Image AD7606
型号: AD7606
厂商: Analog Devices Inc Analog Devices Inc
标准:
分类: 半导体
描述: 8-/6-/4-channel das with 16-bit,bipolar input,simultaneous sampling adc
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8-/6-/4-Channel DAS with 16-Bit, Bipolar  
Input, Simultaneous Sampling ADC  
AD7606/AD7606-6/AD7606-4  
APPꢀICATIONS  
FEATURES  
8/6/4 simultaneously sampled inputs  
True bipolar analog input ranges: ±10 V, ±± V  
Single ± V analog supply and 2.3 V to ± V VDRIVE  
Fully integrated data acquisition solution  
Analog input clamp protection  
Power-line monitoring and protection systems  
Multiphase motor control  
Instrumentation and control systems  
Multiaxis positioning systems  
Data acquisition systems (DAS)  
Input buffer with 1 MΩ analog input impedance  
Second-order antialiasing analog filter  
On-chip accurate reference and reference buffer  
16-bit ADC with 200 kSPS on all channels  
Oversampling capability with digital filter  
Flexible parallel/serial interface  
SPI/QSPI™/MICROWIRE™/DSP compatible  
Performance  
7 kV ESD rating on analog input channels  
9±.± dB SNR, −107 dB THD  
Table 1. High Resolution, Bipolar Input, Simultaneous  
Sampling DAS Solutions  
Single-  
Ended  
True  
Number of  
Differential Simultaneous  
Inputs  
Resolution  
18 Bits  
Sampling Channels  
AD7609  
8
8
6
4
8
16 Bits  
14 Bits  
±0.± ꢀSB INꢀ, ±0.± ꢀSB DNꢀ  
ꢀow power: 100 mW  
Standby mode: 2± mW  
64-lead ꢀQFP package  
FUNCTIONAꢀ BꢀOCK DIAGRAM  
AVCC  
AVCC  
REGCAP REGCAP  
REFCAPB REFCAPA  
RFB  
1M  
V1  
CLAMP  
CLAMP  
T/H  
SECOND-  
ORDER LPF  
V1GND  
2.5V  
LDO  
2.5V  
LDO  
RFB  
RFB  
1MΩ  
1MΩ  
REFIN/REFOUT  
V2  
CLAMP  
CLAMP  
T/H  
T/H  
T/H  
T/H  
T/H  
T/H  
T/H  
SECOND-  
V2GND  
ORDER LPF  
RFB  
RFB  
1MΩ  
1MΩ  
REF SELECT  
AGND  
2.5V  
REF  
V3  
CLAMP  
CLAMP  
OS 2  
OS 1  
OS 0  
SECOND-  
ORDER LPF  
V3GND  
RFB  
RFB  
1MΩ  
1MΩ  
V4  
CLAMP  
CLAMP  
DOUT  
DOUT  
A
B
SECOND-  
ORDER LPF  
V4GND  
SERIAL  
RFB  
RFB  
1MΩ  
1MΩ  
8:1  
MUX  
PARALLEL/  
SERIAL  
RD/SCLK  
CS  
DIGITAL  
16-BIT  
SAR  
V5  
CLAMP  
CLAMP  
FILTER  
INTERFACE  
SECOND-  
ORDER LPF  
V5GND  
RFB  
RFB  
1MΩ  
1MΩ  
PAR/SER/BYTE SEL  
VDRIVE  
V6  
CLAMP  
CLAMP  
SECOND-  
ORDER LPF  
PARALLEL  
DB[15:0]  
V6GND  
RFB  
RFB  
1MΩ  
1MΩ  
AD7606  
V7  
CLAMP  
CLAMP  
SECOND-  
ORDER LPF  
V7GND  
CLK OSC  
RFB  
RFB  
1MΩ  
1MΩ  
BUSY  
CONTROL  
INPUTS  
V8  
CLAMP  
CLAMP  
SECOND-  
ORDER LPF  
FRSTDATA  
V8GND  
RFB  
1MΩ  
AGND  
CONVST A CONVST B RESET RANGE  
Figure 1.  
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  
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