Datasheet

 2009-2011 Microchip Technology Inc. DS22197B-page 19
MCP631/2/3/4/5/9
3.0 PIN DESCRIPTIONS
Descriptions of the pins are listed in Table 3-1.
TABLE 3-1: PIN FUNCTION TABLE
3.1 Analog Outputs
The analog output pins (V
OUT
) are low-impedance
voltage sources.
3.2 Analog Inputs
The non-inverting and inverting inputs (V
IN
+, V
IN
-, …)
are high-impedance CMOS inputs with low bias
currents.
3.3 Power Supply Pins
The positive power supply (V
DD
) is 2.5V to 5.5V higher
than the negative power supply (V
SS
). For normal
operation, the other pins are between V
SS
and V
DD
.
Typically, these parts are used in a single (positive)
supply configuration. In that case, V
SS
is connected to
ground and V
DD
is connected to the supply. V
DD
will
need bypass capacitors.
MCP631 MCP632 MCP633 MCP634 MCP635 MCP639
Symbol
Description
SOIC SOT TDFN SOIC DFN SOIC SOT SOIC TSSOP MSOP DFN QFN
616 116 1 1 1 1 116V
OUT
,
V
OUTA
Output (op amp A)
242 222 4 2 2 2 21 V
IN
-,
V
INA
-
Inverting Input (op amp A)
333 333 3 3 3 3 32V
IN
+,
V
INA
+
Non-inverting Input (op
amp A)
424 444 21111 4 411V
SS
Negative Power Supply
——— —— 8 5 — — 5 5—CS
, CSA Chip Select Digital Input
(op amp A)
——— ——— — — — 6 6— CS
B Chip Select Digital Input
(op amp B)
——— 5 5 — — 5 5 7 7 4 V
INB
+ Non-inverting Input (op
amp B)
——— 6 6 — — 6 6 8 8 5 V
INB
- Inverting Input (op amp B)
——— 7 7 — — 7 7 9 9 6 V
OUTB
Output (op amp B)
757 887 6 4 4 10103 V
DD
Positive Power Supply
——— ——— — — — — —7
CS
BC Chip Select Digital Input
(op amp B and C)
——— ——— — 8 8 — — 8 V
OUTC
Output (op amp C)
——— ——— — 9 9 — — 9 V
INC
- Inverting Input (op amp C)
——— ——— — 10 10 — —10V
INC
+ Non-Inverting Input (op
amp C)
——— ——— — 12 12 — —12V
IND
+ Non-inverting Input (op
amp D)
——— ——— — 13 13 — —13 V
IND
- Inverting Input (op amp D)
——— ——— — 14 14 — —14V
OUTD
Output (op amp D)
——— ——— — — — — —15
CS
AD Chip Select Digital Input
(op amp A and D)
1,5,
8
—1, 5,
8
— — 1,5 — — — — — — NC No Internal Connection
— — — — 9 — — — — — 11 17 EP Exposed Thermal Pad
(EP); must be connected to
V
SS