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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1099 Datasheet

10-Bit Serial-Output Temperature Sensors

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MAX1098/MAX1099
10-Bit Serial-Output Temperature Sensors
with 5-Channel ADC
General Description
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
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 (MAX1099). A
shutdown mode and two standby modes provide multiple
strategies for prolonging battery life in portable applica-
tions that require limited sampling throughput.
The MAX1098/MAX1099 are available in 16-pin SSOP
packages.
Applications
● Temperature/Voltage Supervision of
Workstations and Communications Equipment
● Hand-Held Instruments
● Medical Equipment
● Industrial Process Control
Pin Configuration
TOP VIEW
+
AIN1 1
SHO 2
AIN2 3
AIN3 4
AIN4 5
MAX1098
MAX1099
GND 6
SSTRB 7
CS 8
16 AIN0
15 AIN5
14 REF
13 GND
12 VDD
11 SCLK
10 DIN
9 COUT
SSOP
Typical Operating Circuit appears at end of data sheet.
Features
● 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
Ordering Information
PART
TEMP
RANGE
PIN-
PACKAGE
TEMP. SENSE
ACCURACY
(°C)
MAX1098CEAE+ -40°C to +85°C 16 SSOP
MAX1099CEAE+ -40°C to +85°C 16 SSOP
±4.0
±4.0
+Denotes a lead(Pb)-free/RoHS-compliant package.
QSPI is a trademark of Motorola, Inc.
MICROWIRE is a registered trademark of National
Semiconductor Corp.
Temperature Error
MAX1098
TEMPERATURE ERROR
vs. INTERNAL DIODE TEMPERATURE
1.0
0.5
0
-0.5
-1.0
-60 -40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
19-1728; Rev 1; 3/12


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1099 Datasheet

10-Bit Serial-Output Temperature Sensors

No Preview Available !

MAX1098/MAX1099
10-Bit Serial-Output Temperature Sensors
with 5-Channel ADC
Absolute Maximum Ratings
VDD to GND.............................................................-0.3V to +6V
SHO to GND.............................................. -0.3V to (VDD + 0.3V)
Analog Inputs to GND
(AIN0–AIN5, REF)................................. -0.3V to (VDD + 0.3V)
Digital Inputs to GND (DIN, SCLK, CS).... -0.3V to (VDD + 0.3V)
Digital Outputs to GND (DOUT, SSTRB).. -0.3V to (VDD + 0.3V)
Digital Output Sink Current.................................................25mA
Maximum Current into Any Pin...........................................50mA
Continuous Power Dissipation (TA = +70°C)
16-Pin SSOP (derate 7.1mW/°C above +70°C)........571.4mW
Operating Temperature Range
MAX109_CEAE............................................... -40°C to +85°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +150°C
Lead Temperature (soldering, 10s).................................. +300°C
Soldering Temperature (reflow)........................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(VDD = +4.75V to +5.25V (MAX1098), VDD = +2.7V to +3.6V (MAX1099), external reference, VREF = +2.5V (MAX1098), VREF = +1.2V
(MAX1099), fSCLK = 2.5MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
DC ACCURACY (Note 1)
Resolution
Relative Accuracy (Note 2)
Differential Nonlinearity
Offset Error
Offset Temperature Coefficient
Gain Error
VDD/4 Absolute Error
Gain Temperature Coefficient
Channel-to-Channel Offset
Matching
CONVERSION RATE
Conversion Time (Note 3)
Track/Hold Acquisition Time
Aperture Delay
Internal Clock Frequency
ANALOG INPUTS (AIN0AIN5)
Input Voltage Range (Note 4)
Common-Mode Range
Input Current (Note 5)
Input Capacitance
SYMBOL
CONDITIONS
RES
INL
DNL
Inputs AIN0−AIN5
Inputs AIN0−AIN5, offset nulled
tCONV
tACQ
tAPR
fCLK
Voltage measurement
Temperature measurement
Measurement with respect to IN-, Figure 1
MIN TYP MAX UNITS
10 Bits
±1 LSB
±1 LSB
±1 LSB
±10 µV/°C
±1 LSB
±1 LSB
±2 ppm/°C
±0.25
LSB
1.1
ms
2.2
16 µs
30 ns
57.6 62.3 65.5 kHz
-2VREF
+2VREF V
VDD
V
0.1 5 µA
16 pF
www.maximintegrated.com
Maxim Integrated 2


Part Number MAX1099
Description 10-Bit Serial-Output Temperature Sensors
Maker Maxim
Total Page 20 Pages
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