© 2009 Microchip Technology Inc.

DS21950E-page 5

MCP3550/1/3

——

0.4

V

Input leakage Current

(CS, SCK)

-1

—

1

µA

Internal Pin Capacitance

(CS, SCK, SDO/RDY)

—5

—

pF

Note 1

DC CHARACTERISTICS (CONTINUED)

Electrical Specifications: Unless otherwise indicated, all parameters apply at -40°C

applies to entire MCP3550/1/3 family.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Note 1:

This parameter is established by characterization and not 100% tested.

2:

INL is the difference between the endpoints line and the measured code at the center of the quantization band.

3:

4:

5:

Characterized by design, but not tested.

6:

Rejection performance depends on internal oscillator accuracy; see Section 4.0 “Device Overview” for more informa-

tion on oscillator and digital filter design. MCP3550/1 device rejection specifications characterized from 49 to 61 Hz.

TEMPERATURE CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated

Parameters

Sym

Min

Typ

Max

Units

Conditions

Temperature Ranges

Specified Temperature Range

-40

—

+85

°C

Operating Temperature Range

-40

—

+125

°C

Thermal Package Resistances

Thermal Resistance, 8L-MSOP

—211

—

°C/W

Thermal Resistance, 8L-SOIC

—

149.5

—

°C/W

SERIAL TIMINGS

Electrical Specifications: Unless otherwise indicated, all parameters apply at -40°C

Parameters

Sym

Min

Typ

Max

Units

Conditions

CLK Frequency

——

5

MHz

CLK High

90

—

—

ns

CLK Low

90

—

—

ns

CLK fall to output data valid

0—

90

ns

CS low to indicate RDY state

0—

50

ns

CS minimum low time

50

—

—

ns

RDY flag setup time

20

—

—

ns

CS rise to output disable

20

—

—

ns

CS disable time

90

—

—

ns

Power-up to CS LOW

—10

—

µs

CS High to Shutdown Mode

—10

—

µs