MCP47DA1 datasheet(4/76 Pages) MICROCHIP

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MCP47DA1

DS25118D-page 4

 2012-2013 Microchip Technology Inc.

AC/DC CHARACTERISTICS

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

Supply Voltage

VDD

2.7

—

5.5

Analog Characteristics specified

1.8

—

5.5

Digital Characteristics specified

VDD Start Voltage

to ensure wiper to

default Reset

state

VBOR

—

1.65

RAM retention voltage (VRAM) < VBOR

VDD Rise Rate to

ensure Power-on

Reset

VDDRR

Note 5

V/ms

Delay after device

exits the Reset

state

(VDD > VBOR) to

Digital Interface

Active

TBORD

——

µS

Delay after device

exits the Reset

state

(VDD > VBOR) to

VOUT valid

TOUTV

µS

Within ± 0.5 LSb of VREF/2

(for default POR/BOR wiper value).

Supply Current



(Note 6)

IDD

—

130

200

µA

Serial Interface Active,

Write all 0’s to volatile wiper,

No Load on VOUT

VDD = 5.5V, VREF = 1.5V,

FSCL = 400 kHz

—

100

160

µA

Serial Interface Inactive (Static),

(Stop condition, SCL = SDA = VIH),

No Load on VOUT

Wiper = 0, VDD = 5.5V, VREF = 1.5V

VREF Input Range

VREF

1—

VDD

VFor VDD  3.0V

VREF  VDD

For VDD < 3.0V

VREF  (VDD - 1.0V)/(2/3) (Note 7)

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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