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| 型號： | AD7739BRUZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 24BIT 8CH SIG-DEL 24TSSOP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 位數(shù)： | 24 |
| 采樣率（每秒）： | 15.1k |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 100mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 24-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 8 個單端，單極；8 個單端，雙極；4 個差分，單極；4 個差分，雙極 |
| 配用： | EVAL-AD7739EBZ-ND - BOARD EVAL FOR AD7739 |
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8-Channel, High Throughput,
24-Bit Sigma-Delta ADC
Data Sheet
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
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
2003–2013 Analog Devices, Inc. All rights reserved.
FEATURES
High resolution ADC
24 bits, no missing codes
±0.0015% nonlinearity
Optimized for fast channel switching
18-bit p-p resolution (21 bits effective) at 500 Hz
16-bit p-p resolution (19 bits effective) at 4 kHz
On-chip per channel system calibration
Configurable inputs
8 single-ended or 4 fully differential
Input ranges
+625 mV, ±625 mV, +1.25 V, ±1.25 V, +2.5 V, ±2.5 V
3-wire serial interface
SPI, QSPI, MICROWIRE, and DSP compatible
Schmitt trigger on logic inputs
Single-supply operation
5 V analog supply
3 V or 5 V digital supply
Package: 24-lead TSSOP
APPLICATIONS
PLCs/DCSs
Multiplexing applications
Process control
Industrial instrumentation
FUNCTIONAL BLOCK DIAGRAM
Figure 1.
GENERAL DESCRIPTION
The AD7739 is a high precision, high throughput analog front
end. True 16-bit p-p resolution is achievable with a total
conversion time of 250 μs (4 kHz channel switching), making it
ideally suited to high resolution multiplexing applications.
The part can be configured via a simple digital interface, which
allows users to balance the noise performance against data
throughput up to 15 kHz.
The analog front end features eight single-ended or four fully
differential input channels with unipolar or bipolar 625 mV,
1.25 V, and 2.5 V input ranges. It accepts a common-mode
input voltage from 200 mV above AGND to AVDD 300 mV.
The differential reference input features no-reference detect
capability. The ADC also supports per channel system
calibration options.
The digital serial interface can be configured for 3-wire
operation and is compatible with microcontrollers and digital
signal processors. All interface inputs are Schmitt triggered.
The part is specified for operation over the extended industrial
temperature range of –40°C to +105°C.
and AD7732.
(8.5 kHz channel switching for 16-bit performance) and higher
AIN leakage current. The AD7738 multiplexer output is pinned
out externally, allowing the user to implement programmable
gain or signal conditioning before being applied to the ADC.
The AD7734 analog front end features four single-ended input
channels with unipolar or true bipolar input ranges to ±10 V
while operating from a single +5 V analog supply. The AD7734
accepts an analog input overvoltage to ±16.5 V without
degrading the performance of the adjacent channels.
features two fully differential input channels.
DVDD
SERIAL
INTERFACE
CONTROL
LOGIC
MUX
REFERENCE
DETECT
I/O PORT
CLOCK
GENERATOR
24-BIT
- ADC
BUFFER
AD7739
CALIBRATION
CIRCUITRY
AVDD
SCLK
DIN
DOUT
CS
RDY
RESET
AIN4
AIN5
AIN6
AIN7
AINCOM/P0
AIN0
AIN1
AIN2
AIN3
REFIN(–)
REFIN(+)
SYNC/P1
DGND
DVDD
MCLKIN
MCLKOUT
AGND
AVDD
03742-0-012
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相關(guān)代理商/技術(shù)參數(shù) |
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| AD773A | 制造商:AD 制造商全稱:Analog Devices 功能描述:10-Bit, 20 MSPS Monolithic A/D Converter |
| AD773AJD | 制造商:Analog Devices 功能描述:ADC Single Pipelined 20Msps 10-bit Parallel 28-Pin CDIP 制造商:Rochester Electronics LLC 功能描述:IC, 10-BIT 20 MSPS ADC - Bulk |
| AD773AKD | 制造商:AD 制造商全稱:Analog Devices 功能描述:10-Bit, 20 MSPS Monolithic A/D Converter |
| AD773ASD/883B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 10-Bit |
| AD773-EB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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