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參數資料
| 型號： | DAC8222GP |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | Dual 12-Bit Double-Buffered Multiplying CMOS D/A Converter |
| 中文描述： | PARALLEL, WORD INPUT LOADING, 12-BIT DAC, PDIP24 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-24 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 491K |
| 代理商： | DAC8222GP |
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Dual 12-Bit Double-Buffered
Multiplying CMOS D/A Converter
DAC8222
FEATURES
Two Matched 12-Bit DACs on One Chip
Direct Parallel Load of All 12 Bits for High Data
Throughput
Double-Buffered Digital Inputs
12-Bit Endpoint Linearity ( 1/2 LSB) Over Temperature
+5 V to +15 V Single Supply Operation
DACs Matched to 1% Max
Four-Quadrant Multiplication
Improved ESD Resistance
Packaged in a Narrow 0.3" 24-Lead DIP and 0.3"
24- Lead SOL Package
Available in Die Form
APPLICATIONS
Automatic Test Equipment
Robotics/Process Control/Automation
Digital Gain/Attenuation Control
Ideal for Battery-Operated Equipment
GENERAL DESCRIPTION
The DAC8222 is a dual 12-bit, double-buffered, CMOS digital-
to-analog converter. It has a 12-bit wide data port that allows a
12-bit word to be loaded directly. This achieves faster through-
put time in stand-alone systems or when interfacing to a 16-bit
processor. A common 12-bit input TTL/CMOS compatible
data port is used to load the 12-bit word into either of the two
DACs. This port, whose data loading is similar to that of a RAM’s
write cycle, interfaces directly with most 12-bit and 16-bit bus
systems. (See DAC8248 for a complete 8-bit data bus interface
product.) A common bus allows the DAC8222 to be packaged
in a narrow 24-lead 0.3" DIP and save PCB space.
The DAC is controlled with two signals,
WR
and
LDAC
. With
logic low at these inputs, the DAC registers become transparent.
This allows direct unbuffered data to flow directly to either
DAC output selected by
DAC A
/DAC B. Also, the DAC’s
FUNCTIONAL DIAGRAM
double-buffered digital inputs will allow both DACs to be
simultaneously updated.
DAC8222’s monolithic construction offers excellent DAC-to-
DAC matching and tracking over the full operating tempera-
ture range. The chip consists of two thin-film R-2R resistor
ladder networks, four 12-bit registers, and DAC control logic
circuitry. The device has separate reference-input and feedback
resistors for each DAC and operates on a single supply from
+5 V to +15 V. Maximum power dissipation at +5 V using
zero or V
DD
logic levels is less than 0.5 mW.
The DAC8222 is manufactured with highly stable thin-film re-
sistors on an advanced oxide-isolated, silicon-gate, CMOS
technology. Improved latch-up resistant design eliminates the
need for external protective Schottky diodes.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2000
相關PDF資料 |
PDF描述 |
|---|---|
| DAC8222EW | Dual 12-Bit Double-Buffered Multiplying CMOS D/A Converter |
| DAC8228FR | Dual 8-Bit CMOS D/A Converter with Voltage Output |
| DAC8228FS | Dual 8-Bit CMOS D/A Converter with Voltage Output |
| DAC8228 | Dual 8-Bit CMOS D/A Converter with Voltage Output |
| DAC8228FP | Dual 8-Bit CMOS D/A Converter with Voltage Output |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DAC8222GPZ | 功能描述:IC DAC 12BIT DUAL W/BUFF 24DIP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1,000 系列:- 設置時間:1µs 位數:8 數據接口:串行 轉換器數目:8 電壓電源:雙 ± 功率耗散（最大）:941mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC W 包裝:帶卷 (TR) 輸出數目和類型:8 電壓，單極 采樣率（每秒）:* |
| DAC8222HP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| DAC8222HS | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| DAC8228 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual 8-Bit CMOS D/A Converter with Voltage Output |
| DAC8228FP | 功能描述:IC DAC 8BIT DUAL V-OUT 20-DIP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:- 標準包裝:2,400 系列:- 設置時間:- 位數:18 數據接口:串行 轉換器數目:3 電壓電源:模擬和數字 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:36-TFBGA 供應商設備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數目和類型:* 采樣率（每秒）:* |
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