MCP3204/3208

DS21298B-page 2

Preliminary

© 1999 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

Soldering temperature of leads (10 seconds) .. +300°C

ESD protection on all pins ................................... > 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

DD

DGND

AGND

CH0-CH7

CLK

D

IN

D

OUT

CS/SHDN

V

REF

+2.7V to 5.5V Power Supply

Digital Ground

Analog Ground

Analog Inputs

Serial Clock

Serial Data In

Serial Data Out

Chip Select/Shutdown Input

Reference Voltage Input

ELECTRICAL CHARACTERISTICS

All parameters apply at V

f

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNITS

CONDITIONS

Conversion Rate

Conversion Time

t

CONV

12

clock

cycles

Analog Input Sample Time

1.5

clock

cycles

Throughput Rate

f

SAMPLE

100

50

ksps

ksps

V

V

DC Accuracy

Resolution

12

bits

Integral Nonlinearity

INL

±0.75

±1

±1

±2

LSB

MCP3204/3208-B

MCP3204/3208-C

Differential Nonlinearity

DNL

±0.5

±1

LSB

No missing codes over

temperature

Offset Error

±1.25

±3

LSB

Gain Error

±1.25

±5

LSB

Dynamic Performance

Total Harmonic Distortion

-82

dB

Signal to Noise and Distortion

(SINAD)

72

dB

Spurious Free Dynamic

Range

86

dB

Reference Input

Voltage Range

0.25

V

DD

VNote 2

Current Drain

100

0.001

150

3

µA

µA

CS = V

Analog Inputs

Input Voltage Range for

CH0-CH7 in Single-Ended

Mode

V

SS

V

REF

V

Input Voltage Range for IN+ In

pseudo-differential Mode

IN-

V

Input Voltage Range for IN- In

pseudo-differential Mode

V

V

mV

Leakage Current

0.001

±1

µA