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| 型号： | EVAL-AD7793EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/33页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD7793 |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 470 |
| 数据接口： | 串行 |
| 输入范围： | 0 ~ 5 V |
| 在以下条件下的电源（标准）： | 2.5mW @ 470SPS |
| 工作温度： | -40°C ~ 105°C |
| 已用 IC / 零件： | AD7793 |
| 已供物品： | 板，缆线，CD |
| 相关产品： | AD7793BRU-ND - IC ADC 24BIT 3CH LP 16-TSSOP AD7793BRUZ-REEL-ND - IC ADC 24BIT 3CH LP 16-TSSOP AD7793BRUZ-ND - IC ADC 24BIT SIG-DEL 3CH 16TSSOP |
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3-Channel, Low Noise, Low Power, 16-/24-Bit
∑-Δ ADC with On-Chip In-Amp and Reference
AD7792/AD7793
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
2004–2007 Analog Devices, Inc. All rights reserved.
FEATURES
Up to 23 bits effective resolution
RMS noise
40 nV @ 4.17 Hz
85 nV @ 16.7 Hz
Current: 400 μA typical
Power-down: 1 μA maximum
Low noise programmable gain instrumentation amp
Band gap reference with 4 ppm/°C drift typical
Update rate: 4.17 Hz to 470 Hz
3 differential inputs
Internal clock oscillator
Simultaneous 50 Hz/60 Hz rejection
Programmable current sources
On-chip bias voltage generator
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
Thermocouple measurements
RTD measurements
Thermistor measurements
Gas analysis
Industrial process control
Instrumentation
Portable instrumentation
Blood analysis
Smart transmitters
Liquid/gas chromatography
6-digit DVM
FUNCTIONAL BLOCK DIAGRAM
0485
5-
00
1
DOUT/RDY
DIN
SCLK
CS
DVDD
SERIAL
INTERFACE
AND
CONTROL
LOGIC
Σ-Δ
ADC
AD7792: 16-BIT
AD7793: 24-BIT
AIN1(+)
AIN1(–)
AIN2(+)
AIN2(–)
AVDD
GND
MUX
VBIAS
BAND GAP
REFERENCE
INTERNAL
CLOCK
CLK
GND
AVDD
REFIN(–)/AIN3(–)
IOUT1
IOUT2
AVDD
IN-AMP
BUF
REFIN(+)/AIN3(+)
Figure 1.
GENERAL DESCRIPTION
The AD7792/AD7793 are low power, low noise, complete
analog front ends for high precision measurement applications.
The AD7792/AD7793 contain a low noise 16-/24-bit ∑-Δ ADC
with three differential analog inputs. The on-chip, low noise
instrumentation amplifier means that signals of small ampli-
tude can be interfaced directly to the ADC. With a gain
setting of 64, the rms noise is 40 nV when the update rate
equals 4.17 Hz.
The devices contain a precision low noise, low drift internal
band gap reference and can accept an external differential
reference. Other on-chip features include programmable
excitation current sources, burnout currents, and a bias voltage
generator. The bias voltage generator sets the common-mode
voltage of a channel to AVDD/2.
The devices can be operated with either 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 470 Hz.
The parts operate with a power supply from 2.7 V to 5.25 V.
They consume a current of 400 μA typical and are housed in a
16-lead TSSOP package.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-AD7793EBZ | 制造商:Analog Devices 功能描述:EVAL BOARD, AD7793 3CH 24BIT ADC |
| EVAL-AD7793EBZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:3-Channel, Low Noise, Low Power, 16-/24-Bit ?￡-?? ADC with On-Chip In-Amp and Reference |
| EVAL-AD7794EB | 制造商:Analog Devices 功能描述:EVALUATION BOARD I.C. - Bulk |
| EVAL-AD7794EBZ | 功能描述:BOARD EVALUATION FOR AD7794 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-AD7795 | 制造商:AD 制造商全称:Analog Devices 功能描述:Evaluation Board for the AD7795 16-Bit, Low Power Sigma-Delta ADC (6 Channels) |
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