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WM5615 Schematic ( PDF Datasheet ) - Wolfson Microelectronics plc

Teilenummer WM5615
Beschreibung 10-Bit Digital-to-Analogue Converter
Hersteller Wolfson Microelectronics plc
Logo Wolfson Microelectronics plc Logo 




Gesamt 12 Seiten
WM5615 Datasheet, Funktion
WM5615
Production Data
January 1997 Rev 2
10-Bit Digital-to-Analogue Converter
Description
The WM5615 is a 10-bit voltage output digital-to-
analogue converter (DAC) with a buffered reference input
(high impedance). The DAC produces a maximum output
voltage that is twice the reference voltage and the DAC is
monotonic. The device is simple to use, running from a
single supply of 5V. A power-on reset function is
incorporated to ensure repeatable start-up conditions.
Digital control of the WM5615 is over a 3-wire serial bus
that is CMOS compatible and easily interfaced to industry
standard microprocessor and microcontroller devices. The
device receives a 16-bit data word to produce the
analogue output. The digital inputs feature Schmitt
triggers for high noise immunity. Digital communication
protocols include the SPITM, QSPITM and MicrowireTM stand-
ards.
The 8-terminal small-outline D package allows digital
control of analogue functions in space-critical applications.
The WM5615C is characterised for operation from 0oC to
70oC. The WM5615I is for operation from -40oC to 85oC.
SPI and QSPI are trademarks of Motorola, Inc. Microwire is a trademark of
National Semiconductor Corp.
Block Diagram
Features
• 10-bit CMOS voltage output DAC in an
8-terminal package
• 5V single supply operation
• 3-wire serial interface
• High-impedance reference input
• Maximum voltage output twice reference
input voltage
• Internal power-on reset
• Low power consumption ... 1.75mW max
• 877kHz update rate
• Setting time to 0.5 LSB ... 12.5µs typical
• Monotonic over temperature
• Pin compatible with the Maxim MAX515
Applications
• Battery-powered test Instruments
• Digital offset and gain adjustment
• Battery-operated/remote industrial controls
• Machine and motion control devices
• Cellular telephones
REFIN
AGND
CS
SCLK
DIN
+
-
+
RESISTOR
STRING
DAC
-R
POWER-ON
RESET
CONTROL
LOGIC
R
10-BIT DAC REGISTER
(LSB)
2
Xs
(MSB) 4
DUMMY
BITS
16-BIT SHIFT REGISTER
VOUT
VDD
DOUT
5
Production Data data sheets contain final
specifications current on publication date.
Supply of products conforms to Wolfson Mi-
croelectronics standard terms and conditions.
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
© 1996 Wolfson Microelectronics






WM5615 Datasheet, Funktion
WM5615
Typical Performance Characteristics
0. 2
0. 15
0. 1
0. 05
0
-0.05
-0.1
-0.15
-0.2
0
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
0
256 512
INPUT CODE
WM5615 DNL Linearity Error
768
256 512
INPUT CODE
WM5615 INL Linearity Error
768
1024
1024
Wolfson Microelectronics
6

6 Page









WM5615 pdf, datenblatt
WM5615
Package Descriptions
Dual-In-Line Package
N or P
N
0.325
0.290
105O
90O
0.014
0.008
0.280
0.015
Min.
0.240
0.210 Max.
Seating
plane
0.150
0.115
1
Dimension 'A' Variations
N Min
8 0.355
14 0.735
16 0.735
20 0.940
Max
0.400
0.775
0.775
0.975
0.005
Min.
A
0.070 Max.
Pin spacing
0.100 B.S.C.
0.045
0.030
0.022
0.014
N/2
Notes:
A . Dimensions are in inches
B. Falls within JEDEC MS-001( 20 pin package is shorter than MS-001)
C. N is the maximum number of terminals
D. All end pins are partial width pins as shown, except the 14 pin package which is full
width.
Rev. 1 November 96
Wolfson Microelectronics
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