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參數資料
| 型號： | AD7845JP |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | LC2MOS Complete 12-Bit Multiplying DAC |
| 中文描述： | PARALLEL, WORD INPUT LOADING, 2.5 us SETTLING TIME, 12-BIT DAC, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 193K |
| 代理商： | AD7845JP |
REV. B
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
LC
2
MOS
Complete 12-Bit Multiplying DAC
AD7845
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., 1999
FUNCTIONAL BLOCK DIAGRAM
PRODUCT HIGHLIGHTS
1. Voltage Output Multiplying DAC
The AD7845 is the first DAC which has a full 4-quadrant
multiplying capability and an output amplifier on chip. All
specifications include amplifier performance.
2. Matched Application Resistors
Three application resistors provide an easy facility for gain
ranging, voltage offsetting, etc.
3. Space Saving
The AD7845 saves space in two ways. The integration of the
output amplifier on chip means that chip count is reduced.
The part is housed in skinny 24-lead 0.3" DIP, 28-terminal
LCC and PLCC and 24-terminal SOIC packages.
GENERAL DESCRIPTION
The AD7845 is the industry’s first 4-quadrant multiplying D/A
converter with an on-chip amplifier. It is fabricated on the
LC
2
MOS process, which allows precision linear components
and digital circuitry to be implemented on the same chip.
The 12 data inputs drive latches which are controlled by stan-
dard
CS
and
WR
signals, making microprocessor interfacing
simple. For stand-alone operation, the
CS
and
WR
inputs can
be tied to ground, making all latches transparent. All digital
inputs are TTL and 5 V CMOS compatible.
The output amplifier can supply
±
10 V into a 2 k
load. It is
internally compensated, and its input offset voltage is low due to
laser trimming at wafer level. For normal operation, R
FB
is tied
to V
OUT
, but the user may alternatively choose R
A
, R
B
or R
C
to
scale the output voltage range.
FEATURES
12-Bit CMOS MDAC with Output Amplifier
4-Quadrant Multiplication
Guaranteed Monotonic (T
MIN
to T
MAX
)
Space-Saving 0.3" DIPs and 24- or 28-Terminal Surface
Mount Packages
Application Resistors On Chip for Gain Ranging, etc.
Low Power LC
2
MOS
APPLICATIONS
Automatic Test Equipment
Digital Attenuators
Programmable Power Supplies
Programmable Gain Amplifiers
Digital-to-4–20 mA Converters
相關PDF資料 |
PDF描述 |
|---|---|
| AD7845JR | LC2MOS Complete 12-Bit Multiplying DAC |
| AD7845KN | LC2MOS Complete 12-Bit Multiplying DAC |
| AD7845KP | LC2MOS Complete 12-Bit Multiplying DAC |
| AD7845KR | LC2MOS Complete 12-Bit Multiplying DAC |
| AD7846KN | LC2MOS 16-Bit Voltage Output DAC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7845JP-REEL | 功能描述:Bit Digital to Analog Converter 28-PLCC (11.51x11.51) 制造商:analog devices inc. 系列:* 包裝:帶卷（TR） 零件狀態:上次購買時間 位數:* 數模轉換器數:* 建立時間:* 輸出類型:* 差分輸出:* 數據接口:* 參考類型:* 電壓 - 電源，模擬:* 電壓 - 電源，數字:* INL/DNL（LSB）:* 架構:* 工作溫度:* 封裝/外殼:28-LCC（J 形引線） 供應商器件封裝:28-PLCC（11.51x11.51） 標準包裝:1 |
| AD7845JPZ | 功能描述:IC DAC 12BIT MULT LC2MOS 28-PLCC RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:- 標準包裝:1 系列:- 設置時間:4.5µs 位數:12 數據接口:串行，SPI? 轉換器數目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:* 其它名稱:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
| AD7845JPZ-REEL | 功能描述:IC DAC 12BIT MULT LC2MOS 28-PLCC RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:- 標準包裝:47 系列:- 設置時間:2µs 位數:14 數據接口:并聯 轉換器數目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:管件 輸出數目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
| AD7845JR | 功能描述:IC DAC 12BIT MULT LC2MOS 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:- 產品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設置時間:7µs 位數:16 數據接口:并聯 轉換器數目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC（J 形引線） 供應商設備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
| AD7845JRZ | 功能描述:IC DAC 12BIT MULT LC2MOS 24-SOIC 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:50 系列:- 設置時間:4µs 位數:12 數據接口:串行 轉換器數目:2 電壓電源:單電源 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:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:8-uMAX 包裝:管件 輸出數目和類型:2 電壓，單極 采樣率（每秒）:* 產品目錄頁面:1398 (CN2011-ZH PDF) |
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