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參數(shù)資料
| 型號(hào)： | WM2626ID |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | Low Power Dual 8-bit Serial Input DAC with Internal Reference |
| 中文描述： | 低功耗雙8位串行輸入DAC的內(nèi)部參考 |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大?。?/td> | 109K |
| 代理商： | WM2626ID |
WM2626
Low Power Dual 8-bit Serial Input DAC
with Internal Reference
Production Data, Rev. 1.0, April 2001
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
www.wolfsonmicro.com
Production Data
Datasheets
contain final
specifications current on publication date.
Supply of products conforms to Wolfson
Microelectronics’ Terms and conditions.
2001 Wolfson Microelectronics Ltd
.
FEATURES
Dual 8-bit voltage output DAC
Single supply from 2.7V to 5.5V
Low power consumption:
-
1.7mW typical (3V supply, slow mode)
-
3.7mW typical (3V supply, fast mode)
DNL
±
0.1 LSB, INL
±
0.4 LSB (typical)
Monotonic over temperature
Microprocessor and DSP compatible serial interface
Programmable settling time of 0.8
μ
s or 2.8
μ
s typical
High impedance reference input buffer
APPLICATIONS
Digital servo control loops
Industrial process control
Battery powered instruments and controls
Machine and motion control devices
Digital offset and gain adjustment
ORDERING INFORMATION
DEVICE
TEMP. RANGE
PACKAGE
WM2626CD
0° to 70°C
8-pin SOIC
WM2626ID
-40° to 85°C
8-pin SOIC
DESCRIPTION
The WM2626 is a dual 8-bit voltage output, resistor string
digital-to-analogue converter. It can operate with supply
voltages between 2.7V and 5.5V and can be powered down
under software control. Power
consumption to 1
μ
A.
down
reduces
current
The device has been designed for glueless interface to industry
standard microprocessors and DSPs. It is programmed with a
16-bit serial word including 4 control bits and 8 data bits.
Excellent performance is delivered with a typical DNL of
0.2LSBs. Monotonicity is guaranteed over the operating
temperature range. The settling time of the DAC is
programmable to allow for optimisation of speed versus power
dissipation. The analogue output is buffered by a rail-to-rail
amplifier with a gain of two and a Class AB output stage.
The on-chip voltage reference is available to external circuitry
through the REF pin. It is buffered and can supply up to 1mA.
Alternatively, an external reference can be used. A high
impedance reference input buffer eliminates the need to keep
the reference source impedance low.
The WM2626 is available in an 8-pin SOIC package.
Commercial (0
°
to 70
°
C) and Industrial (-40
°
to 85
°
C)
temperature range variants are available.
BLOCK DIAGRAM
TYPICAL PERFORMANCE
WM2626
SERIAL
INTERFACE
AND
CONTROL
LOGIC
POWER-
DOWN AND
SPEED
CONTROL
X1
X1
X2
X2
REF
DIN
SCLK
NCS
OUTA
OUTB
8
8
2
DAC
DAC
x1/x2
1.024V
REF
2
GND
VDD
VDD = 5V, Slow Mode, V
REF
= 2.048V external
-0.04
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
0.04
0
32
64
96
128
160
192
224
256
DIGITAL CODE
D
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| WM2626CD | Low Power Dual 8-bit Serial Input DAC with Internal Reference |
| WM2626 | Low Power Dual 8-bit Serial Input DAC with Internal Reference |
| WM2627CDT | Quad 8-Bit Serial Input Voltage Output DAC |
| WM2627 | Quad 8-Bit Serial Input Voltage Output DAC |
| WM2627IDT | Quad 8-Bit Serial Input Voltage Output DAC |
相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| WM2627 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Quad 8-Bit Serial Input Voltage Output DAC |
| WM2627CDT | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Quad 8-Bit Serial Input Voltage Output DAC |
| WM2627IDT | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Quad 8-Bit Serial Input Voltage Output DAC |
| WM2629 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Octal 8-bit, Serial Input, Voltage Output DAC with Power Down |
| WM2630 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Octal 12-bit, Serial Input, Voltage Output DAC with Internal Reference |
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