AvailableMAX111BCAP+TSSOP;20 pin0°C to +70°CSee data sheet
MAX111BCPENo Longer AvailableMAX111BCPE+PDIP(N),;16 pin;158.4 mm²0°C to +70°CNo
MAX111BCPE+ActivePDIP(N),;16 pin;158.4 mm²0°C to +70°CLead Free
MAX111BCWENo Longer AvailableMAX111BCWE+SOIC(W),;16 pin;111.8 mm²0°C to +70°CNo
MAX111BCWE+ActiveSOIC(W),;16 pin;111.8 mm²0°C to +70°CLead Free
MAX111BCWE+TActiveSOIC(W),;16 pin;111.8 mm²0°C to +70°CLead Free
MAX111BCWE-TNo Longer AvailableMAX111BCWE+TW.SO;16 pin0°C to +70°CSee data sheet
MAX111BEAPNo Longer AvailableMAX111BEAP+SSOP,;20 pin;57.9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX111BEAP+ActiveSSOP,;20 pin;57.9 mm²-40°C to +85°CLead Free
MAX111BEAP+TActiveSSOP,;20 pin;57.9 mm²-40°C to +85°CLead Free
MAX111BEAP-TNo Longer AvailableMAX111BEAP+TSSOP;20 pin-40°C to +85°CSee data sheet
MAX111BEPENo Longer AvailableMAX111BEPE+PDIP(N),;16 pin;158.4 mm²-40°C to +85°CNo
MAX111BEPE+ActivePDIP(N),;16 pin;158.4 mm²-40°C to +85°CLead Free
MAX111BEWENo Longer AvailableMAX111BEWE+SOIC(W),;16 pin;111.8 mm²-40°C to +85°CNo
MAX111BEWE+ActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
MAX111BEWE+TActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
MAX111BEWE-TNo Longer AvailableMAX111BEWE+TW.SO;16 pin-40°C to +85°CSee data sheet
MAX111BMJENo Longer AvailableCDIP(N),;16 pin;173.5 mm²-55°C to +125°CNo
MAX110-MAX111.pdf MAX111
MAX110-MAX111.pdf MAX111
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