MCP466X datasheet(6/102 Pages) MICROCHIP

Part #	MCP466X

Description	7/8-Bit Single/Dual I2C Digital POT with Nonvolatile Memory

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Manufacturer	MICROCHIP [Microchip Technology]

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MCP454X/456X/464X/466X

DS22107B-page 6

 2008-2013 Microchip Technology Inc.

Maximum current

through Terminal

(A, W or B)

Note 6

IT

—

2.5

mA

Terminal A

IAW,

W = Full-Scale (FS)

—

2.5

mA

Terminal B

IBW,

W = Zero Scale (ZS)

—

2.5

mA

Terminal W

IAW or IBW,

W = FS or ZS

——

1.38

mA

Terminal A

and

Terminal B

IAB, VB = 0V,

VA = 5.5V,

RAB(MIN) = 4000

——

0.688

mA

IAB, VB = 0V,

VA = 5.5V,

RAB(MIN) = 8000

——

0.138

mA

IAB, VB = 0V,

VA = 5.5V,

RAB(MIN) = 40000

——

0.069

mA

IAB, VB = 0V,

VA = 5.5V,

RAB(MIN) = 80000

Leakage current

into A, W or B

IWL

—100

—

nA

MCP4XX1 PxA = PxW = PxB = VSS

—100

—

nA

MCP4XX2 PxB = PxW = VSS

—

100

—

nA

Terminals Disconnected

(R1HW = R0HW = 0)

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.

VDD = +2.7V to 5.5V, 5 k, 10 k, 50 k, 100 k 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.

2:

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

3:

MCP4XX1 only.

4:

MCP4XX2 only, includes VWZSE and VWFSE.

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 (RW), which changes significantly overvoltage and

temperature.

8:

The MCP4XX1 is externally connected to match the configurations of the MCP45X2 and MCP46X2, 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 = VIHH, the IDD current is less due to current into the HVC/A0 pin. See IPU specification.

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