MCP3002

DS21294C-page 2

© 2007 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

1.1

Maximum Ratings*

V

All inputs and outputs w.r.t. V

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

Ambient temp. with power applied .....-65°C to +125°C

ESD protection on all pins (HBM)........................ > 4kV

*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 peri-

ods may affect device reliability.

PIN FUNCTION TABLE

Name

Function

V

+2.7V to 5.5V Power Supply and

Reference Voltage Input

CH0

Channel 0 Analog Input

CH1

Channel 1 Analog Input

CLK

Serial Clock

Serial Data In

D

OUT

Serial Data Out

CS/SHDN

Chip Select/Shutdown Input

ELECTRICAL CHARACTERISTICS

All parameters apply at V

Typical values apply for V

PARAMETER

SYM

MIN

TYP

MAX

UNITS

CONDITIONS

Conversion Rate:

Conversion Time

t

CONV

—

—

10

clock

cycles

Analog Input Sample Time

t

SAMPLE

1.5

clock

cycles

Throughput Rate

f

SAMPLE

—

—

200

75

ksps

ksps

V

V

DC Accuracy:

Resolution

10

bits

Integral Nonlinearity

INL

—

±0.5

±1

LSB

Differential Nonlinearity

DNL

—

±0.25

±1

LSB

No missing codes over

temperature

Offset Error

—

—

±1.5

LSB

Gain Error

—

—

±1

LSB

Dynamic Performance:

Total Harmonic Distortion

THD

—

-76

—

dB

V

Signal to Noise and Distortion

(SINAD)

SINAD

—

61

—

dB

V

Spurious Free Dynamic Range

SFDR

—

78

—

dB

V

Analog Inputs:

Input Voltage Range for CH0 or CH1

in Single-Ended Mode

V

SS

V

Input Voltage Range for IN+ In

pseudo-differential Mode

IN+

IN-

—

Input Voltage Range for IN- In

pseudo-differential Mode

IN-

V

—

V

mV

Leakage Current

—

0.001

±1

µA

Switch Resistance

R

SS

—1K

—

Ω

See Figure 4-1

Sample Capacitor

C

SAMPLE

—

20

—

pF

See Figure 4-1

Note 1:

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

2:

The sample cap will eventually lose charge, especially at elevated temperatures, therefore f

at or above 70°C.