파트넘버.co.kr WM5620 데이터시트 PDF


WM5620 반도체 회로 부품 판매점

3 & 5V Quad 8-Bit Voltage Output DAC with Serial Interface



Wolfson Microelectronics plc 로고
Wolfson Microelectronics plc
WM5620 데이터시트, 핀배열, 회로
WM5620L, WM5620
Production Data
Sept. 1996 Rev 2
3 & 5V Quad 8-Bit Voltage Output DAC
with Serial Interface
Description
WM5620L and WM5620 are quad 8-bit digital to analogue
converters (DAC) controlled via a serial interface. Each
DAC's output voltage range isprogrammable for either x1
or x 2 its reference input voltage, allowing near rail to rail
operation for the x 2 output range. Separate high
impedance buffered voltage reference inputs are provided
for each DAC. WM5620L operates on a single supply
voltage of 3 V while WM5620 operates on 5 V.
WM5620/L interfaces to all popular microcontrollers and
microprocessors via a three wire serial interface with CMOS
compatible, schmitt trigger, digital inputs. An 11 bit
command word comprises 2 DAC select bits, an output
range selection bit and 8-bits of data.
Individual or all DAC outputs are changed using WM5620/
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 WM5620/L is available
in small outline and DIP packages for commercial (0oC to
70oC) and industrial (-40oC to 85oC) temperature ranges.
Features
• Four 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
• 14 pin SO or DIP package
Key Specifications
• Single supply operation:
WM5620L : 3 V
WM5620 : 5 V
• 0 to 4 V output (x 2 output range) at 5 V VDD
• 0 to 2.5 V output (x 2 output range) at 3 V VDD
• Low power: 5.1 mW at 3 V, 10 mW at 5 V max.
• Guaranteed monotonic output
Applications
• Programmable d.c. voltage sources
• Digitally controlled attenuator/amplifier
• Signal synthesis
• Mobile communications
• Automatic test equipment
• Process control
Block Diagram
2
Ref A
Ref B 3
4
Ref C
Ref D 5
Clk 7
Data 6
Load 8
9 Latch
9 Latch
9 Latch
9 Latch
14 VDD
DAC
Latch 8
DAC
Latch 8
DAC
Latch 8
DAC
Latch 8
x2
x2
x2
x2
12
DACA
11
DACB
10
DACC
9
DACD
Serial Interface
13 LDAC
Power-on-Reset
1 GND
Production Data data sheets contain
final specifications current on publication
date. Supply of products conforms to
Wolfson Microelectronics standard terms
and conditions
Wolfson Microelectronics © 1996 Wolfson Microelectronics
Lutton Court, Bernard Terrace, Edinburgh EH8 9NX, UK
Tel: +44 (0) 131 667 9386 Fax: +44 (0) 131 667 5176
www: http://www.wolfson.co.uk


WM5620 데이터시트, 핀배열, 회로
WM5620L, WM5620
Pin Configuration
Top View N and D packages
Ordering Information
DEVICE
WM5620CN
WM5620CD
WM5620IN
WM5620ID
WM5620LCN
WM5620LCD
WM5620LIN
WM5620LID
TEMP. RANGE
0oC to 70oC
0oC to 70oC
-40oC to 85oC
-40oC to 85oC
0oC to 70oC
0oC to 70oC
-40oC to 85oC
-40oC to 85oC
PACKAGE
14 pin plastic DIP
14 pin plastic SO
14 pin plastic DIP
14 pin plastic SO
14 pin plastic DIP
14 pin plastic SO
14 pin plastic DIP
14 pin plastic SO
Absolute Maximum Ratings (note 1)
Supply Voltage (VDD - VGND) . . . . . . . . . . . . +7V
Digital Inputs . . . . . . . . . . GND - 0.3 V, VDD + 0.3 V
Reference inputs . . . . . . . GND - 0.3 V, VDD + 0.3 V
Operating temperature range, TA . . . . . . TMIN to TMAX
WM5620_C_ . . . . . . . . . . . . . . . . 0oC to +70oC
WM5620_I_ . . . . . . . . . . . . . . . . -40oC to +85oC
Storage Temperature_ . . . . . . . . . . -50oC to +150oC
Lead Temperature 1.6mm (1/16 inch) from case
(soldering, 10 sec) . . . . . . . . . . . . . . . + 260oC
Recommended Operating Conditions
Supply voltage WM5620
Supply Voltage WM5620L
Reference input range x1 gain
DAC output load resistance to GND
High level digital input voltage
Low level digital input voltage
Clock frequency
SYMBOL
VDD
VDD
VREF [A/B/C/D]
RL
VIH
VIL
FCLK
MIN
4.75
2.7
10
0.8 VDD
NOMINAL
3.3
MAX UNIT
5.25 V
5.25 V
VDD - 1.5 V
k
V
0.8 V
1 MHz
Electrical Characteristics: WM5620
VDD = 5 V, GND = 0 V, VREF = 2 V, RL = 10 k, CL = 100 pF, TA = full range, unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
Power Supply
Supply current
Static Accuracy
Resolution
Monotonicity
Differential Nonlinearity
Integral Nonlinearity
Zero-code error
Zero-code error
temperature coefficient
Zero-code error
supply rejection
IDD VDD = 5V
DNL
INL
ZCE
VREF = 2 V, Range x 2. (note 3)
VREF = 2 V, Range x 2. (note 4)
VREF = 2 V, Range x 2. (note 5)
Input code = 00 Hex (note 6)
Input code = 00 Hex (note 7)
MIN
8
8
0
TYP
± 0.1
10
0.5
MAX UNIT
2 mA
± 0.9
± 1.0
30
Bits
Bits
LSB
LSB
mV
µV/OC
mV/V
Wolfson Microelectronics
2




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