MCP3202

DS21034A-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

CH0

CH1

CLK

D

IN

D

OUT

CS/SHDN

+2.7V to 5.5V Power Supply and

Reference Voltage Input

Channel 0 Analog Input

Channel 1 Analog Input

Serial Clock

Serial Data In

Serial Data Out

Chip Select/Shutdown Input

ELECTRICAL CHARACTERISTICS

All parameters apply at V

unless otherwise noted.

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNITS

CONDITIONS

Conversion Rate

Conversion Time

t

CONV

12

clock

cycles

Analog Input Sample Time

t

SAMPLE

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

LSB

MCP3202-B

MCP3202-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

V

Signal to Noise and Distortion

(SINAD)

72

dB

V

Spurious Free Dynamic Range

86

dB

V

Analog Inputs

Input Voltage Range for CH0 or

CH1 in Single-Ended Mode

V

SS

V

REF

V

Input Voltage Range for IN+ in

Pseudo-Differential Mode

IN-

V

See Sections 3.1 and 4.1

Input Voltage Range for IN- in

Pseudo-Differential Mode

V

V

mV

See Sections 3.1 and 4.1

Leakage Current

.001

±1

µA

Switch Resistance

R

SS

1K

Ω

See Figure 4-1

Sample Capacitor

C

SAMPLE

20

pF

See Figure 4-1