参数资料
型号: AD7798BRUZ
厂商: Analog Devices Inc
文件页数: 1/28页
文件大小: 0K
描述: IC ADC 16BIT SIG-DEL 3CH 16TSSOP
标准包装: 96
位数: 16
采样率(每秒): 470
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 2mW
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: 16-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 16-TSSOP
包装: 管件
输入数目和类型: 3 个差分,单极;3 个差分,双极
产品目录页面: 779 (CN2011-ZH PDF)
3-Channel, Low Noise, Low Power,
16-/24-Bit, Σ-Δ ADC with On-Chip In-Amp
Data Sheet
Rev. B
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
2005–2013 Analog Devices, Inc. All rights reserved.
FEATURES
RMS noise:
27 nV at 4.17 Hz (AD7799)
65 nV at 16.7 Hz (AD7799)
40 nV at 4.17 Hz (AD7798)
85 nV at 16.7 Hz (AD7798)
Current: 380 A typical
Power-down: 1 A maximum
Low noise, programmable gain, instrumentation amp
Update rate: 4.17 Hz to 470 Hz
3 differential inputs
Internal clock oscillator
Simultaneous 50 Hz/60 Hz rejection
Reference detect
Low-side power switch
Programmable digital outputs
Burnout currents
Power supply: 2.7 V to 5.25 V
–40°C to +105°C temperature range
Independent interface power supply
16-lead TSSOP package
INTERFACE
3-wire serial
SPI, QSPI, MICROWIRE, and DSP compatible
Schmitt trigger on SCLK
APPLICATIONS
Weigh scales
Pressure measurement
Strain gauge transducers
Gas analysis
Industrial process control
Instrumentation
Portable instrumentation
Blood analysis
Smart transmitters
Liquid/gas chromotography
6-digit DVM
FUNCTIONAL BLOCK DIAGRAM
DOUT/RDY
DIN
SCLK
CS
DVDD
SERIAL
INTERFACE
AND
CONTROL
LOGIC
Σ-Δ
ADC
AD7798/AD7799
AD7798: 16-BIT
AD7799: 24-BIT
AIN2(+)
AIN2(–)
AIN3(+)/P1
AIN1(+)
AIN1(–)
AIN3(–)/P2
AVDD
GND
MUX
INTERNAL
CLOCK
GND
AVDD
REFIN(–)
PSW
IN-AMP
REFERENCE
DETECT
REFIN(+)
04856-
001
Figure 1.
GENERAL DESCRIPTION
The AD7798/AD7799 are low power, low noise, complete
analog front ends for high precision measurement applications.
The AD7798/AD7799 contains a low noise, 16-/24-bit ∑-
ADC with three differential analog inputs. The on-chip, low
noise instrumentation amplifier means that signals of small
amplitude can be interfaced directly to the ADC. With a gain
setting of 64, the rms noise is 27 nV for the AD7799 and 40 nV
for the AD7798 when the update rate equals 4.17 Hz.
On-chip features include a low-side power switch, reference
detect, programmable digital output pins, burnout currents,
and an internal clock oscillator. The output data rate from the
part is software-programmable and can be varied from 4.17 Hz
to 470 Hz.
The part operates with a power supply from 2.7 V to 5.25 V.
The AD7798 consumes a current of 300 A typical, whereas the
AD7799 consumes 380 A typical. Both devices are housed in a
16-lead TSSOP package.
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AD7798BRUZ-REEL 功能描述:IC ADC 16BIT 3CH LP 16-TSSOP 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
AD7799 制造商:AD 制造商全称:Analog Devices 功能描述:Low Power, 24-Bit/16-Bit Sigma-Delta ADC with In-Amp
AD7799BRU 功能描述:IC ADC 24BIT 3CH LP 16-TSSOP RoHS:否 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
AD7799BRU-REEL 功能描述:IC ADC 24BIT 3CH LP 16-TSSOP RoHS:否 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
AD7799BRUZ 功能描述:IC ADC 24BIT SIG-DEL 3CH 16TSSOP 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 系列:microPOWER™ 位数:8 采样率(每秒):1M 数据接口:串行,SPI? 转换器数目:1 功率耗散(最大):- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘(4x4) 包装:Digi-Reel® 输入数目和类型:8 个单端,单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6