Zakładka z wyszukiwarką danych komponentów |
|
ADS1234 Arkusz danych(PDF) 1 Page - Texas Instruments |
|
|
ADS1234 Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 40 page 1 FEATURES DESCRIPTION APPLICATIONS Input Mux DS ADC REFP REFN PGA Gain= 1,2,64,or128 CAP DVDD DGND AGND A1/TEMP (1) A0 NOTE:(1)A1forADS1234,TEMPforADS1232. AINP1 AINN1 AINP2 AINN2 AINP3 AINN3 AINP4 AINN4 ADS1234 Only SCLK SPEED DRDY/DOUT PDWN GAIN[1:0] AVDD CAP ExternalOscillator InternalOscillator CLKIN/XTAL1 XTAL2 ADS1232 ADS1234 SBAS350F – JUNE 2005 – REVISED FEBRUARY 2008 www.ti.com 24-Bit Analog-to-Digital Converter For Bridge Sensors 2 • Complete Front-End for Bridge Sensors The ADS1232 and ADS1234 are precision 24-bit analog-to-digital converters (ADCs). With an onboard, • Up to 23.5 Effective Bits low-noise programmable gain amplifier (PGA), • Onboard, Low-Noise PGA precision delta-sigma ADC and internal oscillator, the • RMS Noise: ADS1232/4 provide a complete front-end solution for 17nV at 10SPS (PGA = 128) bridge sensor applications including weigh scales, 44nV at 80SPS (PGA = 128) strain gauges and pressure sensors. • 19.2-Bit Noise-Free Resolution at Gain = 64 The input multiplexer accepts either two (ADS1232) • Over 100dB Simultaneous 50Hz and 60Hz or four (ADS1234) differential inputs. The ADS1232 also includes an onboard temperature sensor to Rejection monitor ambient temperature. The onboard, low-noise • Flexible Clocking: PGA has a selectable gain of 1, 2, 64, or 128 Low-Drift Onboard Oscillator (±3%) supporting a full-scale differential input of ±2.5V, Optional External Crystal ±1.25V, ±39mV, or ±19.5mV. The delta-sigma ADC • Selectable Gains of 1, 2, 64, and 128 has 23.5-bit effective resolution and is comprised of a 3rd-order modulator and 4th-order digital filter. Two • Easy Ratiometric Measurements– data rates are supported: 10SPS (with both 50Hz and External Voltage Reference up to 5V 60Hz rejection) and 80SPS. The ADS1232/4 can be • Selectable 10SPS or 80SPS Data Rates clocked externally using an oscillator or a crystal. • Two-Channel Differential Input with Built-In There is also an internal oscillator available that Temperature Sensor (ADS1232) requires no external components. Offset calibration is performed on-demand and the ADS1232/4 can be • Four-Channel Differential Input (ADS1234) put in a low-power standby mode or shut off • Simple Serial Digital Interface completely in power-down mode. All of the features of • Supply Range: 2.7V to 5.3V the ADS1232/4 are operated through simple pin-driven control. There are no digital registers to • –40°C to +105°C Temperature Range program in order to simplify software development. Data are output over an easily-isolated serial interface that connects directly to the MSP430 and • Weigh Scales other microcontrollers. • Strain Gauges The ADS1232 is available in a TSSOP-24 package • Pressure Sensors and the ADS1234 is in a TSSOP-28. Both are fully • Industrial Process Control specified from -40 °C to +105°C. 1 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. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2005–2008, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Podobny numer części - ADS1234 |
|
Podobny opis - ADS1234 |
|
|
Link URL |
Polityka prywatności |
ALLDATASHEET.PL |
Czy Alldatasheet okazała się pomocna? [ DONATE ] |
O Alldatasheet | Reklama | Kontakt | Polityka prywatności | Linki | Lista producentów All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |