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| 型号： | EVAL-AD7796EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD7796 |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 123 |
| 数据接口： | 串行 |
| 输入范围： | ±VREF/128 |
| 在以下条件下的电源（标准）： | 1.6mW @ 123SPS |
| 工作温度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD7796 |
| 已供物品： | 板，CD |
| 相关产品： | AD7796BRUZ-REEL-ND - IC ADC 16BIT SIG-DEL 1CH 16TSSOP AD7796BRUZ-ND - IC ADC 16BIT SIG-DEL 1CH 16TSSOP |
Low Power, 16-/24-Bit Sigma-Delta ADC
for Bridge Sensors
AD7796/AD7797
Rev. A
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
RMS noise: 65 nV
Instrumentation amp
Temperature sensor
Internal clock oscillator
Simultaneous 50 Hz/60 Hz rejection
Update rate: 4.17 Hz to 123 Hz
Current: 250 μA typ
Power-down: 1 μA
Power supply: 2.7 V to 5.25 V
–40°C to +85°C temperature range
Independent interface power supply
16-lead TSSOP
INTERFACE
3-wire serial
SPI, QSPI, MICROWIRE, and DSP compatible
Schmitt trigger on SCLK
APPLICATIONS
Weigh scales
Strain gages
Industrial process control
Instrumentation
Portable instrumentation
GENERAL DESCRIPTION
The AD7796/AD7797 are complete, analog front ends for high
precision, bridge sensor applications such as weigh scales. The
AD7796/AD7797 contain a Σ-Δ ADC capable of 16-/24-bit
resolution, respectively. The on-chip instrumentation amplifier
has a fixed gain of 128, allowing small amplitude signals such as
those from bridge sensors to be directly interfaced to the ADC.
Each part has one differential input and contains a temperature
sensor that is internally connected to the ADC. This sensor can
be used to perform temperature compensation of the bridge.
The devices can be operated with the internal clock or an
external clock. The output data rate from the parts is software-
programmable and can be varied from 4.17 Hz to 123 Hz.
The AD7796/AD7797 operate with a power supply from 2.7 V
to 5.25 V. Each part consumes a current of 250 μA typical and is
housed in a 16-lead TSSOP.
FUNCTIONAL BLOCK DIAGRAM
AD7796/
AD7797
DOUT/RDY
DIN
SCLK
AIN(+)
AIN(–)
MUX
GND
Σ-Δ
ADC
AVDD
×128
REFERENCE
TEMP
SENSOR
INTERNAL
CLOCK
GND AVDD
REFIN(–)
REFIN(+)
CLK
AD7796: 16-BIT ADC
AD7797: 24-BIT ADC
SERIAL
INTERFACE
AND
CONTROL
LOGIC
CS
DVDD
06
08
3-
00
1
Figure 1.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-AD7797EB | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Power, 16-/24-Bit Sigma-Delta ADC for Bridge Sensors |
| EVAL-AD7797EBZ | 功能描述:BOARD EVALUATION FOR AD7797 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| EVAL-AD7798EB | 制造商:Analog Devices 功能描述:EVAL BD LOW PWR, 16BIT BFFRED SIGMA-DELTA ADC - Bulk |
| EVAL-AD7798EBZ | 功能描述:BOARD EVAL FOR AD7798 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| EVAL-AD7799EBZ | 功能描述:BOARD EVALUATION FOR AD7799 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
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