Datasheet

© 2006 Microchip Technology Inc. DS21978C-page 5
MCP4011/2/3/4
Digital Inputs/Outputs (CS, U/D)
Input High Voltage V
IH
0.7 V
DD
——V
Input Low Voltage V
IL
——0.3V
DD
V
High-Voltage Input Entry Voltage V
IHH
8.5 — 12.5
(6)
V Threshold for WiperLock™
Technology
High-Voltage Input Exit Voltage V
IHH
——V
DD
+0.8
(6)
V
CS
Pull-up/Pull-down Resistance R
CS
—16 — kΩ V
DD
= 5.5V, V
CS
= 3V
CS
Weak Pull-up/Pull-down Current I
PU
—170 — µAV
DD
= 5.5V, V
CS
= 3V
Input Leakage Current I
IL
-1 — 1 µA V
IN
= V
DD
CS and U/D Pin Capacitance C
IN
,
C
OUT
—10 — pFf
C
= 1 MHz, V
DD
≥ 2.7V
RAM (Wiper) Value
Value Range N 0h — 3Fh hex
Default POR Setting N 1Fh hex
Power Requirements
Power Supply Sensitivity
(MCP4011 and MCP4013 only)
PSS — 0.0015 0.0035 %/% V
DD
= 4.5V to 5.5V, V
A
= 4.5V,
Code = 1Fh
— 0.0015 0.0035 %/% V
DD
= 2.7V to 4.5V, V
A
= 2.7V,
Code = 1Fh
AC/DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all parameters apply across the specified operating ranges.
T
A
= -40°C to +125°C, 2.1 kΩ, 5kΩ, 10 kΩ and 50 kΩ devices. Typical specifications represent values for V
DD
= 2.7V to 5.5V,
V
SS
= 0V, 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
. (-202 devices V
A
= 4V).
3: MCP4011/13 only, test conditions are: I
W
= 1.9 mA, code = 00h.
4: MCP4012/14 only, test conditions are:
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. See
Section 6.0 “Resistor” for additional information.
8: For voltages below 2.7V, refer to Section 2.0 “Typical Performance Curves”.
9: The MCP4011 is externally connected to match the configurations of the MCP4012 and MCP4014 and then tested.
Device
Resistance
Current at Voltage
Comments
5.5V 2.7V
2.1 kΩ 2.25 mA 1.1 mA MCP4012 includes V
WZSE
MCP4014 includes V
WFSE
5kΩ 1.4 mA 450 µA
10 kΩ 450 µA 210 µA
50 kΩ 90 µA 40 µA