MCP4441 datasheet(6/100 Pages) MICROCHIP

6 / 100 page

MCP444X/446X

DS22265A-page 6

Resistor Terminal

Input Voltage

Range (Terminals

A, B and W)

VA,VW,VB

Vss

—

VDD

Note 5, Note 6

Maximum current

through A, W or B

(Note 6)

—

2.5

Terminal A

IAW,

W = Full Scale (FS)

—

2.5

Terminal B

IBW,

W = Zero Scale (ZS)

—

2.5

Terminal W

IAW (W = FS) or

IBW (W = ZS)

Maximum RAB

current (IAB)

(Note 6)

IAB

——

1.38

VB = 0V, VA = 5.5V, RAB(MIN) = 4000Ω

—

0.688

VB = 0V, VA = 5.5V, RAB(MIN) = 8000Ω

—

0.138

VB = 0V, VA = 5.5V, RAB(MIN) = 40000Ω

—

0.069

VB = 0V, VA = 5.5V, RAB(MIN) = 80000Ω

Leakage current

into A, W or B

IWL

—100

—

MCP44X1

PxA = PxW = PxB = VSS

—100

—

MCP44X2

PxB = PxW = VSS

—

100

—

Terminals Disconnected

(R0A = R0W = R0B = 0;

R1A = R1W = R1B = 0;

R2A = R2W = R2B = 0;

R3A = R3W = R3B = 0)

AC/DC CHARACTERISTICS (CONTINUED)

DC Characteristics

Standard Operating Conditions (unless otherwise specified)

Operating Temperature

–40°C

≤ TA ≤ +125°C (extended)

All parameters apply across the specified operating ranges unless noted.

VDD = +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ devices.

Typical specifications represent values for VDD = 5.5V, TA = +25°C.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Note 1:

Resistance is defined as the resistance between terminal A to terminal B.

INL and DNL are measured at VW with VA = VDD and VB = VSS.

MCP44X1

only.

MCP44X2

only, includes VWZSE and VWFSE.

Resistor terminals A, W and B’s polarity with respect to each other is not restricted.

This specification by design.

Non-linearity is affected by wiper resistance (RW), which changes significantly over voltage and

temperature.

The MCP44X1 is externally connected to match the configurations of the MCP44X2, and then tested.

POR/BOR is not rate dependent.

10:

Supply current is independent of current through the resistor network.

11:

When HVC/A0 = VIHH, the IDD current is less due to current into the HVC/A0 pin. See IPU specification.

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