MAX1099

 Local and Remote Temperature Sensing
 12-Bit Resolution for Temperature and 10-Bit Resolution for Voltage Inputs
 ±1°C Accuracy from -40°C to +85°C
 Fully Differential Inputs
 Single-Supply Operation
      +4.75V to +5.25V (MAX1098)
      +2.7V to +3.6V (MAX1099)
 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface
 Internal Precision Voltage Reference
      2.50V (MAX1098)
      1.20V (MAX1099)
 Space-Saving 16-Pin SSOP Package

Temperature/Voltage Supervision of Workstations and Communications Equipment
Hand-Held Instruments
Medical Equipment
Industrial Process Control

V_DD to GND..............................................................-0.3V to +6V
SHO to GND.................................................-0.3V to (V_DD +0.3V)
Analog Inputs to GND
      (AIN0AIN5, REF)..................................-0.3V to (V_DD +0.3V)
Digital Inputs to GND (DIN, SCLK, CS)..........-0.3V to (V_DD +0.3V)
Digital Outputs to GND (DOUT, SSTRB).........-0.3V to (V_DD +0.3V)
Digital Output Sink Current .......................25mA
Maximum Current into Any Pin.....................50mA
Continuous Power Dissipation (T_A = +70°C)
    16-Pin SSOP (derate 8.00mW/°C above +70°C) .......667mW
Operating Temperature Range
    MAX109_ _EAE...............................................-40°C to +85°C
Junction Temperature..........................+150°C
Storage Temperature Range ...........................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C

The MAX1098/MAX1099 implement both local and remote temperature sensing with 10-bit resolution, using +5V and +3V supply voltages, respectively. Accuracy is ±1°C from 0°C to +70°C, with no calibration needed. The devices feature an algorithmic switched-capacitor analog-to-digital converter (ADC), on-chip clock, and 3-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™.

The MAX1098/MAX1099 also perform fully differential voltage measurements with 10-bit resolution and separate track-and-hold (T/N) for positive and negative inputs. Both devices accept versatile input modes consisting of two 3-channel signal pairs, five 1-channel signals relative to a floating common, or VDD/4 relative to ground. An external reference may be used for more accurate voltage measurements.

Typical power consumption is only 1.3mW (MAX1099). A shutdown mode and two standby modes provide multiple strategies for prolonging battery life in portable
applications that require limited sampling throughput.

The MAX1098/MAX1099 are available in 16-pin SSOP packages.