MCP4821 datasheet(1/48 Pages) MICROCHIP

部件名	MCP4821

功能描述	8/10/12-Bit Voltage Output Digital-to-Analog Converter with Internal VREF and SPI Interface

PDF	48 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

标志

1 / 48 page

 2010 Microchip Technology Inc.

DS22244B-page 1

MCP4801/4811/4821

Features

• MCP4801: 8-Bit Voltage Output DAC

• MCP4811: 10-Bit Voltage Output DAC

• MCP4821: 12-Bit Voltage Output DAC

• Rail-to-Rail Output

• SPI Interface with 20 MHz Clock Support

• Simultaneous Latching of the DAC Output

with LDAC Pin

• Fast Settling Time of 4.5 µs

• Selectable Unity or 2x Gain Output

• 2.048V Internal Voltage Reference

•50 ppm/°C VREF Temperature Coefficient

• 2.7V to 5.5V Single-Supply Operation

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

Applications

• Set Point or Offset Trimming

• Sensor Calibration

• Precision Selectable Voltage Reference

• Portable Instrumentation (Battery-Powered)

• Calibration of Optical Communication Devices

Description

The MCP4801/4811/4821 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 devices have a high precision internal voltage

reference (VREF = 2.048V). The user can configure the

full-scale range of the device to be 2.048V or 4.096V by

setting the Gain Selection Option bit (gain of 1 of 2).

The devices can be operated in Active or Shutdown

mode by setting a Configuration register bit or using the

SHDN pin. In Shutdown mode, most of the internal

circuits, including the output amplifier, are turned off for

power savings, while the amplifier output (VOUT) stage is

configured to present a known high resistance output

load (500 k

 typical.

The

devices

include

double-buffered

registers,

allowing a synchronous update 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 DNL error, low ratio

metric temperature coefficient 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 MCP4801/4811/4821 devices are available in the

PDIP, SOIC, MSOP and DFN packages.

类似零件编号 - MCP4821

制造商	部件名	数据表	功能描述
Microchip Technology	MCP4821	1Mb / 36P	12-Bit DACs with Internal VREF and SPI??Interface 2005
	MCP4821	1Mb / 50P	SPI Interface with 20 MHz Clock Support 01/27/15
	MCP4821-E/MS	1Mb / 36P	12-Bit DACs with Internal VREF and SPI??Interface 2005
	MCP4821-E/P	1Mb / 36P	12-Bit DACs with Internal VREF and SPI??Interface 2005
	MCP4821-E/SN	1Mb / 36P	12-Bit DACs with Internal VREF and SPI??Interface 2005

More results

类似说明 - MCP4821

制造商	部件名	数据表	功能描述
Microchip Technology	MCP4821	1Mb / 36P	12-Bit DACs with Internal VREF and SPI??Interface 2005
	MCP4901	3Mb / 50P	8/10/12-Bit Voltage Output Digital-to-Analog Converter with SPI Interface 2010
	MCP4802	1Mb / 46P	8/10/12-Bit Dual Voltage Output Digital-to-Analog Converter with Internal VREF and SPI Interface 2010
	MCP4902	3Mb / 48P	8/10/12-Bit Dual Voltage Output Digital-to-Analog Converter with SPI Interface 2010
	MCP4706	15Mb / 86P	8-/10-/12-Bit Voltage Output Digital-to-Analog Converter with EEPROM and I2C Interface 2011
	MCP4822E-SN	1Mb / 46P	8/10/12-Bit Dual Voltage Output Digital-to-Analog Converter with Internal VREF and SPI Interface 01/05/10
	MCP4726A2T-E	16Mb / 86P	8-/10-/12-Bit Voltage Output Digital-to-Analog Converter 11/29/11
Texas Instruments	DAC6571EVM	732Kb / 25P	INTERFACE, VOLTAGE OUTPUT, 10-BIT DIGITAL-TO-ANALOG CONVERTER
Microchip Technology	MCP48FEBXX	1Mb / 92P	8-/10-/12-Bit Single/Dual Voltage Output Nonvolatile Digital-to-Analog Converters with SPI Interface 07/14/15
Microchip Technology	MCP48FVBXX	1Mb / 84P	8-/10-/12-Bit Single/Dual Voltage Output Volatile Digital-to-Analog Converters with SPI Interface 07/14/15