MCP4021 datasheet(2/64 Pages) MICROCHIP

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MCP4021/2/3/4

DS21945E-page 2

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

VDD............................................................................................................. 6.5V

CS and U/D inputs w.r.t VSS.................................... -0.3V to 12.5V

A, B and W terminals w.r.t VSS.................... -0.3V to VDD + 0.3V

Current at Input Pins ..................................................±10 mA

Current at Supply Pins ...............................................±10 mA

Current at Potentiometer Pins ...................................±2.5 mA

Storage temperature .....................................-65°C to +150°C

Ambient temp. with power applied ................-55°C to +125°C

ESD protection on all pins

........... ≥ 4kV (HBM), ≥ 400V (MM)

Maximum Junction Temperature (TJ)..........................+150°C

† Notice: Stresses above those listed under “Maximum

Ratings” may cause permanent damage to the device. This is

a stress rating only and functional operation of the device at

those or any other conditions above those indicated in the

operational listings of this specification is not implied.

Exposure to maximum rating conditions for extended periods

may affect device reliability.

AC/DC CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, all parameters apply across the specified operating ranges.

TA = -40°C to +125°C, 2.1 kΩ, 5kΩ, 10 kΩ and 50 kΩ devices. Typical specifications represent values for VDD = 5.5V, VSS = 0V,

TA = +25°C.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Operating Voltage Range

VDD

2.7

—

5.5

CS Input Voltage

VCS

VSS

—

12.5

The CS pin will be at one of three

input levels (VIL, VIH or VIHH).

(Note 6)

Supply Current

IDD

—

µA

5.5V, CS = VSS, fU/D = 1 MHz

—

µA

2.7V, CS = VSS, fU/D = 1 MHz

—

0.3

µA

Serial Interface Inactive

(CS = VIH, U/D = VIH)

—

0.6

EE Write cycle, TA = +25°C

Resistance

(± 20%)

RAB

1.68

2.1

2.52

-202 devices (Note 1)

4.0

6.0

-502 devices (Note 1)

8.0

12.0

-103 devices (Note 1)

40.0

60.0

-503 devices (Note 1)

Resolution

Taps

No Missing Codes

Step Resistance

—

RAB / 63

—

Note 6

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. (-202 devices VA = 4V).

MCP4021/23 only, test conditions are: IW = 1.9 mA, code = 00h.

MCP4022/24 only, test conditions are:

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. See

Section 6.0 “Resistor” for additional information.

The MCP4021 is externally connected to match the configurations of the MCP4022 and MCP4024, and then tested.

Device

Resistance

Current at Voltage

Comments

5.5V

2.7V

2.1 k

2.25 mA

1.1 mA

MCP4022 includes VWZSE

MCP4024 includes VWFSE

1.4 mA

450 µA

10 k

450 µA

210 µA

50 k

90 µA

40 µA

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