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| 型號： | EVAL-AD7192EBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/41頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR AD7192 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 24 |
| 采樣率（每秒）： | 4.8k |
| 數(shù)據(jù)接口： | SPI?、QSPI?、MICROWIRE? 和 DSP |
| 輸入范圍： | ±VREF/增益 |
| 工作溫度： | -40°C ~ 105°C |
| 已用 IC / 零件： | AD7192 |
| 已供物品： | 板 |
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4.8 kHz, Ultralow Noise, 24-Bit
Sigma-Delta ADC with PGA
AD7192
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesfor itsuse,norfor anyinfringements ofpatents orother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2009 Analog Devices, Inc. All rights reserved.
FEATURES
RMS noise: 11 nV @ 4.7 Hz (gain = 128)
15.5 noise-free bits @ 2.4 kHz (gain = 128)
Up to 22 noise-free bits (gain = 1)
Offset drift: 5 nV/°C
Gain drift: 1 ppm/°C
Specified drift over time
2 differential/4 pseudo differential input channels
Automatic channel sequencer
Programmable gain (1 to 128)
Output data rate: 4.7 Hz to 4.8 kHz
Internal or external clock
Simultaneous 50 Hz/60 Hz rejection
4 general-purpose digital outputs
Power supply
AVDD: 3 V to 5.25 V
DVDD: 2.7 V to 5.25 V
Current: 4.35 mA
Temperature range: –40°C to +105°C
Package: 24-lead TSSOP
INTERFACE
3-wire serial
SPI, QSPI, MICROWIRE, and DSP compatible
Schmitt trigger on SCLK
APPLICATIONS
Weigh scales
Strain gage transducers
Pressure measurement
Temperature measurement
Chromatography
PLC/DCS analog input modules
Data acquisition
Medical and scientific instrumentation
GENERAL DESCRIPTION
The AD7192 is a low noise, complete analog front end for high
precision measurement applications. It contains a low noise,
24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC).
The on-chip low noise gain stage means that signals of small
amplitude can be interfaced directly to the ADC.
The device can be configured to have two differential inputs or
four pseudo differential inputs. The on-chip channel sequencer
allows several channels to be enabled, and the AD7192 sequentially
converts on each enabled channel. This simplifies communication
with the part. The on-chip 4.92 MHz clock can be used as the
clock source to the ADC or, alternatively, an external clock or
crystal can be used. The output data rate from the part can be
varied from 4.7 Hz to 4.8 kHz.
The device has two digital filter options. The choice of filter
affects the rms noise/noise-free resolution at the programmed
output data rate, the settling time, and the 50 Hz/60 Hz
rejection. For applications that require all conversions to be
settled, the AD7192 includes a zero latency feature.
The part operates with a power supply from 3 V to 5.25 V. It
consumes a current of 4.35 mA. It is housed in a 24-lead TSSOP
package.
FUNCTIONAL BLOCK DIAGRAM
MCLK1 MCLK2
P0/REFIN2(–) P1/REFIN2(+)
DVDD DGND REFIN1(+) REFIN1(–)
AIN1
AIN2
AIN3
AIN4
AINCOM
BPDSW
AGND
AD7192
REFERENCE
DETECT
SERIAL
INTERFACE
AND
CONTROL
LOGIC
TEMP
SENSOR
CLOCK
CIRCUITRY
AVDD
AGND
DOUT/RDY
DIN
SCLK
CS
SYNC
P3
P2
AVDD
AGND
Σ-Δ
ADC
PGA
MUX
07
82
2-
0
01
Figure 1.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EVAL-AD7192EBZ | 制造商:Analog Devices 功能描述:EVAL BOARD, AD7192 24BIT ADC |
| EVAL-AD7193EBZ | 功能描述:EVAL BOARD FOR AD7193 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD7194EBZ | 功能描述:EVAL BOARD FOR AD7194 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD7195EBZ | 功能描述:BOARD EVAL FOR AD7195 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
| EVAL-AD7262EDZ | 功能描述:BOARD EVAL CONTROL AD7262 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
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