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參數資料
| 型號： | WM5628LIN |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | 3 & 5V Octal 8-Bit Voltage Output DAC with Serial Interface |
| 中文描述： | 3 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 370K |
| 代理商： | WM5628LIN |
DEVICE
TEMP. RANGE PACKAGE
WM5628CN
WM5628CDW
WM5628IN
WM5628IDW
WM5628LCN
WM5628LCDW
WM5628LIN
WM5628LIDW
0
o
C to 70
o
C
0
o
C to 70
o
C
-40
o
C to 85
o
C
-40
o
C to 85
o
C
0
o
C to 70
o
C
0
o
C to 70
o
C
-40
o
C to 85
o
C
-40
o
C to 85
o
C
16 pin plastic DIP
16 pin wide-bodied plastic SO
16 pin plastic DIP
16 pin wide-bodied plastic SO
16 pin plastic DIP
16 pin wide-bodied plastic SO
16 pin plastic DIP
16 pin wide-bodied plastic SO
Lutton Court, Bernard Terrace, Edinburgh EH8 9NX, UK
Tel: +44 (0) 131 667 9386 Fax: +44 (0) 131 667 5176
email: admin@wolfson.co.uk
www: http://www.wolfson.co.uk
Description
WM5628L and WM5628 are Octal 8-bit digital to analogue
converters (DAC) controlled via a serial interface. Each
DAC's output voltage range is programmable for either x1
or x 2 its reference input voltage, allowing near rail to rail
operation for the x 2 output range. High impedance
buffered voltage reference inputs are provided for each
group of four DACs. WM5628L operates on a single
supply voltage of 3 V while WM5628 operates on 5 V.
WM5628/L interfaces to all popular microcontrollers and
microprocessors via a three wire serial interface with CMOS
compatible, schmitt trigger, digital inputs. An 12 bit
command word comprises 3 DAC select bits, an output
range selection bit and 8-bits of data.
Individual or all DAC outputs are changed using
WM5628/L's double buffered DAC registers and the
separate LOAD and LDAC inputs. DAC outputs are
updated simultaneously by writing a complete set of new
values and then pulsing the LDAC input.
The DAC outputs are optimised for single supply
operation and driving ground referenced loads.
An internal power-on-reset function sets the DAC's input
codes to zero at power up.
Ideal in space critical applications WM5628/L is available
in wide-bodied and DIP packages for commercial (0
o
C to
70
o
C) and industrial (-40
o
C to 85
o
C) temperature ranges.
Eight 8-bit voltage output DAC's
Three wire serial interface
Programmable x1 or x 2 output range.
Power-on-reset sets outputs to zero
Buffered voltage reference inputs
Simultaneous DAC output update
Key Specifications
Single supply operation:
WM5628L
WM5628
0 to 4 V output (x 2 output range) at 5 V V
DD
0 to 2.5 V output (x 2 output range) at 3 V V
DD
Guaranteed monotonic output
: 3 V
: 5 V
Applications
Programmable d.c. voltage sources
Digitally controlled attenuator/amplifier
Signal synthesis
Mobile communications
Automatic test equipment
Process control
3 & 5V Octal 8-Bit Voltage Output DAC
with Serial Interface
Features
Wolfson Microelectronics
Production Data
Sept. 1996 Rev 2
1996 Wolfson Microelectronics
Production Data
data sheets contain
final specifications current on publication
date. Supply of products conforms to
Wolfson Microelectronics standard terms
and conditions
Pin Configuration
Ordering Information
Top View
16 pin N and DW packages
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
DAC B
DAC A
GND
Data
C LK
V
DD
DAC E
DAC F
DAC
G
DAC H
Ref2
LDAC
Load
Ref1
DAC D
DAC C
WM5628L, WM5628
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