WM2616ID Datasheet

IC型號(hào)：
WM2616ID
PDF描述：
12-bit Serial Input Voltage Output DAC
文件大?。?/label>
135.01KB
PDF頁數(shù)：
9頁
芯片廠家：
WOLFSON

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WM2616

12-bit Serial Input Voltage Output DAC

Production Data June 1999, Rev1.0

FEATURES

鈥?/div>

12-bit voltage output DAC

Single supply from 2.7V to 5.5V

DNL

鹵

0.5 LSB, INL

鹵

1.9 LSB

Very low power consumption (3V supply):

- 900碌 W, slow mode

碌

- 2.1mW, fast mode

TMS320, (Q)SPI鈩?, and Microwire鈩?compatible serial

鈩?/div>

interface

Programmable settling time of 4碌 s or 12碌 s typical

碌

High impedance reference input buffer

DESCRIPTION

The WM2616 is a 12-bit voltage output, resistor string digital-to-

analogue converter that can be powered down under software

control. Power down reduces current consumption to 10nA.

The device has been designed to interface efficiently to industry

standard microprocessors and DSPs, including the TMS320

family. The WM2616 is programmed with a 16-bit serial word

comprising 4 control bits and 12 data bits.

Excellent performance is delivered with a typical DNL of 0.5LSBs.

The settling time of the DAC is programmable to allow the designer

to optimize speed versus power dissipation. The output stage is

buffered by a x2 gain rail-to-rail amplifier, which features a Class

AB output stage.

The device is available in an 8-pin SOIC package. Commercial

temperature (0擄 to 70擄C) and Industrial temperature (-40擄 to 85擄C)

variants are supported.

鈥?/div>

APPLICATIONS

鈥?/div>

Battery powered test instruments

Digital offset and gain adjustment

Battery operated/remote industrial controls

Machine and motion control devices

Wireless telephone and communication systems

Speech synthesis

Arbitrary waveform generation

ORDERING INFORMATION

DEVICE

WM2616CD

WM2616ID

TEMP. RANGE

0擄 to 70擄C

-40擄 to 85擄C

PACKAGE

8-pin SOIC

BLOCK DIAGRAM

VDD

(8)

TYPICAL PERFORMANCE

REFERENCE

INPUT BUFFER

REFIN(6)

DAC

OUTPUT

BUFFER

(7) OUT

AVDD = DVDD = 5V, V

REF

= 2.048V, Speed = Fast mode, Load = 10k/100pF

0.8

0.6

DIN (1)

data

16-BIT

SHIFT

AND

CONTROL

LOGIC

12-BIT

DAC

LATCH

0.4

SCLK (2)

NCS (3)

FS (4)

0.2

DNL - LSB

-0.2

-0.4

-0.6

POWER-ON

RESET

2-BIT

CONTROL

LATCH

POWERDOWN/

SPEED

CONTROL

-0.8

WM2616

-1

512

1024

1536

2048

DIGITAL CODE

2559

3071

3583

4095

(5)

AGND

WOLFSON MICROELECTRONICS LTD

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

Tel: +44 (0) 131 667 9386

Fax: +44 (0) 131 667 5176

Email: sales@wolfson.co.uk

http://www.wolfson.co.uk

Production Data

Datasheets contain final

specifications current on publication date.

Supply of products conforms to Wolfson

Microelectronics鈥?Terms and conditions.

2616 master.doc June 17, 1999 14:13

漏1999

Wolfson Microelectronics Ltd

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