參數(shù)資料
型號： ADS1234
英文描述： Ultra Low-Noise, 24-Bit Analog-to-Digital Converter
中文描述： 超低噪音，24位模擬數(shù)字轉(zhuǎn)換器
文件頁數(shù)： 1/10頁
文件大?。?/td> 166K
代理商： ADS1234
P
FEATURES
Up to 23.5 Effective Bits
RMS Noise:
– 17nV at 10Hz
– 44nV at 80Hz
On-Board Low Noise Gain-Amp
19.2-Bit Noise-Free Resolution at Gain = 64
Simultaneous 50Hz and 60Hz Rejection:
– Internal Clock: 110 dB
– External Clock: 130 dB
±
1% Low-Drift On-Board Oscillator
Selectable Gains of 1, 2, 64, and 128
Selectable 10/80SPS Conversion Rates
2-Channel Differential Input with Built-In Temp
sensor (ADS1232)
4-Channel Differential Input (ADS1234)
External Reference up to AVDD
Simple Serial Digital Interface
Supply Range: 2.7V to 5.3V
–40
°
C to +105
°
C Temperature Range
DESCRIPTION
The
ADS1232
analog-to-digital (A/D) converters featuring true 23.5
effective-bit performance and exceptional ease of
use. Selectable gains of 1, 2, 64, or 128 allow
full-scale
differential
input
±
19.5mV with a +5V reference. While the ADS1232
offers a two-channel differential input and a built-in
temperature
sensor,
the
four-channel differential input multiplexer. A very
low-noise Gain-Amp features low differential input
current
to
minimize
high-impedance transducers. An on-board oscillator
is provided for excellent 50Hz and 60Hz rejection
without an external clock source. The devices also
feature a low current driver to accommodate an
external crystal; they also accept external clock
sources for all applications.
APPLICATIONS
Weigh Scales
Strain Gauges
Bridge Sensors
Industrial Process Control
Input
Mux
Σ
ADC
REFP REFN
PGA
A = 1, 2, 64,
128
CAP
DVDD
DGND
AGND
A1/TEMP
(1)
A0
NOTE: (1) A1 for ADS1234, TEMP for ADS1232.
AINP1
AINN1
AINP2
AINN2
AINP3
AINN3
AINP4
AINN4
ADS1234
Only
SCLK
SPEED
DRDY/DOUT
PDWN
GAIN [1:0]
AVDD
CAP
External Oscillator
Internal Oscillator
XTAL1/CLKIN XTAL2
ADS1232
ADS1234
SBAS350–JUNE 2005
Ultra Low-Noise, 24-Bit Analog-to-Digital Converter
and
ADS1234
are
precision
ranges
of
±
2.5V
to
ADS1234
features
a
errors
when
using
All of the features of the ADS1232/ADS1234 are
hard-wire selected, without software programming.
Data is accessed over a simple serial interface
compatible with popular microcontrollers such as the
MSP430. The ADS1232 is available in the 24-pin
TSSOP package, and the ADS1234 is available in
the 28-pin TSSOP.
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.
PRODUCT PREVIEW information concerns products in the forma-
tive or design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the
right to change or discontinue these products without notice.
Copyright 2005, Texas Instruments Incorporated
相關(guān)PDF資料
PDF描述
ADS1286L 12-Bit Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
ADS1286 12-Bit Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
ADS1286A RES NET, SMD, 16P, 2.7K, 1 COMM
ADS1286B 12-Bit Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
ADS1286C 12-Bit Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS1234IPW 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit Ultra Low-Noise RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1234IPW 制造商:Texas Instruments 功能描述:IC ADC ULTRALOW NOISE 24BIT SMD 制造商:Texas Instruments 功能描述:IC, ADC, ULTRALOW NOISE, 24BIT, SMD 制造商:Texas Instruments 功能描述:IC, ADC, ULTRALOW NOISE, 24BIT, SMD; Resolution (Bits):24bit; Sampling Rate:80SPS; Supply Voltage Min:2.7V; Supply Voltage Max:5.3V; Supply Current:1.35mA; Digital IC Case Style:TSSOP; No. of Pins:28; Input Channel Type:Differential;;RoHS Compliant: Yes
ADS1234IPWG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit Ultra Low-Noise RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1234IPWR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit Ultra Low-Noise RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1234IPWRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit Ultra Low-Noise RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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