© 2008 Microchip Technology Inc.

DS21034E-page 3

MCP3202

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

Storage Temperature ................................... –65°C to +150°C

Ambient temperature with power applied.......–65°C to +150°C

ESD Protection On All Pins (HBM)

...................................≥ 4kV

† Notice:

Stresses above those listed under “Absolute

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

periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

Electrical Characteristics:

Parameter

Sym

Min.

Typ.

Max.

Units

Conditions

Conversion Rate:

Conversion Time

—

—

12

clock

cycles

Analog Input Sample Time

1.5

clock

cycles

Throughput Rate

—

—

—

—

100

50

ksps

ksps

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

THD

—

-82

—

dB

Signal-to-Noise and Distortion

(SINAD)

SINAD

—

72

—

dB

Spurious Free Dynamic Range

SFDR

—

86

—

dB

Analog Inputs:

Input Voltage Range for CH0 or

CH1 in Single-Ended Mode

V

Input Voltage Range for IN+ in

Pseudo-Differential Mode

IN+

IN-

—

See Sections 3.1 and 4.1

Input Voltage Range for IN- in

Pseudo-Differential Mode

IN-

—

mV

See Sections 3.1 and 4.1

Leakage Current

—

.001

±1

μA

Switch Resistance

—1 k

—

Ω

See Figure 4-1

Sample Capacitor

—

20

—

pF

See Figure 4-1

Digital Input/Output:

Data Coding Format

Straight Binary

High Level Input Voltage

——

V

Low Level Input Voltage

—

—

V

Note 1:

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

2:

Because the sample cap will eventually lose charge, effective clock rates below 10 kHz can affect linearity performance,

especially at elevated temperatures. See Section 6.2 “Maintaining Minimum Clock Speed” for more information.