MAX1299C

12-Bit Serial-Output Temperature Sensors with 5-Channel ADC

12-Bit ADCs with ±1° C Internal Temperature Sensor Also Measure Remote Temperatures


Please check latest availability status for a specific part variant.

Description

The MAX1298/MAX1299 implement local and remote temperature sensing with 12-bit resolution, using +5V and +3V supply voltages, respectively. Accuracy is ±1°C from 0 to +70°C, with no calibration needed. The devices feature an algorithmic switched-capacitor analog-to-digital converter (ADC), an on-chip clock, and a 3-wire serial interface compatible with SPI, QSPI™, and MICROWIRE®.

The MAX1298/MAX1299 also perform fully differential voltage measurements with 12-bit resolution and separate track-and-hold (T/H) for positive and negative inputs. Both devices accept versatile input modes consisting of two 3-channel signal pairs, five 1-channel signals relative to an AIN5, or VDD/4 relative to ground. An external reference may be used for more accurate voltage measurements.

Typical power consumption is only 1.3mW (MAX1299). A shutdown mode and two standby modes provide multiple strategies for prolonging battery life in portable applications that require limited sampling throughput.

The MAX1298/MAX1299 are available in 16-pin SSOP packages.

MAX1298, MAX1298A, MAX1298B, MAX1298C, MAX1299, MAX1299A, MAX1299B, MAX1299C: Functional Diagram MAX1298, MAX1298A, MAX1298B, MAX1298C, MAX1299, MAX1299A, MAX1299B, MAX1299C: Functional Diagram Enlarge+

Key Features

  • Local and Remote Temperature Sensing
  • 12-Bit Resolution for Temperature and Voltage Inputs
  • ±1°C Accuracy from -40°C to +85°C
  • Fully Differential Inputs
  • Single-Supply Operation
    • +4.75V to +5.25V (MAX1298)
    • +2.7V to +3.6V (MAX1299)
  • 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface
  • Internal Precision Voltage Reference
    • 2.50V (MAX1298)
    • 1.20V (MAX1299)
  • Space-Saving 16-Pin SSOP Package

Applications/Uses

  • Handheld Instruments (PDAs, Palmtops)
  • Industrial Process Controls
  • Medical Equipment

See parametric specs for Precision ADCs (< 5Msps) (437)


Part NumberResolution
(bits)
Input Chan.ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
Bipolar VIN
(±V)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCnominalminmaxmaxmaxSee Notes
MAX1298 125SARSPIDiff. Only2.50.82.5551
SSOP/16
$4.72 @1k
MAX1299 1.21.232.4
SSOP/16

See parametric specs for Temperature Sensors (113)


Part NumberSensor TypeInterfaceChannelsAccuracy
(±°C)
Parasite Pwr.Temp. Resolution
(bits)
Package/Pins
MAX1298 Local3-Wire/SPIOne1No12
See Data Sheet
MAX1299 
See Data Sheet

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Additional Resources

Temperature Family by Product Type
Request Reliability Report for: MAX1299C 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

 
Status:
Package:
Temperature:

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