MCP3201-BI/MS View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

MCP3201-BI/MS

2.7V 12-Bit A/D Converter with SPI Serial Interface

Microchip Technology 

MCP3201

1.0 ELECTRICAL

CHARACTERISTICS

1.1 Maximum Ratings†

VDD...................................................................................7.0V

All inputs and outputs w.r.t. VSS ................ -0.6V to VDD +0.6V

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

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

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

†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 periods

may affect device reliability.

ELECTRICAL CHARACTERISTICS

Electrical Specifications: All parameters apply at VDD = 5V, VSS = 0V, VREF = 5V, TA = -40°C to +85°C, fSAMPLE = 100 ksps, and

fCLK = 16*fSAMPLE, unless otherwise noted.

Parameter

Sym

Min

Typ

Max

Units

Conditions

Conversion Rate:

Conversion Time

tCONV

—

—

12

clock

cycles

Analog Input Sample Time

tSAMPLE

1.5

clock

cycles

Throughput Rate

DC Accuracy:

fSAMPLE

—

—

100

ksps VDD = VREF = 5V

50

ksps VDD = VREF = 2.7V

Resolution

12

bits

Integral Nonlinearity

INL

—

±0.75

±1

LSB MCP3201-B

—

±1

±2

LSB MCP3201-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 VIN = 0.1V to 4.9V@1 kHz

Signal to Noise and Distortion

(SINAD)

SINAD

—

72

—

dB VIN = 0.1V to 4.9V@1 kHz

Spurious Free Dynamic Range

SFDR

—

86

—

dB VIN = 0.1V to 4.9V@1 kHz

Reference Input:

Voltage Range

Current Drain

Analog Inputs:

0.25

—

VDD

—

100

150

—

.001

3

V Note 2

µA

µA CS = VDD = 5V

Input Voltage Range (IN+)

Input Voltage Range (IN-)

Leakage Current

IN+

IN-

—

VREF+IN-

V

IN-

VSS-100

VSS+100

mV

—

0.001

±1

µA

Switch Resistance

Sample Capacitor

Digital Input/Output:

RSS

—

1K

—

W See Figure 4-1

CSAMPLE

—

20

—

pF See Figure 4-1

Data Coding Format

Straight Binary

High Level Input Voltage

Low Level Input Voltage

VIH

0.7 VDD

—

—

V

VIL

—

—

0.3 VDD

V

Note 1:

2:

3:

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

See graph that relates linearity performance to VREF level.

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.

© 2008 Microchip Technology Inc.

DS21290E-page 3

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