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參數(shù)資料
| 型號(hào)： | DS1244WP-120IND |
| 英文描述： | 256k NV SRAM with Phantom Clock |
| 中文描述： | 256k非易失SRAM與幻影時(shí)鐘 |
| 文件頁數(shù)： | 1/19頁 |
| 文件大?。?/td> | 292K |
| 代理商： | DS1244WP-120IND |
ADS1244
SBAS273 – DECEMBER 2002
www.ti.com
DESCRIPTION
The ADS1244 is a 24-bit, delta-sigma Analog-to-Digital (A/D)
converter. It offers excellent performance and very low power
in an MSOP-10 package and is well suited for demanding
high-resolution measurements, especially in portable and
other space- and power-constrained systems.
A 3rd-order delta-sigma modulator and digital filter form the
basis of the A/D converter. The analog modulator has a
±
5V
differential input range. The digital filter rejects both 50Hz
and 60Hz signals, completely settles in one cycle, and
outputs data at 15 samples per second.
A simple, 2-wire serial interface provides all the necessary
control. Data retrieval, self-calibration, and Sleep Mode are
handled with a few simple waveforms. When only single
conversions are needed, the ADS1244 can be shut down
(Sleep Mode) while idle between measurements to dramati-
cally reduce the overall power dissipation. Multiple ADS1244s
can be connected together to create a synchronously sam-
pling multichannel measurement system. The ADS1244 is
designed to easily connect to microcontrollers, such as the
MSP430.
The ADS1244 supports 2.5V to 5.25V analog supplies and
1.8V to 3.6V digital supplies. Power is typically less than
270
μ
W in normal operation and less than 1
μ
W during Sleep
Mode.
FEATURES
G
20-BIT EFFECTIVE RESOLUTION
G
CURRENT CONSUMPTION: 90
μ
A
G
ANALOG SUPPLY: 2.5V to 5.25V
G
DIGITAL SUPPLY: 1.8V to 3.6V
G
±
5V DIFFERENTIAL INPUT RANGE
G
0.0002% INL (TYP), 0.0008% INL (MAX)
G
SIMPLE 2-WIRE SERIAL INTERFACE
G
SIMULTANEOUS 50Hz AND 60Hz REJECTION
G
SINGLE CONVERSIONS WITH SLEEP MODE
G
SINGLE-CYCLE SETTLING
G
SELF-CALIBRATION
G
WELL-SUITED FOR MULTICHANNEL SYSTEMS
G
EASILY CONNECTS TO THE MSP430
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 2002, Texas Instruments Incorporated
Low-Power, 24-Bit
ANALOG-TO-DIGITAL CONVERTER
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
APPLICATIONS
G
HAND-HELD INSTRUMENTATION
G
PORTABLE MEDICAL EQUIPMENT
G
INDUSTRIAL PROCESS CONTROL
G
WEIGH SCALES
Digital
Filter
Serial
Interface
DRDY/DOUT
SCLK
CLK
AINN
AINP
VREFP VREFN
AVDD
GND
DVDD
3rd-Order
Modulator
ADS1244
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1244YP-70 | CAT5E PATCH CORD 30 FOOT BEIGE |
| DS1244Y-70 | 256k NV SRAM with Phantom Clock |
| DS1244W-120 | 256k NV SRAM with Phantom Clock |
| DS1244WP-120 | 256k NV SRAM with Phantom Clock |
| DS1244 | Low-Power, 24-Bit ANALOG-TO-DIGITAL CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1244WP-120IND+ | 功能描述:實(shí)時(shí)時(shí)鐘 256k NV SRAM w/Phantom Clock RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1244Y | 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:Real Time Clock, Non-Volatile, 28 Pin, Plastic, DIP |
| DS1244Y120 | 制造商:Maxim Integrated Products 功能描述: |
| DS1244Y-120 | 制造商:Maxim Integrated Products 功能描述: |
| DS1244Y-150 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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