MCP4162T-502I/SL View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

MCP4162T-502I/SL

7/8-Bit Single/Dual SPI Digital POT with Volatile Memory

Microchip Technology 

MCP413X/415X/423X/425X

AC/DC CHARACTERISTICS (CONTINUED)

DC Characteristics

Parameters

Sym

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.

Min

Typ Max Units

Conditions

Resistance

(± 20%)

RAB

4.0

5

6.0

kΩ -502 devices (Note 1)

8.0

10

12.0

kΩ -103 devices (Note 1)

40.0

50

60.0

kΩ -503 devices (Note 1)

80.0

100 120.0 kΩ -104 devices (Note 1)

Resolution

N

257

Taps 8-bit No Missing Codes

129

Taps 7-bit No Missing Codes

Step Resistance

RS

—

RAB /

—

(256)

Ω 8-bit Note 6

—

RAB /

—

(128)

Ω 7-bit Note 6

Nominal

|RAB0 - RAB1|

—

Resistance Match

/ RAB

|RBW0 - RBW1|

—

/ RBW

Wiper Resistance

RW

—

(Note 3, Note 4)

—

Nominal

Resistance

Tempco

ΔRAB/ΔT

—

—

—

Ratiometeric

Tempco

ΔVWB/ΔT

—

0.2

1.25

% MCP42X1 devices only

0.25

1.5

% MCP42X2 devices only,

Code = Full-Scale

75

160

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

75

300

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

50

— 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

15

— ppm/°C Code = Midscale (80h or 40h)

Resistor Terminal VA,VW,VB

VSS

—

VDD

V Note 5, Note 6

Input Voltage

Range (Terminals

A, B and W)

Maximum current

IW

through A, W or B

—

—

2.5

mA Note 6, Worst case current through

wiper when wiper is either Full-Scale or

Zero Scale.

Leakage current

IWL

into A, W or B

—

100

—

nA MCP4XX1 PxA = PxW = PxB = VSS

—

100

—

nA MCP4XX2 PxB = PxW = VSS

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 over voltage and

temperature.

8: The MCP4XX1 is externally connected to match the configurations of the MCP41X2 and MCP42X2, and

then tested.

9: POR/BOR is not rate dependent.

10: Supply current is independent of current through the resistor network.

© 2008 Microchip Technology Inc.

DS22060B-page 5

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