Datasheet > WM5621L

WM5621L

更新时间： 2024-11-20 22:13:51

品牌	Logo	应用领域
欧胜 - WOLFSON		/
页数	文件大小	规格书
14页	515K
描述
Low-power Quadruple 8-Bit DAC

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WM5621L 数据手册

WM5621L

Production Data

Jan. 1997 Rev. 1.0

Low-power Quadruple 8-Bit DAC

Description

Features

WM5621L is a quadruple 8-bit digital to analogue converter

(DAC) with buffered reference inputs (high impedance). The

DAC produces an output voltage that ranges between

either one or two times the reference voltage and GND. The

DAC is monotonic. The device operates from a single

supply in the range 2.7V to 5.5V. A power-on reset function

is incorporated to provide repeatable start-up conditions. A

global hardware shut-down terminal and the capacity to

shut-down each individual DAC with software are provided

to minimize power consumption.

•

Individual (or all) DAC's can be powered-down

One low-power 8-bit voltage output DAC

Three 8-bit voltage output DACs

Fast serial interface (1 MHz max)

Simple 2 or 3 wire interface

Programmable for 1 or 2 times output range

High impedance reference inputs for each DAC

Simultaneous update facility

Extended temperature range (-25^oC to 85^oC)

Single supply operation, range 2.7 V to 5.5 V

0 to 4 V output (x2 output range) at 5 V VDD

0 to 2.5 V output (x2 output range) at 3 V VDD

Low power specification:

WM5621L interfaces to all popular microcontrollers and

microprocessors via a three wire serial interface with CMOS

compatible, schmitt trigger, digital inputs. Alternatively a two

wire serial interface can be activated. An 11-bit command

word consists of eight bits of data, two DAC select bits and

a range bit for selection between the times one or times two

output range. The DACregisters are double buffered which

allows a complete set of new values to be written to the

device, and then under control of HWACT, all of the DAC

outputs are simultaneously updated.

All DACs on

: 3.6 mW at 3.6 V typ

: 6 mW at 5 V typ

: 0.54 mW at 3.6V typ

: 0.18 mW at 3.6V typ

Low power DAC

All DAC's shutdown

•

Guaranteed monotonic output

Applications

Ideal in space critical applications WM5621L is available

in small outline and DIP packages and is characterized for

operation from -25^oC to 85^oC.

•

Mobile Communications

Programmable d.c. voltage sources

Digitally controlled attenuator/amplifier

Signal synthesis

Automatic test equipment

Block Diagram

Production Data data sheets contain final

Wolfson Microelectronics

specifications current on publication date. Supply

of products conforms to Wolfson Microelectronics

standard terms and conditions

Lutton Court, Bernard Terrace, Edinburgh EH8 9NX, UK

Tel: +44 (0) 131 667 9386

email: admin@wolfson.co.uk

www: http://www.wolfson.co.uk

Fax: +44 (0) 131 667 5176

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与WM5621L相关器件

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WM5621LED	WOLFSON	获取价格	Low-power Quadruple 8-Bit DAC
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WM5628CDW	WOLFSON	获取价格	3 & 5V Octal 8-Bit Voltage Output DAC with Serial Interface
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WM5628IDW	WOLFSON	获取价格	3 & 5V Octal 8-Bit Voltage Output DAC with Serial Interface
WM5628IN	WOLFSON	获取价格	3 & 5V Octal 8-Bit Voltage Output DAC with Serial Interface
WM5628L	WOLFSON	获取价格	3 & 5V Octal 8-Bit Voltage Output DAC with Serial Interface
WM5628LCDW	WOLFSON	获取价格	3 & 5V Octal 8-Bit Voltage Output DAC with Serial Interface
WM5628LCN	WOLFSON	获取价格	3 & 5V Octal 8-Bit Voltage Output DAC with Serial Interface
WM5628LIDW	WOLFSON	获取价格	3 & 5V Octal 8-Bit Voltage Output DAC with Serial Interface

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