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AD9215BRUZ-105 PDF预览

AD9215BRUZ-105

更新时间: 2024-10-28 12:27:19
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
36页 962K
描述
10-Bit, 65/80/105 MSPS, 3 V A/D Converter

AD9215BRUZ-105 数据手册

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10-Bit, 65/80/105 MSPS,  
3 V A/D Converter  
Data Sheet  
AD9215  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
AVDD  
DRVDD  
Single 3 V supply operation (2.7 V to 3.3 V)  
SNR = 58 dBc (to Nyquist)  
SFDR = 77 dBc (to Nyquist)  
VIN+  
VIN–  
PIPELINE  
ADC CORE  
SHA  
Low power ADC core: 96 mW at 65 MSPS, 104 mW  
@ 80 MSPS, 120 mW at 105 MSPS  
Differential input with 300 MHz bandwidth  
On-chip reference and sample-and-hold amplifier  
DNL = 0.25 LSB  
REFT  
REFB  
AD9215  
CORRECTION LOGIC  
10  
OR  
OUTPUT BUFFERS  
Flexible analog input: 1 V p-p to 2 V p-p range  
Offset binary or twos complement data format  
Clock duty cycle stabilizer  
D9 (MSB)  
D0  
VREF  
CLOCK  
MODE  
SELECT  
DUTY CYCLE  
STABLIZER  
APPLICATIONS  
SENSE  
REF  
SELECT  
Ultrasound equipment  
0.5V  
IF sampling in communications receivers  
Battery-powered instruments  
Hand-held scopemeters  
AGND  
CLK  
PDWN  
MODE DGND  
Figure 1.  
Low cost digital oscilloscopes  
PRODUCT DESCRIPTION  
The AD9215 is a family of monolithic, single 3 V supply, 10-bit,  
65/80/105 MSPS analog-to-digital converters (ADC). This family  
features a high performance sample-and-hold amplifier (SHA)  
and voltage reference. The AD9215 uses a multistage differential  
pipelined architecture with output error correction logic to pro-  
vide 10-bit accuracy at 105 MSPS data rates and to guarantee no  
missing codes over the full operating temperature range.  
Fabricated on an advanced CMOS process, the AD9215 is avail-  
able in both a 28-lead surface-mount plastic package and a  
32-lead chip scale package and is specified over the industrial  
temperature range of −40°C to +85°C.  
PRODUCT HIGHLIGHTS  
1. The AD9215 operates from a single 3 V power supply and  
features a separate digital output driver supply to accom-  
modate 2.5 V and 3.3 V logic families.  
2. Operating at 105 MSPS, the AD9215 core ADC consumes  
a low 120 mW; at 80 MSPS, the power dissipation is 104  
mW; and at 65 MSPS, the power dissipation is 96 mW.  
3. The patented SHA input maintains excellent performance  
for input frequencies up to 200 MHz and can be config-  
ured for single-ended or differential operation.  
4. The AD9215 is part of several pin compatible 10-, 12-, and  
14-bit low power ADCs. This allows a simplified upgrade  
from 10 bits to 12 bits for systems up to 80 MSPS.  
The wide bandwidth, truly differential sample-and-hold ampli-  
fier (SHA) allows for a variety of user-selectable input ranges  
and offsets including single-ended applications. It is suitable for  
multiplexed systems that switch full-scale voltage levels in  
successive channels and for sampling single-channel inputs at  
frequencies well beyond the Nyquist rate. Combined with pow-  
er and cost savings over previously available ADCs, the AD9215  
is suitable for applications in communications, imaging, and  
medical ultrasound.  
A single-ended clock input is used to control all internal conversion  
cycles. A duty cycle stabilizer compensates for wide variations in the  
clock duty cycle while maintaining excellent performance. The digital  
output data is presented in straight binary or twos complement for-  
mats. An out-of-range signal indicates an overflow condition, which  
can be used with the MSB to determine low or high overflow.  
5. The clock duty cycle stabilizer maintains converter per-  
formance over a wide range of clock pulse widths.  
6. The out of range (OR) output bit indicates when the signal  
is beyond the selected input range.  
Rev. B  
Document Feedback  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no re-  
sponsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights ofthird parties that may result fromits use. Specifications subject to change without notice. No  
licenseis granted byimplication 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 ©2003–2013 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  

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