MCP3001 Просмотр технического описания (PDF) - Microchip Technology

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MCP3001

2.7V 10-Bit A/D Converter with SPI™ Serial Interface

Microchip Technology 

MCP3001

All parameters apply at VDD = 5V, VSS = 0V, VREF = 5V, TAMB = -40°C to +85°C, fSAMPLE = 200 ksps and fCLK = 14*fSAMPLE,

unless otherwise noted. Typical values apply for VDD = 5V, TAMB =25°C, unless otherwise noted.

Parameter

Sym

Min

Typ

Max Units

Conditions

Power Requirements:

Operating Voltage

VDD

2.7

—

5.5

V

Operating Current

IDD

—

400

500

µA VDD = 5.0V, DOUT unloaded

210

µA VDD = 2.7V, DOUT unloaded

Standby Current

IDDS

—

0.005

2

µA CS = VDD = 5.0V

Note 1: This parameter is guaranteed by characterization and not 100% tested.

2: See graph that relates linearity performance to VREF level.

3: Because the sample cap will eventually lose charge, clock rates below 10 kHz can affect linearity perfor-

mance, especially at elevated temperatures.

CS

CLK

tSUCS

DOUT

HI-Z

FIGURE 1-1: Serial Timing.

tCSH

tHI

tLO

tEN

tDO

tR

Null BIT

MSB OUT

tDIS

tF

LSB

HI-Z

DS21293C-page 4

© 2007 Microchip Technology Inc.

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