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| 型號： | AD7329BRUZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/41頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT+SAR 8CHAN 24-TSSOP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 1M |
| 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）： | 30mW |
| 電壓電源： | 雙 ± |
| 工作溫度： | -40°C ~ 85°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-AD7329CBZ-ND - BOARD EVALUATION FOR AD7329CBZ |
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1 MSPS, 8-Channel, Software-Selectable,
True Bipolar Input, 12-Bit Plus Sign ADC
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
2006–2014 Analog Devices, Inc. All rights reserved.
FEATURES
12-bit plus sign SAR ADC
True bipolar input ranges
Software-selectable input ranges
±10 V, ±5 V, ±2.5 V, 0 V to +10 V
1 MSPS throughput rate
8 analog input channels with channel sequencer
Single-ended true differential and pseudo differential
analog input capability
High analog input impedance
MUXOUT and ADCIN pins allow separate access to mux and ADC
Low power: 21 mW
Temperature indicator
Full power signal bandwidth: 20 MHz
Internal 2.5 V reference
High speed serial interface
i
CMOS process technology
24-lead TSSOP package
Power-down modes
FUNCTIONAL BLOCK DIAGRAM
VIN0
VIN1
VIN2
VIN3
VIN4
VIN5
VIN6
VIN7
AD7329
AGND
VSS
VDRIVE
DIN
CS
SCLK
DOUT
VCC
REFIN/REFOUT
VDD
ADCIN–
ADCIN+
MUXOUT+
MUXOUT–
T/H
CHANNEL
SEQUENCER
13-BIT SUCCESSIVE
APPROXIMATION
ADC
CONTROL
LOGIC AND
REGISTERS
I/P
MUX
2.5V
VREF
05402-
001
Figure 1.
GENERAL DESCRIPTION
approximation ADC designed on the iCMOS (industrial
CMOS) process. iCMOS is a process combining high voltage
CMOS and low voltage CMOS. It enables the development of
a wide range of high performance analog ICs capable of 33 V
operation in a footprint that no previous generation of high
voltage parts could achieve. Unlike analog ICs using conventional
CMOS processes, iCMOS components can accept bipolar input
signals while providing increased performance, dramatically
reduced power consumption, and reduced package size.
The AD7329 can accept true bipolar analog input signals. The
AD7329 has four software-selectable input ranges: ±10 V, ±5 V,
±2.5 V, and 0 V to +10 V. Each analog input channel can be
independently programmed to one of the four input ranges.
The analog input channels on the AD7329 can be programmed
to be single-ended, true differential, or pseudo differential.
The ADC contains a 2.5 V internal reference. The AD7329 also
allows for external reference operation. If a 3 V reference is
bipolar ±12 V analog input. The ADC has a high speed serial
interface that can operate at throughput rates up to 1 MSPS.
PRODUCT HIGHLIGHTS
1. The AD7329 can accept true bipolar analog input signals,
±10 V, ±5 V, ±2.5 V, and 0 V to +10 V unipolar signals.
2. The eight analog inputs can be configured as eight single-
ended inputs, four true differential input pairs, four pseudo
differential inputs, or seven pseudo differential inputs.
3. 1 MSPS serial interface. SPI-/QSPI-/DSP-/MICROWIRE-
compatible interface.
4. Low power, 21 mW, at 1 MSPS.
5. The MUXOUT± and ADCIN± pins allow for signal conditioning
of the mux output prior to entering the ADC.
Table 1. Similar Devices
Device
Number
Throughput Rate
Number of Channels
1000 kSPS
8
500 kSPS
8
1000 kSPS
4
500 kSPS
4
1000 kSPS
2
500 kSPS
2
1
Protected by U.S. Patent No. 6,731,232.
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