Datasheet

MCP40D17/18/19
DS22152B-page 6 © 2009 Microchip Technology Inc.
Full Scale Error
(MCP40D18 only)
(code = 7Fh)
V
WFSE
-3.0 -0.1 — LSb 5 kΩ 2.7V ≤ V
DD
≤ 5.5V
-2.0 -0.1 — LSb 10 kΩ 2.7V ≤ V
DD
≤ 5.5V
-0.5 -0.1 — LSb 50 kΩ 2.7V ≤ V
DD
≤ 5.5V
-0.5 -0.1 — LSb 100 kΩ 2.7V ≤ V
DD
≤ 5.5V
Zero Scale Error
(MCP40D18 only)
(code = 00h)
V
WZSE
— +0.1 +3.0 LSb 5 kΩ 2.7V ≤ V
DD
≤ 5.5V
— +0.1 +2.0 LSb 10 kΩ 2.7V ≤ V
DD
≤ 5.5V
— +0.1 +0.5 LSb 50 kΩ 2.7V ≤ V
DD
≤ 5.5V
— +0.1 +0.5 LSb 100 kΩ 2.7V ≤ V
DD
≤ 5.5V
Potentiometer
Integral
Non-linearity
INL -0.5 ±0.25 +0.5 LSb 2.7V ≤ V
DD
≤ 5.5V
MCP40D18 device only (Note 2)
Potentiometer
Differential Non-
linearity
DNL -0.25 ±0.125 +0.25 LSb 2.7V ≤ V
DD
≤ 5.5V
MCP40D18 device only (Note 2)
Bandwidth -3 dB
(See Figure 2-83,
load = 30 pF)
BW — 2 — MHz 5 kΩ Code = 3Fh
—1—MHz10kΩ Code = 3Fh
— 260 — kHz 50 kΩ Code = 3Fh
— 100 — kHz 100 kΩ Code = 3Fh
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: MCP40D18 device only, includes V
WZSE
and V
WFSE
.
4: Resistor terminals A, W and B’s polarity with respect to each other is not restricted.
5: This specification by design.
6: Non-linearity is affected by wiper resistance (R
W
), which changes significantly over voltage and
temperature.
7: POR/BOR is not rate dependent.
8: Supply current is independent of current through the resistor network