參數(shù)資料
型號: AD7870AJN
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: LC2MOS Complete, 12-Bit, 100 kHz , Sampling ADC
中文描述: 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PDIP24
封裝: 0.300 INCH, PLASTIC, DIP-24
文件頁數(shù): 1/12頁
文件大?。?/td> 250K
代理商: AD7870AJN
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
AD7870A
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
Analog Devices, Inc., 1997
LC
2
MOS
Complete, 12-Bit, 100 kHz , Sampling ADC
FUNCTIONAL BLOCK DIAGRAM
FEATURES
Complete Monolithic 12-Bit ADC with:
2
m
s Track/Hold Amplifier
8
m
s A/D Converter
On-Chip Reference
Laser-Trimmed Clock
Parallel, Byte and Serial Digital Interface
70 dB SNR at 10 kHz Input Frequency
57 ns Data Access Time
Low Power—60 mW typ
APPLICATIONS
Digital Signal Processing
Speech Recognition and Synthesis
Spectrum Analysis
High Speed Modems
DSP Servo Control
GENERAL DESCRIPTION
The AD7870A is a fast, complete, 12-bit A/D converter. It con-
sists of a track/hold amplifier, 8
μ
s successive approximation
ADC, 3 V buried Zener reference and versatile interface logic.
The ADC features a self-contained internal clock that is laser
trimmed to guarantee accurate control of conversion time. No
external clock timing components are required; the on-chip
clock may be overridden by an external clock if required.
AD7870A offers a choice of three data output formats: a single,
parallel, 12-bit word, two 8-bit bytes or serial data. Fast bus
access times and standard control inputs ensure easy interfacing
to modern microprocessors and digital signal processors.
The AD7870A operates from
±
5 V power supplies, accepts
bipolar input signals of
±
3 V and can convert full power signals
up to 50 kHz.
In addition to the traditional dc accuracy specifications such as
linearity, full-scale and offset errors, the AD7870A is also fully
specified for dynamic performance parameters including har-
monic distortion and signal-to-noise ratio.
The AD7870A is fabricated in Analog Devices’ linear compati-
ble CMOS (LC
2
MOS) process, a mixed technology process that
combines precision bipolar circuits with low power CMOS logic.
The part is available in a 24-pin, 0.3-inch wide, plastic dual in-
line package (DIP).
PRODUCT HIGHLIGHTS
1. Complete 12-bit ADC on a chip.
The AD7870A is the most complete monolithic ADC avail-
able and combines a 12-bit ADC with internal clock, track/
hold amplifier and reference on a single chip.
2. Dynamic specifications for DSP users.
The AD7870A is fully specified and tested for ac parameters,
including signal-to-noise ratio, harmonic distortion and inter-
modulation distortion. Key digital timing parameters are also
tested and guaranteed over the full operating temperature
range.
3. Fast microprocessor interface.
Data access times of 57 ns make the AD7870A compatible
with modern 8- and 16-bit microprocessors and digital signal
processors.
相關PDF資料
PDF描述
AD7874AN LC2MOS 4-Channel, 12-Bit Simultaneous Sampling Data Acquisition System
AD7874AQ LC2MOS 4-Channel, 12-Bit Simultaneous Sampling Data Acquisition System
AD7874AR LC2MOS 4-Channel, 12-Bit Simultaneous Sampling Data Acquisition System
AD7874BN 10-Bit, 60 MSPS ADC SE/Diff, Int/Ext Ref., program. input range w/Pwrdn and comp. to ADS822/3/5/8 28-SSOP -40 to 85
AD7874BQ 10-Bit, 60 MSPS ADC SE/Diff, Int/Ext Ref., program. input range w/Pwrdn and comp. to ADS822/3/5/8 28-SSOP -40 to 85
相關代理商/技術參數(shù)
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AD7870AJNZ 功能描述:IC ADC 12BIT SAMPLING 3V 24-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1 系列:- 位數(shù):14 采樣率(每秒):83k 數(shù)據(jù)接口:串行,并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散(最大):95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP(0.600",15.24mm) 供應商設備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個單端,雙極
AD7870AQ 功能描述:IC ADC 12BIT SAMPLING 3V 24-CDIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數(shù):12 采樣率(每秒):3M 數(shù)據(jù)接口:- 轉(zhuǎn)換器數(shù)目:- 功率耗散(最大):- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:-
AD7870BQ 功能描述:IC ADC 12BIT SAMPLING 3V 24-CDIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1 系列:- 位數(shù):14 采樣率(每秒):83k 數(shù)據(jù)接口:串行,并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散(最大):95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP(0.600",15.24mm) 供應商設備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個單端,雙極
AD7870CQ 功能描述:IC ADC 12BIT SAMPLING 3V 24-CDIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:250 系列:- 位數(shù):12 采樣率(每秒):1.8M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散(最大):1.82W 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-LQFP 供應商設備封裝:48-LQFP(7x7) 包裝:管件 輸入數(shù)目和類型:2 個單端,單極
AD7870JN 功能描述:IC ADC 12BIT LC2MOS 100KHZ 24DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數(shù):12 采樣率(每秒):3M 數(shù)據(jù)接口:- 轉(zhuǎn)換器數(shù)目:- 功率耗散(最大):- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:-