MAX1299CEAE+ Maxim Integrated Products, MAX1299CEAE+ Datasheet - Page 18

• Manufacturer Part Number: MAX1299CEAE+
• Description: IC TEMP SENS W/ADC 16-SSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1299CEAE+

• 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: 2.7 V ~ 3.6 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

For best performance, use PC boards. Do not use wire-
wrap boards. Board layout should ensure that digital
and analog signal lines are separated from each other.
Do not run analog and digital (especially clock) signals
parallel to one another or run digital lines underneath
the ADC package.
High-frequency noise in the V
affect ADC performance. Bypass the supply with a
0.1µF capacitor close to pin V
lead lengths for best supply-noise rejection. If the
power supply is very noisy, connect a 10Ω resistor in
series with the supply to provide lowpass filtering.
Relative accuracy is the deviation of the values on an
actual transfer function from a straight line. This straight
line can be either a best-straight-line fit or a line drawn
12-Bit Serial-Output Temperature Sensors
with 5-Channel ADC
18
Figure 8. Remote Diode Shielding for PC Boards
______________________________________________________________________________________
Layout, Grounding, and Bypassing
SHIELD
DD
Relative Accuracy
DD
. Minimize capacitor
CATHODE
power supply may
Definitions
ANODE
between the endpoints of the transfer function, once
offset and gain errors have been nullified. The static lin-
earity parameters for the MAX1298/MAX1299 are mea-
sured using the best-straight-line-fit method.
Differential nonlinearity is the difference between an
actual step width and the ideal value of 1LSB. A DNL
error specification of less than 1LSB guarantees no
missing codes and a monotonic transfer function.
The offset error is the difference between the ideal and
the actual offset points. For an ADC, the offset point is
the midstep value when the digital output is zero.
The gain or full-scale error is the difference between
the ideal and actual gain points on the transfer function,
after the offset error has been canceled out. For an
ADC, the gain point is the midstep value when the digi-
tal output is full scale.
Aperture delay (t
rising edge of the sampling clock and the instant when
an actual sample is taken.
TRANSISTOR COUNT: 13,669
PROCESS: BiCMOS
Differential Nonlinearity (DNL)
AD
) is the time defined between the
Chip Information
Aperture Delay
Offset Error
Gain Error