MCP4901T-E/P MICROCHIP [Microchip Technology], MCP4901T-E/P Datasheet

MCP4901T-E/P

Manufacturer Part Number

MCP4901T-E/P

Description

8/10/12-Bit Voltage Output Digital-to-Analog Converter with SPI Interface

Manufacturer

MICROCHIP [Microchip Technology]

Datasheet

1.MCP4901T-EP.pdf (50 pages)

Current page: 1 of 50
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Features

• MCP4901: 8-Bit Voltage Output DAC

• MCP4911: 10-Bit Voltage Output DAC

• MCP4921: 12-Bit Voltage Output DAC

• Rail-to-Rail Output

• SPI Interface with 20 MHz Clock Support

• Simultaneous Latching of the DAC Output

• Fast Settling Time of 4.5 µs

• Selectable Unity or 2x Gain Output

• External Voltage Reference Input

• External Multiplier Mode

• 2.7V to 5.5V Single-Supply Operation

• Extended Temperature Range: -40°C to +125°C

Applications

• Set Point or Offset Trimming

• Precision Selectable Voltage Reference

• Motor Control Feedback Loop

• Digitally-Controlled Multiplier/Divider

• Calibration of Optical Communication Devices

Related Products

 2010 Microchip Technology Inc.

MCP4801

MCP4811

MCP4821

MCP4802

MCP4812

MCP4822

MCP4901

MCP4911

MCP4921

MCP4902

MCP4912

MCP4922

Note: The products listed here have similar AC/DC

performances.

with LDAC Pin

P/N

8/10/12-Bit Voltage Output Digital-to-Analog Converter

Resolution

DAC

Channels

No. of

MCP4901/4911/4921

with SPI Interface

Reference

(2.048V)

External

Voltage

Internal

REF

)

Description

The MCP4901/4911/4921 devices are single channel

8-bit, 10-bit and 12-bit buffered voltage output

Digital-to-Analog Converters (DACs), respectively. The

devices operate from a single 2.7V to 5.5V supply with

an SPI compatible Serial Peripheral Interface. The user

can configure the full-scale range of the device to be

(gain of 1 of 2).

The user can shut down the device by setting the Con-

figuration Register bit. In Shutdown mode, most of the

internal circuits are turned off for power savings, and

the output amplifier is configured to present a known

high resistance output load (500 ktypical.

The

allowing synchronous updates of the DAC output using

the LDAC pin. These devices also incorporate a

Power-on Reset (POR) circuit to ensure reliable power-

up.

The devices utilize a resistive string architecture, with

its inherent advantages of low Differential Non-Linear-

ity (DNL) error and fast settling time. These devices are

specified over the extended temperature range

(+125°C).

The devices provide high accuracy and low noise

performance for consumer and industrial applications

where calibration or compensation of signals (such as

temperature, pressure and humidity) are required.

The MCP4901/4911/4921 devices are available in the

PDIP, SOIC, MSOP and DFN packages.

Package Types

REF

8-Pin PDIP, SOIC, MSOP

SCK

SDI

* Includes Exposed Thermal Pad (EP); see

or 2*V

devices

REF

MCP4901: 8-bit single DAC

MCP4911: 10-bit single DAC

MCP4921: 12-bit single DAC

by setting the gain selection option bit

include

LDAC

OUT

REF

double-buffered

SCK

SDI

DFN-8 (2x3)

DS22248A-page 1

Table

registers,

LDAC

OUT

REF

3-1.

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