MCP47DA1 datasheet(6/76 Pages) MICROCHIP

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MCP47DA1

DS25118D-page 6

 2012-2013 Microchip Technology Inc.

Resistance

(± 20%)

RVREF

24.0

36.0



Note 1

Resolution

Taps

No Missing Codes

Step Resistance

—RVREF / 192

—



Note 3

Nominal

Resistance

Tempco

RVREF/T

—

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

VOUT/T

—

ppm/°C

Code = Mid-scale (40h)

VOUT Accuracy

740

750

760

3.0V

 VDD  3.6V

VREF = 1.5V, code = 40h

VOUT Load

LVOUTR

5—

—



Resistive Load

LVOUTC

—

Capacitive Load

Maximum current

through Terminal

(VREF) Note 3

IVREF

——

230

µA

VREF = 5.5V

Leakage current

into VREF

—100

—

VREF = VSS

Full-Scale Error

(code = 60h)

VFSE

-1.5

±0.35

+1.5

LSb

2.7V

 VDD  5.5V, VREF = 1.65V

Zero-Scale Error

(code = 20h)

VZSE

-1.5

±0.35

+1.5

LSb

2.7V

 VDD  5.5V, VREF = 1.65V

VOUT Integral

Non-linearity

INL

-0.7

±0.25

+0.7

LSb

2.7V

 VDD  5.5V (Note 2)

VREF = 1.65V

VOUT Differential

Non-linearity

DNL

-0.35

±0.125

+0.35

LSb

2.7V

 VDD  5.5V (Note 2)

VREF = 1.65V

Bandwidth -3 dB

—

100

—

kHz

VREF = 1.5V ± 0.1V, Code = 40h

Capacitance

(VREF)

CREF

—

f =1 MHz, Code = Full Scale

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. CL = 1 nF, RL = 5 k .

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 the VREF pin and the VSS pin.

INL and DNL are measured at VOUT from Code = 20h (Zero Scale) through Code = 60h (Full Scale).

This specification by design.

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

temperature.

POR/BOR is not rate dependent.

Supply current is independent of VREF current.

See Section 7.1.3.

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