Datasheet

© 2008 Microchip Technology Inc. DS22060B-page 5
MCP413X/415X/423X/425X
Resistance
(± 20%)
R
AB
4.0 5 6.0 kΩ -502 devices (Note 1)
8.0 10 12.0 kΩ -103 devices (Note 1)
40.0 50 60.0 kΩ -503 devices (Note 1)
80.0 100 120.0 kΩ -104 devices (Note 1)
Resolution N 257 Taps 8-bit No Missing Codes
129 Taps 7-bit No Missing Codes
Step Resistance R
S
—R
AB
/
(256)
— Ω 8-bit Note 6
—R
AB
/
(128)
— Ω 7-bit Note 6
Nominal
Resistance Match
|R
AB0
- R
AB1
|
/ R
AB
— 0.2 1.25 % MCP42X1 devices only
|R
BW0
- R
BW1
|
/ R
BW
—0.251.5 %MCP42X2 devices only,
Code = Full-Scale
Wiper Resistance
(Note 3, Note 4)
R
W
— 75 160 Ω V
DD
= 5.5 V, I
W
= 2.0 mA, code = 00h
— 75 300 Ω V
DD
= 2.7 V, I
W
= 2.0 mA, code = 00h
Nominal
Resistance
Tempco
ΔR
AB
/ΔT — 50 — ppm/°C T
A
= -20°C to +70°C
— 100 — ppm/°C T
A
= -40°C to +85°C
— 150 — ppm/°C T
A
= -40°C to +125°C
Ratiometeric
Tempco
ΔV
WB
/ΔT — 15 — ppm/°C Code = Midscale (80h or 40h)
Resistor Terminal
Input Voltage
Range (Terminals
A, B and W)
V
A,
V
W,
V
B
V
SS
—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—nAMCP4XX1 PxA = PxW = PxB = V
SS
—100—nAMCP4XX2 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: MCP4XX1 only.
4: MCP4XX2 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 MCP4XX1 is externally connected to match the configurations of the MCP41X2 and MCP42X2, and
then tested.
9: POR/BOR is not rate dependent.
10: Supply current is independent of current through the resistor network.