- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄373920 > AD7854 (Analog Devices, Inc.) 12-Bit Sampling ADC(單電源,200kSPS 12位采樣A/D轉(zhuǎn)換器) PDF資料下載
參數(shù)資料
| 型號(hào)： | AD7854 |
| 廠(chǎng)商： | Analog Devices, Inc. |
| 英文描述： | 12-Bit Sampling ADC(單電源,200kSPS 12位采樣A/D轉(zhuǎn)換器) |
| 中文描述： | 12位采樣ADC（單電源，速度高達(dá)200ksps的12位采樣的A / D轉(zhuǎn)換器） |
| 文件頁(yè)數(shù)： | 1/28頁(yè) |
| 文件大小： | 268K |
| 代理商： | AD7854 |
當(dāng)前第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)
FUNCT IONAL BLOCK DIAGRAM
CALIBRATION
MEMORY
AND CONTROLLER
2.5V
REFERENCE
AV
DD
AGND
DV
DD
CLKIN
CONVST
BUSY
C
REF2
C
REF1
REF
IN
/
REF
OUT
AIN(–)
AIN(+)
DGND
DB11–DB0
WR
HBEN
RD
CS
PARALLEL INTERFACE/CONTROL REGISTER
AD7854/AD7854L
CHARGE
REDISTRIBUTION
DAC
T/H
BUF
COMP
SAR + ADC
CONTROL
REV. 0
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 V to 5 V Single Supply 200 kSPS
12-Bit Sampling ADC
AD7854/AD7854L*
FEATURES
Specified for V
DD
of 3 V to 5.5 V
Read-Only Operation
AD7854–200 kSPS; AD7854L–100 kSPS
System and Self-Calibration
Low Power
Normal Operation
AD7854: 15 mW (V
DD
= 3 V)
AD7854L: 5.5 mW (V
DD
= 3 V)
Automatic Power-Down After Conversion (25
m
W)
AD7854: 1.3 mW 10 kSPS
AD7854L: 650
m
W 10 kSPS
Flexible Parallel Interface
12-Bit Parallel / 8-Bit Parallel (AD7854)
28-Pin DIP, SOIC and SSOP Packages (AD7854)
APPLICATIONS
Battery-Powered Systems (Personal Digital Assistants,
Medical Instruments, Mobile Communications)
Pen Computers
Instrumentation and Control Systems
High Speed Modems
Analog Devices, Inc., 1996
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
PRODUCT HIGHLIGHT S
1. Operation with either 3 V or 5 V power supplies.
2. Flexible power management options including automatic
power-down after conversion. By using the power manage-
ment options a superior power performance at slower
throughput rates can be achieved:
AD7854: 1 mW typ @ 10 kSPS
AD7854L: 1 mW typ @ 20 kSPS
3. Operates with reference voltages from 1.2 V to AV
DD
.
4. Analog input ranges from 0 V to AV
DD
.
5. Self-calibration and system calibration.
6. Versatile parallel I/O port.
7. Lower power version AD7854L.
GE NE RAL DE SCRIPT ION
T he AD7854/AD7854L is a high speed, low power, 12-bit ADC
that operates from a single 3 V or 5 V power supply, the
AD7854 being optimized for speed and the AD7854L for low
power. T he ADC powers up with a set of default conditions at
which time it can be operated as a read-only ADC. T he ADC
contains self-calibration and system calibration options to en-
sure accurate operation over time and temperature and has a
number of power-down options for low power applications.
T he AD7854 is capable of 200 kHz throughput rate while the
AD7854L is capable of 100 kHz throughput rate. T he input
track-and-hold acquires a signal in 500 ns and features a pseudo-
differential sampling scheme. T he AD7854 and AD7854L input
voltage range is 0 to V
REF
(unipolar) and –V
REF
/2 to +V
REF
/2,
centered at V
REF
/2 (bipolar). T he coding is straight binary in
unipolar mode and twos complement in bipolar mode. Input
signal range is to the supply and the part is capable of convert-
ing full-power signals to 100 kHz.
CMOS construction ensures low power dissipation of typically
5.4 mW for normal operation and 3.6
μ
W in power-down mode.
T he part is available in 28-pin, 0.6 inch wide dual-in-line pack-
age (DIP), 28-lead small outline (SOIC) and 28-lead small
shrink outline (SSOP) packages.
*
Patent pending.
See Page 27 for data sheet index.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD7858LARS | 3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADC |
| AD7858BN | 3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADC |
| AD7858BR | 3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADC |
| AD7858AN | 3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADC |
| AD7858AR | 3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7854AD | 制造商:Analog Devices 功能描述: |
| AD7854AQ | 功能描述:IC ADC 12BIT PARALLEL LP 28-CDIP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:1 個(gè)單端，單極；1 個(gè)單端，雙極 |
| AD7854AR | 功能描述:IC ADC 12BIT PARALLEL LP 28-SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:1 個(gè)單端，單極；1 個(gè)單端，雙極 |
| AD7854AR-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 12-bit Parallel 28-Pin SOIC W T/R 制造商:Analog Devices 功能描述:ADC SGL SAR 200KSPS 12-BIT PARALLEL 28SOIC W - Tape and Reel |
| AD7854ARS | 功能描述:IC ADC 12BIT PARALLEL LP 28-SSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:1 個(gè)單端，單極；1 個(gè)單端，雙極 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。