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DAC0832LCN 参数 Datasheet PDF下载

DAC0832LCN图片预览
型号: DAC0832LCN
PDF下载: 下载PDF文件 查看货源
内容描述: 8位P兼容,双缓冲模数转换器 [8-Bit P Compatible, Double-Buffered D to A Converters]
分类和应用: 转换器数模转换器模数转换器光电二极管
文件页数/大小: 28 页 / 555 K
品牌: NSC [ NATIONAL SEMICONDUCTOR ]
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DAC0830/DAC0832 8-Bit µP Compatible, Double-Buffered D to A Converters
March 2002
DAC0830/DAC0832
8-Bit µP Compatible, Double-Buffered D to A Converters
General Description
The DAC0830 is an advanced CMOS/Si-Cr 8-bit multiplying
DAC designed to interface directly with the 8080, 8048,
8085, Z80
®
, and other popular microprocessors. A deposited
silicon-chromium R-2R resistor ladder network divides the
reference current and provides the circuit with excellent
temperature tracking characteristics (0.05% of Full Scale
Range maximum linearity error over temperature). The cir-
cuit uses CMOS current switches and control logic to
achieve low power consumption and low output leakage
current errors. Special circuitry provides TTL logic input volt-
age level compatibility.
Double buffering allows these DACs to output a voltage
corresponding to one digital word while holding the next
digital word. This permits the simultaneous updating of any
number of DACs.
The DAC0830 series are the 8-bit members of a family of
microprocessor-compatible DACs (MICRO-DAC
).
Features
n
Double-buffered, single-buffered or flow-through digital
data inputs
n
Easy interchange and pin-compatible with 12-bit
DAC1230 series
n
Direct interface to all popular microprocessors
n
Linearity specified with zero and full scale adjust
only — NOT BEST STRAIGHT LINE FIT.
n
Works with
±
10V reference-full 4-quadrant multiplication
n
Can be used in the voltage switching mode
n
Logic inputs which meet TTL voltage level specs (1.4V
logic threshold)
n
Operates “STAND ALONE” (without µP) if desired
n
Available in 20-pin small-outline or molded chip carrier
package
Key Specifications
n
n
n
n
n
n
Current settling time: 1 µs
Resolution: 8 bits
Linearity: 8, 9, or 10 bits (guaranteed over temp.)
Gain Tempco: 0.0002% FS/˚C
Low power dissipation: 20 mW
Single power supply: 5 to 15 V
DC
Typical Application
00560801
BI-FET
and MICRO-DAC
are trademarks of National Semiconductor Corporation.
Z80
®
is a registered trademark of Zilog Corporation.
© 2002 National Semiconductor Corporation
DS005608
www.national.com