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參數(shù)資料
| 型號： | WM2617ID |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | Dual 10-Bit Serial DAC with Power Down |
| 中文描述： | 雙路10位串行DAC，具有掉電 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 91K |
| 代理商： | WM2617ID |
WM2617
Dual 10-Bit Serial DAC with Power Down
Production Data, Rev 1.1, October 2000
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’ Terms and Conditions.
2000 Wolfson Microelectronics Ltd
.
FEATURES
Two 10-bit DACs
Single supply from 2.7V to 5.5V supply operation
DNL
±
0.1 LSB, INL
±
0.5 LSB
Low power consumption
3mW typical in slow mode
8mW typical in fast mode
TMS320, (Q)SPI
, and Microwire
compatible serial
interface
Programmable settling time 4
μ
s or 12
μ
s typical
APPLICATIONS
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
TEMP. RANGE
PACKAGE
WM2617CD
0° to 70°C
8-pin SOIC
WM2617ID
-40° to 85°C
8-pin SOIC
DESCRIPTION
The WM2617 is a dual 10-bit voltage output, resistor string,
digital-to-analogue
converter.
ensures repeatable start-up conditions.
A
power-on-reset
function
The device has been designed to interface efficiently to industry
standard microprocessors and DSPs, including the TMS320
family. The WM2617 is programmed with a 16-bit serial word.
The WM2617 has a simple-to-use single 2.7V to 5.5V supply.
The digital inputs feature Schmitt triggers for high noise
immunity.
The number of clocks from the falling edge of NCS are counted
automatically. The device is then updated and disabled from
accepting further data inputs.
Excellent performance is delivered with a typical DNL of ±0.1
LSBs. The settling time of the DAC is programmable to allow
the designer to optimise speed versus power dissipation.
The device is available in an 8-pin SOIC package ideal for
space-critical applications. Commercial temperature (0° to
70°C) and industrial temperature (-40° to 85°C) variants are
supported.
BLOCK DIAGRAM
TYPICAL PERFORMANCE
(7) OUTB
(4) OUTA
10-BIT
DAC B
HOLDING
LATCH
10-BIT
DAC A
LATCH
REFIN(6)
POWER-ON
RESET
DIN (1)
SCLK (2)
NCS (3)
(5)
AGND
VDD
(8)
POWERDOWN/
SPEED
CONTROL
10-BIT
DAC B
CONTROL
LATCH
DAC
OUTPUT
BUFFER
2-BIT
CONTROL
LATCH
X1
X1
X2
X2
DAC
OUTPUT
BUFFER
REFERENCE
INPUT BUFFER
REFERENCE
INPUT BUFFER
WM2617
16-BIT
SHIFT
REGISTER
AND
CONTROL
LOGIC
data
-0.25
-0.2
-0.15
-0.1
-0.05
0
0.05
0.1
0.15
0.2
0.25
0
256
512
767
1023
DIGITAL CODE
D
VDD = 5V, V
REF
= 2.048V, Speed = Fast mode, Load = 10K/100pF
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| WM2619CDT | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:12-bit Parallel Input Voltage Output DAC |
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