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EVAL-AD7366CBZ PDF预览

EVAL-AD7366CBZ

更新时间: 2024-12-01 05:20:43
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亚德诺 - ADI /
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28页 634K
描述
True Bipolar Input, Dual 1 レs, 12-/14-Bit, 2-Channel SAR ADCs

EVAL-AD7366CBZ 数据手册

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True Bipolar Input, Dual 1 μs,  
12-/14-Bit, 2-Channel SAR ADCs  
AD7366/AD7367  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
V
D
A
AV  
DV  
CC  
DD  
CAP  
CC  
Dual 12-bit/14-bit, 2-channel ADC  
True bipolar analog inputs  
Programmable input ranges:  
10 V, 5 V, 0 V to 10 V  
BUF  
REF  
AD7366/AD7367  
12 V with 3 V external reference  
Throughput rate: 1 MSPS  
Simultaneous conversion with read in less than 1μs  
High analog input impedance  
Low current consumption:  
V
V
A1  
12-/14-BIT  
SUCCESSIVE  
APPROXIMATION  
ADC  
OUTPUT  
DRIVERS  
MUX  
T/H  
D
A
OUT  
A2  
SCLK  
CNVST  
8.3 mA typical in normal mode  
320nA typical in shutdown mode  
AD7366  
72 dB SNR at 50 kHz input frequency  
12-bit no missing codes  
CS  
BUSY  
ADDR  
RANGE0  
RANGE1  
REFSEL  
CONTROL  
LOGIC  
V
V
B1  
V
DRIVE  
AD7367  
76 dB SNR at 50 kHz input frequency  
14-bit no missing codes  
Accurate on-chip reference: 2.5 V 0.2%  
–40°C to +85°C operation  
MUX  
T/H  
12-/14-BIT  
SUCCESSIVE  
APPROXIMATION  
ADC  
OUTPUT  
DRIVERS  
D
B
OUT  
B2  
BUF  
High speed serial interface  
SPI-/QSPI™-/MICROWIRE™-/DSP-compatible  
iCMOS® process technology  
Available in a 24-lead TSSOP  
AGND AGND  
V
D
B
DGND  
SS  
CAP  
Figure 1.  
GENERAL DESCRIPTION  
PRODUCT HIGHLIGHTS  
The AD7366/AD73671 are dual, 12/14-bit, high speed, low  
power, successive approximation analog-to-digital converters  
(ADCs) that feature throughput rates up to 1 MSPS. The device  
contains two ADCs, each preceded by a 2-channel multiplexer,  
and a low noise, wide bandwidth track-and-hold amplifier.  
1. The AD7366/AD7367 can accept true bipolar analog input  
signals, as well as ±1, ±± , ±12 ꢁ (with external refer-  
ence), and ꢀ ꢁ to +1ꢀ ꢁ unipolar signals.  
2. Two complete ADC functions allow simultaneous  
sampling and conversion of two channels.  
The AD7366/AD7367 are fabricated on the Analog Devices,  
Inc. industrial CMOS process (iCMOS®2), which is a technology  
platform combining the advantages of low and high voltage  
CMOS. The process allows the AD7366/AD7367 to accept high  
voltage bipolar signals in addition to reducing power consump-  
tion and package size. The AD7366/AD7367 can accept true  
bipolar analog input signals in the ±1ꢀ ꢁ range, ±± ꢁ range,  
and ꢀ ꢁ to 1ꢀ ꢁ range.  
3. 1 MSPS serial interface; SPI-/QSPI-/DSP-/MICROWIRE-  
compatible interface.  
Table 1. Related Products  
Throughput  
Rate  
Number of  
Channels  
Device  
Resolution  
12-Bit  
AD7366  
AD7366-5  
AD7367  
AD7367-5  
1 MSPS  
Dual, 2-channel  
Dual, 2-channel  
Dual, 2-channel  
Dual, 2-channel  
12-Bit  
500 kSPS  
1 MSPS  
14-Bit  
The AD7366/AD7367 have an on-chip 2.± ꢁ reference that  
can be disabled to allow the use of an external reference. If a  
3 ꢁ reference is applied to the DCAPA andDCAPB pins, the  
AD7366/AD7367 can accept a true bipolar ±12 ꢁ analog input.  
Minimum ±12 ꢁ ꢁDD and ꢁSS supplies are required for the  
±12 ꢁ input range.  
14-Bit  
500 kSPS  
1 Protected by U.S. Patent No. 6,731,232.  
2 iCMOS Process Technology. For analog systems designers within  
industrial/instrumentation equipment OEMs who need high performance  
ICs at higher voltage levels, iCMOS is a technology platform that enables the  
development of analog ICs capable of 30 V and operating at 15 V supplies  
while allowing dramatic reductions in power consumption and package size,  
and increased ac and dc performance.  
Rev. 0  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights of third parties that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2007 Analog Devices, Inc. All rights reserved.  
 
 

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