Datasheet

MCP434X/436X
DS22233A-page 6 © 2009 Microchip Technology Inc.
Resistor Terminal
Input Voltage
Range (Terminals
A, B and W)
V
A,
V
W,
V
B
Vss — V
DD
V Note 5, Note 6
Maximum current
through A, W or B
I
W
——2.5mANote 6, Worst case current through
wiper when wiper is either Full Scale or
Zero Scale.
Leakage current
into A, W or B
I
WL
—100—nAMCP43X1 PxA = PxW = PxB = V
SS
—100—nAMCP43X2 PxB = PxW = V
SS
AC/DC CHARACTERISTICS (CONTINUED)
DC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature –40°C ≤ T
A
≤ +125°C (extended)
All parameters apply across the specified operating ranges unless noted.
V
DD
= +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ devices.
Typical specifications represent values for V
DD
= 5.5V, T
A
= +25°C.
Parameters Sym Min Typ Max Units Conditions
Note 1: Resistance is defined as the resistance between terminal A to terminal B.
2: INL and DNL are measured at V
W
with V
A
= V
DD
and V
B
= V
SS
.
3: MCP43X1 only.
4: MCP43X2 only, includes V
WZSE
and V
WFSE
.
5: Resistor terminals A, W and B’s polarity with respect to each other is not restricted.
6: This specification by design.
7: Non-linearity is affected by wiper resistance (R
W
), which changes significantly over voltage and
temperature.
8: The MCP43X1 is externally connected to match the configurations of the MCP43X2, and then tested.
9: POR/BOR is not rate dependent.
10: Supply current is independent of current through the resistor network.