Rainbow Electronics MAX6622 - Manual (Page 5)

MAX6622
5-Channel Precision Temperature Monitor
_______________________________________________________________________________________ 5
REMOTE TEMPERATURE ERROR
vs. COMMON-MODE NOISE FREQUENCY
MAX6622 toc08
FREQUENCY (MHz)
TEMPERATURE ERROR (
°C)
1 0.1 0.01
-4
-3
-2
-1
0
1
2
3
4
5
-5
0.001 10
100mV P-P
Typical Operating Characteristics (continued)
(V CC = 3.3V, V STBY = V CC , T A = +25°C, unless otherwise noted.)
TEMPERATURE ERROR
vs. DXP-DXN CAPACITANCE
MAX6622 toc09
DXP-DXN CAPACITANCE (nF)
TEMPERATURE ERROR (
°C)
10
-4.5
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0
-5.0
1 100
Pin Description
PIN NAME FUNCTION
1 DXP1
Combined Current Source and A/D Positive Input for Channel 1 Remote Diode. Connect to the anode
of a remote-diode-connected temperature-sensing transistor. Leave unconnected or connect to V
CC if
no remote diode is used. Place a 2200pF capacitor between DXP1 and DXN1 for noise filtering.
2 DXN1
Cathode Input for Channel 1 Remote Diode. Connect the cathode of the channel 1 remote-diode-
connected transistor to DXN1. Internally connected to GND.
3 DXP2
Combined Current Source and A/D Positive Input for Channel 2 Remote Diode. Connect to the anode
of a remote-diode-connected temperature-sensing transistor. Leave unconnected or connect to V
CC if
no remote diode is used. Place a 2200pF capacitor between DXP2 and DXN2 for noise filtering.
4 DXN2
Cathode Input for Channel 2 Remote Diode. Connect the cathode of the channel 2 remote-diode-
connected transistor to DXN2.
5 DXP3
Combined Current Source and A/D Positive Input for Channel 3 Remote Diode. Connect to the anode
of a remote-diode-connected temperature-sensing transistor. Leave unconnected or connect to V
CC if
no remote diode is used. Place a 2200pF capacitor between DXP3 and DXN3 for noise filtering.
6 DXN3
Cathode Input for Channel 3 Remote Diode. Connect the cathode of the channel 3 remote-diode-
connected transistor to DXN3.