MCP3302(2002) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

MCP3302
(Rev.:2002)

13-Bit Differential Input, Low Power A/D Converter with SPI™ Serial Interface

Microchip Technology 

MCP3302/04

1.0 ELECTRICAL

CHARACTERISTICS

Maximum Ratings*

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

All inputs and outputs w.r.t. VSS .....-0.3V to VDD +0.3V

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

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

Maximum Junction Temperature ....................... 150°C

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

*Notice: Stresses above those listed under “Maximum rat-

ings” 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. Expo-

sure to maximum rating conditions for extended periods may

affect device reliability.

ELECTRICAL SPECIFICATIONS

PIN FUNCTION TABLE

Name

CH0-CH7

DGND

CS/SHDN

DIN

DOUT

CLK

AGND

VREF

VDD

Function

Analog Inputs

Digital Ground

Chip Select / Shutdown Input

Serial Data In

Serial Data Out

Serial Clock

Analog Ground

Reference Voltage Input

+2.7V to 5.5V Power Supply

Electrical Characteristics: Unless otherwise noted, all parameters apply at VDD = 5V, VSS = 0V, and VREF = 5V. Full differential

input configuration (Figure 3-4) with fixed common mode voltage of 2.5V. All parameters apply over temperature with

TAMB = -40°C to +85°C (Note 7). Conversion speed (FSAMPLE) is 100 ksps with FCLK = 21*FSAMPLE

Parameter

Symbol

Min Typ

Max

Units

Conditions

Conversion Rate

Maximum Sampling Frequency

Conversion Time

FSAMPLE

—

—

100

ksps Note 8

—

—

50

ksps VDD = VREF = 2.7V, VCM =1.35V

TCONV

13

CLK

periods

Acquisition Time

TACQ

1.5

CLK

periods

DC Accuracy

Resolution

12 data bits + sign

bits

Integral Nonlinearity

INL

—

±0.5

±1

LSB MCP3302/04-B

—

±1

±2

LSB MCP3302/04-C

Differential Nonlinearity

DNL

—

±0.5

±1

LSB Monotonic over temperature

Positive Gain Error

-3 -0.75

+2

LSB

Negative Gain Error

-3

-0.5

+2

LSB

Offset Error

-3

+3

+6

LSB

Note 1: This specification is established by characterization and not 100% tested.

2: See characterization graphs that relate converter performance to VREF level.

3: VIN = 0.1V to 4.9V @ 1 kHz.

4: VDD =5VP-P ±500 mV @ 1 kHz, see test circuit Figure 3-3.

5: Maximum clock frequency specification must be met.

6: VREF = 400 mV, VIN = 0.1V to 4.9V @ 1 kHz

7: TSSOP devices are only specified at 25°C and +85°C.

8: For slow sample rates, see Section 6.2.1 for limitations on clock frequency.

 2002 Microchip Technology Inc.

DS21697B-page 3

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