MAX6696AEE Maxim Integrated Products, MAX6696AEE Datasheet - Page 17

• Manufacturer Part Number: MAX6696AEE
• Description: Board Mount Temperature Sensors
• Manufacturer: Maxim Integrated Products

Specifications of MAX6696AEE

• Full Temp Accuracy: +/- 3 C
• Package / Case: QSOP-16
• Digital Output - Bus Interface: Serial (2-Wire)
• Digital Output - Number Of Bits: 10 bit + Sign
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Output Type: Digital
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 5. Recommended DXP-DXN PC Traces
4) Route through as few vias and crossunders as pos-
5) Use wide traces when practical.
6) When the power supply is noisy, add a resistor (up
10 mils
10 mils
Leakage currents from PC board contamination
must be dealt with carefully since a 20M
path from DXP to ground causes about +1°C error.
If high-voltage traces are unavoidable, connect
guard traces to GND on either side of the DXP-DXN
traces (Figure 5).
sible to minimize copper/solder thermocouple
effects.
to 47 ) in series with V
Circuit).
Dual Remote/Local Temperature Sensors with
______________________________________________________________________________________
GND
GND
DXP
DXN
CC
2N3906
(see Typical Operating
CPU
10 mils
leakage
MINIMUM
10 mils
DXP1
0.1 F
DXN
DXP2
ADD0
V
CC
ADD1
MAX6696
Typical Operating Circuits (continued)
STBY
GND
SMBus Serial Interface
47
Use a twisted-pair cable to connect the remote sensor
for remote-sensor distances longer than 8in or in very
noisy environments. Twisted-pair cable lengths can be
between 6ft and 12ft before noise introduces excessive
errors. For longer distances, the best solution is a
shielded twisted pair like that used for audio micro-
phones. For example, Belden #8451 works well for dis-
tances up to 100ft in a noisy environment. At the
device, connect the twisted pair to DXP and DXN and
the shield to GND. Leave the shield unconnected at the
remote sensor.
For very long cable runs, the cable’s parasitic capaci-
tance often provides noise filtering, so the 2200pF
capacitor can often be removed or reduced in value.
Cable resistance also affects remote-sensor accuracy.
For every 1
mately +1/2°C.
TRANSISTOR COUNT: 22,964
PROCESS: BiCMOS
SMBDATA
SMBCLK
RESET
ALERT
OT1
OT2
+3.3V
Twisted-Pair and Shielded Cables
of series resistance the error is approxi-
10k
EACH
TO CLOCK
THROTTLING
DATA
CLOCK
INTERRUPT
TO P
TO SYSTEM
SHUTDOWN
Chip Information
17