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| 型號： | AD7859 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADCs(單電源,200kSPS 8通道12位采樣A/D轉(zhuǎn)換器) |
| 中文描述： | 3 V至5 V單電源，200 kSPS的8通道，12位采樣ADC（單電源，速度高達(dá)200ksps的8通道12位采樣的A / D轉(zhuǎn)換器） |
| 文件頁數(shù)： | 1/28頁 |
| 文件大小： | 555K |
| 代理商： | AD7859 |
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FUNCTIONAL BLOCK DIAGRAM
2.5V
REFERENCE
CALIBRATION MEMORY
AND
CONTROLLER
PARALLEL INTERFACE/CONTROL REGISTER
I/P
MUX
CHARGE
REDISTRIBUTION
DAC
SAR + ADC
CONTROL
T/H
BUF
AIN1
AIN8
REF
IN
/
REF
OUT
C
REF1
C
REF2
CAL
DV
DD
DGND
CLKIN
CONVST
BUSY
SLEEP
AV
DD
AGND
DB15 – DB0
RD
CS
WR
W/
B
AD7859/AD7859L
COMP
REV. A
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
8-Channel, 12-Bit Sampling ADCs
AD7859/AD7859L*
FEATURES
Specified for V
DD
of 3 V to 5.5 V
AD7859–200 kSPS; AD7859L–100 kSPS
System and Self-Calibration
Low Power
Normal Operation
AD7859: 15 mW (V
DD
= 3 V)
AD7859L: 5.5 mW (V
DD
= 3 V)
Using Automatic Power-Down After Conversion (25
m
W)
AD7859: 1.3 mW (V
DD
= 3 V 10 kSPS)
AD7859L: 650
m
W (V
DD
= 3 V 10 kSPS)
Flexible Parallel Interface:
16-Bit Parallel/8-Bit Parallel
44-Pin PQFP and PLCC Packages
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
GENERAL DESCRIPTION
The AD7859/AD7859L are high speed, low power, 8-channel,
12-bit ADCs which operate from a single 3 V or 5 V power
supply, the AD7859 being optimized for speed and the
AD7859L for low power. The ADC contains self-calibration
and system calibration options to ensure accurate operation over
time and temperature and have a number of power-down
options for low power applications.
The AD7859 is capable of 200 kHz throughput rate while the
AD7859L is capable of 100 kHz throughput rate. The input
track-and-hold acquires a signal in 500 ns and features a pseudo-
differential sampling scheme. The AD7859 and AD7859L input
voltage range is 0 to V
REF
(unipolar) and –V
REF
/2 to +V
REF
/2
about V
REF
/2 (bipolar) with both straight binary and 2s comple-
ment output coding respectively. Input signal range is to the
supply and the part is capable of converting 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.
The part is available in 44-pin, plastic quad flatpack package
(PQFP) and plastic lead chip carrier (PLCC).
*
Patent pending.
See page 28 for data sheet index.
PRODUCT HIGHLIGHTS
1. Operation with either 3 V or 5 V power supplies.
2. Flexible power management options including automatic
power-down after conversion.
3. By using the power management options a superior power
performance at slower throughput rates can be achieved.
AD7859: 1 mW typ @ 10 kSPS
AD7859L: 1 mW typ @ 20 kSPS
4. Operates with reference voltages from 1.2 V to the supply.
5. Analog input ranges from 0 V to V
DD
.
6. Self and system calibration.
7. Versatile parallel I/O port.
8. Lower power version AD7859L.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD7861AP | 11-Bit Resolution Simultaneous Sampling A/D Converter |
| AD7861 | 11-Bit Resolution Simultaneous Sampling A/D Converter(同時采樣11位A/D轉(zhuǎn)換器) |
| AD7862 | Simultaneous Sampling Dual 250 kSPS 12-Bit ADC(同時采樣250kSPS 12位雙A/D轉(zhuǎn)換器) |
| AD7863 | Simultaneous Sampling Dual 175 kSPS 14-Bit ADC(同時采樣175kSPS14位雙A/D轉(zhuǎn)換器) |
| AD7864 | Four Channel, Simultaneous Sampling, High Speed, 12-Bit ADC(四通道,同時采樣高速12位A/D轉(zhuǎn)換器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7859AP | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 12-bit Parallel 44-Pin PLCC 制造商:Rochester Electronics LLC 功能描述:12-BIT,8 CHANNEL,SERIAL 200 KSPS I.C. - Bulk 制造商:Analog Devices 功能描述:IC 12-BIT ADC |
| AD7859AP-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 12-bit Parallel 44-Pin PLCC T/R 制造商:Rochester Electronics LLC 功能描述:12-BIT,8 CHANNEL,SERIAL 200 KSPS I.C. - Tape and Reel |
| AD7859APZ | 功能描述:IC ADC 12BIT 8CH 200KSPS 44PLCC RoHS:是 類別: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)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7859APZ-REEL | 功能描述:IC ADC 12BIT 8CHAN LP 44PLCC RoHS:是 類別: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)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7859AS | 制造商:Analog Devices 功能描述:ADC Single SAR 200ksps 12-bit Parallel 44-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:12-BIT 8 CH.SERIAL 200 KSPS I.C. - Bulk 制造商:Analog Devices 功能描述:IC 12-BIT ADC |
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