Datasheet

MAX6693
7-Channel Precision Temperature Monitor
with Beta Compensation
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
CC
= 3.3V, V
STBY
= V
CC
, T
A
= +25°C, unless otherwise noted.)
CH 2 REMOTE-DIODE TEMPERATURE
ERROR vs. CAPACITANCE
MAX6693 toc09
CAPACITANCE (nF)
TEMPERATURE ERROR (°C)
10
-4
-3
-2
-1
0
1
2
3
4
5
-5
1 100
Pin Description
PIN NAME FUNCTION
1 DXP1
Combined Current Source and A/D Positive Input for Channel 1 Remote Transistor. Connect to the
emitter of a low-beta transistor. Leave unconnected or connect to V
CC
if no remote transistor is used.
Place a 100pF capacitor between DXP1 and DXN1 for noise filtering.
2 DXN1 Base Inp ut for C hannel 1 Rem ote D i od e. C onnect to the b ase of a P N P tem p er atur e- sensi ng tr ansi stor .
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 100pF 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 100pF 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.
7 DXP4
Combined Current Source and A/D Positive Input for Channel 4 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 100pF capacitor between DXP4 and DXN4 for noise filtering.
8 DXN4
Cathode Input for Channel 4 Remote Diode. Connect the cathode of the channel 4 remote-diode-
connected transistor to DXN4.
CH 1 REMOTE-DIODE TEMPERATURE
ERROR vs. CAPACITANCE
MAX6693 toc08
CAPACITANCE (nF)
TEMPERATURE ERROR (°C)
10
-4
-3
-2
-1
0
1
2
3
4
5
-5
1 100