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參數資料
| 型號： | WM2619 |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | 12-bit Parallel Input Voltage Output DAC |
| 中文描述： | 12位并行輸入電壓輸出DAC |
| 文件頁數： | 1/9頁 |
| 文件大小： | 124K |
| 代理商： | WM2619 |
WM2619
12-bit Parallel Input Voltage Output DAC
Production Data, June 1999, Rev 1.0
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.
Masterrev1.0a.doc June 17, 1999 10:52
1999 Wolfson Microelectronics Ltd
.
FEATURES
12-bit voltage output DAC
Single supply 2.7V to 5.5V operation
DNL ±0.4 LSB, INL ±1.5 LSB
Settling time 1μs typical
Low power consumption
-
8mW typical in slow mode - 5V supply
-
4.3mW typical in fast mode - 3V supply
Power down mode
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
WM2619CDT
0° to 70°C
20-pin TSSOP
WM2619IDT
-40° to 85°C
20-pin TSSOP
DESCRIPTION
The WM2619 is a 12-bit voltage output, resistor string, digital-to-
analogue converter. A hardware controlled power down mode is
provided that reduces power consumption to 50nW. In normal
operation the device dissipates 8mW at 5V or 4.3mW at 3V.
The device has been designed to interface efficiently to industry
standard microprocessors and DSPs.
Excellent performance is delivered with a typical DNL of 0.4 LSBs
and a settling time of 1
μ
s. The output stage is buffered by a x2
gain near rail-to-rail amplifier, which features a Class A output
stage. The 12 data bits are double-buffered enabling the output to
be asynchronously updated under hardware control.
The device is available in a 20-pin TSSOP package. Commercial
temperature (0° to 70°C) and Industrial temperature (-40° to 85°C)
variants are supported.
BLOCK DIAGRAM
TYPICAL PERFORMANCE
data
(13) OUT
REFIN(12)
POWER-ON
RESET
D[0-11]
(19,20, 1-10)
NWE (17)
(14)
GND
VDD
(11)
POWERDOWN
CONTROL
REFERENCE
INPUT BUFFER
WM2619
X1
X2
DAC
OUTPUT
BUFFER
NCS (18)
12-BIT
DAC
LATCH
12-BIT
INPUT
REGISTER
(15)
NPD
(16)
NLDAC
VDD = 5V, V
REF
= 2.048V, Load = 10k/100pF
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
0
512
1024
1536
2048
2559
3071
3583
4095
DIGITAL CODE
D
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相關代理商/技術參數 |
參數描述 |
|---|---|
| WM2619CDT | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:12-bit Parallel Input Voltage Output DAC |
| WM2619IDT | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:12-bit Parallel Input Voltage Output DAC |
| WM2623 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Low Power 8-bit Serial Input DAC |
| WM2623CD | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Low Power 8-bit Serial Input DAC |
| WM2623ID | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Low Power 8-bit Serial Input DAC |
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