参数资料
| 型号： | AD7789BRM |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT LP 10-MSOP |
| 标准包装： | 50 |
| 位数： | 24 |
| 采样率（每秒）： | 16.6 |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 230µW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 管件 |
| 输入数目和类型： | 1 个差分，单极；1 个差分，双极 |
Low Power, 16-/24-Bit,
Sigma-Delta ADCs
AD7788/AD7789
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
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
2006 Analog Devices, Inc. All rights reserved.
FEATURES
AD7788: 16-bit resolution
AD7789: 24-bit resolution
Power
Supply: 2.5 V to 5.25 V operation
Normal: 75 μA maximum
Power-down: 1 μA maximum
RMS noise: 1.5 μV
AD7788: 16-bit p-p resolution
AD7789: 19-bit p-p resolution (21.5 bits effective)
Integral nonlinearity: 3.5 ppm typical
Simultaneous 50 Hz and 60 Hz rejection
Internal clock oscillator
VDD monitor channel
10-lead MSOP
INTERFACE
3-wire serial
SPI-, QSPI-, MICROWIRE-, and DSP-compatible
Schmitt trigger on SCLK
APPLICATIONS
Smart transmitters
Battery applications
Portable instrumentation
Sensor measurement
Temperature measurement
Pressure measurement
Weigh scales
4 to 20 mA loops
FUNCTIONAL BLOCK DIAGRAM
03
539
-00
1
SERIAL
INTERFACE
AND
CONTROL
LOGIC
CLOCK
*AD7788: 16-BIT ADC
AD7789: 24-BIT ADC
AIN(+)
AIN(–)
GND
Σ-Δ
ADC*
AD7788/
AD7789
REFIN(+) REFIN(–)
VDD
DOUT/RDY
DIN
SCLK
CS
Figure 1.
GENERAL DESCRIPTION
The AD7788/AD7789 are low power, low noise, analog front
ends for low frequency measurement applications. The AD7789
contains a low noise, 24-bit, ∑-Δ ADC with one differential
input. The AD7788 is a 16-bit version of the AD7789.
The devices operate from an internal clock. Therefore, the
user does not have to supply a clock source to the devices.
The output data rate is 16.6 Hz, which gives simultaneous
50 Hz/60 Hz rejection.
The parts operate with a single power supply from 2.5 V to
5.25 V. When operating from a 3 V supply, the power dissi-
pation for the part is 225 μW maximum. The AD7788/AD7789
are available in a 10-lead MSOP.
相关PDF资料 |
PDF描述 |
|---|---|
| AD7790BRM | IC ADC 16BIT BUFFERED LP 10MSOP |
| AD7791BRM | IC ADC 24BIT BUFFERED LP 10MSOP |
| AD7793BRU | IC ADC 24BIT 3CH LP 16-TSSOP |
| AD7794BRU | IC ADC 24BIT 6CH LP 24-TSSOP |
| AD7797BRUZ-REEL | IC ADC 24BIT SIG-DEL 1CH 16TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7789BRM-REEL | 功能描述:IC ADC 24BIT SIGMA-DELTA 10-MSOP 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 |
| AD7789BRMZ | 功能描述:IC ADC 24BIT LP 10-MSOP 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 |
| AD7789BRMZ-REEL | 功能描述:IC ADC 24BIT SIGMA-DELTA 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率（每秒）:15 数据接口:MICROWIRE?，串行，SPI? 转换器数目:1 功率耗散（最大）:480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN（5x7） 包装:带卷 (TR) 输入数目和类型:16 个单端，双极；8 个差分，双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| AD779 | 制造商:AD 制造商全称:Analog Devices 功能描述:14-Bit 128 kSPS Complete Sampling ADC |
| AD7790 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Power, 16-Bit Buffered Sigma-Delta ADC |
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