MAX1298CEAE+ Maxim Integrated Products, MAX1298CEAE+ Datasheet - Page 11

• Manufacturer Part Number: MAX1298CEAE+
• Description: IC TEMP SENS W/ADC 16-SSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1298CEAE+

• Function: Temp Monitoring System (Sensor)
• Topology: ADC, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 85°C, External Sensor
• Output Type: MICROWIRE™, QSPI™, SPI™
• Output Alarm: No
• Output Fan: No
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Full Temp Accuracy: +/- 1 C
• Digital Output - Bus Interface: Serial (3-Wire)
• Digital Output - Number Of Bits: 12 bit
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX1298/MAX1299 are low-power, serial-output,
multichannel ADCs with temperature-sensing capability
for thermostatic, process-control, and monitoring appli-
cations. An algorithmic switched-capacitor converter
with T/H circuitry for both positive and negative inputs
supports fully differential 12-bit conversions from an
internal temperature sensor, two external temperature
sensors, or voltage sources in a variety of channel con-
Figure 1. Functional Diagram
______________________________________________________________________________________________________
SCLK
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
DIN
CS
12-Bit Serial-Output Temperature Sensors
V
DD
/4
Detailed Description
CONTROL
DIODE
BIAS
INPUT
MUX
REGISTER
INPUT
OUTPUT
SHIELD
SHO
T/H
T/H
CONTROL
LOGIC
figurations. Microprocessor (µP) control is made easy
through a flexible 3-wire serial interface.
Figure 1 shows a simplified functional diagram of the
internal architecture for the MAX1298/MAX1299. In tem-
perature-sensing mode, the multiplexer (mux) steers
bias currents through internal or external diodes while
the ADC computes their temperature in relation to
changes in forward voltage. Channels not used for tem-
perature measurement can be configured to measure
other system voltages.
MAX1298
MAX1299
with 5-Channel ADC
REF
IN +
IN -
12-BIT
ADC
REGISTER
OUTPUT
REF
CLOCK
DOUT
V
GND
DD
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