MCP4461-103E Datasheet, PDF (9/100 Pages) Microchip Technology – 7/8-Bit Quad I2C Digital POT with Nonvolatile Memory

MCP444X/446X
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
Rheostat
Differential Non-
linearity
MCP44X1
(Note 4, Note 8)
MCP44X2 devices
only
(Note 4)
R-DNL
-0.5 ±0.25 +0.5 LSb 5 kΩ 8-bit
-1.0
+0.5 +1.0
LSb
-0.375 ±0.25 +0.375 LSb
7-bit
-0.75 +0.5 +0.75 LSb
-0.5 ±0.25 +0.5 LSb 10 kΩ 8-bit
-1.0 +0.25 +1.0 LSb
5.5V, I_W = 900 µA
3.0V, I_W = 480 µA
(Note 7)
5.5V, I_W = 900 µA
3.0V, I_W = 480 µA
(Note 7)
5.5V, I_W = 450 µA
3.0V, I_W = 240 µA
(Note 7)
-0.375 ±0.25 +0.375 LSb
-0.75 +0.5 +0.75 LSb
7-bit
5.5V, I_W = 450 µA
3.0V, I_W = 240 µA
(Note 7)
-0.5 ±0.25 +0.5 LSb 50 kΩ 8-bit
-0.5 ±0.25 +0.5 LSb
5.5V, I_W = 90 µA
3.0V, I_W = 48 µA
(Note 7)
-0.375 ±0.25 +0.375 LSb
-0.375 ±0.25 +0.375 LSb
7-bit
5.5V, I_W = 90 µA
3.0V, I_W = 48 µA
(Note 7)
-0.5 ±0.25 +0.5 LSb 100 kΩ 8-bit
-0.5 ±0.25 +0.5 LSb
5.5V, I_W = 45 µA
3.0V, I_W = 24 µA
(Note 7)
-0.375 ±0.25 +0.375 LSb
-0.375 ±0.25 +0.375 LSb
7-bit
5.5V, I_W = 45 µA
3.0V, I_W = 24 µA
(Note 7)
Capacitance (P_A)
C_AW
—
75
—
pF f =1 MHz, Code = Full Scale
Capacitance (P_w)
C_W
—
120
—
pF f =1 MHz, Code = Full Scale
Capacitance (P_B)
C_BW
—
75
—
pF f =1 MHz, Code = Full Scale
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: MCP44X1 only.
4: MCP44X2 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 MCP44X1 is externally connected to match the configurations of the MCP44X2, and then tested.
9: POR/BOR is not rate dependent.
10: Supply current is independent of current through the resistor network.
11: When HVC/A0 = V_IHH, the I_DD current is less due to current into the HVC/A0 pin. See I_PU specification.
© 2010 Microchip Technology Inc.
DS22265A-page 9