MCP4441 datasheet(5/100 Pages) MICROCHIP

5 / 100 page

DS22265A-page 5

MCP444X/446X

Resistance

(± 20%)

RAB

4.0

6.0

-502 devices (Note 1)

8.0

12.0

-103 devices (Note 1)

40.0

60.0

-503 devices (Note 1)

80.0

100

120.0

-104 devices (Note 1)

Resolution

257

Taps

8-bit

No Missing Codes

129

Taps

7-bit

No Missing Codes

Step Resistance

—RAB /

(256)

—

8-bit

Note 6

—RAB /

(128)

—

7-bit

Note 6

Nominal

Resistance Match

(| RABWC -

RABMEAN |) /

RABMEAN

—

0.2

1.50

5 k

MCP44X1

devices only

—

0.2

1.25

10 k

—0.2

1.0

50 k

—

0.2

1.0

100 k

(| RBWWC -

RBWMEAN |) /

RBWMEAN

—0.25

1.75

5 k

Code = Full Scale

—0.25

1.50

10 k

—0.25

1.25

50 k

—

0.25

1.25

100 k

Wiper Resistance

(Note 3, Note 4)

—

160

VDD = 5.5 V, IW = 2.0 mA, code = 00h

—

300

VDD = 2.7 V, IW = 2.0 mA, code = 00h

Nominal

Resistance

Tempco

ΔRAB/ΔT—

—

ppm/°C TA = -20°C to +70°C

—100

—

ppm/°C TA = -40°C to +85°C

—150

—

ppm/°C TA = -40°C to +125°C

Ratiometeric

Tempco

ΔVWB/ΔT

—

ppm/°C Code = Midscale (80h or 40h)

Resistance

Tracking

ΔRTRACK

Section 2.0

ppm/°C See Typical Performance Curves

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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