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| 型号： | AD7193BRUZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/57页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT SPI 4.8K 28-TSSOP |
| 产品培训模块： | Weigh Scale Introduction |
| 标准包装： | 50 |
| 位数： | 24 |
| 采样率（每秒）： | 4.8k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 管件 |
| 输入数目和类型： | 4 个差分，单极；4 个差分，双极；8 个伪差分，单极；8 个伪差分，双极 |
| 产品目录页面： | 777 (CN2011-ZH PDF) |
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4-Channel, 4.8 kHz, Ultralow Noise,
24-Bit Sigma-Delta ADC with PGA
Data Sheet
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
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
2009–2013 Analog Devices, Inc. All rights reserved.
FEATURES
Fast settling filter option
4 differential/8 pseudo differential input channels
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
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: 4.65 mA
Temperature range: 40°C to +105°C
28-lead TSSOP and 32-lead LFCSP packages
Interface
3-wire serial
SPI, QSPI, MICROWIRE, and DSP compatible
Schmitt trigger on SCLK
APPLICATIONS
PLC/DCS analog input modules
Data acquisition
Strain gage transducers
Pressure measurement
Temperature measurement
Flow measurement
Weigh scales
Chromatography
Medical and scientific instrumentation
GENERAL DESCRIPTION
The AD7193 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 interface directly to the ADC.
The device can be configured to have four differential inputs or
eight pseudo differential inputs. The on-chip channel sequencer
allows several channels to be enabled simultaneously, and the
AD7193 sequentially converts on each enabled channel, simplifying
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 a very flexible digital filter, including a fast
settling option. Variables such as output data rate and settling
time are dependent on the option selected. The AD7193 also
includes a zero latency option.
The part operates with a power supply from 3 V to 5.25 V. It
consumes a current of 4.65 mA, and it is available in a 28-lead
TSSOP package and a 32-lead LFCSP package.
FUNCTIONAL BLOCK DIAGRAM
MCLK1 MCLK2
P0/REFIN2(–) P1/REFIN2(+)
DVDD
DGND
REFIN1(+)
REFIN1(–)
AIN1
AIN2
AIN3
AIN4
AINCOM
BPDSW
AGND
AD7193
SERIAL
INTERFACE
AND
CONTROL
LOGIC
TEMP
SENSOR
CLOCK
CIRCUITRY
DOUT/RDY
DIN
SCLK
CS
SYNC
P3
P2
AVDD
AGND
AIN5
AIN6
AIN7
AIN8
Σ-Δ
ADC
PGA
MUX
08367-
001
Figure 1.
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|---|---|
| AD7193BRUZ | 制造商:Analog Devices 功能描述:IC ADC 24BIT 4.8KHZ TSSOP-28 |
| AD7193BRUZ-REEL | 功能描述:IC ADC 24BIT SPI 4.8KHZ 28TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7194 | 制造商:AD 制造商全称:Analog Devices 功能描述:8-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA |
| AD7194BCPZ | 功能描述:IC ADC 24BIT SPI 4.8K 32-LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7194BCPZ-REEL | 功能描述:IC ADC 24BIT SPI 4.8KHZ 32LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
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