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參數(shù)資料
| 型號： | AD7945ARS-B |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | +3.3 V/+5 V Multiplying 12-Bit DACs |
| 中文描述： | PARALLEL, WORD INPUT LOADING, 5 us SETTLING TIME, 12-BIT DAC, PDSO20 |
| 封裝： | SSOP-20 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 329K |
| 代理商： | AD7945ARS-B |
FUNCTIONAL BLOCK DIAGRAMS
V
DD
R
FB
DGND
AD7948
DB7–DB0
DF/
DOR
CTRL
LDAC
WR
CSLSB
CSMSB
I
OUT1
AGND
V
REF
12-BIT DAC
12
12
DATA OVERRIDE LOGIC
12
DAC REGISTER
12
INPUT REGISTERS
CONTROL
LOGIC
DATA STEERING LOGIC
8
CS
WR
V
DD
R
FB
I
OUT1
AGND
V
REF
DGND
DB11–DB0
AD7945
12-BIT DAC
12
INPUT LATCH
12
AD7943
V
DD
R
FB
I
OUT1
I
OUT2
AGND
SRO
STB1
DGND
STB2
STB3
STB4
CLR
LD1
LD2
SRI
V
REF
12-BIT DAC
DAC REGISTER
INPUT SHIFT REGISTER
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
+3.3 V/+5 V Multiplying
12-Bit DACs
AD7943/AD7945/AD7948
FEATURES
12-Bit Multiplying DACs
Guaranteed Specifications with +3.3 V/+5 V Supply
0.5 LSBs INL and DNL
Low Power: 5
m
W typ
Fast Interface
40 ns Strobe Pulsewidth (AD7943)
40 ns Write Pulsewidth (AD7945, AD7948)
Low Glitch: 60 nV-s with Amplifier Connected
Fast Settling: 600 ns to 0.01% with AD843
APPLICATIONS
Battery-Powered Instrumentation
Laptop Computers
Upgrades for All 754x Series DACs (5 V Designs)
GENERAL DESCRIPTION
The AD7943, AD7945 and AD7948 are fast 12-bit multiplying
DACs that operate from a single +5 V supply (Normal Mode)
and a single +3.3 V to +5 V supply (Biased Mode). The
AD7943 has a serial interface, the AD7945 has a 12-bit parallel
interface, and the AD7948 has an 8-bit byte interface. They will
replace the industry-standard AD7543, AD7545 and AD7548
in many applications, and they offer superior speed and power
consumption performance.
The AD7943 is available in 16-lead DIP, 16-lead SOP (Small
Outline Package) and 20-lead SSOP (Shrink Small Outline
Package).
The AD7945 is available in 20-lead DIP, 20-lead SOP and 20-
lead SSOP.
The AD7948 is available in 20-lead DIP, 20-lead SOP and 20-
lead SSOP.
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., 1998
相關(guān)PDF資料 |
PDF描述 |
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| AD7948ARS-B | +3.3 V/+5 V Multiplying 12-Bit DACs |
| AD7943 | +3.3 V/+5 V Multiplying 12-Bit DACs(12位乘法D/A轉(zhuǎn)換器) |
| AD7945 | +3.3 V/+5 V Multiplying 12-Bit DACs(12位乘法D/A轉(zhuǎn)換器) |
| AD7992 | 2-Channel, 12-Bit ADC with I2C Compatible Interface in 10-Lead MSOP |
| AD7992BRM-0 | 2-Channel, 12-Bit ADC with I2C Compatible Interface in 10-Lead MSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7945ARS-BREEL | 功能描述:IC DAC 12BIT MULT PARALL 20-SSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產(chǎn)品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標(biāo)準(zhǔn)包裝:91 系列:- 設(shè)置時間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:8 電壓電源:單電源 功率耗散（最大）:2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-DFN-EP（4x3） 包裝:管件 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:* |
| AD7945ARSZ-B | 功能描述:IC DAC 12BIT MULT PARALL 20SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 設(shè)置時間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)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(yīng)商設(shè)備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)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 |
| AD7945ARSZ-BREEL | 功能描述:IC DAC 12BIT MULT PARALL 20SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產(chǎn)品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標(biāo)準(zhǔn)包裝:91 系列:- 設(shè)置時間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:8 電壓電源:單電源 功率耗散（最大）:2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-DFN-EP（4x3） 包裝:管件 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:* |
| AD7945BCHIPS | 功能描述:12 Bit Digital to Analog Converter 1 Die 制造商:analog devices inc. 系列:- 包裝:- 零件狀態(tài):上次購買時間 位數(shù):12 數(shù)模轉(zhuǎn)換器數(shù):1 建立時間:600μs（標(biāo)準(zhǔn)） 輸出類型:Current - Unbuffered 差分輸出:無 數(shù)據(jù)接口:并聯(lián) 參考類型:外部 電壓 - 電源，模擬:5V 電壓 - 電源，數(shù)字:5V INL/DNL（LSB）:±0.5（最大），±0.5（最大） 架構(gòu):R-2R 工作溫度:-40°C ~ 85°C 封裝/外殼:模具 供應(yīng)商器件封裝:模具 標(biāo)準(zhǔn)包裝:1 |
| AD7945BN | 功能描述:IC DAC 12BIT MULT PARALL 20-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)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(yīng)商設(shè)備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
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