MAX110: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
Quality and Environmental Data
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
MAX110ACAPNo Longer AvailableMAX110ACAP+SSOP,;20 pin;57.9 mm²0°C to +70°CNo
MAX110ACAP+ActiveSSOP,;20 pin;57.9 mm²0°C to +70°CLead Free
MAX110ACAP-TNo Longer AvailableSSOP,;20 pin;57.9 mm²0°C to +70°CNo
MAX110ACPENo Longer AvailableMAX110ACPE+PDIP(N),;16 pin;158.4 mm²0°C to +70°CNo
MAX110ACPE+ActivePDIP(N),;16 pin;158.4 mm²0°C to +70°CLead Free
MAX110ACWENo Longer AvailableMAX110ACWE+SOIC(W),;16 pin;111.8 mm²0°C to +70°CNo
MAX110ACWE+ActiveSOIC(W),;16 pin;111.8 mm²0°C to +70°CLead Free
MAX110ACWE+TActiveSOIC(W),;16 pin;111.8 mm²0°C to +70°CLead Free
MAX110ACWE-TNo Longer AvailableMAX110ACWE+TW.SO;16 pin0°C to +70°CSee data sheet
MAX110AEAPNo Longer AvailableSSOP,;20 pin;57.9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX110AEAP-TNo Longer AvailableSSOP;20 pin-40°C to +85°CSee data sheet
MAX110AEPENo Longer AvailableMAX110AEPE+PDIP(N),;16 pin;158.4 mm²-40°C to +85°CNo
MAX110AEPE+ActivePDIP(N),;16 pin;158.4 mm²-40°C to +85°CLead Free
MAX110AEWENo Longer AvailableMAX110AEWE+SOIC(W),;16 pin;111.8 mm²-40°C to +85°CNo
MAX110AEWE+ActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
MAX110AEWE+TActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
MAX110AEWE-TNo Longer AvailableMAX110AEWE+TW.SO;16 pin-40°C to +85°CSee data sheet
MAX110BC/DNo Longer AvailableDICE;0°C to +70°CSee data sheet
MAX110BCAPNo Longer AvailableMAX110BCAP+SSOP,;20 pin;57.9 mm²0°C to +70°CNo
MAX110BCAP+ActiveSSOP,;20 pin;57.9 mm²0°C to +70°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX110BCAP+TActiveSSOP;0°C to +70°CSee data sheet
MAX110BCAP-TNo Longer AvailableMAX110BCAP+TSSOP;20 pin0°C to +70°CSee data sheet
MAX110BCPENo Longer AvailableMAX110BCPE+PDIP(N),;16 pin;158.4 mm²0°C to +70°CNo
MAX110BCPE+ActivePDIP(N),;16 pin;158.4 mm²0°C to +70°CLead Free
MAX110BCWENo Longer AvailableMAX110BCWE+SOIC(W),;16 pin;111.8 mm²0°C to +70°CNo
MAX110BCWE+ActiveSOIC(W),;16 pin;111.8 mm²0°C to +70°CLead Free
MAX110BCWE+TActiveSOIC(W),;16 pin;111.8 mm²0°C to +70°CLead Free
MAX110BCWE-TNo Longer AvailableMAX110BCWE+TW.SO;16 pin0°C to +70°CSee data sheet
MAX110BEAPNo Longer AvailableSSOP,;20 pin;57.9 mm²-40°C to +85°CNo
MAX110BEAP-TNo Longer AvailableSSOP;20 pin-40°C to +85°CSee data sheet
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX110BEPENo Longer AvailableMAX110BEPE+PDIP(N),;16 pin;158.4 mm²-40°C to +85°CNo
MAX110BEPE+ActivePDIP(N),;16 pin;158.4 mm²-40°C to +85°CLead Free
MAX110BEWENo Longer AvailableMAX110BEWE+SOIC(W),;16 pin;111.8 mm²-40°C to +85°CNo
MAX110BEWE+ActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
MAX110BEWE+TActiveW.SO;16 pin-40°C to +85°CSee data sheet
MAX110BEWE-TNo Longer AvailableMAX110BEWE+TW.SO;16 pin-40°C to +85°CSee data sheet
MAX110BMJENo Longer AvailableCDIP(N),;16 pin;173.5 mm²-55°C to +125°CNo
MAX110-MAX111.pdf MAX111
MAX110.pdf MAX110
MAX110-MAX111.pdf MAX111